TECHNICAL MANUAL ON A SOVIET NAVAL PLAN POSITION REPEATER

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80T00246A071800080001-6
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 89
• Document Creation Date: December 27, 2016
• Document Release Date: November 1, 2013
• Sequence Number: 1
• Publication Date: March 1, 1964
• Content Type: REPORT

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CENTRAL INTELLIGENCE AGENCY
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This material contaitls. informition affecting the National Defense of the United States within the meaning of the Espionage Laws, Title
18, 17 S.C. Secs. 793 and 794, the transmission or revelation of which in any manner to an unauthorized person is prohibited by law.
S-E-C-R-E-T
NO FOREIGN DISSn
COUNTRY
USSR
REPORT
SUBJECT
Technical Manual on a Soviet
DATE DISTR.
/
March 1964
Naval,Plan Position Repeater
NO. PAGES 1
REFERENCES
DATE OF
INFO.
PLACE &
DATE ACQ.
THIS Is UNEVALUATED
50X1
50X1-HUM
INFORMATION.
SOURCE GRADINGS ARE DEFINITIVE.
APPRAISAL OF CONTENT IS TENTATIVE
3
English-language, Soviet manual on a naval radar
scope entitled Plan _Position Repeater (PPR): Description'
and Operating Instructions- ]
--a, 50X1-HUM
The manual consists of 77 pages plus diagrams.
Pages 1, 7, and 45 are missing. No date or publishing data
appeared in the manual. Although the radar for which the
PPR is designed is not identified in the manual, ranges of
5, 20, and 75 miles are given. The radar may be the HIGH 50X1-HUM
SIEVE.
\
Distribution of Attachmgn,,t for Retention:
ORR:
OSI:
Army:
Army/FSTC:
Navy:
Navy/STIC:
1. copy
L copy
1- copy
1' copy
2 copies
2 copies
Air
Air/FTD:
NSA:
1 copy
2 copies
1 copy
6/ coties
(1 copy forwarded
previouslY)
50X1-HUM
S-E-C-R-E-T
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GROUP 1
Excluded from automatic
downgrading and
declassification
STATE
I DIA
I ARMY I NAVY
(Note: Field distribution indicated by "#".)
I AIR I NSA I 4i1X NIC I out I SAC
Army/FSTC; Navy/STIC; Air/FTD
50X1-HUM
5
4
3
2
1
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SECRET
NO FOREIGN DISSEM
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PLAN POSITION REPEATER (PPR)
DESCRIPTION AND OPERATING INSTRUCTIONS
(English Language)
Si
SECRET
NO FOREIGN DISSEM GROUP
Eclded hon. eutemelk deengredini end
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dedeisificatien
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PLAN POSITION REPEATER (P.P.R)
DESCRIPTION AND OPERATING
INSTRUCTIONS
No Foreign Dissem
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t-;?,,-1:i'47..DeffNiati
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CONT2NTS
PART I
D..;SCDIPTIOIT,
Pa;zo
Chauter I, General Information 4te 9
Designation 9
Component Units ? 9
Driof Specificatiom ? 9
P.P.R? Design 11
Chapter II. Principle of 011eration 13
Block Dia3ram of ?.P.R. Display Unit 13
rihematic Dia:;ram of the Set .18
Chapter III. Description of P.P.R. Circuit 22
Signal Se?aration Circuit 24
2lectron. Relay 24
Sweep Circuit 27
Calibration Circuit 29
Amplifier of Target :;inals 32
3igna1?Selector 31
Plan Position Repeater Tube 43
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PART II
02EW.,TING INSTRUCTIONS
Chapter IV. Switchinr, the Unit On and Off
? Preparing the Unit for Use
Page
47
47
SwitchinG Off the Plan Position
Repeater
49
Chapter V. Maintenance of 1:refmlt
50
? Tube Replacement
50
Valve Replacement
51
Chapter VI. Preventative !iaintenance of F.P.R.
52
Units
????????????????
Daily Inspection and Maintenance of the
Units
52
Weekly Inspection and Maintenance of
the Units ?5g
'Monthly Inspection and Maintenance of
the Units ###
53
Appendices
56
Corroonent Schedule ..
56
Table of Valve D.C. Characteristics..
75
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PREFACE
The Dian position repeater (Peilias) is designed for
observation of the area surrounding the set, for measure-
ments of bearing and range and for determination of
taret position data.
The P.P.R. screen, like the .-croon of the main display
unit of the warning radox, 1)rono.lts the ,icture of the
aircraft or ships in the area surrowadin!; the ship.
The description of the equipment gives an idea of
the performance and design of the P.P.R. (as a. whole and of
its individual units); it also contains diagrams and. lay-
outs which are necessary both for studying the design and
operating the equipment, as well as for its adjusting
lnd tuning. All figures in circles correspond to
reference numbers of the elements in the key diagram
and in the component schedule.
The Operating Instructions give principal information
on tuning and adjustment of the equlpment, its maintenance
and inspection.
Since.P4).R..sets supplied from the ship's D.C. or
A.C. mains are circuit-connected in the same maners
reference numbers Of Controls for a set operating
from an A.O. mains are given without brachets. *Ails ?
reference numbers of sister elements of a 1,41.R. set
operating from.a D.C. maine are given in .brackets.
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The following designations are used in the Descrip.
tion and Instructions for P.P.R. units:
MU ( BM ) Motor Unit
TU(ET) Tube Unit
RSS (BCB) PeP.R. Rectifiers and Sinal-Selector Unit
RU CZU3) P.P.R. Range Unit
CP ) P.R. Control Panel
GCR ( 3K) - Gyro Compass Repeater
Pb (3Y) - Protection Device
TDS (AY ) - Target Designation Syot?.i
aiplOodedmaieremem.embroarer
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PART I
DESCRIPTX0 N
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Chapter I
G ERAL IR FOX. ATI ON
Designation
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The plan position ra)eater (P.P.R.) is designed for
presenting the picture of the aircraft ad surface targets,
for determining the target range and bearing,. and tGrget
designation,
The P.P.R.reroduces echo signals from targets aad
local objects, coming from radar stations detecting air and
surface targets.
Component Units
???????? 110?00,11???.111M
The P.P.R. includes a foot 30ad1 switch (device go.12),
Junction box (device No.7) designed for serving fits P.P.R.aat.1
and spars parts.
The device useS monitoring and measuring instruments
,rovidod with the radar station set. ?
The P.P.R. is fed from poyiersunits of the radar sta-?
.tion through the junctioa box,
3rief Specifications
ftaimpalikemowhiftban4WW.W......marewasom
Range scales 5, 20 and 75 miles
Diameter of display tube 229 mm (9 inches)
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Scale ofbearings Fixed, graduated from
0 to 360? (the value
of one division iz 14);
the scale has mar%inEs
of the four cardinal
points (1,110,0,!).
Scale of relative bearing Hovable; stabilized
according to the
course; graduated'
from 0 to 130? for
? every side; the value
0
of one division is 1.
Range measurement Provided by movable r.tliEc
? marker; ran3e indica-
tion it provided by 5
? fixed calibration
rings
Bearing measurement Provided by bearing
cvrsor with r.calo of
relative bearing czAd
bearing,
Target range and.
bearing accuracy:
for range 2%1 of the maximum mn;:t1
in use
for boarin3 444, 10
Resolution in range 2 cables
Transmission of target
designation data:
for relative bearing
by coarse transmitting
solsyns with a turn
"1u0 01 61000 mils, cua
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for range
iaximum feeder length
Time required to start the
equipment after it has been
fully switched off
Continuous operation time
Power consumption
Overall dimensions
'!/eight
P.P.R. Design
by fine transmitting.
selsyni with a turn
value of 200 or 100 mils
by a transmitting selayn
with a turn value of 600
or 300 cables.
250 m.
1 min.
24 hours
230 W
760x570x1335
250 kg.
11M
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The plan position repeater in made as a se.tarato
spray?proof set.
The set housing, front and side covers are cast.
Its back is covered with sheet duralumin.
All princip 1 controls and regulators are on the
top cover which is at the same time the control panel. ?
In the centre of the top 'Cover there is an opening far
viewing the screen of the cathode?ray tube. The tube
screen 13 ,)rovided with?a.viowing hood for shading it La-
daylight.r.convenience in servicing the top cover is
inclined by 15?.
On the set front. there are range, bearing and
course matching handwhoels.
The front oening lid has the range selector
Itnob eonnected by a rod with the switch itself locatedin
the RD unit..
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All the elements of the system are combined into
units and placed inside the housing.
All control and adjustment devices are under?t%e
upper cover (control panel).
The set top part houses the dispiny tube unit TU
consisting of a cathode-ray tube, tyle 2311M348 focus-
sing and scanning coils, drive elements for rotatinc to .
scanninz,; coils tube frainins thermoswitch and matchin:
mechanism.
? In this part arc also placed: the nignal-selector
range potentiometer, power tranaformera for the 310
415 V D.C. rectifiers, as well as the transforme:c cf
tube heater circuit and of the sisaal-selector valve.
The -R.93 . and RU units are nr2anged in the ce:tral"
-)art of the sot.
. The MY ? unit contains the main elements of
circuits 'of signal discrimination, electron relay
relay), circuits of scanning, calibrations amplifier '11
target echoes and identification siznalss an well as th.,
first four stages of the signal-selector circuit.
-The R.S.3. unit contn.ins the rest of the
of the signal-selector circuit, ?.P.R. supply rectLrila%s
and the tube interlock circuit.
The motor unit is situated in the lower part c;:
set,
Access to the elements of Cle set is )revided
the font dear, the upper hinrJed panel and removable side
lids.
For )roviC.ing access to the iirin, the RU
units are made tilting aad slidinz;. The rnlgo
meter is accessible throu,:;h the ;'omovable cover fitsteneJ
with six screws to the celtve of n6 unit front.
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Tho elements of the synchronous coupling.system are
arranged in the MU unit, Id separated from the indica?
tion'equipmeat. Ale control handwheels and the motor
unit elements are connected with the aid of universal'
joints so that after 6awinc, out the RU and RSS units no
matching isnocessary.
povico No.7 is a cast box.
On the front covers which serves as a pnaol of the
set there are switches, pilot and ton lamps. The front
cover is hingod and can be easily swung open to Ilrovide
access to the. interior part aid to the wiring of the ?
set. On the inside of the unit bac!: side the fuses are
situated. For leading in cables the housing has eight
glands.
. The foot pedal switch (device No.12) serves to
indicate. that the P.P.R. is transmitting data to the
target designation system..
Chapter II
PRINCIPLE OF OPIMITION
Block Dia;iram of. EAP .RA Diulaz_Unit
The block diagram of the P.P.R. display unit is
shown in Piga.
Mixed trigger pulses aad target signals are applied
from the main display unit of the. radar station via the
relaying unit along the common feeder to the inputs of the
target signal amplifier and signal solmration circuit.
The circuit of the target signal am2lifier is arranged in
such away as to am lify positive and cut of negative
4.1
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pulses. The amplified target signalS and Cie ship's
signal are applied to the grid of the disp/ay.tube a.%6
appear on its screen tu the form of bright marks.
The signal separation.circuit is designed for amplify_ .
ing negative trigger pulses.
The amplified negative trigger pulses aro fed to tho
circuit of the electron relay which ov.rates from ever,
trigger pulse (427 times ?er second), each time sireducing
two pulses:
(a) a pulse of negative polarity for trivAring
sweep generator ;of the display tube, hez,enerator of savtlot:1
voltage and the generator of calibration pulses;
? (b) a pulse of positive polarity applied to the
accelerating grid of the dia:Ilay tube for intensifYing the
forward travel of the boam.
Depending on the setting of the range =itch for
5, 20 or 75 miles both. pulses comin1. from the 7:ipprelay
have a duration of 115, 350 or 1,100 miconeconds,
respectively. ?
The sweep generator of the display tuba contains
one normally open valve. When the negative pulse is .
applied from the eledtron- relay to its grid, tho valve
is Cut off and due to the presence of ca:)acitors, which
shunt the anode of the valve tc the earth, and capacitors,
switched on when the ranges are changed, the voltage on
Its anode grows ex)onentially.
The initial (almost linear)part of this growing
voltage is used for the display tube sweep and fed to the
grid of the. sweep amplifier.
The anode circuit of the :weep amplifier includes
the scanning coil of the tube. Thud, the sawtooth current
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pulses generated in the anode circuit of the swoop .
amplifier with a duration corresonding to the selected
range, cause radial deflection of the electronic 'beam
on the screen of the tube from the centre to the edge of
the screen. Since the scanning coil rotates round the
tube axis in step with the aerial of the radar station,
at every given moment the position of the sweep trace on
the tube screen corresponds to that of the aerial.in the
space.
The generator of calibration pulses and the .
subsequent stages serve. for )roducing calibration marks
on the sweep trace every 1,6 or 15 miles for the ranges
of 5,20 or 7, milesprespectively. The generator is a
normally open valve whose cathode circuit includes one of
.the impact excitation circuits ..:?roducing, when the valve
is cut off, damped oscillations with a cycle duration of
12.2, 48.8 or 183 microseconds for the raages of 5,20 or
75 milespresnectively. The purpose of the three subsequent
stages is toecarvert these damped oscillations into acute
positive peaks of 2-microsecond duration which coincide in
time with the moment at which the value of voltage in the
circuit of impact excitation becomes equal to zero. .
.The produced 2-microsecond nulses are fed to the
circuit of the mixer of calibration and strobe pulses.
2he common anode load of both valves of the mixer developst
(a) negative calib ation pulses fixed in time with
respect to the starting point;
(b) negative strob pulses with a variable timing
depending on the setting of the sicaal-selector range.
potentiometer.. ;then fed to the cathode of the display
tube they lower the potential on the cathode and bring
it closer to the potentials on the z.;rid aad accelerating
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electrode, thus increasing for a moment the brilliance of
the image on the tube screen.
Thereforera number of briht spots (tpar along
the sweep trace. When the scanning coil i3 rotating,
these snots merge into luminous concentric circles.
The fi.ed circles are the calibration 11.11:2:3 obtained owing
to the operation of the calibration generator circuit, end
aro
the two movable circles ,Jhich are close to each other,
the strobe rings. The distaace between the strobe rings
and the centre of the screen varies according to the
range setting and is achieved :ith the signal-selector
:z.anse potentiometer.
The signal-selector circuit with all au.7iliary stages
serves for producing two sinal-solector pulses which
provide coarse measurements of the target range.
The negative pulse of the electron relay cuts ofZ
the normally open valve of the sawtooth voltage generator.
Simultaneously one of the capacitors is bsiiK: cnarg-d.
This canae.tor is switc*Ied into the anoo circuit of tle
valve with .the range selector switch. The vo:.tage on the
capacitor rises exponentially with tiMe.
The initial (almost linear) 'art of this groving
voltage is supplied to the siLmal-selector stage, :here
it levels with the voltage coming from the .oteatiometer
slider.
The.voltage supplied from the potentiometer depends
on the position of its slider.
The range potentiometer feeds a voltage equal to
the voltage on the capacitor of the sawtooth voltage.
generator. At this time the normally non-conducting valve
of the signal-.selector stage onens abruptly. The signal-
selector pulse nroduced at the moment Of vaive.openin3;
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is fed via the cathode follower to tho circuit where a
nulse.of 4.6?microsecond duration is obtained. The
negative signal?selector pulse cuts off tho normally open
valve, whose anode circuit includes the ctecuit o..0 impact
excitation with a frequency of .107 106 Kc/s.
For controlling the next stage, the first poa!,tive
half?wave of tho oscillations produced by tho impact
excitation circuit is used. As to VI? first negative half:?
wave, it is extinguished owia4.; to the shuating effect of
tho operating diode. Thus, whenever the valve is cut off?
one voltage oulse of 4.6?microsecond duration is ta::en
from the circuit.
This pulse is applied to the next stago,-whose
output feeds a negative lnalso almost of the same duration
to -,)roduce strobe pulses.
This negative .7u1se of 4.6?licrosecond duration
cuts off the valve, whose anode circuit includes the
circuit of impact excitation with a froquer.cy of 323 ? ?
325 kilocycles. During 4.6 microseconds while the valve
is blanked, three half?waves of oscillation are developed
in the circuit, of which two are positive and one ?.negative.
'Alen the 4.6?microsecond pulse is no longer applied,
further oscillations in the circuit stop duo to the shunting
effect of the open valve. The VNO positive half?waves are.
applied-to the grid of tho cathode follower and from its
cntaode resistor they are fed to tha Mixer circuit.
Thus in every cycle tho circuit of strobe pulses
1.1erates.two positive pulses velich, Yin the mixer, are
fed to the cathode of the display tube. The goneration of
tleoe pulses is strictly timed with that of the signal?
selector pulse. Therefore, when the whole circu.I.t of the
set is operating, those pulesIroduce two strobe rings.,
whose position isinvariable with respect to oath. other
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but can be varied with respect to the centre of the
tube screen by turning the knob of the signal-selecter
range potentiometer.
When the strobe rings on the.tebe screen coincide
with the target echo so that the latter alyears between
the rings, the target ran3e is read OA the scalee
connected with the range handwheel. :Ance the sweep t'ne.
becomes longer as the range Lyows, the .strobe pulc;c7s
practically merge into ono, when the sat operates at
the 75-mile range.,
Kinematic Diaf;ram of the Set
-
The kinematic diagram of the P.P.R. is
ehown in
50X1
Figa.
It was already mentioned in the description of t.:el
P.P.R. display unit block diagram that, when the operat
turns the range handwheol, the latter drives, through a
mechanical gear, the slider of the range potentiometer,
and. the markers of measuring strobe pulses travel along
the sweep trace of the indicator screen..
Besides the range .eotentiometer slider this Ilandwee:
Is connected, through a mechanical gearowith two range
computers and transmitting Boleyn 203.
The gears are selected in such a way ? that, when
the strobe pulses are beought in line with the target, axe
of theeemeuters shows range in hectometers an0 the other
in navigation cables. Simultaneously the transmitting
eelsyn 203 is triggeredf which transmits the range valee
In artillery cables to the tarcet designation receiving
selsyn.
The system is lrovided with a mechanical stop which
prevents continuous rotation of the range handwheOl in the ?
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same direction, thus protecting to range )otentiometer
from damage.
The mechanical stop ma%es it possible to turn the
handwhoel within the limits of from 0 to 750 artillery
cables.
The arrangement of the systeu provides for two speeds
of rotation of the handwheel vita a turn value of 10 or 40
cables.
The scales arrenged conceatrically as regards the
P.13.11, tube screen make it 1.)ossible to ta7o readings of
the ship's own course, target bearin,7,.and relative bearing.
The target bearing is read off the fixed scale
provided With 14,31B,W markings, as an angle between the
N-marking on the fixed scale and the cursor which 01.12 be
turned to coincide with the target image on the tube
screen. The target relative bearing is read off the movable
scale, as an angle between the zero-marking of the'movabls
scale and the cursor.. The angle between the N-marking of
the fixed scale and the v,ero?-marking of the movable scale
corresponds to the ship's own course.
Selsyn 196 which receives course data operates from,
the transmitting aelsyn which han a tura value of 10 and is
situated in the. main display unit of the radar station,
his transmitting selsyn is started by the course reloater
located in the radar station aid controlled by the .
synchronous follow-up system receiving signals from the
device 3X which is the ship's gyre compass. repeater.
From .receiving selsyn 196 course data aro convoyed to tha ?
extreme Part of mechanical differential II. From the middle
part' oithis differential the course data are. applied
threush'amechanical 'gearing system to the inner movable '
scalcvoi the.' set.'
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20?
The course . matching is done with
the aid of a matching haudwheol. Tho
data obtained by rotating the course matching handwhael are
supplied to the second extreme part of difforential
from whose middle part they are sent for rotating the
movable scale of the tube until the ship's head mar:Or
engraved on the movable scale coincides with the shipli
head signal on the tube screen.
Tho course data from difZerential II art also sent to
the extreme part of diYforontial I.
With the did of the bearing handwheol the cursor 4::
rotated till it coincides with?the target mark.
Simultaneously the target 'Jeal'ing data are applied to t,u
second extreme ?art of diffemitial I. On .thia.dif2e::e. t;1
the ship's course data are algebraically added up to t'x '
target bearing data as a result of which the target
relative bearing is obtained in the middle part of the
differential.
Ap?lied.from the Middle ?art of the di:ferential t
relative bearing data start the coarse transmitting
selsyn 202 with a turn valve of 6,000 mils ana the
transmitting selsyn 204 with a turn value of 200 or w.la;
both solsyns are synchronously couled with the target
designation receiving selsyn. The coarse and fine scn1Qs c)
reMtive 1:ear.L,1,:; rotate in ste-i with the _rotor axles of
'A
trasmittian selsyn,
:31,ilt in the bearing handwheel is a light signal push-
button contactor indicating that target designation data
are tratimittA.
Receiving selsyn 195, with a turn value of 300 mils,
rotates the tube scaaning coil in synchronism with the
.transmiiting eeleyn situated in the main display unit of
the radar station. The rotor of the transmitting selsyn
rotr.too in oto? :3,th the aerial 0-2 the radar station.
50X1
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For more accurate transmission of tho tracking angle
to the F.P.R. the turn v.-lue of tho above-mentioned
transmitting selsyn and of the corresponding receivi_1;:
selsyn is 20 times lower than that of the scanning coil.
Due to this P.P.R. tube scenning coil rotates in phase
with the scanning coil of P.P.I. and, hence, with the
aerial of the radar otation. The key diagram showing the
cophasal rotation of the P.P.R. scanning coil and of tho
scanning coil of the main set is given in Fig.).
Disc ..has a turn value of 6,000 mils.
Through a step"-up gear the trap.smitting seloyn of tha main
set is rotated with a turn value of 300 mils and it causes
tho P.P.R. receiving selsyll to rotate with the same turn
value. This rotation is imparted to the F.2.R. scanning
coil. Since the scanning coil of the P.P.R. 2=34
tube should rotate synchronously with the P.P,X. scaaning
coil the rotation transmitted from.the receiving selsyn
is stopped. down 20..fold by a reduction gear. Therofore,
'disc B coupled to tho scanning coil uf the P.P.R. tube
rotates syAchronously with disc A of tho P.2.I.
For the purpose of co-dkanal o.)eration discs and B:
have cams which servo 'for closing the contacts. The cam
of disc B closes the cirquit of relay R.
When the scanning coils of the. main display unit and
of the P.P.R. rotate in phase, tho cam of disc B closes
the contacts at the same time an the disc A cam opens the
contacts. Thus relay R remains do-energized and the
selsyns - electrically connected with each other.
. Let. us adsume that the display unit scanning coils
andi hence, discs A.and B do not rotate in phase. In this
case when tho rotor of the transmAting solsyn turns, the
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rotor of the receiving selsyn will turn too until the
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cam of disc B closes the relay circuit. Relay R will
operate and throw its contacts. in a position which will
cause the rotor of the receiving selsyn to stop. Tho rot -a,
of the transmitting selsyn, still turning, will rotate
disc A.
When the cam of disc A opens the contacts, srelay
will be de-energized, and release its contacts and conaect
the phase windings of the receiving solsyn to those, of the
transmitting.solsyn. Further rotation of the scanning
coils will be cophasal.
Chapter Ili
DESCRIPTION OF P.P.R. ciacun
The following voltages are supplied through .the con
feeder to the plan position repeater from device No.13:
- trigger pulses of negative polarity of lamicroseco:d
duration with an amplitude of about 1 Y and repetition
frequency of 427 pulses per sec.;
- target signals of )ositive polarity of 1-amicrosec%nt,
duration with an amplitude of 1 V and- rei)otition freest:eAcy
of 427 pulses per 30C? (from each reflectia,j object).
In addition to this, whenever the microcontaet
located in tho radar .station device I:o.1 is cloSed,
voltage of the "shipis head" marker is applied from the
.evice .i0.7 to tho P.P.R.
In detection operation i.e. during continuous
automatic rotation of the station aerial tho true picture
of the reflecting objects in the area surrounding the
station should be -2re5eted on the tube screen on a
corresponding scale.. .
This is achieved by:
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- continuous rotation of the .1canning coil in the
plan positionropeater in step and in phase with the
rotation of the station!s aerial;
- application to the P.P.R. of trigger.pulsos which
determine the beginning of radial sweep for ever' pulse
emission;
- application to the grid of the cathode-ray tuba
of the amplified target and identification signals and
of the ships head signal.
As a result a real map of the reflecting .objects is
shown on the P.P.R. tube screen.
Coarse measureuent of the rano to any of the
objects visible on the screen of the plan position
repeater is ensured by:
- five fixed calibration rings on the tube screen,
placed concentrically with resect to the centre of the
screen and corresponding to the distaaces of 114 or
15 miles for the ranges of 5, 20 or 75 milesorespectively;
- two movable strobe rings whose distance from the
screen centre is varied by the signal-selector range
potentiometer.
. The range measureuent is achieved by bringing the .
strobe rings in liae with the target echo and ading data Of:
the scales, connected with the slider of the range
potentiometer. In the ranges of 5 and 20 miles both.stro'oe
rings are situated at such a distance that the target
eche can be sot between them. In the 75-mile range both
strobe rings practically merge into one which is atched
with the target echo.
Coarse measureaoat of target bearing is carried out.
with the aid of the bearing cursor which is turned by means
of the MATING (11E31EIIII handwhool till it is matched with
the centre of the.targot echo.
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The results of those measurements can be read off -
the bearing and range scales and also automatically .
transmitted to the target designation system. A detailed
description of the operation of all I.:ill. circuits is
siven,below.
Signal .Separation Circuit
.1?1100.001???????? sob ??????????.././.01n ?????????1?I1
The signal separation circuit employs two valves 161
and 149 of the en tY)0 (Fig.4) culd serves for soparat
ins the trigger pulse from target signals.
The positive pulses of stnrget siL;nals and the trigger
pulses of negative polarity coming from the device
throusli a long feeder (up to 250 m.) are applied to the
control grid of valve 161. This valve olJorates am a
class A amplifier and oorves as a buffer that prevento
connection between the electron relay and the signal
amplifier Input. At the anode load of valve 151 amillified
trigger puloes of positive polarity and negative -oulses
of target signals are formed.
The second Valve (149) of the separation circuit is
blanked by the control grid with the voltago.formed on
resistor 153 in the cathode eire.lit of this valve. A3 a
result the negativapulsos.of target signals aro cut
off, whereas :the trigger pulses produce across the anode
load of this valve voltage pulses of negative polarity
with a large amplitude (co - 100 V), From the anode of
valve 149 the trigger pulses via capacitor 2 are fed
to the grid of valve 10 in the electronic relay circuit.
,Blectron Relay
The electron- relay haS two valves 10 and 14 of
the 6C50 type and servo for ..)rodueing trir.er pulses
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au rule1611 .u.Lbocm
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for the plan position repeater circuits. Tien no trig:;er
pulse is applied the first valve (3n) of the electroa
relay is conductive. To second v lye (14) is blanized
because:of the negative bias voltale applied between its
cathode and the control E..rid. This bias is controlled wtth
the aid Of potentiometer 45.
Men the trigger pulse is applied to the grid of the
first valve of the electron relay, the valve becomes
non-conducting and its aaodu voltage increases. Since the
grid of the second valve of the electron relay is
connected 7ia resistor 12 with the anode of the first valve,
the voltage on the grid of the second valve also sharply
increases. The second !alve opens, and its anode velta;;e
dro?s. since by the moment the trigger pulse 13 Applied
to the grid of valve 10 capacitor 7 is charged to the full
value of anode. voltage, it begins to discharL;e through
the second valve of the electron relay and through one
of the arid resistors of the first valve (depending on
-position of range switch 6a). For the flrst range (5 miles)
it discharges through valve 14 and resistor 3. Thud, the
discharge current of capacitor 7 creates on the grid of
the first valve of the electron relay a negative voltage
which decreases according to the exponential law. This
voltage keeps valve 10 cut off.
is the ta,)acitor discharges, the first valve of the ?
electron relay begins to open, its anode voltage'
decreases, thereby lowering the voltage on the grid of the
second valve. the second valve begins to get blanked, its ,
anode voltage increases, and capacitor 7-begins to charge .
through.resistors 13,and 3.
The charging current .of ca)Aci.tors 7 develops a
positive bias on the grid of the first valve, thus facilitat,
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e
ing the return of the electron relay circuit to its
initial position. When capacitor 7 is charged, th relay
will return to the initial position and.will again be
ready to operate from the next trigger pulse. The opera.
tion period of tho electron relay is determined, by the
repetition frequency of trigger pulses which is equal
to 427 poleee per sec., while the duration of pulse?
produced by the electron relay is determined by the
time constant of the discharge circuit consisting of
capacitor 7, resistor of valve 14, resistors 43 -? 49 and
one of resistors 3,4 or 5 de,lending on the position
of the range switch.
Depending on the range - 5,20 or 75 miles, sot with
the aid of range switch 6a, the duration of the pulses
produced by the electron relay equal to 115, 350
or 1,100 microsecondstrespectively.
Besides the control grid of the electron relay
second valve, the positive pulse formed on the anode of
valve 10 is also fed to the second grid of the cathode
ray tube, thus providing the intensification for the
forward travel of the beam.
The negative pulses formed on the anode of tho .
second valve of the electron, relay are used for t11.-
Inc the sweep generator of the P.P.R. tube, the circpit
for producing calibration pulses, and tho sawtooth voltage .
goaerator.
By reducing the bias voltage on the grid of valve 14
self...triggering 0,1erat1on of tho electron relay can be
Obtained, i.e. its operation without a trier pulse. This ?
proceeds as follows: when the bias voltnze on the grid of
valve .14 is diminished with potentiometer 45, valve 14
bogins to open and, hence, capacitor 7 bez;ins to dischnvi;e,
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56(1
which increases the negative voltage on the grid or
valve 10 and the voltage on its anodel,which, in its
turn, increases the current in valve 14. This increase of
the current is of avalanche type and valve 10 is cut off.
From this moment on the operation of the electron relay
will be the same as described above with the trigger
pulse applied, but the operation pe!'iod of the electron
relay will now be determined by the Sum of time constants
of charging and dischargiag circuits of capacitor 74.
The self?triggering operation of the electron
relay is sometimes used whencheekingy.P.R. display unit
circuit in the absence of a trigger pulse, but the
electron . relay self?triggering operation is not
permissible when determining the target range under real
conditions.
Sweep Circuit
41*M.1641000.0MOMINIIN.M.
The sweep circuit is formed by the sweep generator
employing valve 21 of the SCC typo And the sweep voltage
amplifier employing valve 37 of the on type; it
serves for producing sawtooth voltnge to scan the beam of
the indicator tube.
Sweep generator 21 is triggered by the negative
square pulse coming from the electron relay via ca?acit+
or. 16 to the valve grid. In the absence of this pulse
the valve of sweep generator is completely open.' .1.hen the
negative pulse is applied to the grid of valve 21, the
latter is instantly cut off and from this moment on the
charging of one Oi Capacitors 29, 31 or 33 begins,
depending on the Sition of the range swtch,' In the
course of charging, the voltage on the capacitor varies
according to the exponential law. Ilhen the negative pulse
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28
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from the electron relay is no longer appliedothe valve
of the sweep generator becomes conducting and capacitor
29, 31 or 3) previously charged instantly discharges
through valve 21.
The time constant of the capacitor charging circuit
is selected in such a way as to 1130 for operation only.
the initial, the most linear section of the ex?onontial
curve that characterizes the law et voltage increase on
the capacitor.
? Valve 37 of the sweep voltage amplifier is noroally
cut off by the voltage on resistor -36. Its anode circuit
Is connected to scanning coil 112. Tho control grid of
valve 37 receives from the sweep generator -a positive .
pulse of sawtooth voltage and from the anode of valve 65 -
a positive square pulse producing the pedestal for the
sawtooth voltage pulse. In the anode circuit of this ?
valve and, hence, in the scanning coil sawtooth curreat
flows. The magnetic field of coil 112 causes radial
deflection of the electronic beam from the centre to no
edge of the display tube screen.
? \
The scanning velocity of the tube beam is varied in
accordance with the variation of the range with the aid
of switch 6b and is determined by the capacity of anc ov
the capacitors 29, 31 or 33.
? The sweep length on the tube screen to varied with
potentiometer 39 situated on the control panel and .
switched into the cathode circuit of valve 37 to vary
the value of bias voltage and, hone.), the value of
sawtooth currant in the scanning cull.
? .Dotweea chos:e'35 and the slider of switch 6b
potentiometer 34. is included which is situated on the
control panel and designed for varying the potential
on the anode of valve 37 and, consequently, the Volta50
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on resistor 41 by which it is possible to exactly match
the beginning of the sweep trace with the centre of the
tube screen. To ensure necessary shift Of the beginning
of the sweep trace with respect to the centre of the
screen, resistor 23 or 24, depending on the range sot,
is connected in series with choke 35 by moans of
switch 6b. Choke 35 is necessary to preclude the effect
of the alternating load, due to potentiometer 34, on
the operation of the tube's scanning coil circuit.
Calibration Circuit
0114111.1.0.1.0..111.M.MAIWINP*4=4,01.10mMONIft
The calibration circuit consists of the generator
of calibration pulses (valve 65 of the 6C5C typo), the
amplifier employing a 6C5C type valve 78, the limiter
and the amplifier (6C,C type valve 8)), the pulse forming
stage (6C5C type valve 87), the mixer (6119 type valves 95
and 99).
The calibration circuit serves for producing
calibration pulses wiich are .fed to the cathode of the
display tube and produce range marks on the sweep trace.
The spaces between the range marks correspond to the
ranges of 1,4 or 15 miles depending on the position of
the range switch for 5, 20 or 75 milesorespectively.
When the scanning coil and consequontly,the
sweep trace rotate, the range marks merge Into Concentrie
circles, called calibration rinas which maL:o it :)ossible
to determine the approximate target range on the scree
of the display tube.
Valve 65 of the calibration pulse generator.
normally 'operates with a low anode current, whose value
determines the energr accumulated in the electromagnetie
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field of the coil in the impact excitation circuit placed
in the cathode circuit of the valve. The negative square
pulse coming from valve 14 of no electron relay cuts off
valve .65 thus stopping its anode current. This gives riss
to damped oscillations In the impact excitation circuit
which are sent to the grid of valve 78.
Simultaneously, a positive pulde is supplied from
the anode of valve 65 to the cathode of valve 37 via
capacitor 27 or 28. Its duration is the same as that of
the electron. . relay pulse which together with the
sawtooth voltage affects the current of valve 37.
Depending on the range selected, the first, second
or third impact excitation circuit is switched on in the
cathode circuit of valve 65. The oscillation frequency of
each circuit is determined by its parameters. Fine tuning
of the circuit is achieved by varying the self-induction'
value of the coil with the aid of carbonyl cores.
Valve 78 serves for amplifying the oscillations of
the generator of calibration pulses. The oscillations
produced in the iluact excitation circuit are fod via
series resistor 76 to the grid.of valve 78. Due to the grid
current flowing in the grid circuit of this valve the
tops of the positive half-cycles of the nscillations are
clipped. As a result, in 'the .-ode circuit of amplifier
valve 78 there appears c numbu: of flat negative pulses a:td
positive voltage half-waves. The' calibration rings are
removed from the tube screen with switch 101, which is
arranged on the control panel and shorts the grid of
valve 78 to the housing of the unit (earth).
-Valve 83 servos as a limiter and an amplifier of
the calibration pulses. Normally this valve is blanked. The
oscillations coming. from the anode of valve 78 open by
their positive half-eyeles valve 8) and, as 4t result, a
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number of negative Square pulses of the same amp1itudFX1
appear in its anode circuit. These pulses are fed to the
grid of the forming circuit valve 87..
A .positive bias voltage is applied to the grid
of valve 87; the anode load of this valve consists of low
inductance coil 86 and resistor 85 connected in parallel..
. The negative pulses coming to the grid of this
valve cause variations in the anode current, thus setting
up the counter?electromotive force in oelf?inductance
coil 86.
Positive and negative pulses of sizall amplitude ahd
dura ion are formed in the ano0o load of valve 87. These .
pulses coincide in time respectivelr with the _leading and
trailing edges of the square pulses and are fed to the
grid of mixer valve 95.
The mixer employs two valves 95 and 99 operating
with a common anode load. Both valves have the samq
operating conditions and serve to mix two negative ;pulse
voltages: the voltage of calibration pulses and that of
sl.gnal?selector pulses.
Valve 95 is normally blanked; therefore, the negative
pulses coming to its grid do not affect the current of
the valve. The positive pulses open the valve, and
large?amplitude acute negative pulses are obtained in
its anode circuit. The anode load of valve 95 is made up ?
by.potentiometer 93 which is located on the control panel
aad Serves for controlling the amplitude of the calibra".
tion pulses, From this potentiometer the calibration
pulses of required amplitude are Zed to the cathode. of
display tube 110. Depending on the range set, one of the
resistors 91 or 92 is switched. into the anode circuit of
.valve 95 with switch 6e. The calibration pulses lower the
tube cathode potential, thus brightening the section of
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the sweep trace corresponding in time to the moment 01
applying the calibration pulse to the cathode. As a re:wit,
a number of bright spots appear along the sweep trace on
the tube screen. When the scanning coil is rotating, these
spots form concentric circles: calibration. rings.
Valve 99 is also normally blanked. Its control
grid receives positive pulses from the signal-selector
circuit. In the anode load (common with valve 95) neative
pulses are formed which coming to the cathode of tube 110,
produce on the sweep trace two additional bright spots, the
distance between them corresponding to 2.3 cables.
The cathode circuit of valve 99 includes potentio-
meter 25 which is used to control the amplitude of the
strobe pulses. Potentiometer 93 situated on the control
panel controls the amplitudes of both the calibration and
strobe pulses. The range of control ensured by potentio-
meters 25 and 93 is such that it permits to control
maximum and minimum brightness of the calibration and
strobe rings on the tube screen.
Amplifier of Target Signals
The amplifier of target signals contains two
valves 124 of 6414 type and 133 6119 type and is
?designed for amplifying target signals coming to the
amplifier input.. In additio:1 to this, valve 133 is used
for producing the ship Is head. marker voltage.
Valve 124 of the amplifier is normally blanked by
the bias voltage an,.)lied to the grid of the valve from the
potential . divider consisting of resistors 138 and 1)9.
The grid of. valve 124 receives by the common ? cable from
the relaying unit of the radar station, to which the ?.ft.
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is connected, the target signals of positive polarity
and the trigger pulse of negative polarity. Since
valve 124 is blanked the trigger pulse does not
affect the anode current of the valve.
The target signals of positive polarity are
amplified and then applied from the amplifier input (in
the form of positive pulses) to the tube z;rid of the plan
position repeater, causing a bright spot to appear on
its screen.
The target signals follow each other with an
interval which can be controlled within L. ? 5 micro?
eeconda in tho trigger circuit of the radar station
transmitter. The target signal has a duration, of
1 micvosecond.
The ship's head signal is formed as a .result of a
momentary application of negative bias voltage to the
:,;rid of valve 133 when the microcontact connected to the
aerial of the radar station is closed. If switch 269 on .
the P.P.R. control board is in the OA position the. blanking
voltage is applied to resistor 137 and then to the grid
of valve 133.
When the negative bias is applied, a positive puloe
is formed in the anode load of valve 133 and a?bright
line showing the direction of the ship's head appears ell
the tube screen.
The shipis head marker voltage together with the
amplified target signals is impressed on the ::;rid of the
plan position repeater tube.
Self?inductance coil 135 servos for correcting the
shape of the pulp') in the amplifier output.. ?
3igna1?SolectoL
The signal-selector circuit consists of a sawtooth .
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voltago generator, a rango potentiometer aid a cathodo5?X1
follower of the potentiomotor voltage, a signal-
soloctor stage, a cathode 'follower of signal-aeleCtor
pulses, a circuit for producinr; nulnos of 4.6-microaetond
'duration and a circuit for producing to strobe pulses,
:The eignal:rsolector circuit is divided into three
parts arranged in different units. Valves 171,179,190
are in the MI' Unit. The signal-selector range poteatio-
motor is installed in the upper part of the equipment.
Valves 217, 232, 240 and 254 are placed in the 20!;
unit.
The signal-selector serves for producing strobe
pulmoo which, coming to the cathode of the 'tubo,.
produce two bright npote on the sweep trace at a
distance corresponding to the actual range of 2.5 ca)les.
In the. 75-mile range the two spots practically merge into
one. These marks can travel along the whole length of
tho owoop trace. When the acanalng coil is rotating,
those marks form strob0 rine which provide coarso
range neasum3ont on the 'plan position ropoator in all
three raogon.
Tho sawtooth voltage, gone-
ra tor sorvos for croating sawtooth voltago supplied
to the input of the signal-seloctor stage.
.The generator omploye a portion (171 b) of 6N0C
typo valvo 171.
:Tho ,;rid of the sawtooth voltage generator valve
recolves from t4o anode of the electron- rcilay valve 14
the nerative pulse which cuts off the normally openvo .
171b, At the same timo ono of the ca)acitors 1L2,
104. or. 1.:6 starts charging. through resistor 170 and
throur.:,h resistOr 331, 330 or 329 de?ending on the
rosyntivo rang? set. with switCh 6f. ?
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When the electron relay pulse ceases to be
effective, the valve of the sweep generator becomes
conducting and capacitor 182, 184 or 186 previously
charged instantly discharges through the valve.
The voltage on the capacitor,depending on time,.
varies exponentially. The time constant of each charg-
ing circuit is selected so as to use for operation only
the initial, the most linear portion of the
exponential curve that characterizes the law of
capacitor voltage rise.
From the slider of switch 61 the voltage is
supplied via resistor 180 to the signal-selector stage..
The range potentiometer*
is designed for delivering to the signal-solector stage
a D.C. voltage, whose value is regulated by the
position of the potentiometer slider. Due to the
mechanical coupling between the potentiometer slider, the
range handwheel and range scales, the value of this
voltage always corresponds to a definite range indicated
by. the scales.. .
When measuring the range with the signal-selector
the voltage on the potentiometer slider mvst.be sot at a
value corresponding to the value of t.lo sawtooth voltage .
at the moment when the target sign.' arrivon.
When the two voltages level with each other at the
name moment as the target nignal mark appeara on the
. ,
display screen, the/actual iange is rad off the scale.
This is how it works. rAnce the momont'Wnon the ca?acitor
of the sawtooth voltage generator ntart n charging is. -
synchronized with the trigger :wise of the electron
relay and, consequently, with thu mcment when a high-i.
frequency pulse is radiated by the main sot's aerial, the
Foreign Dissem
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? time interval between the moment when the capacitor
.begins to charge, and the moment, when tho target signal
mark appears on the display screen, corresponds to the
target range.
When turning the range potentisZtele:lorill::r4:1 to,
voltage fed to the signal-selector
' the voltage accumulated in the capacitor by the moment
the target echo appears on the screen, the mark will be
betveen the strobe kings and, therefore, the target range.
'reading can be taken off the scales connected to the
. potentiometer slider.
? . To make the unit more reliable in operation. and
simpler in manufacture the plan position repeate has a
contact (decade) potentiometer with exponential winding
which pr vides sufficiently smooth adjustment Of
resistance and, hences of voltage.
The range potentiometer has 25 "coarse" Coils
connected in series and consisting of 50 sections of
equal resistance, and 25 series?connected "fine" coils
which also consist of 50 sections of equal resistance. ?
Aen the range handwheel is turned, the commutation deuce
'permits all the 25 fine coils to be parallel?connecteJ .
? with one of the coarse coil sections in succession without
breaking the circuit. These connections take place at
? intervals reql;ired by the poteAtiometer slider, from which
the potential (in relation to the beginning of the coarse,
coil circuit) is talcen, to run over all the. fine coil -
sections in succession. followinc the .3otontial increase.
.Klnematitally each successive connection of the fine
? coils 'to a coarse coil section takes place at c;yer7.130?,,
? turn of the ?otentiometer slider.
Thus,. not continuous, but "atop?like' potential
W4UO3) up to 2,500 values in all, aro.taJzen from the
No Foreign Dissem
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potentiometer during one run over all the coarse coils.
Due to this the voltage. taken from the potentiometer
varies smoothly depending on the position of the range
handwheel.
The potentiometer operates as follows.
At the beginning of the ope:ation slider I (Fig.5)
ip on the input lamella, slider II ? on the first lamella
And slider III ? on the ero la:4ella.' The simplified
)otentiometer diagram which corros2onds to ouch position
of the sliders is shown in Fig.6 (a), and the equivalent
diagram ? in Fig.6 (b). For the pur)ose of simplifica?
tion the figures show 5 coarse and 5 fiao coils..
.The potentiometer output voltage (slider III) in this
case is equal to zero. At the same time the voltage at
the ends of the sories?connectod fine coil circuit is
equal to the voltage in the middle of tho first coarse
Men the range handwIleel is turned, slider III makes
half a turn moving from the 1st to the 48th lamella, thus
contacting in turn 24 fine coils.
?After slider III reaches the 48th lamella, the
mIchaniem moving sliders I and II is sot in motion. Slider I
first moves to the idle lamella, thus disconnecting the
beginning of the fine coil circuit from the potentiometer
iaput, and slider III moves to the 4.9th lamella, leaving
only one half of the fine coil switched on.
? The simplified and equivalent potentiometer diagrams,
which correspond to this position of the sliders, are
.-hown in Figs 6 (c) and 6 (d).
Moving further, Slider III will reach the 50th
lamollat.thus switching off the remaining half of the fine.
coil,. while slider .1 will contact the socond lamella, thus
connecting the beginning of the fine col./ circuit to the
.1
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beginning of the second coarse coil. All this time slider II
slides along the first lamella, without breaking the
circuit.
The simplified and equivalent potentiometer diagrams,
which correspond to this t)osition of the.sliders, aro shown.
in Figs 6 (e) and 6 (f).
Thus, the potentiometer output voltaae grows in
steps from zero to a value equal to that in the middle of
the first coarse coil.
Since each fine coil is connected to three lamellas,
i.e. divided into two sections, the output veltaf;e, after
one half?turn of slider III will have 50 stops.
When Glider I passes from one lamella to another,
slider II does net break the contact; the resistance of
the series?connected fine coils up to the point where
slider III is switched on is such greater than the
resistance of one half of the coarse coil added to the
resistance first of one fine coil and then of its half,.
Due to all this the voltage tal:en from slider III will
.rise continuously (stop?like) without brea'iinz.
Further circuit operation is aaalor;Ous to that
deecribed. During the next half?tura slider III moves
from the 51st to the 98th lamella. .tt to moment t?Acin
slider III reaches the 90th lamella, the mechanism movin3
sliders I and /I operates again.
The simplified and equivalent dialorams for this
position of the sliders Are shown in :is 6 (z) and 6 (h).
'1ton:slider III passes to the 99th lamella, slider will
disconnect the end of the fine coil circuit from the
coarse coil circuit /Pi. 5(1) and 6 (j)/,.and when
slider III roaches the zero lamella,- slider II will contact
the third lamella and connect tho And of the fine coil
No Foreign Dissem
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? 39
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circuit to the middle of the second eoarse coil
/Pigs 6 00 and 6 (1)/.
During the second half?turn of slider III the
potentiometer output voltage grows continuously (in
steps) from the value of the voltage in the middle of
the first coarse coil,. to a value equal to the voltage
In the entire coarse Coil.
Due to appropriate selection of the resistance
values in the coarse toils, t.e potentiometer output
voltage varies exponentially. .
As was already Mentioned above, When the potentio?
meter axle and, hence, the axle of slider III turn by 1800,
sliders I and II jointly move to. the net lamella.
.They are driven by a inethaniam whose kinematic diagram
is shown in Fig. 7.
Tho sten?by?step mechanism consists of two discs
with projections coupled together, and two Naltese crosnes
fixed on the same axle.
At every half?turn the discs with the aid of the
projections alternately turn the iialtese crosses they are
connected with. At th'e same time. the :;eartplaced on the
same axle with the cressespturns and no does another gaar
connected with it caviling sliders I and I/ to rotnto.
Potentiometers 197 and 193 (Fig.4) servo for select
ins the initial voltapo on tho t;rid of valve 190 vi:vIn the.
range potentiometer i!!; in the zero position, while
potentiometer 210 series. for selecting the Tr.ximum voltar:e
? tcOton from the range 'potentiometer.
The voltage from the slider of the :maga potontio?
lieter is aT)lied via resistor 214 to the control grid of
cathode follower 6744 .va1ve'190. Resistor 214 serves for
reducing the influence of sharp vaviations in the IT.IL:1)
?otentiometer resistance on the valve 190 grid circuit
during commutation of the fine coils.'
p-E-C-R-E-T.
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From the cathode follower output the voltage is fed
to the cathode of valve 179 belonging to the signal?
selector stage.
.The aignal ?aelector stage
is designed for producing the si:/ial?selector.pulse.
The stage employs 61A valve 172. The operation of the
signal-selector stage is based on contrasting two voltages:.
D.C. voltage, which comes from tho range potentiometer via
the cathode follower and A.C. voltaf:e which is supplied 1
from the sawtooth voltage generator output.
When both voltages are equal, the signal selector
pulse is formed at the stage out.:)ut.
The stage includes G74 valve 179 which is blanked
by a positive potential fed to its cathode..
When the electron relay operates,. the potential of
the controlgrid of valve 179 begins to grow because of
an increased charge in one of zal)aeitors IC2, 184 .or 18'
belonging to the sawtooth voltage goaorator. '!hen the
value of this voltage ap7roximatos tho value of the
positive voltage taken from the maga potentiometer to the ?
cathode of valve 179, :the latter opens nad n aeg4tiVO
voltage pulse is created across its mlodo load 173.
The time of tho beginning of this pulse will de.dond
on the value of tho positive 7otoatial on tho cathode of
valve 179.
The signal..aelector pulno formed in the anode
circuit of valve 179.1s fed to the control ;;rid of the
cathode follower valve.
The resistors and Capacitors 9.91 and 181,. 930 And
183, 329 and 187 serve, depending on the range selected,
for more precise matching of tho initial sawtooth
section with the voltage coming from the range potentio?
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no roreign Lubbem
meter. Potentiometer 347 serves for the initial adjustment
%of the signal-selector pulse Who . valves 179 and 190
are replaced.
The cathode follower of
eignal Selector pulses is
designed for delivering the signal-selector 2u1se to the
ICS circuit which produces the pulse of 4.6-micro3econd
duration.
Zhe 'orosence of the cathode follower precludes any
influence of the dietributed cafacitances of the feeders
which carries the signal-selector pulse from RU to the ?
ESS units on the Steepness of the pulse leading edge.
The cathode follower employs one portion (171a) of 61I0C
valve 171. The signal-selector pulse formed across the
cathode load of the cathode follower .valve consisting of
ronisora 147 and 128 is passed via capacitor 144 and the
feeder to the Ass . circuit where the 4.6-microsocond
pulse is produced.
The circuit for producing
the pulse of 4.6-microsecond
duration is desivaed for galerating rnd forming
the pulse of 4.6-microsecond duratio- which appears
simultaneously with the begimling .of thc: pule() coming from
the cathode follower of the signal-selector stage. This
circuit employs valves 2171 2.40 of the tIn type and
valve 232 of the 6X6C typw.
. The anode circuit of the normally open valve 217
includes an impact excitation oscillatory circuit which
consists of eelf*inductance coil 223
50X1
and capacitors 224
and 225. The negative pulse of tho aitpaselcictor
applied.to the grid of valve 217 cute the latter off..
Due to the eleetromaipotie energy accumulated in the.
No Foreign Dissem
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50X1
42
magnetic field of coil 223 oscillations with a frequency
of 107. Ws arise in the impact excitation circuit.
First positive halb-cytle of the 4,6..eicresecond
oscillations opens valve 240 which in the absence of this
2u1se is cut off by the control grid due to the voltage
k3rep across resistor 244. At the Same MVO a 4.6-olcrosssoad
negative voltage pulso is created on the anode of valve 240,
This pulse is impressed on the grid of valve 234.
The negative half-cycle of oscillations in the iml,act
excitation circuit is damped due to the shunting effect
of diode 232.
Thus, each time valve 217 is blanked only on pulse
with the duration equal to the half-cycle of the circ'Ut
oscillations is taken froo the impact excitation c..rcl.t,
The circuit for prcducinf;
the strobe pulses is designed t: r
two positive pulses each time it operates and to fe...-A
them to the grid of valve 99 in the mixer of
and strobe julses. 3ince
appear is timed with the
2u1se is produced, these
system is in operation,
screen two strobe riks,
the cetrn the screen
tIle moment when the vtrcle 1.;.
moment 1Len the signal-se] .c*-:
7.1u1ses, en the eltire .
nroJuce o.1 the elis:qa:i
whose position with res. act
can be varied by turuinr; tho
signal-selector T,otei.tiometor knob.
Yhe circuit 37,,,',.)ys 5W1C valve 254. The neratIve
uulne coming from tho anode of valve 240 blanks Lie
ha portion portion of valve Z. The oscillations al-1st-.
in this case in tho tact orc:tation circuit fisod 7
self-inductance coil Z52 and capacitor 253 are t3
the grii of the r'r.h.t-i ..untioa of Y4tilf! 254 ;:cr)1.::.
a cat.l.ole rollowor.
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Tho frequency of free oacillationa in this circuit
is throe timos greater than in the anode circuit of ?
valve 217. Therofore, while the left half of.the valve 254
is blanked (4.6 microseconds),throo half-cyclos of
oscillation's occur in the circuit, two .00sitivo and one
.0t;atiV3* When the effect of.tho 4.5-microsecond pulse
coasos further oscillations in the Circuit ceaso too, due
to the shunting effect of the open left-hand portion.of
valve 254.
The positive half-cycles of voltage oscillations
are improosod on the (;rid of t.o blan!ced right-hand
)ortion of valve 24, o?en it and ,)roduce strobe pulses in
the cathode rosiutor 250.
The time interval botwoon tho amplitude values of
these pulsos corrosoonda to the 6intanco of 2.5 cablos.
The controlled feedbaok between the cathode circuit
of the output triode and the impact excitation circuit
achieved with potontiomotor 259 and cayteitor 255 keops
the amplitudos of both strobe ?irises equal.
Plan Position Re)eator Tuba
m*am.
Plan position repeater tube 110 is a cathode-ry.
tube of the 23XM34 'typo with mantic control of the
cathode beam.
The tube has a screoa wJ,th afterglow, q11 in
iameter.
The brilliance of the'dis?lay of the tube ;croon
in
controlled by means of varying the bias voltage on the
rid and the accelerating olectr?do. adjust-'
-s3ent is effoctod with CP potoutiomrttor l by moans of
varying.tho value of rositive voltago.fed to the tube
cathode.
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50X1
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50X1
The strobe and calibration pulses ars also fed to
the tube cathode.
The cathode beam is focussed by the magnkltic field
produced by the focussing coil when energized,.
The value of the current in fozunsing coil ill i3
controlled with CP variable resistor 107.
The radial sweep of the tubo. cathode beam i3 also
effected by the mai;:le tic field of n c an n in f: coil 112
deflecting the beam when the .sawtooth curreAt of ..rIve
37 passes through it. The coil in rot:Ited
of the tube with the aid of a waversal joint n!.aft
coupled with a synchronous motor.
The amPliried target si:,nals are applied to thr;
increasihg the brilliance of Cie tuba beam lt Le
moment of their application. The voltage of the slap's :;(-12
marker is also fed to the tube grid.
. The forward travel of the beam in sweepinr is
intensified by the positive pulse delivered from the vhddl -
of electron relay valve 10 to the aecelorating locfrVe,
The 'voltage id 5,000 V is rod to the tube anode
from . the high?Voltage rectifier.
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0
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PART II
OPERATING rc.1TRUCTION3
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No Foreign Diesem
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50X1
Chapter IV
SWITCHING THit UNIT ON MID OFF
?rearing the Unit for Use
After the station is Switched on, tho followinc
9ust be done to prepare the plan position repeater for
u3e:
. ,(a) turn BRIG1TIMS3 ( RPHOCTL ) knob fully counter?
c1ockl4ise;
(b) switch on the unit supply voltage with the
lain on/off switchx) BIE0-131C1.-BLIK.11.))
(c) select the required brightness of the tube
scales with the SC 't1,-; ( OCBEZEIME) knob;
(d) set normal brilliance of the sweep trace with
the 3RIGHTIV3SS ( RPM= knob;
(e) scet the best :)esaible fecussi.1;; Cr: the rivilal
%/le,-) trace with the FOCI.T.; (()OKYC ) kitob;
(r) set the necessary rano: 51 20 or 75 miles with
( TIEPEliji}311ATEM 1jlifil1A3OH0B);
(g) set the sweep length with the 31.T1P
PABBEPTIM) knob 30 as to t;ive enough (mace for 5
illibration rings;
x) The valve for blocking high voltage in the dioplal.
tube starts operating 30 ..- 40 soca after the curroat was
P,91ied to the unit.
No Foreign,Diesem
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.1 43 -
50X1
(h) use the CENTRING ( 4EHTP ) knob to match the
starting point of the sweep trace with the cursor .
'centre of rotation,
(i) select with.the CALIBRATION RINGS AND SS KOMA
KAMP H CO) knob such brightness of the calibration
rings and raage mark as not to "blur" the target signal
marks;
(j) turn on the S::IPIS ( HOC KOPAPIR ) switch
to obtain a ship's head signal on the Woo screen and by
turning the MATCRLIG ( COMACOBAHRE) knob line up the
s.aipos head mark engraved on tho movable scale of the tube
rith this signal; after thin switch off the ship's head
signal;
(k) for coarse measurement of tie beariug
the calibration rings and the fixed
Use
range and
scale;
(1) with the CALIBRATION RINGS ON/OFF ( KAROEP.
KOMIA BK1.-EUXA.) switch turn off the mlibrntion rings
if they are not necessary for operation;
(m) for fine range measurements use RANO; ( 71AIM0CM
knob to bring tho range mark in line with the target echo
so that its .external ring would touch the leading (nearest)
edge of the target mark without "blurring" it; in this
case it is possible to road the range of the range
computers in navigation Cables or in hectometers; at the
same time as the range mark is travelling, the range
transmitting selsyns in the motor unit turn through a
cerreaponding ialgle and introduce the distance tn.terms
of artillery cables:into.the target designation system; .
(n) for determination of the target bearing set the
cursor of the display tube to run. through the centre of
the target mark; the bearing is road off the fixed scale
againit,the cursor line, tho curaor being driven with the'
3 ) knob. -
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C.)
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50X1
When the cursor is moving, the relative bearing
transmitting selsyns in the motor unit turn through a
corres9onding angle, thus introducing the'relative bearing
into the ship's target designation system.
The transmission of target position data is Signalled
by pressing the button in the BEARIUG handwheel. Por
transmitting the data concerning the range and the
relative bearing of the selected target, the foot-pedal
switch (device 12) should be presned, thus sending a
signal to the target designation system that the target
position data have been determined accurately.
When the reply signal from tho ship's target
designation systel is received, the pilot lamps on the
control panel light up; the data transmitted by P.P.R.
are considered to have been received.
Note: In the course of operation it is necessary
to check up periodically the course matching by ?
momentary applications of ship's hoed signals Also Check
up periodically if the range readings are correct by
taking the readings offthecomputers at the moments when
the range mark is precisely matched with the correspond.-
ing calibration rings.'
Caution: The RSS and TU circuits use voltage of
kilovolts. Do not touch the high-
voltage curroAt-tarryinz parts of those
units.
Swit.clilm_citL_I/102 Plan Position, ft eater
To switch off the plan position. repeater, it is
necessary to do the following:
-,(a) turn the BRIGIMT=S knob fully counter.-
clockwise; ,
(b) switch off the voltage supply of the unit.
No Foreign Dissem
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50X1
ChapterV
MAXNTEVANCB OP TO UNIT
Tube Replacement
To replace, the display tube of the unit, it is
necessary to do the following:
.(1) Put on protective glasses (in case the tube'
bursts).
(2) Take off the bearing cursor.
() Loosen the four screws so that the bosses prossint
the ring to the tube permit to easily take off the ring a:113
the tube.
(4) Ta!:o of the cap of the high...voltage load from
the anode of the tube.
(,) Carefully support with the lo:t hand the upper
part of the tube, take the tuba with the right nand below
the focussing coil, and gradually pull it up till the
pins leave panel. Aftar that, holding th.'? tube by its u:))er
part with both hands, pull it out, taLing care that t:ta
tube does not touch the metallic parts.
(6) Then setting in a new tube, carerully lower its
neck through the opening in the scanning and locus3ing
coils, taking into account the direetion of the tube key
with regard to the panel. If the key and the Iminel do not
align with each other, take with the lea hand the 17er
part of the tube and support it, using the right hand for
taking the tube below the focussing coil and lifting it
till it leaves the panel. After that turn the upper part
of the .tuba a little to the left or to the 11.64 and
,lower it again. Repeat this operation till the tubo key
and the panel align, after which careZilly press the tube
on thj top till it sots in its place.
S-E-C-R-E-T
? No Foreign Dissem
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NU roll.11611 ViWcpCM
50X1
. (7) When setting the fastening ring and the cursor
take care not to strike the tube screen glass and not to
press it unevenly with screws.
(8) After replacement of the display tube it is
necessary to centre the tube beam. Coarse centring is
done by shifting the focussing coil. For this purpose it
is necesSary to switch on the unit and to mark the direcs,
tion in which the starting point of the sweep trace is
Aisplaced with respect to the rotation centre of the bears.
ing cursor and thon to switch off the unit and nhift the
focussing coil in the necessary direction with the aid of
the focussing coil fastening, 1)ins. Fine focussing is done
with the CEN.2RING knob. The shiftins of the focussing
coil should be done only with the unit switched off:.
Its beam is considered to be centered if the starts.
ing point of the sweep trace is not more than 2 mm off the
rotation ceatre of the bearing cursor.
Valve Replacement
asmOmnrowors?????wm.m............ma..?
The valves in the plan position re?eater are replaced.
when they are found defective.
Note: After replacement of one or all valves at once
(Rof.Vos 171, 179 and 19C) chock up the unit's range
indication, accurately matching. the rave mark with the
ctlibration rings in all three ranges and taking the
readings off the range computer. If tho range indication
is not any longer withinthe permissible limits it is
-necessary to 6o appropriate trimming with the aid Of
potentiometers 197, 198, 210 and 347 And capacitors 1831
195 and 187, depending on the ra.co'oeloCted.
No Foreign Dissem
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
Declassified in Part - Sanitized Copy Approved for Release 2013/11101: CIA-RDP80T00246A071800080001-6
J.611 111.0 0 G111
50X1
Chapter VX
PRZUNTATIVE MAINTENANCE OP P.P.R. UNITS
Daily Inspection and Maintenance of the Vats
01.4000.db~..........1.111?0?00?1041???????????????????????????? ???
Daily inspection and maintenance of the 1,41).11.. Units,
include external inspection of all units and inter-unit
cable joints.
For this puraose proceed as follows:
mos.......???????o??????smbe =1.1??????????????????????????
(a) chock up if all bolts and ncrews on the unit.
covers are tight;
(b) check up the oiieration of all unit knobs and
switches;
(c) check up if the lass of the trait ins?ection
N3orts is dry; if dloietvre is found, open the units awl ar;
them, switching on the heating devices;
(d) check up if the shafts of the XnaING, RANG?3
and COURSE EATCHING haadwheels are proper17 lubricated;
(e) after ,the inspection in overvswitc4 on tho unit
, for a 20-minute trial :run.
Weekly Inspection and ainteliaace of the Units
/oekly inspection of the P.P.R. units includes
everything pertain1n3 to daily inspection; in addition to
this it is necessary to do the fallowing:.
(a) putty and paint All the n)ote On the units w'acre
the paint is off;
(b) check up if the nuts in the gland inlets are
tight;
(c) wipe up with a dry rag all the units of device
110.4;
S-E-C-R-E-T
No Foreign DiRsem
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
Declassified in Part - Sanitized Copy Approved for Release 20-13/1-1101 :-CIA-RDP80T00246A071800080001-6
NO roreign vissem
unitd;
(e) Check 4 if the valve:: are set tight in the unit
panels;
(f) check 4 the surfaeex) on the power unit commutators,
and on the rings of the electric motors in the motor unit). .
(g) remove with N0,00 glass-paper the carbon deposit
from the knife contacts of the port-starboard switch and rub
them with alcohol (device No.11);
(h) switch on the unit for a )O-minute trial run;
(1) check up if the unit is timed with the station,
and verify range and course data transmisaion).
(j) check up by the P.i.X, calibration rings if the
range mark is accurately set.
For this purpose by turning the RANGE knob match the
range mark with each calibration-ring it succession. Take
the readings off the computers as to the range values at the
Moments of matching*
The distance between the rings as indicated by the
CAB= ( KABEMOBUE.) computer ahould be:
(a) in the 5-mile range-9.871 cables)
(b) in the 20.mile range-39.514 Cables;
(e) In the 75-mile ranges.148.110 cables.
Note; The P.P.R. should be chocked, adjusted and
operated at normal power supply with variations
not exceeding 13 per cent*
MonttlitInspec,ti2n and Maintenance of the Unit:2
Monthly inspection of the P.:P.R. .units includes every-
thing pertaining to weekly inspections; in addition to this,
. it is necessary to do the following:
53
(d) imp:PA and cloan the interlocking contact in the50X1
?????????????11?=???????????????11111?01111?11M11.1111110?10?????1?114111110
x) A normally operating commutator should be of 4
reddish colour with a violet tint. If the inspection reveals
carbon deposits on the commutator, it'should be rubbed with
a clean rag soaked in gasoline. If the dirt cannot be removed
with a clean rag, the commutator should be ground with No.00
glass-paper fitted on a wooden block with a cut of the same .
diameter as the commutator (grinding without a block is not
permiosible). The paper should bo'of the same width as the conm
mutator.Grinding'of the commutator should be done when the
motor operates at the rated number of revolutions. The Boleyr&.
rings should bs,wiped up with clean cotton cloth soaked in
alcohol*
S-E-C-R-E-T ?
No Foreign Dissem
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01 CIA-RDP80T00246A071800080001-6
Declassified in Part- Sanitized Copy Approved forRelease2013/11/01 : CIA-RDP80T00246A071800080001-6
No Foreign Dissem
?54-
50X1
(l4 Check up and clean, the contacts in all the
relays of the P.P.R. If there is a thin carbon deposit
on the contacts, it should bo removed with a thin :)late
wrapped in apiece of cloth soahed in alcohol. This .
should be done carefully in order not to disturb the
.
adjusted relay contacts. Than tho carbon-dpile Voltage
regulator should be inspected. Opecial care should be
taken lest the regulator core should touch the coil.
(2) Check up the lubrication of the ball bearirvo -
and add lubricantlif necessary.
Lubricants are applied at tom)ore.tures 7anging
from 60? to 600C. A thin Layer of roo-5.1 lubricant
should be applied to all the friction parts of the unit
(Shafts, change?over knobs of the switches) aad to the
toothings.
Lubrication is done with a brush.,
Far the selsyn bearingstas well .as for all other
ball bearings of the unit the MBH lubricant is used.
The lubricant is fed to tho unit with the aid of 1
lubricator.
Lubricant in the boarino is replenished at each
monthly incoection of tho unit.
To replenish tho lubricant in the batwings, it in
necessary to do the following:
unscrew the external CW13 covering tho bearings;
? remove with a cleaa rag the romaindera of the old
lubricant and feed fresh lubricant to thaboarinEs.
When adding the lubricant, one should never ovorbrin
the socket. The quantity of lubricant will bo sufficient
enough for a month's operation, if the ball cage is fillod
flush with b ims.
'4hon feading the lobrleant to the bearings, care .
S-E-C-R-E-T
No Foreign Dissem
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
- ? I
Declassified in Part- Sanitized Copy Approved forRelease2611-1/017CIA-RDP80T00246A071800080001-6
au ruic.Lbil VLDOCM
.. 55..
should be taken that no threads, filings, shavings, etc..
get into the bearing,
Atter the bearings are filled with lubricant, their
protective cups ahould be returned to tier places.
"
4111 No Foreign Dissem
?
50X1
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
9-1-000800081-LOV917Z00108dC1I-V10 1-0/1- 1-/? eseeiej Jo j panaiddv Ado pazWueS - 4-led u! PeWsseloeCI
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1-3
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t_ 203
204
A.112 3ND107; S
Com'Donent Schedule
??????????? +11????????11.111?=??????????????????????????????=111.???????????????????????????????????-T.
Appendix I
Ref.
Name and type 2lectric and other Quan?
Uo. data tit7
!rote
3 ?
195
196
202 I
339
340
Racal:ring selsya CC-301
_Receiving selsya CC-501
Transmitting aeluyn
4114-511
Transmitting selsyn
AA-511
Trclsmitting selsyn
4g-511
Terminal panel
Ter4ina1 ?el
Ligjat
Turn value 300 mils
Tvrn value 10 of the
Course
Turn valug 6,000 mils
Turn value 600 cables
Tura value 200 oils
for 12 terminals
for 12 terrAmala
1 2nd ?recision
. CI4S3
1 ditto
1 ditto
1
1
ditto
ditto
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Declassified in Part - Sanitized Copy Approved for Release 20-1371-1/-01-: -CIA-RDP80T00246A071800080001-6
NO rorelgn
?
0,1
?-1
'1
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50X1
map.,
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r4 e4 r4 "4 "4
torlinals
terminals
443
0-4
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$.4
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$4 f4
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4-t14 4-1
for 10 terminals
I t
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r1 r-4 0-4 r?I
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d0d0b3 t3 0
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r-I ?-4 ? ;If 1:\ 111 it% CO in ." ir, IA el Ca "0
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S-E-C-R-E-T
No Foreign Dissein
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
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wassTa uilTaaoa Om
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0
133
149
151
171
179
190
1
2
7
15
16
.19
27
28.
29
31
33
Valve 09
! Valve 6E4
, Valve 61:4
i Valve 6J8C
! Valve .6174
i Valve 6E4
1 Capacitor KCO-1-250-73-51-1
?
Capacitor ZCO-2-500-8-270-1
Capacitor =0-4-500-3-2,00-1
: Calmcitor 77"3-500-0.5
Capacitor =0-8-50a-3-20,003-I:
1 Capacitor irC3-5C0-0.5
Capacitor =0d-2-500-E-24-1
Capacitor =0-2-500-E-24-1
Capacitor 1:C0-2-500-r-270-a
Capacitor XCO-4-500-r-1,2C0-1
Capacitor nC0-4-500-r-1,100-1
. Capacitor :X0-8-./.)':)377-1C?000-!:
51 ,,P15,73
270 015r0
2,000
0.5 pF
20,000 pg100.;
0.5 pF
24 pFi57,
24 pg,;!,
270 pFIZ
100 pFIZ
1,100 pFt,
I40 10,000 prtioc,
1
1.
1
1
1
1
1
1
1
1
1
1
1
1.
1
1
4
1
245 270 pp
1,200 - 1,300 ye
Selected vithin
4,400 - 5,000 ?Fr
in parallel
oi
0
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co
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co
co
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CD
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1 2 3
4- 4 ! 5
42
51
54
55
63
68
69
71
74
75
79
' C2
88
? 94
97
- 135
113
120
? 122
12$
.131
144
Capacitor KKB-500-2
Caoacitor. NKB-500-4
Capacitor UKB-500-4
Capacitor :M-500-4
Caoacitor
C.T.p.acitor
Czi/acitor KTK-1-M.-39-1
Capacitor 7C0-5-500-r-2,000-1
Ctpacitor XCO-5-500-2-3,300-1
Caacitor ECO-10,000-II
2 pF .
4 pF
4 g
4 ;IF'
20,000 pFt10,:y
200.
39. Pg5i!,
2,000 pg-55.;
3,300 pg5r)
10,000 0121.0?;;
20,000 pg105
20,000 pg105,
20,000 pF110
1 pIP
1 pr
10,000 pg100
O. pF
0.25 JIF
10,000 pg1K
0.5 r
20,000 prIloi!,
1
1
1
1
1
1
2.
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
In parallel
-8-1,000-3
Capacitor
Capacitor =0-8-500-3-20,000-11
Capacitor =0-8-500-3-20,000-II
Capacitor ZUCB..500-1
Capacitor
Caoacitor it203-500-0?5
Capacitor
Capacitor M1CB-.260-0.5
Canacitor Ht116-500-0.25
Ca2acitor
Capacitor
Capacitor =0-3-500-3-20,030-II
?
'Jed pau.issepac
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
wassm u21Taaoa og
???????11Mn. .????????1????.?????????
2
151 f ?Capacitor Mi-300-0.1
/52 Capacitor !M1;--260-0.5
157 1 Capacitor =0-3-500-B-10,000-II
158 1 Capacitor ?I:M-500-0.1
159 . Capacitor
! NEr-E1-1-2H-200- i -11
17) Ca:yacitor
175 Ca-lacitor .17C0-4-500-
1,500-36..1-500-11
176 I Canacitor i=-500-0.1
182 Capacitor =0-5-500-F-1,600-1
183' Capacitor KflK-2-25/150
184 Capacitor =0-4-500-r-1, 50C-11
1
185
186
187
189
101
192
Capacitor KO-2-25/150
Capacitor KCO-4 -500 -r -1,500-II
Capacitor MK-2.-25/150'
Capacitor nn-500-0.5
Ca7acitor KCO-1-250-3-51-1
Cr4p?tritor
0.1 pP
0.5 yP
10,000 pF2:101S
0.1 oF
4YF
0.1y17
1,300 pFIZ:
0.1 pi.'
1,600 pg55'4
25 -150 plr
1,506 pFtICK,
25 - 130 pF
1,500 01:10'n
23 - 150 pF
0.5 uF
51 pg5c; ?
0.1 ..tiF
a
3.
1
1
3
Selected within
tolerance
Selected within
tolerance- ?
selected within
tolerance
?
0
CD
0
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(/)
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(5)
I Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
u2Ta.zoj ON.
tri
1. 2
4????????WV?????
212 I
321.
322
348
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Capacitor =0-8-1,000-3-10,000-II
Capacitor =0-8-500-3-20,000-II
Capacitor i.10-500-0.1
Capacitor MC0-2-500-E-100-II
3 ; Resistor
4 i Resistor
5 Resistor
8 Resistor
;
9 ! Resistor
11 i Rosistor
12 1 Resistor
13 i Resistor
17 I Resistor
18 'Resistor
I
20 Resistor
22 Resistor
23 Resistor
A
24 t Aesistor
3) 'Resintor
i
1
i
t
I
1
BC-1-20
BC.-1-100
BC-1-470 :A1ohms?5-
BC-1-5.1 Ic11ohns-5-";
BC-2-20 It'i1ohms-5:
BC-1-5') ki1ohms-103
BC-1-51 kilohms-5
JC-1-30
3C..1-5:>0 !U1chms-10:",
BC-1-47 ki1ohms-10',
BC-1-550 ki1oL,7,5-10-
3C-1-100 ohm-5;
BC-1-150
BC-1-1.5 kllohos
3C-1-15 k11ohms-5
3
10,000 pF?10
20,000 pFt100
0.1.1a
100 pF-110*
20 Ll.1ohms4:;
100 ki1ehms?5::,
470 ki1ohms47,
5.1 kilohmsI,
20 kilohmsIZ
56 ki1ohms1:10'::.
51 ki1ohmst5:;
30 k1.1ohms15:;
0.55 megohmI113.1 1
47 ::i1ohms-1105') 1
0.56. megollmI10132.
100 k11ohms=5.!, 1
150.ohms?1C 1
+
1.5 ki1ohms-10 1
15 kilohmst57., 1
4 ; ?
1
1
1.
1
5
Seloc tea 7rithim
the limits of
70 -.100 pr
It parallel
.ditto
aitto
Selectec3
the limits of
.10 - 30 !:ilohms
?
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
?CA
massTa uBTa.zo,E oN
ol??Innraaanpaoim?g????????...
1
2
3 . 4 5
?
1 32 Resistor 2C-1-1.5 kilohms-%
1.5 %ilohms1.5..,
I
I Selected within
the limits of
1.5 - 3.3 'Al-
ohms
I36 Resistor BC-2-200 ohms-10c,
200 ohmstMS 1
41 Resistor BC-1-15 Iz11oams-10:.
15 ::11ohmst106 1
43 Resistors tubule.r, 1V-500
500 oilms 1.
44 Resistor DC-1-33 Ic11oams-10.:
33 Ict1ohms2:10:3 4 In Dc.:::..1101
46 Resistor SC-2-10 ki1olzs-10:.
10 kllahmsZIU.; 1
47 Resistor 30-1-4.7
4.7 ki1ohmst10
2 In parallel
48 Resi3tor BC-1-4.7 kj1s-10?
4.7 kllohmslIT:
2 ditto
49 Resistor 3C-1-5.6 1:11ohms-10::
5.6 ki1ohms=10'n
2 ; ditto
50 alsistor, tubular, 1V-5,000
5,000 ohms
it
52 itsaistor BC-2-22 ki1ohms-1
22 1ilohmst105':
1.
53 Resistor, tubular, 11-200
200 ohms
1
62 Resistor DC-1-1 ter,ohm-10
1 megohmIlM
1
64 Resistor 3C-2-39 1:i1ohms-10':
39 ki1ohmst1O'-
2
In parallel
76 Resistor BC-1-.56 ki1ohm3-10':.
56 ki1ohmst101:.
1
77 1 Resistor BC4-240 ki1ohm3-5"J
0.24 megohm=5".
1
BO Resistor 3C-1-100 ki1o41s-10;,
! Rosi:Ar
100 kilohmsI10i,
15 ki1ohmst5.A
1
1.
:cnintor
1
01
35 I Ao-tntur '),C-2-4 .7 r;:,7-n-4,. ?
4.7
?
(5)
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
wassTa aTaaoa om
I ; 2
89 Resistor 3C-0.5-560 ki1ohms-10 1
90 . Res1st:5r 13C-2-100 ki1ohms-105
91 Resistor BC-2-1.2 .t11ohms-105
92 Resistor 3C-2-1 kil.)hm -55.4
96 Resistor BC-1-62 k11ohms-5'...=
100 Resistor BC-0.5-100 Iti1ohms-105::
1
104 i Resistor DC-1-1 I:11311z -10,../
106 I Resistor BC.-2-10 1:11ohms-105
1
I
113 1 Resistor BC-1-52 ki1ohms-5:,
116 ,lasistor 3C-I-30 k11ohms-51
121
Resistor 3C-0.3-100 ki1oh:As-105
'..Zosistor DC-1-33 1.:i1ohms-10::,
?
1
3 t
4
550 111ohmst105 !
1
ms-10c,
100 kiloh+
1
1.2 Ift1ohmst10140
1
1 hilohm
1
62 ki1olgis?5c:
1
100 1.310110si:10071
1
I kilohm -1011.7
1
10 ki1oh1!s1100
3
52 ki1ohms4.;
1
33 ki1ohms?551
1
100 1ci1ohm32:10:'.,
1
33 ki1ohma:10;",1.
1 5
caw*.
In paral/ol
selected withinthe
, limits
I10 - 15 !al-
' ohms
I? Selected
within. the
limits oZ
22 - 30 :cil-
ohms
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
massTa taTeaod
?
ped UI pewssepeo
(I)
$2,)
CD
0
11
2
: 4
41111.am..????????? ....p.m ? ? im.4 ???????????
5.6 1.1.1olimsZ10e,; 1
????????????????????
5
123
??????
Resistor DC71-5.6 kilohms-10%:,
125
Resistor BC-1-8.2
82 ohm s10 ?
127
Resistor 0C-0.5-100 ki1ohms-105:
100 kilohms=10
1
128
Resistor 3C-1-2 kilo uas-5c
2 kilohmstV',
1
1
129
Resistor BC-0.5-22 kilohms-105
22 ki1ohms2:100
1
CD
130
Resistor BC-1-330 ohms-10::-
330 ohnst10',;
1
132
Resistor 3C-1-1.5 1:110h03-5
1.5 kilolimpl%
1
136
Resistor BC-0.5-20 kilohms?%
20 kilohmsI5
1
1 (1)
CD
137
Resistor BC-0.5-10 ki1e'ams-57:.
10 kilohost%
1
CD
133
139
Resistor BC-0.5-120 ki1ohms-1001)
Resistor 3C-0.5-22 ki1ohms-10T,
120 kllohmslICW,
22 ki1ohms?101)
1
1
1\.)
o :11
41.
140
Resistor BC-0.5-100 ki1chms-10c:,
100 kllohmsti%
1
,11
c I
141
Resistor BC-0.5-10 ki1ohms-105S
10 iz11ohmst105
1
.
' oI
142
Resistor BD-0.5-10 ki1ohms-105:,
10 ki1ohmst10%
1
-3
$ 0
143
.Rosistor BD-0.5-6.8 hi1ohms-106
6.8 ki1ohms110.,
-11015
1
145
Resistor 3C-0.5-22 k11ohms-10'7,
22 kilohms
1
0
146
Resistor BC-1-68 Ici1ohms-10(,s,
S8 kilohms=10'S
1
co
147
Resistor 3C-1-2 ki1ohms-5
2 1:ilohms!5(:)
1
148
Resistor BC-1-22 111ohms-10'7,
22 ki1ohms?10,
1
150
Resistor BC-1-100 1:i1ohms-10'$
100 kilohms?10!,
1
153
Resistor 3C-275.6 5.6 !A1ohms?106
1
154
ac1ntr 10-1-10() 100 kilshmo:?10.
1
co
1,5
aealntor 73C-1-2.2 L.1.1o=xm3-13 2.2 LA1oanst10
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160 1 R
esistor BC-0,5-100 Ic11ohms-10:';
I
-162 Resistor BC-2-10 k11ohms-10:
163 Resistor BC-1-8.2 k11ohms-105 '
164 1 Resistor BC-1-5.5 %ilohms-105:-
165 ! Resistor BC-0.5-330 ohms-10i-,
I
165 Resistor. BC-0.5-100 1:11shms-10
157 Resistor 3C-1-550 ohms-10r,:,
,
168
172
174
177
178
180
189
199
214
263
323
Resistor
Resistor
Resistor
Resistor
BC-1-3 megohms?M
BC-1-1 megohm-1
3C-2-5.1 k11ohats-5
8C-1-51 kilohms?%
Resistor. B-2-5i0 kilohms?%
Resistor
Resistor
Resistor
Resistor
Resistor
.Resistor
3C-0.5-330 ohms-105..7
BC-1-510 ki1ohms-5::
BC-0.5-330 ohms-10:::
BC-1-100 ki1ohms-10:".
BC-1-200 kilohms-10::
DC-0.5-22; :A1ohms-10',:,
.:?.?????????
3
4 5
? ??????oavem1
11.41M1
100 ki1ehms1.1073
10 ki1ohms210f)
8.2 1c11ohms?105'-
5.6 ki1ohmst105.7
330 ohms?10c,
100 kilohmstlit,
560 ohms?10
1
1
1
1
1 1
1
1
elected within
tie limits of
330 ? 2,000 ohms
1
3 megohms210
fIn series
?
tr
1 megohm?10
1
5.1 ki1ohms2:55:,
3
In series
51 1ci1ohms=5,:t
0.51 megohm?5;!,
1
330 ohms1W
1.
0.51 mea.shm
330 ohms1:10
1
100 kilohmsIlOr',
200 kilohmstlOi!,
220 tilohmstlOc:
?
???????????????????????????Yalmemlmolftetwa........,..40.11........... mIbralmaimovalleorlyme..?
f 2
3241?Resistor BC-0.5-33 kilohms-10
325
326
327
329
329
330
331
334
335
346
6
? 35
25
.36
Resistor BC-0.5-56 ki1ohms-105.;
Resistor B0-1-10 ki1ohms-10';;
Resistor.3C-0.5-330 o1ims-105S
Resistor BC-0.5-330 obms-10r,
Resistor BC-0.5-5.1 kilohms-55J
Resistor BC--0.5-5.1 1:ilohms?%
Resistor BC-0.5-560-ohms-10
Resistor 3C-0.5-330 ohms-107;
Resistor BC-1-120 ohs-1Oi"J
Resistor BC-1-220 kilohms-105!,
Rfnge switch
Low?frequency choke
Vnriable wire?wound rzsietor.
'lire?wound resistor
33 k11ohms2:105;
56 ki1ohmst105
10 lalohmst10
330 ollstl%
330 ohms-110
5.1 3d1ohms2:55,
5.1 ki1o1mst5
560 ohmt41%
330 ohm410
120 ohms=10
220 kilohms1-10'7:
3.5
600 ohms
50 ohms=5
4 5
1 I
1
1
1 1
1
1
1 ;Selected
ivithia the.
;limits of
1550 ohms ?
15.8 kilehms
1 1
1 ;
1 ;198 ? 242 kil?
ohms
1
1.
1
'Jed u! pawssepaa
Cr.
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
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I 2
3
45 ;
117 :
134
169
170
181
197
198
210
211
347
67
70
73
86
135
297
298
299
Variable wire-wound
Wire-,wound resistor
7ire-wound resistor
Iire-wound resistor
.Wire-wound resistor
resistor :
Resistor C11-1-2a-10A-13
Variable wire-wound resistor
Variable wire-wound roststor 1
Variable wire-wound resistor
Wire-wound resistor
Variable wire-wound resistor
Self-inductance-coil
Self-inductance coil
Self-inductance coil
Self-inductance coil
Self-inductance coil
Terminal panel
Terminal panel
Terminal panel
20,000 ohnst%
150 ahmst%
50 ohms:L.5%
20,000 ohms?1%
0.375 megohm?10
10 kilohms
1,000 ohms?5%
1,000 ohmst%
5,000 ohmst55
16,700 ohms1.155
20,000 ohmst%
11 16.5 aa
25 - 36 ma
110 - 160 dU
300mH?5%
for 8 terminals
for 6 terminals
for 8 terminals
4
1
1
1
1
2
1
1
1
1
1
1
?1
2
1
1
1
1
1
1
5
4111=?????..............m......???????????????????????????
?
Common self-induct-
ance with carbonyl
core
Common self-induct-
ance with carbonyl
core
Common self-induct-
ance with 2 carbonyl
cores
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01 : CIA-RDP80T00246A071800080001-6
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Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01 : CIA-RDP80T00246A071800080001-6
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Declassified in Part - Sanitized Copy Approved for Release 2013/11/01 : CIA-RDP80T00246A071800080001-6
u-i-uous00081-LOV917Z00108dCll-V10
7
1 . 2 3
252 Self?inductance coil
253 i Capacitor REK-2-25/150
215 Resistor.
kilohms-105;
218 Resistor
BC-0.5-55 ki1ohms-105t,
24. Resistor
BC-0.5-5I kilolims-5
221 1 Resistor
3C-1-3 megohms-1M
222 1 Resistor
BC-1-3.3 kilohms-10%
226 fResistor
BC-2-120 ki1ohms-10%
227 f Resistor
BC-0.5-33 ki1ohms-10
233 Resistor
13C-0.5-56 ki1ohms-1055
23 I Resistor
Ba-0.5-5S-1:11ohms-10
3.0,?0.2dR
25 ? 150 pH.
3.6 kilobnal.10,
55 ki1ohmst105
51 ki1ohms255
3 megohmst10%
. 3.3 kiloh1I23!10%
120 kilohmst.10%
33 ki1ohms=100
56 ki1ohmst10:7.
55 kilohms?10
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
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wassTa u2Taaoa og
ara-u-o-a-s
237
238
239
242
243
244
248
249
250
257
238
274
275
278
280
295
296
304
312
56
270
287
23
????????????????...
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
.BC-0.5-33 k11ohms-10%
BC-0.5-56 ki1ohms-10%
BC-0.5-4k1lohm -10%
BC-2-100 ki1ohms-10%
13C-1-30 1:11oIlms-55
BC-0.5-2 kilohms-5%
2C-0.5-100 ki1ohms-10%
BC-0,5-1 ::ilohm -105
BC-2-20 iA1ohms-55,
BC-0.5-1 megohmI10%
BC-0.5-3.3 !:ilohms-105
BC-1-560 ki1ohm1-105,
ki1ohms-105
1ci1ohms-10%
ki1ohms-105',
fl?is
kilohms-105S
1:110=3-105,
BC-1-550
BC-1-270
BC-1-270
tubular
BC-1-220
BC-le-270
Insulator
Choke
Choke
Transformer
iTan3formor
3 4
33 ki1ohms.?10$5
1
56 1ci1ohms?10?
1
1 kilohn 110
1
100 ki1ohmst105
2
30 kilohms?5%
1
2 k1lohm3t5 1
100 lalohnsI10 1
1 !:ilohn =105 ? 1
20 kilohmst55 ? 2
1 megohmIlDiS 1
3.3 kl1ohnsI105
1
560 ki1ohms:-.10
1
560 kilohmstlOn
1
270 ki1ohns-1e%
10
270 kilohms2:10;!,
12
15 ohms
1
220 k1lohmst10
3
270 ki1ohms?1015
2
1
1.3 HI20K.,
1
1.3 HI20i;
1
1
OD
1
5
In. parallel
In series
In series
In series
In series
In series .
?
0
CO
0
0
0
CO
0
0
0
(5)
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01
CIA-RDP80T00246A071800080001-6
wassui uSTaaod ON
i!a
amemalwomr1.1111?1??
11 2
..,mr?????????????????..........w.?
? a
4
5
??????????????
259
389
308
309
310
311
317
Variable wire?wound resistor
Terminal panel
Terminal p:nel
Feeder plug
Feeder plug
lionitoring jack.
3,000 ohms
for 6 zon tttigial
O s
for 6 terminals
for 6 terminals
?In?
?11111
1
1
1
2
Tube Unit
? 110
Tube 2=4.
Oa
103
Capacitor
10,000 pF1105;
302
Thermosviteh
411110
108
.Terninal plate
fore terminals
109
Terminal plate
for 10 terminals
111
Focussing coil
112
Scanning coil
113
Brightening lamp,
type 17
26 V; 0.15 4
318
Brightening lamp,
type 17
26 V; 0.15 A
. 319
Hatching meelanism
\*:colas/
0a UP-1
hoad al.Itch
CP L.p.n. Coiror
1
1
1
1
1
1
1.
6
2
1
1.
In parallel
/n parallel
?
?111
1-led LI! PeWsseloeCI
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01
tuassTa u-ca-toaOM
.1 2
1
289 Scale illumination switch
I
.205 Heater switch
290, Switch
65 Station change-over switch
101 Calibration rings switch
34 Centring poteatiometer
.39 Sweep length potentiometer
93 Calibration rias aad SS
1
- .wire-wound Dotentiometer
102
107
207
207a
Brightness wire-wound
potentiometer
Focussing wire-ound
potentiometer
nase.in a holder
'Nee in a holder
261 Brightening lamp, type 17
I
26Ia Brightening lamp, type 17
194
? 3
1
for 3 positions
for I position
for 3 positions
10 kilohms
I 1:11ohm-
10 kilohms
20 kilohms
10,000 ohms
for 2 A ?
for 2 A
25.V; 0.15 A
25 V; 0.15 A
Elements not included in TU, RT.To ass
..1111110.101....??????=?=0.0?111.0.11111.111111?1111.41.11.10.14.0111111.511.011?1?010M11...
:apacitor KB-260-2
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1. I
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9
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0
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0
CO
0
0
0
CO
0
0
0
S-E-C-R-E-T
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
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No Foreign Dissem
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6 _
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01 : CIA-RDP80T00246A071800080001-6
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Potent p08.45
Table of Valve D.C. Characteristics
Hos of valve
co
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Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01 : CIA-RDP80T00246A071800080001-6
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76
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S-E-C-N-E-T
No Foreign Dissem
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
S-E-C -R-E-T
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01 : CIA-RDP80T00246A071800080001-6
? 50X1
Ref, No.110. Second anode (anode cap) 5,000 V1500 V.
Accelerating electric terminal 3 of terminal panel 1,
Ref. No.109, 133 Vt35 V. ?
Modulator grid, terminal 4 of terminal panel 1,
Ref. NO.109, 80 1415 V,
Cathode, terminal 5 of terminal panel 1, Ref. No.109.
From 340 14 35 V to 125 V I 40 V.
The focussing coil, terminals 1 and 2 of terminal
panel 1 Ref. No. 109 - not loss than 75 V and not uore
than 190.V; terminals 5 and 6 of terminca panel Ref. No.
309 - 315 V 2.: 35 V; terminals 2 and 10 of terminal panel'
Ref. No. 307 - 400 Y 25 V; terminals 3 and 5 of terminal
panel Ref.No. 303 - 340 V 35 I/ (at the beginning of
heating Ref.No. 276); terminals 3 and 5 of the terminal
Ref. NO. 303 - 125 V 40 V (at the end of heating
Re f *No ,276).
Note: 1. The voltage values are given with
respect to the unit bod/..
2. Neasurements should bc. ta!:en with an
avometer
3. Measurement:1 should be tal:en in thu 50-mile
range unleas 75-mile r:..ftge is s.iocified in
the table.
4. The A.C. characteristics tables of
device Ho.4 are given in toresllonillag
Specifications for the device units.
411114WWOD.....I.gm..bpe..srID
_
No Foreign Dissem ?
? ?
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6 -
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01 : CIA-RDP80T00246A071800080001-6
Appendix 3
BASE CHART OF RADIO VALVES
61/N
544C
6173C
61/8C
5g3C
6X6C
81002/20
6/79
23J7M34
6C5C
No Foreign Dissem
50X1
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Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
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Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
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Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
S-E-C-R-E-T
No Foreign Dissem
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No Foreign Dissem
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
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No Foreign Dissern
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Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
No Foreign Dissem
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No Foreign Dissem
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
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Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
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S-E-C-R-E-T
No Foreign Dissem
No Foreign Disgem
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Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
Declassified in Part - Sanitized Copy Approved for Release 2615/11101:CIA-RDP80T00246A071800080001-6
No Foreign.Dissem.
FT 6 SIMPLIFIED 0/4 CRAMS OF RANCE
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Declassified in Part - Sanitized Copy Approved for Release 2615/1.110.1 7CIA-RDP80T00246A071800080001-6
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S-E-C-R-E-T
No Foreign Dispem
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No Foreign Dissem
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Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6
SECRET
NO FOREIGN DISSEM
SECRET
NO FOREIGN DISSEM
Declassified in Part - Sanitized Copy Approved for Release 2013/11/01: CIA-RDP80T00246A071800080001-6