INSTRUCTION BOOK FOR RADIO STATION (RS-6-XX)

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-03535A000700130059-5
• Release Decision: RIFPUB
• Original Classification: C
• Document Page Count: 35
• Document Creation Date: December 23, 2016
• Document Release Date: September 11, 2013
• Sequence Number: 59
• Publication Date: January 1, 1953
• Content Type: MISC

Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Xzi4i5a
iCONr: IQENTIAL:
INSTRUCTION BOOK
FOR
RADIO STATION
P\ A
CC.
DOCUMENT NO.
? No.. CHANGE I LASS. 0
DECLASS; 1ED
CLASS. CHANGED TO: TS S
NEXT REVIEW DATE:
AUTH: H 70-2
DATE 6A19, i'WEVIEWER: 010958
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
TABLE OF CONTENTS
CHAPTER 1.
Section I.
INTRODUCTION
Description & data
Paragraph
Page
General
1
Transmitter RT-6-XX
2 ,
1
Receiver RR-6-XX
3
1
Power Supply RP-6-XX
4
1
Filter-Accessory Unit RA-6-XX
5
1
Additional accessories
? ?
? ?
? .
6
CHAPTER 2.
OPERATING INSTRUCTIONS
Section I.
Setting up equipment
AC operation hook-up
1
3
Battery operation hook-up
2 .
3
Hand generator operation hook-up
5
II.
Battery charging hook-up & operation
Transmitter RT-6-XX
4 ,
5
Controls & functions
1
6
Crystal selection
2
6
Antenna length and height
3
6
Ground connection
4
6
Tuning
5
7
Keying
6
8
III.
Receiver RR-6-XX
Controls & functions
Calibrating the tuning dial
2
8
Tuning ( variable)
8
Tuning (crystal)
4
8
Log scale
5
9
CHAPTER 3.
MAINTENANCE
Section I.
Receiver RR-6-XX
Circuit description
1
10
Alignment
2
10
Disassembly & reassembly of dial sealer mechanism
z3
16
II.
Transmitter RT-6-XX
Circuit description
1
17
II
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III.
Paragraph
Power Supply RP-6-XX
Page
Circuit description
1
19
How to replace vibrator
2
19
How to replace power transformer
3
19
IV.
Filter-Accessory Unit RA-6-XX
Circuit description
1
20
How to disassemble ?
2
20
V.
Packaging
How to replace units in plastic pouch
1
22
CHAPTER 4.
PARTS LISTS
Section I.
Receiver RR-6-XX
23
IL
Transmitter RT-6-XX
27
III.
Power Supply RP-6-XX
28
IV.
Filter-Accessory Unit RA-6-XX
29
III
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LIST OF ILLUSTRATIONS
FIGURE
1
TITLE
?Radio Station RS-6-XX
PAGE
2
Filter-Accessory Unit RA-6-XX Opened, Showing Accessories
2
3
Additional Accessories
2
4
Power Supply RP-6-XX Showing Control Switch and Power Plug
3
5
Radio Station RS-6-XX A-C Operation Hook-Up
4
6
Radio Station RS-6-XX Battery Operation Hook-Up
4
7
Radio Station RS-6-XX Hand Generator Operation Hook-Up
5
8-
Radio Station RS-6-XX Battery Charging Hook-Up
6
9
Transmitter RT-6-XX Showing Control Locations
7
10
Filter-Accessory Unit RA-6-XX Showing RECVR-TRANS Switch
7
11
Receiver RR-6-XX Showing Control Locations
9
12
Receiver RR-6-XX Schematic Diagram
11
13
Receiver RR-6-XX Top & Bottom Views Showing Alignment Adjustment
Locations
12
14
Receiver RR-6-XX Showing Panel Assembly Parts Locations
14, 15
15
Receiver RR-6-XX Top Views Showing Parts Locations
16
16
Disassembly of Receiver RR-6-XX Dial Mechanism
16
17
. Transmitter RT-6-XX Schematic Diagram '
17
18
Transmitter RT-6-XX Parts Locations
18
19
Power Supply RP-6-XX Schematic Diagram
19
20
Power Supply RP-6-XX Vibrator Replacement
20
21
Power Supply RP-6-XX Parts Location
20
22
Filter-Accessory Unit RA-6-XX Schematic Diagram
21
23
Filter-Accessory Unit RA-6-XX Parts Location
21-
24
Packaging Detail
22
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IV
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, TRANSMITTER RT-6-XX
?
190 .150 ,?
120
?"/0
"
POWER SUPPLY RP-6-XX
-RECEIVER RR-6-XX
FILTER-ACCESSORY UNIT RA-6-XX
Figure 1. Radio Station RS-6-XX Components
`.
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Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
CHAPTER 1 -
INTRODUCTION
Section I. DESCRIPTION & DATA
1. GENERAL -
? Radio, Station RS-6-XX is a compact four-unit
set for transmitting cw and receiving cw or am.
It operates from ac, storage battery, or hand
generator, and consists of a Transmitter RT-6-XX,
Receiver RR-6-XX, Power Supply RP-6-XX, and
a Filter-Accessory Unit RA-6-XX. See Figure 1.
2. TRANSMITTER RT-6-XX.
a. Type: 2-stage, crystal controlled
b. Frequency range (two bands)
(1) 3 to 7 mc
(2) 7 to 16.5 mc
c. Power Output: 9 watts (nominal)
d. Power Input:
(1) 400v dc at 75 ma
(2) 6.3v ac-dc at 1.2 amp
e. Weight: 2 lb 14 oz
f. Dimensions (inches): 6-3/4 x 5 x 2-3/32
3. RECEIVER RR-6-XX.
a. Type: Superheterodyne, variable tuning
crystal controlled
b. Frequency range (two ban'ds):
(1) 3 to 6.5 mc
(2) 6.5 to 15 mc
c. Power Input:
(I) 90v dc at 50 ma -regulated
(2) 6.3v ac-dc at 1.2 amp
d. Weight: 3 lb 2 oz
e. Dimensions (inches): 6-3/4 x 5 x 2-1/4
4. POWER SUPPLY RP-6-XX.
a. Power Input:
(1) a-c 70 to 270v, 40 to 400 cps
(2) d-c 6.3v at 12 amp
b. Power Source: a-c line or 6...volt storage
battery.
c. Power Output:
(1) 400v dc at 75 ma
(2) 90v dc at 25 ma regulated
(3) 90v dc at 25 ma regulated
(4) 6.3v dc at 2.4 amps
d. Fuses:
(1) a-c -1.5 amp
(2) d-c - 15 amp
e. Power Factor:
(1) 40 cps -
(2) 60 cps - 86.7
(3) 400 cps - 96. 3
f. Weight: '5 lb 11 oz
g. Dimensions (inches): 8-1/16 x 4 x 2-3/16
5. FILTER-ACCESSORY UNIT RA-_6-XX.
a. Function:
(1) Filters B+
(2) Regulates receiver B+
(3) 'Provides storage space for
and power cables. See Figure 2.
b.
c.
Or d.
1
1
1
1
1
accessories
Weight: 3 lb 11 oz
Dimensions (inches):-8-1/16 x 4 x 2
Accessories:
Earset & cord
AC cable assembly
Battery cable assembly
Spare fuse - 1.5 amp
Spare fuse - 15 amp
Set Schematic Diagram & Parts List
6. ADDITIONAL ACCESSORIES.
a. The following accessories
a plastic pouch (see Figure 3):
1 Hank antenna (100 ft)
2 Antenna insulators
2 Battery clamps
are contained in
1
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Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5,
AC CABLE
ASSEMBLY
W-301
SPARE FUSE BATTERY CABLE
F-301 ASSEMBLY
W-302
SCHEMATIC DIAGRAMS
AND PARTS LISTS
C-302 A a B
EARSET
RECEIVER
HS-301
EARSET
CORD
W-303
COVER CATCH SPARE FUSE GROUND STRAP
RELEASE F-302
Figure 2. Filter-Accessory Unit RA-6-XX opened, showing accessories
ANTENNA INSULATORS
E-302
Figure 3. Additional accessories
BATTERY CLAMPS
H-301
HANK ANTENNA
E-301
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Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
CHAPTER 2
OPERATING INSTRUCTIONS
Section I. SETTING UP EQUIPMENT
1. AC OPERATION HOOK-UP
a. Turn input voltage selector switch on Power
Supply RP-6-XX (Figure 4) to OFF.
b. Pull sending key out of recess on Trans-
mitter RT-6-XX.
c. Connect equipment as shown in 'Figure 5.
(Receiver crystal shown is optional).
(1) The Jones plug marked AC must be in-
serted in the OPERATE receptacle on Power
Supply RP-6 before the power plug is connected
to an a-c power source, otherwise "hot" termi-
nals will be exposed and a power line fuse may
be blown.
(2) Connect the two-prong plug of the a-c
cable assembly to any a-c power source whose
voltage is between 70 and 270 volts, and fre-
quency between 40 and 400 cycles. The two-
prong a-c power plug can be adapted to various
receptacles in the following ways:
(a) Vary the spacing between the prongs by
compressing plug.
(b) Prongs can be unscrewed and reversed
to provide any combination of small and large
prongs as required to fit various power outlets.
d. Turn input voltage selector switch on Power
Supply RP-6-XX clockwise to the first position at
which the neon indicating light glows. The trans-
mitter and receiver are now/ready for operation.
e. Do not turn off,the equipment by discon?
necting Jones plug marked AC. This would ex-
pose "hot" terminals. Turn off equipment by
pulling power plug from power source.
f. Refer to Sections II & III of this chapter for ?
detailed transmitter and receiver operation.
2. BATTERY OPERATION HOOK-UP.
a. Turn input voltage selector switch on Power
Supply RP-6-XX (Figure 4) to OFF.
b. Pull sending key out of recess on Trans-
mitter RT-6-XX.
c. Connect equipment as shown in Figure 6
(receiver crystal shown is optional).
(1) Use only a 6-volt storage battery source.
If only an 8 or 12-volt storage battery is avail-
able, connect only across' 6 volts (3 cells) of the
battery. See Figure 6.
(2) The Jones plug marked BAT must be in-
serted in the OPERATE receptacle on Power Sup-
ply RP-6-XX before the battery clamps are con-
nected to storage battery, otherwise "hot" termi-
nals will be exposed and equipment may be dam-
aged.
COVER RETAINING SCREWS
AC INPUT VOLTAGE
SELECTOR SWITCH
S-20I
BATT. CHARGE SOCKET
SO-2
NEON INDICATING LIGHT
E-201
COVER CATCH RELEASE
POWER PLUG, SO-3
OPERATE SOCKET
SO-1
Figure 4. Power Supply RP-6-XX
showing control switch and power plug
3
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_ AC CABLE' AssEmpo
RP 6 XX
,TRANS. ANTENNA
GROUND'
_
CRYSTAL .
RT-6-XX
RECEIVER ANTENNA LEAD
CRYSTAL (OPTIONAL)
USE ONLY WHEN CRYSTAL
,.CONTROL IS DESIRED
EARSET_
RR-6-XX
Figure 5. Radio Station RS-6-XX 'a-C operation hook-up
BATTERY CLAMP'
RED (+6V.)
TRANS. ANTENNA
:,--GROUND
IN ''OPERATE" SOCKET
-
. RP-6-XX RA-6-XX
"BLACK ( 6 V.,),
BATTERY CLAMP
RECEIVER ANTENrsiA LEAD
CRYSTAL
RT-67 X X
..-1-4R1,i,-6X X
CONNECT TO ONLY 6 V. (aCELLS)
8 VOLVBATTERY ( 4 CELLS) SHOWN.
CRYSTAL (OPTIONAL)
USE ONLY WHEN 'CRYSTAL ?
CONTROL ,IS DESIRED. EARSET
-
Figure 6. Radio .iation' RS-6-XX battery operation hook-up
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Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
(3) Connect red battery lead to
the plus 6-volt side of the battery,
and the black battery lead to the mi-
nus 6-volt side of the battery.
d. The transmitter and receiver
are now ready for operation.
e. Do not turn equipment off by
disconnecting Jones plug marked BAT.
This would expose "hot" terminals.
Turn off equipment by disconnecting
clamp from either battery terminal.
f. Refer to Sections'II & III of this
chapter for detailed transmitter and
receiver operation.
3. HAND GENERATOR OPERATION
HOOK-UP
a. Pull sending key out of recess
on Transmitter RT-6-XX.
b. Connect equipment as shown in
Figure 7. (Receiver crystal shown is
optional). Either Hand Generator
GN-58 or SSP-11 may be used.
NOTE: Power Supply RP-6-XX is
not used in this method of operation.
The transmitter and receiver are now
ready for operation.
c. Refer to Sections II & III of this
chapter for detailed transmitter and
receiver operation.
4. BATTERY CHARGING HOOK-UP
& OPERATION
HAND GENERATOR GN-58
(SSP-II MAY ALSO BE USED.)
TRANS. ANTENNA
RECEIVER ANTENNA
LEAD
ANT
CRYSTAL (OPTIONAL)
USE ONLY WHEN CRYSTAL
CONTROL IS DESIRED
a. Only a 6-volt (3 cell) wet type
storage battery can be charged.
(1) The charging rate is 3-1/2 amperes min-
imum.
(2) Battery should be charged only in a well
ventilated room as dangerous gases are formed
during charging process.
b. Connect equipment ts follows: (See Fig-
ure 8).
(1) Turn the input voltage selector switch on
Power Supply RP-6-XX to OFF. (Figure 4).
(2) Insert Jones plug marked BAT in recep-
tacle marked BATT-CHARGE.
(3) Connect red battery lead to the plus 6-volt
terminal of storage battery.
(4) Connect black battery lead to the minus
6-volt terminal of storage battery.
(5) Insert Jones plug marked AC in recep-
tacle marked OPERATE.
(6) DO not connect Power Supply RP-6-XX
power plug to Filter-Accessory Unit RA-6-XX or
fuse will be blown.
(7) Connect the two-prong plug of the AC
cable assembly to any a-c power source whose
voltage is between 70 and 270 volts, and whose
GROUND'
RT-6-XX
CRYSTAL
RR-6-XX EARSET
Figure 7. Radio Station RS-6-XX
hand generator operation hook-up
frequency is between 40 and 400 cps. The two-
prong a-c power plug can be adapted to various
receptacles in the following ways:
(a) Vary the spacing between the prongs by
compressing plug.
(b) Prongs can be unscrewed and reversed
to provide any combination of small and large
prongs as required to fit various power outlets.
c. Turn input voltage selector switch of Power
Supply RP-6-XX clockwise to the first position at
which the neon indicating light glows. Battery is
now being charged.
d. To stop charging process proceed as fol-
lows:
(1) Turn the input voltage selector switch on
Power Supply RP-6-XX to OFF.
(2) Disconnect two-prong a-c plug from power
power source.
(3) Remove battery leads from battery.
5
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BATTERY CLAMP
BATTERY CLAMP
BATTERY
CABLE
ASSEMBLY
CONNECT TO ONLY 6 VOLTS (3 CELLS)
8 VOLT BATTERY (4 CELLS) SHOWN
AC CABLE
ASSEMBLY
POWER PLUG 50-3 MUST NOT BE CONNECTED
Figure 8. Radio Station RS-6-XX battery charging hook-up
Section II. TRANSMITTER RT-6-XX
1. CONTROLS & FUNCTIONS (See Figure 9).
a. OSC BANDSWITCH - Selects desired band
for oscillator.
(1) Blue position - 3 to 7 mc.
(2) Red position - 7 to 16.5 mc.
b. FINAL BANDSWITCH -Selects desired band
for final amplifier.
(1) Blue position - 3 to 7 mc.
(2) Red position - 7 to 16.5 mc.
c. OSCILLATOR TUNING - Tunes oscillator
tank to desired frequency.
(1) Blue scale - 3 to 7 mc.
(2) Red scale - 7 to 16.5 mc.
d. FINAL AMPLIFIER TUNING - Tunes final
amplifier plate tank to desired frequency.
(1) Blue scale - 3 to 7 mc.
(2) Red scale - 7 to 16.5 mc.
e. ANTENNA IMPEDANCE MATCHING
SWITCH - Matches the output impedance of the
final amplifier to the antenna impedance.
f. SENDING KEY - Used for hand-keying trans -
mitter.
6
2. CRYSTAL SELECTION.
a. By using the fundamental (the frequency
stamped on the crystal), second harmonic (two
times fundamental), or third harmonic (three
times fundamental) of crystals of from 3 to 7 mc,
the entire frequency range (3 to 16.5 mc) of the
transmitter can be covered.
b. DO NOT use overmode crystals, nor oper-
ate crystals on fourth or higher harmonics.
3. ANTENNA LENGTH & HEIGHT.
^
a. The length of the quarter wave "L" antenna
for a given frequency can be calculated from the
following formulas:
L (feet) u 234
fr eq (megacycles)
L (meters) = 0.238 x wavelength
b. The antenna should be as high as possible.
4. GROUND CONNECTION
Connect the terminal marked GND to a metal
member buried in moist earth (water pipe, gas
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CONNECTOR RELEASE
BUTTONS
J-102
ANT. GND.
TERM. TERM.
ANTENNA IMPEDANCE MATCHING SWITCH
S-103
ANT. OUTPUT INDICATOR
E-103
FINAL BANDSWITCH
S-102
FINAL AMP NEON TUNING INDICATOR
E-102
HIGH SPEED KEYING JACK
J-101
CRYSTAL SOCKET
X-101
PL-5
0WER PLUG
OSC TUNING 0-105
pipe, or ground stake).
FINAL AMPLIFIER TUNING
C-112
OSC. NEON TUNING INDICATOR
E-101
Figure 9. Transwitter RT-6-XX showing control locations
5. TUNING (Refer to Figure 9).
a. Plug a crystal into the socket marked CRYS-
TAL. Its fundamental operating frequency must
be either:
(1) The same as the desired broadcast fre-
quency (fundamental operation),
(2) One-half the desired broadcast frequency
(2nd harmonic operation), or
(3) One-third the desired broadcast frequency
, (3rd harmonic operation).
b. Set the oscillator and final band.switches to
the desired broadcast frequency. Both switches
must, be set to the same color.
(1) Blue position covers frequencies from 3
to 7 mc.
(2) Red position covers frequencies from 7
to 16.5 mc.
.c. Set oscillator and final amp tuning dials as
closely as possible to the desired broadcast fre-
quency. Both dials must be set to the same color
scale.
(1) The dials are calibrated in megacycles.
(2)' The 3 to 7 mc markings are in blue.
(3) The 7 to 16.5 mc markings are in red.
d. Set RECVR-TRANS switch on the Filter
Accessory Unit RA-6-XX to TRANS. (See Fig-
ure 10).
COVER CATCH RELEASE
OSC. BANDSWITCH
S-101
SENDING KEY
K-101
CONNECTING CORDS
a ACCESSORIES
HOUSED HERE
COVER RETAINING
SCREWS "A"
SO-5
TO
TRANSMITTER
PL-3
TO
POWER SUPPLY
SO-6
S-301 TO
RECVR-TRANS SWITCH RECEIVER
Figure 10. Filter-Accessory Unit RA-6-XX
showing RECVR-TRANS switch
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e. Turn antenna impedance matching switch to
TUNE (zero). This disconnects the antenna and
reduces, radiation to a minimum while tuning up
transmitter.
f. Press sending key and retune final amp tun-
ing dial slightly to obtain distinct increase in
brilliance of FINAL TUNE FOR MAX indicator.
Release key.
g. Press sending key and retune osc tuning dial
slightly to obtain distinct increase in brilliance of
OSC TUNE FOR MAX indicator. If pronounced
brilliance peak is not noted on indicator (as may
be the case when using third harmonic of crystal)
repeak oscillator tuning dial for peak brilliance
of FINAL TUNE FOR MAX indicator. Release
key.
h. Press sending key down and turn antenna
impedance matching switch to position where ANT
ADJ MAX indicator glows brightest. Release key.
i. Press sending key down and retune final amp
tuning dial slightly for peak brilliance of ANT
ADJ MAX indicator. Release key.
6. KEYING.
a. The transmitter is keyed:
(1) by the sending key. (Figure 9),
(2) by plugging the automatic high-speed keyer
in KEY JACK (Figure 9), or
(3) by inserting frequency shift unit in the
crystal socket for frequency shift operation.
b. The transmitter is ON when the sending key,
is folded into the recess on the front panel. The
key must be in this position for automatic keying
through the KEY JACK or for frequency shift op -
era.tion.
Section III. RECEIVER RR-6-XX
1. CONTROLS & FUNCTIONS (See Figure 11)
a. VOLUME - Controls volume of received sig7
nals.
b. RANGE - Selects proper frequency band.
(1) Blue position - 3.to 6.5 mc.
(2) Red position - 6.5 to 15 mc.
c. TUNING - Quickly sets oscillator and r-f
tuned circuits to any point within receiver fre-
quency range.
d. VERNIER TUNING - A finer control of the
large TUNING dial.
e. PRESS TO CALIBRATE - Provides crystal-
controlled frequency for dial calibration every
0.5 megacycle (500 kc).
8
f. ADJUST CALIBRATION - Corrects error in
dial calibration by Moving indicator hairline with
respect to dia'1 scale. -
g. BFO - Turns 455 kc oscillator on & off and
varies pitch of audio signal produced.
2. CALIBRATING THE TUNING DIAL
A signal generated by a crystal-controlled os-
cillator in the receiver offers a means of check-
ing the accuracy of the frequency read on the dial.
By means of harmonics, the 500 kc crystal pro-
vides signals in 500 kc steps throughout the dial.
Thus, eachmegacycle mark and each half-mega-
cycle mark become a calibration point. To cali-
brate dial, proceed as follows:
a. Set RECVR-TRANS switch (Figure 10) on
Filter-Accessory Unit RA-6-XX to RECVR.
b. Hold down button marked PRESS TO CALI-
BRATE.
c. Turn the BFO dial until zero is aligned with
the white mark on the housing.
d. Turn VERNIER TUNING until zero beat is
heard. NOTE: Zero beat is the no sound point
between the two sound peaks.
e. When setting the receiver to a desired fre-
quency, first turn ADJUST CALIBRATION (Fig-
ure 11) until the hairline coincides with the clos-
est calibration point.
3. TUNING (Variable)
a. Set RANGE switch (Figure 11) for proper
frequency band - "red" for high band (6. 5 to 15
mc) and "blue" for low band (3 to 6. 5 mc).
b. The dial scale is calibrated directly in meg-
acycles. Use the red scale for high band (6.5 to
15 mc) and blue scale for low band (3 to 6.5 me).
c. Tune stations with the TUNING (coarse)
control, or for more precise adjustment use
VERNIER TUNING, always tuning in from the low
frequency direction to eliminate any error from
slack in the tuning system.
d. Calibrate dial on the nearest megacycle or
half-megasycle ? calibration point as directe8 in
previous paragraph. Turn BFO dial until zero is
aligned with the white mark on the housing before
calibrating dial. NOTE: For a-m (voice) recep-
tion, turn BFO clockwise to OFF.
e. Set dial to desired frequency and then re-
tune slightly, if necessary, for best reception.
4. TUNING (Crystal)
a. Plug specified crystal in CRYSTAL CON-
TROL socket Figure 11). NOTE: Oscillator fre-
quency is 455 kc higher than the received fre-
quency.
b. Tune receiver to working frequency and
proceed as above.
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5. LOG SCALE
a. Signals may be accurately logged to, three
figures through the use of the LOG SCALE.
(1) After station is accurately tuned in, note
the position of the white horizontal line with re-
spect to the numerals 0,1, 2 located to the left of
the dial scale opening. These numerals repre-
POWER PLUG
PL-6
sent the first digit of the,log scale.
(2) Read and record the numeral located im-
mediately above the white horizontal line on the
window fcir the first digit. Read the other two
digits on LOG SCALE.
(3) Once a, station is logged in, the tuning dial
may be re-set by these numbers for future loca-
tion of that station.
CONNECTOR RELEASE BUTTONS
J-1 _CANT. TERM.
GND. TERM.
PHONES CONNECTOR
J-2
VERNIER TUNING KNOB
CRYSTAL CONTROL
SOCKET -
VOLUME CONTROL
LOG SCALES
INDICATOR HAIRLINE
RANGE SWITCH
S-1
TUNING DIAL
PRESS TO
CALIBRATE BUTTON
BFO CONTROL
CALIBRATION ADJUSTMENT KNOB
Figure 11. Receiver RR-6-XX showing control locations
9
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
CHAPTER 3
MAINTENANCE?
Section I. RECEIVER RR-6-XX
1: CIRCUIT DESCRIPTION (See schematic, Fig-
ure 12)
Receiver RR-6-XX is an eight-tube superhet-
erodyne, two-band receiver. The incoming sig-
nal is amplified by a 5899 tuned r-f stage (V-1)
and is transformer coupled to the mixer grid.
The transformer has both mutual and capacity
coupling. The 5899 local oscillator (V-2) is a
tuned plate type when used as a variable oscilla-
tor and is a Pierce electron coupled type when
used with crystal control. The plate tank then
tunes to the desired harmonic. In the normal po-
sition, it is a variable oscillator. It is converted
to crystal control by inserting the crystal into the
socket (X71). A? switch in the socket automati-
cally makes the necessary circuit changes.
Oscillator injection is accomplished inductively
by small coupling loops on the oscillator and r-f
transformer coil forms. Very loosely coupled
double-tuned i-f transformers (T-7, 8, & 9) op-
erating at 455 kc are used; the primaries of T-8
& T-9 are center-tapped to reduce plate loading
and the combination results in a very narrow band
xleceiver. The mixer i-f transformer (T-7) pri-
mary tap is not used because of the need for ef-
fective bypassing of the high frequencies. Two
i-f stages (V-4 & 5) are used, not so much to
achieve gain, but to obtain selectivity. Large
unbypassed cathode resistors (R-13 & 18) are
used in the i-f stages in order to reduce the gain,
to a usable value.
Plate detection is used in-the 2nd detector (V-6)
in order to reduce loading of the 3rd i-f -trans-
'former (T-9) and there12ymaiutain utmost selec-
tivity. An i-f filter consisting of R-23 (56K),
C-39 (.001), and C-40 (56 mmf), is in the plate
of the 2nd detector to prevent i-f energy from
getting into the audio amplifier. Capacitor C-40,
in conjunction with C-51, also controls the feed-
back for the 500 kc crystal calibrator.
10
By means of a capacity probe, a signal from a
Hartley BFO stage (V-8, 5718) is injected into
the detector grid. This signal mixes with the
455 kc i-f frequency and produces an audio beat
in the output of the second detector. The audio
beat-is applied to theaudio amplifier (V-7, 5718)
and reaches the headphone. When the BFO is
turned off, C-49 is shorted out and-the frequency
of the tank is lowered to approximately 400 kc,
which is far enough away in frequency to be re-
jected by the i-f amplifier. Any signal which does
get to the detector produces a beat outside the
audio range. , With the BFO "off" the receiver
can operate on a-m signals. The frequency of the
BFO is changed rather than turning it off in order
to provide the negative d-c voltage required by
the volume control. A germanium crystal detec-
tor (CR-1) in the BFO stage rectifies part of the
oscillator tank voltage and the rectified voltage
developed across R-28, the VOLUME control, is
used to vary,the bias of the r-f and i-f stages.
The audio output stage, V-7, is also used as a
500 kc, crystal-controlled oscillator to provide
an accurate signal for checking the calibration of
of the dial. Sufficient harmonics are generated
to provide 500 kc check points throughout the two
bands. The stage is converted to a Pierce-type
oscillator by the PRESS TO CALIBRATE button,
which connects the crystal (Y-2) between the grid
and plate. The signal is fed back to the r-f end
of the receiver by a capacity probe.
2. ALIGNMENT
a. Equipment Required
(1) AM,signal generator having:
(a) accurately calibrated, adjustable output
(3) 400 cycle, 30% modulation. NOTE: The
generator should be checked against an accurate
wavemeter for correct frequency.
(2) Output power meter, GR type 583-A or
equivalent.
(3) Non-metallic screwdriver with 1/8" blade
(for i-f transformers)
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
1-/6O/O eseeiej -10d panaiddv pue Pe!PsseloeCI
9-6900?1,00LOOOVS?9?0-8LdCl-V10
.... 5 , 6 - I ?
4-CAPACITY PROBE TO INCREASE RADIATION OF THE CALIBRATING CRYSTAL
C 11
-/.., V LO
VI -I. 9 V HI. V3
RF 6.r0.0 ITC) 5899
5899
MIXER
JI r T
5
AND ANT /
/, I 4
. C9A_IL _125 ?
/
LF 700e
EaF
, ii t
c F
40 HE 0 4 120*
'Ili 1-74.,(1.21)
00" SW)
SI(S)
A 5 2 CIOn
.4
IN R2
At 680
Na
2
. 100
5
V9 V5
5899
2ND IF
5899
1ST IF
17 51 I TB
IF
PAW
V6
5718
DET
JAW 566
R23
001 MF 56
C3F C4
6 3
\X
86,
VI
DIAL
12
If
BLK
DOT
5 2
.0, MF
4708{ TI2
CONTROLF111-1 C3
CRYSTAL
Oli PrIL
xTAL
POSITION *4"
TI4
FIE U
SI(5)
Fr3MEG
1U,
.OF
MF
C34,
RED DOT
RIS
WA
561(
RI6
6800
T1,12,13,19
T5 13 16
CONNECTIONS
COLOR
1 DOT
6 2
5
.01 MF 2,0
.014F .11F
569
Am.
820
.O4 MF 4701<
C321
1,741( CONNECTIONS
4=4
184,
100
2207 L F
LIR c, Ril
7 R4
6800
NW. ? L561* 4i[k?ii 1?K TAY .r5
po
I 1
5 LI o
-L
HE CIT T9i
SI SI 2
(3) (4) ,00,21/3 c5--
C2OT I 4.
6
RI X27
561 v2 ?
5899 T7
OSC
e
Ar,170 :Tc)
GRN DOT
_1_111 1 T6
noo
0181 31-
(3) (5)
JKLM* RSTUM*
Willi I %
. 55ifiFfs?g55,114iii ? ? .
000! 0 0 00000 000000
t;Gri * NOPO*
(Al ,(4)
*..DUMMY LUG
SI CONNECTIONS
(SWITCH SHOWN IN LF POSITION)
VWXYKK
START
BFO a BIAS SUPPLY
V8
Eel; 5718
8F0 6800
.01
047( 10
I
C50 31042 83,
100_ II K 100
,
TC4T:
TAP
L2 i SHORTING-I
I TYPE VAR
I CAP
L 73: OiNISH
052
F
V7
5718
TIO AUDIO Y2
52
XTAL
BIS! F .011
YEL
PHONES o
27 0,483,
500 XC
PRE0S5
632 J2
751 8 CALIBRATE
GRN
-4-
.01 MF
x -Ia42
270k Mc 22
R30
4.84W
RED
2R7U
0-41:E8G
I3 Cv&
R3 T
4701C ?
9, I
I-CAPACITY PROBE FOR IVO INJECTION INTO 2ND DET
YEL
PL6
NOTE
ALL CAPACITORS ARE IN MMF UNLESS
OTHERWISE INDICATED.
VOLTAGE READINGS TAKEN WITH. vOLTOHMYST BETWEEN
POINT INDICATED AND CHASSIS WITH VOL CONY AT MAO,
BM AT ZERO, AND NO SIGNAL INPUT.
ANT.
GD.
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
PHONES
CONNECTION
VOLUME
. CONTROL
R-28
RANGE
SWITCH
S-I
PRESS TO
CALIBRATE
BUTTON
T-7
(PRI.)
1-8
(PRI.)
T-9
(PRI.)
BFO
COVER
PLATE
IF
COVER
PLATE
1-9
(SEC.)
T-8
(SEC.)
Figure 13. Receiver RR-6-XX top & bottom views showing alignment adjustaent locations
(4) Small size screwdriver to fit antenna,
r-f, and oscillator transformers.
(5) Medium size screwdriver with blade
ground to fit trimmer slots without play. Blade
should not ride in bottom of slot.
b. Procedure
(1) Connect the equipment, as directed in
Chapter 2, Section I (do not connect phone, as
the output impedance will be reduced by one-half).
(2) Set RECVR-TRANS switch on Filter-Ac-
cessory Unit RA-6-XX to RECVR.
(3) Expose bottom alignment adjustments as
follows (see Figure 13):
(a) i-f - slide cover plate to right.
(b). bfo - turn cover plate counterclockwise.
(c) r -f - remove two screws and cover plate
(4) Connect the Output meter across the phone
terminals J-2. Set the "ohms" knob to 40 and the
impedance multiplier to 100. Set the meter mul-
tiplier to 1.
NOTE: Throughout the alignment proce4ure,
reduce the generator output to a level which pro-
duces about 5 mw output indication 9n the output
meter to avoid overloading the receiver.
(5) Remove the top cover and turn VOLUME
control to maximum volume.
(6) Refer to Figure 13 for adjustment loca-
12
tions.
(7) Remove glyptal from the cores and trim-
mers in the r-f section with thinner.
c. IF Alignment
(1) Connect the AM generator to the grid of
the mixer (pin 1, V-3 - See Figure 14 -RF panel
front view) and set it to 455 kc with 400 cycle,
30% modulation.
(2) Set generator output high enough to give
about 5 mw output on the meter.
(3) Tune the primaries and secondaries of
T-9, T-8, & T-7 for maximum output on meter.
(See Figure 13).
(4) The i-f sensitivity is normal if a gener-
ator output of 50 microvolts or less produces 5
mw output.
d. BFO Alignment
(1) With equipment connected as above, turn
off generator modulation, and set BFO dial to
zero. (The zero on the dial should be at three
o'clock when viewed as in Figure 13).
(2) Adjust bfo coil (L-2) for zero beat.
(3) After alignment of bfo, apply glyptal to
the slug.
e. RF Alignment
(1) Replace top cover Which was removed
during i-f alignment, and place receiver on side.
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
(2) Connect generator to the ANT-GND ter-
minals (J-1). Use a 270 ohm carbon resistor
(dummy antenna) in series with the antenna ter-
minal.
NOTE: This value is for a 30-ohm generator.
If generator output impedance is other than 30
ohms, subtract the generator impedance from
300 ohms for the correct value of dummy antenna.
(3) Turn BFO dial to OFF.
(4) ?Set low-band trimmers C-I0, C-16, &
C-26 so that screwdriver slots are parallel to
the long edge of the compartment. This repre-
sents the mid-capacity positions.
(5) Turn the TUNING dial clockwise until it
reaches the end stop (low frequency end). Then
turn the VERNIER counterclockwise slightly to
take up any motion in the drive.
(6) Turn ADJUST CALIBRATION knob until
hairline passes through the approximate center
of the circle at the bottom of the dial window.
(7) Set the generator frequency at 3.5 mc and
the generator output at 100 microvolts, with 400
cycle, 30% modulation.
(8) Set RANGE switch to "blue" position (3 to
6.5 mc).
(9) Set the receiver tuning dial at 3.5 mc.
(10) Tune the oscillator slug in T-5 for max-
imum output on the meter.
CAUTION: Do not turn slug too far into the
coil; when turning becomes difficult, do not force,
as damage to terminal assembly may result.
NOTE: For final adjustment of slug, reduce
the generator output until a receiver output of 5
mw is obtained.
(11) Tune the slugs in T-1 (antenna), T-3
(r-f), and T-5 (oscillator) for maximum output.
(12) Set receiver and generator dials at 6.0
mc.
CAUTION: There will be two generator fre-
quencies which will produce an output indication.
One will be near 6.0 mc and the other, the image
frequency, will be 0.91 mc higher. The lower
one is the correct alignment frequency.
(13) Adjust oscillator trimmer (C-16) and
antenna trimmer (C-10) for maximum output.
(14) Since the r-f trimmer (C-26) has some
pulling effect on the oscillator, it will be neces-
sary to find the true resonant frequency of the
r-f tank by a "rocking" procedure as follows;
(a) Note output reading on meter.
(b) Turn r-f trimmer (C-26) slightly coun-
terclockwise until the output drops approximately
one-third to one-half.
(c) Readjust oscillator trimmer (C-16) for
maximum output.
(d) If maximum reading is higher than that
in step (a), repeat steps (a), (b), & (c), until the
highest output is obtained. Lower the generator
output as required to keep the output around 5 mw.
(e) If in step (d) the maximum reading is
lower than that in step (a), it indicates that the
r-f resonance has been passed. In this case, re-
peat steps (a), (b), (c), & (d), turning r-f trim-
mer (C-26) clockwise instead of counterclockwise.
(15) After the true r-f resonance has been
fciund, recheck the 3.5 mc alignment of T-1, T-3,
& T-5.
(16) If, while rechecking the .3.5 mc align-
ment, it was necessary to move any of the slugs
(T-1, T-3, T-5), recheck the 6.0 mc alignment.
NOTE: Due to the extreme accuracy desired in
this receiver, it is well to recheck the 3.5 mc
and 6.0 mc alignment three times. After the first
alignment the r-f resonance should be close
enough to the true resonance so that only the os-
cillatox trimmer and slug need be re-adjusted.
(17) After the low band has been accurately
aligned, apply glyptal to the low-band trimmers
and slugs.
(18) Set RANGE switch to "red" position (6. 5
- 15 mc).
(19) Set receiver & generator dials at 7.0 mc.
CAUTION: Check for image frequency as in
step 12.
(20) Turn trimmers C-11, C-17 & C-29 so
that slots arc parallel to long edge of compart-
ment.
(21) Tune oscillator slug in T-6 for maximum
output.
CAUTION: Do not force slug into the coil.
(22) Tune T-2, T-4, & T-6 slugs for maxi-
mum output.
(23) Set the generator and receiver dials at
14. 5 mc.
(24) Adjust oscillator trimmer (C-17) and
antenna trimmer (C-11) for maximum output.
(25) Repeat "rocking" procedure as in step 14
to find the true resonant frequency of the r-f tank.
In this case, however, adjust r-f trimmer C-29,
and oscillator trimmer C-17.
(26) Repeat 7.0 & 14.5 mc alignment three
times.
(27) Replace glyptal on trimmers and slugs.
(28) The set when properly aligned will have
a sensitivity on both bands of less than 10 micro-
volts for 5 milliwatts output.
f. Alignment by Crystal
The receiver may be aligned in the field by
replacing the a-m signal generator with the radi-
ated signal from the calibrating crystal and by
using the phone as as output indicator. The align-
ment procedure is the same as with the genera-
tor except that the bfo is turned on.
If aligned on the image, the dial calibration
will be off, and large sensitivity variations will
be noticed over the band. Aligning on an image
or wrong harmonic of the crystal will result in
an abnormal position of the coil slugs and trim-
mers. The slugs normally extend 1/16" to 3/16"
beyond the end of the coil base. The slots in the
trimmers are normally less than perpendicular
to the long edge of the compartment. A slot per-
pendicular to the long edge would very likely in-
dicate that the set is misaligned.
13
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
R?F PANEL
ASS EM
FRONT VIEW
1ST I?F AMP
PANEL ASSN
FRONT VIEW
DETECTOR
AUDIO PANEL
ASS EM
S-2
J-1 R-28 C-7 L-1 C- 0 R-9 R-5
RF
R-2 X-1 5899
V-4
1ST IF AMP
5899
V-6
DET
5718
V-2, OSC. V-3, MIXER
R-7 R-3 R-i R-4 5899 5899
R-14 R-13
V-7
AUDIO OMP
571 8
C-35
FRONT VIEW
C-51
C-41
C-38
R-22
R-23
C-34
R-27 R-26
1ST I?F AMP
PANEL ASSEM
REAR VIEW
C-43 R-24
R-32
C-33
C-40
R-25
REAR VIEW
Figure 14. Receiver RR-6-XX showing
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
R-12 R-10 R-8 6-13 6-14 R-6 0-2 R-28
6-31 6-32 6-22 6-3
2ND I ? F AMP
PANEL ASSEM
FRONT VIEW
V-5
2ND IF AMP
5899
panel assembly parts locations
R 19
R 20
,
R-31
C-50
C:47
C-45
C-52
6-44
R-18
R.4 PANEL
\ ASSN
REAR VI EW
C 36 2ND I ?F AMP
PANEL MEM
REAR VIEW
R 21
L-2
BOTTOM
C-48 R-33
BFO
PANEL
ASSN
TOP
&
BOTTOM
VIEWS
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
I
15
J.1
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
T-2 0-12 C-5 0-10 * T-I G-6
G-Il
R?10
2-1
V-I
RF AM
511_.99
1-6
V-6 (BOTTOM)
DETECTOR
5719
*DETECTOR
a AUDIO PANEL
ASSEMBLY
RF PANEL*
ASSEMBLY
V-2
056
5919
MIXER
5999
1-5
AUDIO AMP
5719
52
910 PANEL
ASSEMBLY
9-? *1ST
I ST IF AMP PANE
5099 A95EM9 Y 1-71
*SEE FIGURE 14 FOR LOCATION OF PARTS ON PANELS.
V-5
END IF AMP
5999
*2m IF
PANEL
ASSEMBLY
1-9
C-ER
1.5
* SEE FIGURE i? FOR LOCATION OF PARTS ON PANELS
Figure 15. Receiver RR-6-XX top views shoving parts locations
3. DISASSEMBLY & REASSEMBLY OF DIAL
SCALE MECHANISM (Refer to Figure 16)
a. DISASSEMBLY
(1) Turn ADJUST CALIBRATION knob (C) in
direction to move spring clamp (D) over as far
as possible. ?
(2) Push arm (A) back, lift frequency chan-
nel indicator (B) up at large end, and slide out of
spring clamp (D). Release arm (A) gently until
it comes to rest against spring clamp (D).
(3) Remove screws (3) and remove assem-
bly consisting of (A). (C), (D) & (L).
(4) Remove three screws (K).
(5) Push vernier (E) in direction indicated
until it clears dial. Hold it in position until dial
scale has been-removed.
(6) As dial fits snugly on hub, remove it by
lifting straight up.
(7) Allow vernier to swing gently counter-
clockwise as far as it will go.
b. REASSEMBLY
(1) Swing vernier clockwise against its tor-
sion spring and hold until dial is replaced. -
(2) Replace dial, placing pin in hole (F).
(3) Release vernier gently until it rests
against the dial.
16
Figure 16. Disassembly of Receiver RR-6-XX dial mechanism
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
101
EXTERNAL
zTAL
F113-1
0 X101
C103
k 100K
R 101
V FOl
6505
05C
.
33 297
I A
C102
3 4
100
,1.0 MF
10,
68K
1R102
560
C104
8V
LR 101
OSC
TUNING /7
7-..` C105
1OSC
TUNING
IND
E101
L101
HF ? LF
0,AF
5101
0106 33K
2/5V 6105
336
22
C107
I.5
MEG
6106
68 ,
6103
V 102
2E26
RF PWR AMP
IC
RFC
000
L 102
3 _ 2/0 V
27K
6107
I, 4
86
.01 MF
16108
160V
6104
C110
FINAL
AMP
TUNING
RFC
103
2 CII3
FINAL AMP
TUNING
112 OPEN
I
DISTRIBUTED
CAPACITY L104
HF
5
2 5
.11
5102
LF
12
RI 10
J102
1,
?
3
103 2
LIDS
ANT
OUTPUT
1NO
E103
ANT
I
GND
LJ
' C111
226
6109 ?
,NOTE: VOLTAGE MEASUREMENTS TAKEN TO GROUND
USING A 20,000 OHM/VOLT METER AND ARE DC,
KEY IS DOWN, AND 3MB XTAL IS USED.
HS
3 JACK
0
KEY f KEYING
6101 \?17.?. CONTACTS ONLY
WHEN KEY IS
J 101
FOLDED IN CASE '
400V
.-RED
POWER
PLUG
PL5
Figure 17. Transmitter RT-6-XX schematic diagraa
(4) Replace screws (K).
(5) Replace assembly consisting of (A), (C),
(D) and (K) and screws (J).
(6) Turn dial until tuning capacitor is fully
meshed.
(7) HOld arm (A) back and insert end of fre-
quency channel indicator (B) into spring clamp
(D) and push it down until the white line (G) falls
over the line between the top two scales on dial.
(8) Engage pinion gear (H) with rack gear
teeth on rear of frequency channel indicator (B).
(9) Make sure rivet shoulder (M) rests-on
top of frequency channel indicator (B).
Section II. TRANSMITTER RT-6-XX
1. CIRCUIT DESCRIPTION (See Schematic, Fig-
ure 17)
Transmitter RT-6-XX is a two-stage, crystal-
controlled, CW transmitter. It has two bands
TUNE TUNE
ANTENNA
IMPEDANCE
MATCHING
SWITCH
with variable capacitors providing tank tuning.
Cathode keying is employed in the 6AG5 modi-
fied Pierce electron-coupled oscillator stage.
In additionto hand keying, a high-speed keyer can
be connected to the keying jack for transmission
speeds up to sixty words per minute. C-101
(1 mf) and R-102 (68K) form a keying filter to
properly shape the keyed character and elimi-
nate "clicks".
L-102, in the plate of the power amplifier, and
R-103-(68), in the grid of the oscillator, are par-
asitic suppressors.
A five-position rotary switch provides a range
of output impedances for maximum antenna out-
put. Each position doubles the impedance of the
previous position from 75 ohms on 1 to 1200 ohms
on 5. An incandescent bulb, E-103, serves as an
output power indicator.
The resonant frequency of the oscillator and
final amplifier plate tanks is indicated by the
maximum glow of two neon bulbs, E-101 and
E-102, respectively.
17
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
PL- 5
, 1103
C-105
R-106
E-101
8-105 R-109
J-101
S-101
K-101
E-103
J-102
S-102
1-101
V-102
'FINAL AMP
2E26
C-113
C-111
oltsiloi1111111111111111
E 102
C 112
1-102
1J11111110111191 1111%4
0-104 C-102 R- 01 R-102 LR-101 R-107 8-108 0-108
K-101
L-101
S-101
1-103 0-103 R-104 S-101 X-101 0-107 8-103 1-102 J-101 E-102 9-102 E-103
V-102
FINAL AMP
2E26
C-111 1-102 L-102 0-110 0-112
0-106
V-101
OSC
6AG5
C 101
' I unnummut',
IP 0
-
) - Um] nommini
'litt ...,?,--- '
-;. t? elilli,;1411
411044-41
L-103
PL-5 0-104 0-1
2 R-101 R-102 C-107 LR-I01 R-103 R-107 R-108 0-108 J-I01 E-103 S-102
Figure 18. Transmitter RT-8-XX parts location
L 105
-104
S 103
J-102
R 110
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
OFFo
270 o
7201
23qo
190o
150o
S201
120
95o
VI
GRNRED
08 ?
9
RED 405iV AC
.0061MF
0 R C201 1600V
- ?
_.E..006MF
? C2O2 1600V 6
1
,405 V AC
V201
RECT
6X4
4 WH
4/5 V
BLU
POWER
PLUG
, SO3
FIL NL
6.5V AC
709
R201
100K
012 /5,5V AC OR
?-,
03 10:3V AC BLK
c>
c, 14 6.5V AC WH
15 .3 V AC R203
120)
CONNECTIONS
L. 201
6'0 P-?
R202
100K
L202
1-1/2 AMP
.02 MF
C20E'
G201
VIBRATOR
10
12
15
14
9
11
5
16
17
OPERATE
TAN
.0.11L1E
C204T
F 202 31
204, 6
8. BATT
R._ CHARGE
15 AMP GRN IRED RED
4ICR201.
-
' NOTE: VOLTAGE MEASUREMENTS TO GROUND USING A 20,000 OHM/VOLT METER AND ARE DC
UNLESS OTHERWISE SPECIFIED.
AC OPERATED.
BATTERY CHARGING
CONNECTIONS
(SO3 MUST BE DISCONNECTED)
SOI
SO2
OPERATE BATT CHARGE
AC TO 6V
INLET BATTERY
PL1
2
'3
6-8
I I
- 5 7
PL 2
BATT CLIPS
Figure 19. Power Supply RP-6-XX schematic diagram
Section III. POWER SUPPLY RP-6-XX
1. CIRCUIT DESCRIPTION (See Schematic Dia-
gram, Figure 19)
a. AC - An eight-tap primary on the trans-
former provides for a Wide range of input volt-
ages at frequencies from 40 to 400 cps. The
secondary voltage is rectified by a full-wave
rectifier tube (6X4) and passed on to the Filter-
Accessory Unit RA-6-XX.
b. Battery - The 6-volt dc is converted to ac
and stepped up by the vibrator and transformer:
It is rectified by a type 6X4 rectifier tube and
passed_ on to Filter-Accessory Unit RA-6-XX.
L-201, L-202, C-203,_ C-204, C-205 and the
ground strap serve as hash suppressors.
c. Battery Charging ?A tap on the low voltage
winding of the transformer provides a suitable
voltage for charging a battery by means of a full-
wave _selenium rectifier (CR-201), which is con-
tained in the unit. The charging rate is 3.5 amps
minimum.
2. HOW TO REPLACE VIBRATOR
a. Loosen nut shown in Figure 20.
b. Tilt chassis up as shown and remove vibra-
tor.,
3. HOW TO REPLACE POWER TRANSFORMER
(See Figure 21)
a. Disconnect all leads from transformer ter-
minal strips.
b. Remove hex spacer nuts (A, Figure 21).
c. Lift out transformer.
19 -
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
TILT
CHASSIS AS
'SHOWN TO
PERMIT
REMOVAL OF
VIBRATOR
0
REMOVE THIS NUT
BEFORE LIFTING
OUT CHASSIS
COVER
CATCH
RELEASE
Figure 20. Power Supply RP-6-XX vibrator replacement
Section IV. FILTER-ACCESSORY RA=6-XX
1. CIRCUIT DESCRIPTION (See Schematic Dia-
gram, Figure 22)
a. AO Operation - The Filter-Accessory Unit
RA-6-XX filters the dc from the power supply
and delivers it to the transmitter and receiver.
Two 5644 (or 5787) voltage regulator tubes pro-
vide regulation for the receiver supply. The fil-
ter unit provides four output voltages.
(1) 6.3v ac at 2.4 amps for filaments.
(2) 400v dc at 75 ma (unregulated) for the
transmitter.
(3) two 90v dc at 25 ma (regulated) taps for
the receiver.
The B supply for transmitter or receiver is
chosen by a DPDT switch marked RECVR- TRANS.
b. Battery Operation - Filter-Accessory Unit
RA-6-XX performs the same under battery oper-
ation as under ac. The output voltages are also
the same except that the filament voltage is dc
instead of ac and is furnished by the battery.
' c. Interlock - An interlock is provided by the
plug connections to avoid damage to the rectifier
or input filter capacitor should the input power
be applied when no load is connected to the power
20
1-201
G-201
S-201
SO-2
V-201
RECT
6X4
E-201
CR-201
SO-3 R-204 R-203 L-201 0-203
F 202
F-201
SO-1
0-201
C 202
Figure 21. Power Supply RP-6-XX parts location
supply output.
If the power is applied to Power Supply RP-6-XX
alone, both the filaments and cathode of the rec-
tifier are open due to SO-3 being disconnected.
If only Filter-Accessory Unit RA-6-XX is con-
nected to the power supply, there are two condi-
tions possible:
(1) With the toggle switch set at TRANS, the
rectifier filaments are connected but the cathode
is opcn due to SO-5 being disconnected.
(2) With the toggle switch set at RECVR, the
rectifier cathode is connected to the input filter
capacitor but the filter output is connected to the
voltage regulator stages, and the load is suffi-
cient to keep the voltage across the input capaci-
tor at a safe value.
2. HOW TO DISASSEMBLE
a. Remove two flat head screws from bottom
o housink.
b. Remove three screws on cover (A -Fig-
ure 10).
c. The chassis can then be lifted from the
housing and serviced without disconnecting the
choke leads.
d. To remove - choke, remove two binderhead
screws on bottom of housing, and lift out.
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
415V GRN
4/5V
RED'?
1.5 MF 1.5 MF 1.5 MF 1.5 ME
?
TC 30-1-16 Arc 304.6
GRN
RED3
RED;
o6 RED
TRANS
SOS
?2 (13
6.
REoi-L-1"
F1101?
S301
R301
8000
R305
1 MEG
R302
4000
R303
8000
R304
4000
90V
PL3
POWER -
SUPPLY
GND STRAP .TO
POWER SUPPLY RP-6
11
S301
CONNECTIONS
5
3
2
0 0 0
0 0
6
4
V301
5644
OR
5787
REGULATOR
6.3V A.C. BRN
V302
5644
OR
5787
REGULATOR
NOTE: VOLTAGE MEASUREMENTS TAKEN TO GROUND USI NG A
20,000 OHM/VOLT METER AND ARE DC.
RECVR
SO6
Figure 22. Filter-Accessory Unit RA-6-XX schematic diagram
GROUND STRAP F-302
F1L-1
F-301 C-302 A a B
V-301
VOLTAGE REG
5644 OR 5787
R-304
R-302
PL-3
V-302
VOLTAGE REG
5644 OR 5787 C-301A a B
S-301 50-6 SO-5
Figure 23. Filter-AccessorY Unit RA-6-Lt parts location
W-301
W-302
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
4639118-0
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Section V. PACKAGING
1. HOW TO REPLACE UNITS IN PLASTIC
POUCH
a. When not in use, or when transporting, the
units should be kept in the plastic pouches pro-
STRAP
UNIT IN
POSITION
BRING INSIDE EDGES
OF FLAP TOGETHER.
STRAP
vided, as shown in Figure 24. The pouches are
Nif-aterproof, if folded in the prescribed manner.
b. There are two sizes of pouches -two large
ones for Transmitter RT-6-XX & 'Receiver
RR-6-XX and two small ones for the Power Sup-
ply RP-6-XX and Filter-Accessory Unit RA-6-XX.
All are used as shown in Figure 24.
22
OINSERT UNIT INTO
WATERPROOF POUCH.
O
BEND FLAP OVER 1/2"
AND FOLD TIGHT
Figure 24. Packaging detail .
\
ri) DRAW STRAP OVER
'\?Li? FOLDED EXCESS
MATERIAL OF POUCH
AND SNAP IN PLACE.
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
?
.
Declassified and Approved ForRelease2013/09/11 : CIA-RDP78-03535A000700130059-5
' CHAPTER At
REPLACEMENT PARTS LISTS
Section I. RECEIVER RR-6-XX
Contractor's
Ref.
Drawing &?
No.
Part Number
Jan Type
Description
C-1
921R121
CC3OSL470K
,
CAPACITOR, FIXED,CERAMIC DIELECTRIC: tubular type;
C-2
921R107
CC2OSL220K
47 mmf +10%; 500 vdcw ,
CAPACITOR?, FIXED, CERAMIC DIELECTRIC: tubular type;
-22 mmf +10% 500 vdcw
C-3
921R152
CAPACITOR, FIXED, CERAMIC DIELECTRIC: disc type; .01 mf
-20% +80%; 450 vdcw
C-7
921R109
CC2OSL270K-
CAPACITOR, FIXED, CERAMIC DIELECTRIC: tubular type;
27 mmf'+10%; 500 vdcw
c-8
921R104
CC2OSL150K
CAPACITOR, FIXED, CERAMIC DIELECTRIC: 15 mmf +10%;
500 vdcw
C-9A,
B, C
419D101
CAPACITOR, VARIABLE, AIR DIELECTRIC: plate meshing
type; 3 sections; A & C- 10 to 186 mmf; B- 14 to
190 mmf; includes wormdrive
C-10
419A103
CAPACITOR, VARIABLE, AIR DIELECTRIC: plate meshing
type; 1.7 to 8.7 mmf
C-11
419A103
CAPACITOR, VARIABLE, AIR DIELECTRIC: plate meshing
type; 1.7 to 8.7 mmf
C-12
921R152
CAPACITOR, FIXED, CERAMIC DIELECTRIC: disc type;
.01 mf -20% +80%; 450 vdcw
C-13
921R127
CC3OSL101K
CAPACITOR, FIXED, CERAMIC DIELECTRIC: tubular type;
100 mmf +10%; 500 vdcw
C-14
921R152.
CAPACITOR, FIXED, CERAMIC DIELECTRIC: disc,type; .01 mf
-20% +80%; 450 vdcw
C-15
921R152
CAPACITOR, FIXED, CERAMIC DIELECTRIC: disc type; ,01 mf
-20% +80%; 450 vdcw
C-16
419A103
CAPACITOR, VARIABLE, AIR DIELECTRIC: plate meshing
type; 1.7 to .8.7 mmf
C-17
419A103
CAPACITOR, VARIABLE, AIR DIELECTRIC: plate meshing
type; 1.7 to 8.7 mmf
C-18
921R328
CM20D202J
CAPACITOR, FIXED, MICA DIELECTRIC: 2000 mmf'+5%;
300 vdcw.
C-19
421A137
CAPACITOR, FIXED, CERAMIC DIELECTRIC: tubular type;
7.5 mmf +0.25 mmf; 500 vdcw
C-20
921R610
CAPACITOR, FIXED, MICA DIELECTRIC: 1000 mmf +10%;
300 vdcw
C-21
421A137
CAPACITOR, FIXED, CERAMIC DIELECTRIC: tubular type;
7.5 mmf +0.25 mmf; 500 vdcw
C-22
921R152"
CAPACITOR; FIXED, CERAMIC DIELECTRIC: disc type;
.01 mf -20% +80%; 450 vdcw
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
23
Ref.
No.
C-23
C-24
C-25
C-26
C-27
C-29
C-30
C-31
C-32
C-33
C-34
C-35
C-36
C-37
C-38
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Contractor's
Drawing &
Part Number
921R463
921R621
921R101
419A103
921R622
419A103
921R127
921R152
921R152
921R152
921R152
921R152
921R152
921R152
921R152
C-39 921R142
C-40
C-41
C-42
C-43
C-44
C-45
C-46
C-47
C-48
C-49
C-50
C--51
24
921R123
921R152
921R152
921R152
921R152
921R152
921R121
921R127
921R110
419B102
921R127
921R109
Jan Type
CC2OCJ020C
CC2OCH010C
CC2OSL100K
CC3OSL101K
CC3OSL560K
CC3OSL470K
CC3OSL101K
CC2OSL330K
CC3OSL101K
CC2OSL270K
Description
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
2 mmf +0.25 mmf; 500 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
1 mmf +0.25 mmf; 500 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
10 mmf +10%; 500 vdcw
CAPACITOR, VARIABLE, AIR DIELECTRIC:
type; 1.7 to 8.7 mmf
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
8.2 mmf +0.25 mmf; 500 vdcw
CAPACITOR, VARIABLE, AIR DIELECTRIC:
type; 1.7 to 8.7 mmf
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
100 mmf +10%; 500 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
.01 mf -20% +80%; 450 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
.01 mf -20% +80%; 450 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
.01 mf -20% +80%; 450 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
.01 mf -20% +80%; 450 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
.01 mf -20% +80%; 450 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
.01 mf -20% +80%; 450 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
.01 mf -20% +80%; 450 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
.01 mf -20% +80%; 450 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
.001 mf 500 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
56 mmf +10%; 500 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
.01 mf -20% +80%; 450 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
.01 mf -20% +80%; 450 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
.01 mf -20% +80%; 450 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
.01 mf -20% +80%; 450 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
.01 mf -20% +80%; 450 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
47 mmf +10%; 500 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC:
100 mmf +10%; 500 vdcw
CAPACITOR,- FIXED, CERAMIC DIELECTRIC:
33 mmf +10%; 500 vdcw
CAPACITOR, VARIABLE, AIR DIELECTRIC:
tubular type;
tubular type;
tubular type;
plate meshing
tubular type;
plate meshing
disc type;
disc type;
disc type;
disc type;
disc type;
tubular type;
disc type;
disc type;
disc type; ?
disc type;
disc type;
tubular type;
tubular .type;
tubular type;
plate meshing
tubular type;
disc type;
disc type;
disc type;
disc type;
type; 1.7 to 8.7 mmf; special shorting type
CAPACITOR, FIXED, CERAMIC DIELECTRIC: tubular type;
100 mmf +10%; 500 vdcw
CAPACITOR,' FIXED, CERAMIC DIELECTRIC: tubular type;
27 mmf +10%; 500 vdcw
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Ref.
No.
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Contractor's
Drawing &
Part Number
C-52. 921R152
CR-1 48K702303
or 48K710004
I-1 4368102
1-2 434C101
1-3 401V489
1-4 401V484
1-5 4388101
1-6 401V485
J-1
J-2
L-1
L-2
PL -6
or
R-1
409C153
409K154
424A155
4248164
428A104
4018518
906R526
R-2 906R445
R-3 906R565
R-4 906R488
R-5 906R502
R-6 906R414
R-7 906R502
R-8 906R488
R-9 906R600
R-10 906R502
R-11 906R495
' R-12 906R565
R-13 906R463
R-14
R-15
R-16
R-17
R-18
R-19
906R526
906R526
906R488
906R565
906R463
906R526
Jan Type
RC2OBF563K
RC2OBF681K
? AC208F474M
RC208F682M
RC2OBF153M
RC2OBF121K
RC2OBF153M
RC2OBF682M
RC2OBF335M
RC2OBF153M
RC2OBF103M
?
RC208F474M
RC2OBF182K
RC2OBF563K
RC2OBF563K
RC208F682M
RC2OBF474M
RC2OBF182K
RC2OBF563K
?
Description ?
CAPACITOR, FIXED, CERAMIC DIELECTRIC: disc type;
.01 mf -20% +80%:,450 vdcw
CRYSTAL UNIT, RECTIFYING: germanium type; Sylvania
type IN60
CRYSTAL UNIT, RECTIFYING: germanium type; G. E.
type IN64
DIAL, BFO CONTROL
DIAL, TUNING
INDICATOR, FREQUENCY CHANNEL: with red & blue windows
& rack gear
KNOB ASSEMBLY, ADJUST CALIBRATION: with adjustment
screw
KNOB,? RANGE SWITCH
KNOB ASSEMBLY, VERNIER: complete with brackets, bush-
ings, tension spring, J-2
CONNECTOR, 2 PIN (Antenna & Ground)
CONNECTOR, 2 PIN (Phones)
COIL, RADIO FREQUENCY CHOKE: 220 uh
COIL, RADIO FREQUENCY: 945 uh; tapped; adjustable iron
core; beat frequency oscillator
CONNECTOR, PLUG: 4 male contacts; plug only
CONNECTOR ASSEMBLY, PLUG: 4 male contacts; with cable
RESISTOR, FIXED, -COMPOSITION: 56,000 ohms ?10%; 1/2W;
ins
RESISTOR, FIXED, COMPOSITION: 680 ohms +10%; 1/2W; ins
RESISTOR, FIXED, COMPOSITION: 470,000 ohms +20%;
1/2W ins.
RESISTOR, FIXED,
ins
RESISTOR, FIXED,
1/2W; ins
RESISTOR, FIXED,
RESISTOR, FIXED,
1/2W; ins
RESISTOR, _FIXED,
RESISTOR, FIXED,
1/2W; ins
RESISTOR, FIXED,
1/2W; ins
RESISTOR, FIXED,
1/2W; ins
RESISTOR, FIXED,
RESISTOR, FIXED,
1/2W; ins
RESISTOR, FIXED,
1/2W; ins
RESISTOR, FIXED,
1/2W; ins
RESISTOR, FIXED,
1/2W; ins
RESISTOR, FIXED,
1/2W; ins
RESISTOR, FIXED,
1/2W; ins
RESISTOR, FIXED,
1/2W; ins
COMPOSITION: 6800 ohms +20%; 1/2W;
COMPOSITION:
COMPOSITION:
COMPOSITION:
COMPOSITION:
COMPOSITION:
COMPOSITION:
COMPOSITION:
COMPOSITION:
COMPOSITION:
COMPOSITION:
COMPOSITION:
COMPOSITION:
COMPOSITION:
COMPOSITION:
COMPOSITION:
15,000 ohms +20%;
120 'ohms +10%; 1/2W;ins
15,000 ohms +20%;
?
6800 ohms +20%;1/2W;ins
3.3 megohms +20%;
15,000 ohms +20%;
10,000 ohms +20%;
470,000 +20%; 1/2W; ins
1800 Ohm; +10%;
56,000 ohms +10%;
56,000 ohms +10%;
6800 ohms +20%;
470,000 ohms +20%;
1800 ohms +10%;
56,000 ohms +10%;
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
25
?
.
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Ref.
Contractor's
Drawing &
No.
Part Number
Jan Type
Description
R-20
906R526
RC2OBF563K
RESISTOR, FIXED; COMPOSITION: 56,000 ohms +10%;
1/2W; ins
R-21
906R488
RC2OBF682M
RESISTOR, FIXED, COMPOSITION: 6800 ohms +20%;
1/2W; ins
R-22
906R474'
RC2OBF332M
RESISTOR, FIXED, COMPOSITION: 3300 ohms +20%;
1/2W; ins
R-23
906R526
RC2OBF563K
RESISTOR, FIXED, COMPOSITION: 56,000 ohms +10%;
1/2W; ins
R-24
906R537
RC2OBF104M
RESISTOR, FIXED, COMPOSITION: 100,000 ohms +20%;
1/2W; ins
R-25.
906R565
RC2OBF474M
RESISTOR, FIXED, COMPOSITION: 470,000 ohms +20%;
1/2W; ins
A-26
906R554
RC2OBF274K
RESISTOR, FIXED, COMPOSITION: 270,000 ohms +10%;
1/2W; ins
R-27
906R431
RC2OBF331K
RESISTOR, FIXED, COMPOSITION: 330 ohms +10%;
1/2W; ins
A-28
418B105
RESISTOR, VARIABLE: composition; 1 megohm +20%;
1/10W; includes knob
R-29
906R488
RC2OBF682M
RESISTOR, FIXED, COMPOSITION: 6800 ohms +20%;
1/2W; ins -
R-30
906R554
RC2OBF274K
RESISTOR, FIXED, COMPOSITION: 270,000 ohms
1/2W; ins -
R-31
906R537
RC2OBF104M
RESISTOR, FIXED, COMPOSITION: 100,000 ohms +20%;
1/2W; ins
R-32
906R495
RC208F103M
RESISTOR, FIXED, COMPOSITION: 10,000 ohms +20%;
1/2W; ins
R-33
906R565
RC2OBF474M
RESISTOR, FIXED, COMPOSITION: 470,000 ohms +20%;
1/2W; ins
S-1
440C102
SWITCH, SLIDE: range switch; with knob
S-2
440A103
SWITCH, PUSH: single-pole, single-throw; momentary
contact; normally open
T-1
424B162,
TRANSFORMER, RADIO FREQUENCY: adjustable iron core;
LF antenna
T-2
424B163
TRANSFORMER, RADIO FREQUENCY: adjustable iron core;
HF antenna
T-3
424B158
TRANSFORMER, RADIO FREQUENCY: adjustable iron core;
LF RF
T-4
424B159.
TRANSFORMER, RADIO FREQUENCY: adjustable iron core;
HF RF
T-5
424R160
TRANSFORMER, RADIO FREQUENCY: adjustable iron core;
LF Osc
T-6
424B161
TRANSFORMER, RADIO FREQUENCY: adjustable iron core;
HF Osc
T-7
424B121
TRANSFORMER, INTERMEDIATE FREQUENCY: 455 kc;,input;
iron core;' double-tuned; with shield
T-8
424B121 ?
TRANSFORMER, INTERMEDIATE FREQUENCY: 455 kc; inter-
stage; iron core; double-tuned; with shield
T-9
424B121
TRANSFORMER, INTERMEDIATE FREQUENCY: 455 kc; output;
iron core; double-tuned;-with shield
T-10
-425B121
TRANSFORMER, AUDIO FREQUENCY: plate-to-phone, coupling
type
V-1
ELECTRON TUBE: subminiature pentode; 8 term wire
type; RMA type 5899
V-2
ELECTRON TUBA: subminiature pentode; 8 term wire
type; RMA type 5899
V-3
ELECTRON TUBE: subminiature pentode; 8 term wire
26
type; RMA type 5899
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Contractor's
Ref. Drawing &
No. Part Number Jan Type Description
V-4
V-5
V-6
V-7
V-8
X-1 409B118
Y-1
Y-2 448A103
C-101 408A102
C-102 921R110
C-103 921R142
C-104 921R127
C-105 419B121
C-106 921R152
C-107 921R107
C-108 921R152
C-109 921R152
C-110 921R152
C-111 921R152
C-112 419B122
C-113 921R463
E-101 465A121
E-102 465A121.
E-103 65X77646
I-101 436B125
1-102 436B126
1-103 436B127
J-101 409A130
409K154'
K-101 401V471
L-101 424A128
ELECTRON TUBE: subminiature pentode; 8 term wire
type; RMA type 5899
ELECTRON TUBE: subminiature pentode; 8 term wire
type; RMA type 5899
ELECTRON TUBE: subminiature triode; 8 term wire
type; RMA type 5718
ELECTRON TUBE: subminiature triode; 8 term wire
type; RMA type 5718
ELECTRON TUBE: subminiature triode; 8 term wire
type; RMA type 5718
SOCKET, CRYSTAL: with switch
CRYSTAL UNIT, QUARTZ: plug-in type (not furnished
with receiver)
CRYSTAL UNIT, QUARTZ: 500 kc
Section II. TRANSMITTER RT-6-XX
CAPACITOR, FIXED, METALLIZED PAPER: 1 mf +20%;
200 'vdcw
CC2OSL330K CAPACITOR, FIXED, CERAMIC DIELECTRIC: tubular type;
33 mmf +10%; 500 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC: disc type;
.001 mf; 500 vdcw
CC3OSL101K CAPACITOR, FIXED, CERAMIC DIELECTRIC: tubular type;
100 mmf +10%; 500 vdcw
CAPACITOR, VARIABLE, AIR DIELECTRIC: plate meshing
type; 7.5 mmf to 176 mmf
CAPACITOR, FIXED, CERAMIC DIELECTRIC: disc type;
.01 mf -20% +80%; 450 vdcw .
CC2OSL220K CAPACITOR, FIXED, CERAMIC DIELECTRIC: tubular type;
22 mmf +10%; 500 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC: disc type;
.01 mf -20% +80%i 450 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC: disc type;
.01 mf -20% +80%; 450 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC! disc type;
.01 mf -20% +80%; 450 vdcw
CAPACITOR, FIXED, CERAMIC DIELECTRIC: disc type;
.01 mf -20% +80%; 450 vdcw
CAPACITOR, VARIABLE, AIR DIELECTRIC: plate meshing
type; 11 mmf to 218 mmf
CC2OCJ020C CAPACITOR; FIXED, CERAMIC DIELECTRIC: tubular type;
.2 mmf +0.25 mmf; 500 vdcw
LAMP, GLOW: neon; 1/4W
? LAMP, GLOW: neon; 1/4W
LAMP,. INCANDESCENT: 2V; .06 amp; tubular; clear
glass; bayonet base; RMA#49
KNOB, ANT IMPEDANCE MATCHING SWITCH
? KNOB, FINAL AMP TUNING
KNOBv OSC TUNING
JACK, TELEPHONE: accommodates 2-conductor Army
plug PL-55
CONNECTOR, 2-pin (Antenna & Ground)
KEY, TELEGRAPH
COIL, RADIO FREQUENCY: plate tank; 16.4 uh
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
?
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Ref.
No.
Contractor's
Drawing &
Part Number
Jan Type
Description
L-102
L:103
,L-104
L-105
LR-101
424A143
424A155
424B130
4246129
424A156
COIL, RADIO FREQUENCY CHOKE
COIL, RADIO FREQUENCY CHOKE: 220 uh
COIL, RADIO FREQUENCY: HF plate tank; 5 taps
COIL, RADIO FREQUENCY: LF plate tank; 5 taps
COIL, RADIO FREQUENCY: 80 uh; Wound on 560 ohm +10% 1/2W
fixed composition resistor -
PL-5
428A122
CONNECTOR, PLUG: 6 male contacts
R-101
906R536
RC2OBF104K
RESISTOR, FIXED, COMPOSITION: 100,000 ohms +10%;
'
1/2W; ins
R-102
906R529
RC2OBF683K
RESISTOR, FIXED, COMPOSITION: 68,000 ohms +10%;
1/2W; ins
R-103
906R403
RC2OBF680K
RESISTOR, FIXED, COMPOSITION: 68 ohms +10%; 1/2W; ins
R-104
906R515
RC2OBF333K
RESISTOR, FIXED, COMPOSITION: 33,000 ohms +10%;
1/2W; ins *
R-105
906R781
RC3OBF333K
RESISTOR, FIXED, COMPOSITION: 33,000 ohms +10%; 1W;ins
R-106
906R585
RC2OBF155K
RESISTOR, FIXED, COMPOSITION: 1.5 megohms +10%;
1/2W; ins
R-107
906R778
RC3OBF273K
RESISTOR, FIXED, COMPOSITION: 27,000 ohms +10%; 1W;ins
R-108
906R960
RC42BE271K
RESISTOR, FIXED, COMPOSITION: 270 ohms +10 2W; ins
R-109
906R1040
RC42BE223K
RESISTOR, FIXED, COMPOSITION: 22,000 ohms +10%; 2W;ins
R-110
906R372
RC2OBF120K
RESISTOR, FIXED, COMPOSITION: 12 ohms +10%7 1/2W; ins
S-101
440A123
SWITCH, SLIDE: single-pole, double-throw
S-102
440A122
SWITCH, SLIDE: double-pole, double-throw
S-103
4406104
SWITCH, ROTARY: special; 5-position with OFF; 2 pole
V-101
ELECTRON TUBE: miniature pentode; 7-pin; RMA type 6AG5
V-102
ELECTRON TUBE: pentode; octal; pin type; RMA type 2E26
X-101
409A131
SOCKET, CRYSTAL
Y-101
CRYSTAL UNIT, QUARTZ (not furnished with transmitter)
Section III. POWER SUPPLY RP-6-XX
C-201
408A123
CAPACITOR, FIXED, PAPER DIELECTRIC: .006 mf 1600 vdcw
C-202
408A123
CAPACITOR, FIXED, PAPER DIELECTRIC: .006 mf 1600 vdcw
C-203
408A121
CAPACITOR, FIXED, PAPER DIELECTRIC: .5 mf 200 vdcw
C-204
921R165
CAPACITOR, FIXED, CERAMIC DIELECTRIC: disc type;
.01 mf GMV: 500 vdcw
C-205
921R166
CAPACITOR, FIXED, CERAMIC DIELECTRIC: ,Olisc type;
.02 mf; -20% +80%; 500 vdcw ?
CR-201
448C123
RECTIFIER, METALLIC: selenium, full-wave
E-201
465A121
LAMP, GLOW: neon; 1/4W
F-201
65K890033
FUSE, CARTRIDGE: 1.5 ampere, 250V
F-202
65K804906
FUSE, CARTRIDGE: 15 ampere, 32V
G-201
448B101
VIBRATOR, NON-SYNCHRONOUS: 115 cps, 6 vdc
I-261
436B121
KNOB, LINE VOLTAGE SELECTOR
L-201
424A157
COIL, RADIO FREQUENCY CHOKE: 6.0 uh
L-202
COIL, RADIO FREQUENCY CHOKE: not replaceable -formed
by lead wire
R-201
906R536
RC2OBF104K
RESISTOR, FIXED COMPOSITION: 100,000 ohms +10%;
1/2W; ins
R-202
906R536
RC2OBF104K
RESISTOR, FIXED , COMPOSITION: 100,000 ohms +10%;
1/2W; ins
R-203
906R400
RC2OBF560K
RESISTOR, FIXED , COMPOSITION: 56 ohms +10%; 1/2W; ins
R-204
906R400
RC2OBF560K
RESISTOR, FIXED , COMPOSITION: 56 ohms ;10%; 1/2W; ins
S-201
440B108
SWITCH, ROTARY: 8-position; single-pole; shorting type
28
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Ref.'
No.
Declassified and Approved For Release 2013/09/11 : CIA-RDP78-03535A000700130059-5
Contractor's
Drawing &
Part Number
SO-1,
409B121
S0-3 409A122
T-201 425D137
V-201
C-301A,
B 408B122
C-302A,
B 408B122
F-301 65K890033
... F-302 65K804906
HS-301 450B101
L-301.
401V375
' 2,3 442A162.
PL-3 428A123
R-301 418K128
R-302 418A127
R-303 418K128
R-304 418A127
R-305 906R313
S-301 440A110
or 440K111
SO-5 409A128
SO-6 409A129
V-301 -
or
' V-302
or
W-301 401B363
W-302 401B366
W-303 430B101
Jan Type
Description
CONNECTOR ASSEMBLY: consists of two Jones receptacles,
one 8-prong (S0-1) and one 7-prong (S0-2)
CONNECTOR,PLUG: 6 female contacts
TRANSFORMER, POWER
ELECTRON TUBE: miniature double diode; RMA type 6X4
Section IV. FILTER-ACCESSORY UNIT RA-6-XX
RCIOBF105M
ADDITIONAL ACCESSORIES
E-301 451B101
E-302 414A117
H-301 401V376
CAPACITOR, FIXED, PAPER DIELECTRIC: 2-section;-
1.5 x 1.5 mf 600 vdcw
CAPACITOR, FIXED, PAPER DIELECTRIC: 2-section;
1.5 x-1.5 mf 600 vdcw
FUSE, CARTRIDGE: 1.5 ampere, 250V
FUSE, CARTRIDGE: 15 ampere, 32V.
RECEIVER,,EARSET: magnetic type; 2000 ohms impedance;
with 2-terminal receptacle ,
REACTOR: filter choke; single winding; 4 hy; includes
mtg nuts
RING, RETAINER
CONNECTOR, PLUG
RESISTOR, FIXED
RESISTOR, FIXED
RESISTOR, FIXED
RESISTOR, FIXED
RESISTOR, FIXED
1/2W; ins
SO-5
6 male contacts
WIREWOUND: 8000 ohms +5% 10W
WIREWOUND: 4000 ohms +5% 5W
WIREWOUND: 8000 ohms +5% 10W
WIREWOUND: 4000 ohms +5% 5W
COMPOSITION: 1 megohm +20%;
SWITCH, TOGGLE: double-pole, dOuble-throw; 3 amp 250V
CONNECTOR, PLUG:. 6 female contacts
CONNECTOR, PLUG: 4 female contacts
ELECTRON TUBE: sub-miniature voltage regulator;
JAN type 5644
ELECTRON TUBE: sub-miniature voltage regulator;
JAN type 5787
ELECTRON TUBE:
JAN type 5644
ELECTRON TUBE:
JAN type 5787
CABLE ASSEMBLY,
plug & Jones plug; 6 ft long'
CABLE ASSEMBLY, BATTERY: 2-conductors; one red, one
black; with Spade lugs & Jones plug.; 41 in. long
CORD, EARSET: 5 ft long; 2-conductor; with two .083
tips and 2-prong male plug .
sub-miniature voltage regulator;
sub-Miniature voltage regulator;
AC: 2-conductor; with universal line
Hank, antenna
Insulator, antenna
Clamp, battery: with screw
29
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5
30
468P 10 2-0. CP
Declassified and Approved For Release 2013/09/11: CIA-RDP78-03535A000700130059-5