THE HIGHLY STABLE DIODE 4TA1M IN AUTOMATIC AND REGULATING CIRCUITS

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00809A000600400632-5
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 14
• Document Creation Date: December 22, 2016
• Document Release Date: August 25, 2011
• Sequence Number: 632
• Publication Date: August 11, 1951
• Content Type: REPORT

Sanitized Copy Approved for Release 2011/08/25: CIA-RDP80-00809A000600400632-5
COUNTRY ,J9SF DATE OF
INFORMATION 1.948
SUBJECT S:;iert:f1._ Eie:?rarity, vacuwm tubes, dice s
HOW
PUBLISHED
WHERE
PUBLISHED
DATE
PUBLISHED
LANGUAGE
CLASSIFICATION CONF:I1ENT_A(.' l1. s -
CENTRAL INTELLIGENCE AGENCY REPORT
INFORMATION FROM
FOREIGN DOCUMENTS OR RADIO BROADCASTS CD NO.
M:.nt:r_Jy prricdicai
M^ewcw
NI-3y 19LB
DATE DIST. /;! Aug 1951.
NO. OF PAGES 14
SUPPLEMENT TO
REPORT NO.
THIS IS UNEVALUATED INFORMATION
THIS TACO NEST CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENSE
OF THE UNITED STATES WITHIN THE MEANING OF ESPIONAGE ACT SO
U. S C.. SI AND EE. AS AMENDED ITS TRANSMISSION OR THE REYELATI ON
OF ITS CONTENTS IN ANT MANNER TO AN UNAUTHORIZED PERSON IS PRO-
MIBITED BY LAW. REPRODUCTION OF THIS FORM IS PROHIBITED.
.948, pP "1.7 -24
T3Fu-i HL": STABLE D:CLE' 4-Ts-,IM
IN Ai7T0MA.:.10 AND nE;:JLAT;N_? C1CTrITF,
G. R,. ; e:tae::,t?erg
Cand Teach :.?i
All -'Uric El Eng Inst 1.m. ni Lenin
i'Fi.gursL a:e apcFrne.J -T
Th+t 4TsIM alectro t,.u~- 1,y S:v:st industry can be used extensively
in vari.cus :eEu.iaic: e acs Mary devices and in t.ruments .an
be imprc?ved t:Lirnugt. Its ?s e . S..m.- -f cE.':= net.rasent>_ are d?:, rieed i.elcw.
The 4Te,M tube is an ,-rdina?:y i:cde a:i*.a a toifvam catticde
The Iaramet8.6 if tr'F~ tuts ar as fc:L_'ows, filament voltage, 4v; filament
current, atip,~ plate. :urr=nt., 1;1 ma; aturat.cr trane.Cnd.u:tance, 0.03
maw; pla.t.e voltage , 2=.0 v; life, 3,000 to?.
The wn1?-am cathc3~? gives etas:: eaissixA and a prro-'nced saturation ef-
fect. 4riseion _ur.r=nt is ::.cugt.1y pr?:?ac:r ticnal. t:, the seventh power of the
filament voltage, Tl'eie fe.atur'a; make. the tube very useful for the measuring
devices of various voltage and ,u--rent reaulat it s and alsl^ for relays.,
Its long life, sinich is even longer when t?.e. tube Iterates in normal cfr.
cults vhere the filament is underhearei, makes it very reliable. Its. ira4backe
are the relatively high ties cc?netant (due to the thick filament, vtich pro-
longs the life) and the relatively high filament current, which limits its use
in low-,power d.c circuits.. The tube must be. praage fcr 24 hr under rated ccn-
diticna before put?ttng it ant': service to obtain ahec:.utely constant emission
because the -wolfram filament. Fontaine etime. traces )f thorium immediately after,
manufacture. which are evaporated in praaging..
CLASSIFICATION
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Sanitized Copy Approved for Release 2011/08/25: CIA-RDP80-00809A000600400632-5
 Sanitized Copy Approved for Release 2011/08/25: CIA-RDP80-00809A000600400632-5
C0Nc1DEN1'.AL
ht?-aaurin E1 'min*_ rr. AC 'J,:lta;- i7ea!;:v t:;rs
Tee ,:'h-mate,: dlatrr:aat of a rt,ea.;,wr1cg -~ me.t r.-'r ac voitag. reaulatrrc is
srcwT, in I'1gure 1 Lir.-. r-51-tor i T 'trine tt?.1 ].nt., i.tira brldg': Pr$ th=
4TSlw te filament :,f L unr?iia1 frvr. the v_lt.a,3 t. be tulat-td,
is u5 a: t.h: fourto arm Ii- b: 1~ac i ,uppl eo by 1 vo]taa-. Wb r a .er-
ir,t ?rnal '-
tair. v,l?age y:pl"~i t?'> t-, f;la:z,cot, it... .ststan:e uiLl be
=_g1_13.1 t.-, ?U.c lir.:' an" L'i- 'oJt.ana In ca= bridge iagonal will be zero..
Wrien tne v. ltarr- :1r?p . 11-r ra i,- d- f;1am,'nt fiu?',uuatAa, dr voitago appears
~
at tre iir' , ?r.ut t pUa ,ty :f whist: is rennin d ty t.ne di-p, tion .f
flu:tt,a.t.::r, f:L3ara 0'=.re uil. r,< _;nsiderable power iccr-' in the resistor- R and
B j h~ aaae cf Ligrl 4T .4 fitan=rit ",trr-ttt , Tn *=fore5 th:= m=asur'_ng clement
ir_ult ,:rcwn in Fiinu . It -t _ t 1 t- ussI for B= nsta` r5 with rata?i v:-!tastes of
2:L and 48 v
!'r.. 4:n!I1ifi ati:,r :f tt;t m=a=:oring .:1-s-nt .n Figur: at ttr_ op=rating
tnt f iL "fla'_a t'r ctt:l -., V na r. e= at input. Ji~rnetiII,85
n,, 6 b -ray r , v . i ..f f r . , . nsr t i .d -t ,ura: y it t, perm ion of
?nH re,ralar as a an; L. " If , a m.a:ur iris ~ c,att -itt a ad .ltional
h T??, npilfi::a}:i::n
t ull as Fisur?- -t.n for this stoas.uring
elempnt 7C v psi 1 v unrtzt a', t'.:e tn:,ut
pall :f r"- ut .?r,er=,r.a a :athnd? 1: L::wer . T?'.E , athod=..
p:.t=otiai '.p.int i t 1 T . - n - a" ntia. r int a T right :alf iprates
a- an aidiaary amtl:f.:. The plat ? 1 _',.t . ?_i-stan:- R2 must ba n ideiably
larger than the ::atY_ci ?ac.:= d3 t:: av.:a. a ..r:eidsrabl.c. :Fcrsasa in the
ampli.fi:ati,:n fa:?t;r b?:?:sus- :f n-gat??, f-e:iLaak..
rg aeu__t Ei _mert for at, Am, 1 idyr,-V.ita I =. ~ulator
An ampl,dyr may Is :mpl;-ti-d a . c:ntrtl cf a voltage r-?olato?r
f,.-,r 1arg.: a:_ P-r,e:iat.. It. ?,an =ith r be us.rl as an aur..iiiar f ewe- iter or : an
bf~ 1 =er.u. +1 t'1 rr -n it, n wincing itr.r a _ reliability op_.
r-ra.ti n. Jr.. tr. iattri c,-s itat J.rr5t1_ ..:r"rc,j^.nd. ig to th. rtoniinai
cperati r ot the e-nsrat:r~-,vii by if ?-x 1*.atl n F gun e F w. a,
s h'sinat~.: diag_atr.:f a m-asurinL2, ?1-m r;r .with a 4Ts1M -ii ,,de for an amplidyn'-
v;"lt,age regulator
mal: , ;,ang tt,~ rr:~; I'LaLz,- voltsg~^the plat- c.urr'-nt it the 1aft
F~. '~ s of
half o,f?the tape L2 varies r at ty Tn.is cl:rr =r1t flc;ws t:s.tugb :..ne cf the 7c?r. -
tr:.l'u~r'lrgs f t~.?= a.mp'idyte let I urn nt in ,e- a .tint 1 winding
a pr ,F r ti nal to e ula t d v,: ltage ..
~_r?:t ..u a: g
flaw- r i11= t _.it the r
F'igurn _o own: t:n? :aurrezi varirt.lan,a ._r, tts cinIitu,a '1Lii -1,e to
varlat't:?ns in the raoruLat d vci?t,
In Scviea.:.h: ;duce.. :;;vylidyne e , th rat