VISIT TO (SANITIZED)

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-03172A000300030013-3
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 6
• Document Creation Date: December 22, 2016
• Document Release Date: February 22, 2012
• Sequence Number: 13
• Publication Date: November 1, 1957
• Content Type: REPORT

Declassified in Part - Sanitized Copy Approved for Release 2012/02/22 : CIA-RDP78-03172A000300030013-3
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JUST
25X1
25X1
hmei tu4)a% to :;t :IUt w;i'i.:
1 '3,.tl.Al.t ii fwt?.'C*. IA& U84 Wt jk: W3i t:t L4: + '-
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K caQeRY wk' :. tt!.Anati. aal .. I3::~"~ zt.LW: Aiiy is i?c 4C: ? .~ to ' ii3LY?: t.L`
cs: ? L `' :+'3:466 .Lfcz3itttt i.t>e . 0 ~', arc:.:: 25X1
.. ' '. sts the ..at1'C +aati tied tsie ; e:%;,'t;, *.4*, .. J_
i ux ..'.ice :." ea. S.iy he lU iC - .;TSB _.4 r i ',8 ', tl jf:.tt;iA v, ' bft tacq~wrut:,trc
;,' ro _ .-_ Lr' tm't + . .4~ta 4 t#' NXMI t .1. 1 AnA the ixx e- at 3~ ., ird. tex'e iw ?c
is'w rt. r? mt 1 `. U tjwwwdt%,civ iAi E"L+ 1vc t3~i ;Li t e bw-ja ,, . "1 i..
1'i t E ets ; friar t.~> the : A rssi rm ct that
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dAT~"?,.. -.a tv `..: ni Ziml :."&L-;a wi i tip' to
1 y~~...i jj.", evul."Antic p llw~ i~~ye }y~./?;.t -t .~. :~A, ~-yticJt .~: 25X1
s.,,ois ~.4 7/R.,\i*i"WW MR ware t ii ; t ck, it 'nld ;A l:w4W'4 ~.? `.'i1..1fi?i~ .t t.L '.il.
i 3 U l" c it.ici 3ma :+ s"3 a,,.? rai , Grua ; '...L! b+ tox t.)... + t4,,;
at C. M&A?* L6Lcs te. 25X1
-.a I R`~~t~a' ;;...~? 25X1
a Pr se t eatis it t 1c ws d that the ruc u='
it a v e , L i' & t . . t r 1 c t a n .'~T-_''- ,t7 t h v t ,,at* ife that t ' r be . 3 1 i 5 . t z . t ' i it
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.42"A to :,v I-aie, ii,. e" ''f ux t. 9 wi ' l :. t touw 1x ',cre A i4 y ane Life :fi t
r. b: .; ~4. .:::au%vaw ti '.ire ;tea, Le .:b'C ,'a ti mgt; A% -M,1, c'a+"S.ace it;
xaa ! LL -:aa tt. OUt: xi.t. i~At a.3 :. .:yii r t ? t.u Y ~', ;, c (7~J kx,. tit^t .
.U we N4"` .^r: 4.wt tir t e the ismor ::A.?, atit W y t a. : k 'ta z t33:.&8,. fSomt e.
t ::ez rt a re c zt tti v'e ft.. ,ii 'e.
Declassified in Part - Sanitized Copy Approved for Release 2012/02/22 : CIA-RDP78-03172A000300030013-3
 Declassified in Part - Sanitized Copy Approved for Release 2012/02/22 : CIA-RDP78-03172A000300030013-3
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'~ewrwul= for
Subject: iiit
It is pos.aib.Lc that we might double the life of the t;aler:,n. The
7.an4er8i zned, therefore, recczue rda that we set all ST 21A c utput at
a mo. J.mate i..y JO m iii -watt: output. The rain a we n i it Lose .inn
power os;tput is far out weai,_d by the ioratier life operation.
he rmnufact},rer line "Ire r enc(yunteriaz,; trouble on the delivery
date if the herd--to-bet vital teardA.Uum c cit(r s. Using all pressure
possaiblc Was able to et a verbal eirreecent to a delivery on 25X1
t canber A5. Were this delivery made, everything would .
L~e satisfactory
but past experience with this qty shows that if the delivery were made
by JecerAber 31, we should consider ourselves fo truasate. 'k''herefo:re,
the :older si&ied is i-c",:, to make every effort possible to obtain. more
of a priority on the delivery of these item. Since his return
trrxa thin trip the .arrdereigned has been in touch with 25X1
of the t:ontract Branch is lwking into the possibility 25X1
of obtEairdng these capacitors fry the Armed Services.
3. P-.'Lb -L T fitter ST-3 - because of the 25X1
production coca fast -1-00 717-70-79, tere has - ea relief in the
pressure on the $t-3. This will ~ e the first time that an bf unit
has been csmde that the field people were not depending on it to satisfy
their upexationat needs. This relief in pressure aliiiws us to try
acme minor variations which should bring about iv roved cperatiou without
z unnir.:; the risk of fouling up operations. Any of the c_,b k,,en that will
be r a 1c will in , eneral be minor and should have no drastic effect on
the eoui iaent. T'lsea follo ving are some of the desitga La that are bein
incorporated in the ST- 3. ' modulator will be a diode and will thus
remove the effects of the aGin, of tubes upon the azaduatin , sensativity.
In the 8'i.-2A the c&acity bet ae.en the collecter and emitter was .mod as
the mods afar. if the tubes aged, the value of this capacity changed as
a fuaztiu.^i of the input capacity of the oseilator tube. :'tie afore
mentioned diode will eliminate this problem. By iuetaliii a diode in
the food back patch of the audio as Ltfier an AGC capability of up to about
'.A) db is expected to be loenible. Abe diode charges the capacitor on
possitive peals and ttrzs, controls the Use of the first audio translator.
i dernonatration shored to the undersigned was the fol_lowinr;. t:ith
the undcrs:f ..end talki, directly into the microphone at a distance of
aaout " LTXO 7~i about `. ft. away talking; it, a soft voice, the .nder- 25X1
ai Tled waao !able to follow loth aides of the conversation. t' u tkxer dotai.lss
of this ssystam will be forthcexnin as the project pro sse s but at this
time all. indications are that we might have the answer to a Lor:4; needed
.GG:; systrx:.
Declassified in Part - Sanitized Copy Approved for Release 2012/02/22 : CIA-RDP78-03172A000300030013-3
 Declassified in Part - Sanitized Copy Approved for Release 2012/02/22 : CIA-RDP78-03172A000300030013-3
i 0
It Is ros;xiL Lc tlYaaL 'sre r i;;ht .A.;:u'Uc the Life of the . lie
x'.clc'x?~ti ;2]~cl, tlherefore, , ece '* ie s3 that we set, all ;x :'A tj)Ut C
Ll :t'U::1.Z7t3 tea. j' rC) mi 1.1i -wat ;; o;A tj,.+ut . the rLAt.I,e e rlo fit ' Eie ;..
is fat' :.:L:: wei 1X-L1 : y til! i,f~ll,; ,cr life
t::Cou ' e ?:~:i the
%at,t :f tiYC hard to-{yet a~~cal. :, l~t,lt uu cr :acito.^a. :Jilin a1..I. p:t'es :i'4
I~utzsik lc grass a,.'L'b.tc: to ,et a ;rert e. ixk 'eexrnn.t to a deiiver;j vi, 25X1
i.+ec tipe ? 5. ;',ere this cie i1v;:r-j tied, ever,,-thixt would ,e_ sntisfaetori
1znnt pnst Cq)erici_ce s lth Lhii cc.xar:*.t:;; thews that if the dciivexy were roc;.
j kzceit er .j..! , ,e cshould coa Icic l? c u?se:lves fort4 te. UAU La'- -.
We .:cYdersi~~:ect. is to tt?tt:e every effort poaaib Lc t o .:ictalu more
of tx ; n the (;elsver; c;f these items. ;~i..tce iti s return
from th.iu trip the .tadertzi ,red has been in trnu.ii :=vita 25X1
the ollva raet iTax ch `lnd .t.$ L:~ir 25X1
oi' c::tjtird rY these zacitort fr.x the Armed f..')ervioe;z.
::.., j _ cc ..::zs3e of the 25X1
xre$raittcr it
i ,:untrsct v :'1- s, t ereri 1jas be x re: tet~' in the
si .'?ear .' re .,ra the ,t-- j. D Us 'AL::, no the first title that unit
has 1>c~c>.rt td.-e- that the field ;>c v ale were not depending or, It to satisfy
t.Yeix :;>erzat.ivnai needs. "his relief In ?,reszstare I di'-ma .Aix to try
acre; ;:J.aor vaciut.ions which ahon.Ld urine about ituroved o xeratica wit)-WLlt
We i?is1. ,f fvuli; ; Li~p Ver?atious. Any of the :.hau ea that will
_,e. i.z,Ie wi-l_l in _,encrml. to uainor ;tnd shoW.d have no cirustic: effect on
the eq.ii;a?,rc; 5 i . .'he f:~ l l ri rYt ac ?c set a of the dcsi, p : foal a that are bei.; ;
a.1ii cat;~h ra'tecl in the ST j. -lie taocWlator wilt. t.rc a dives and v;il:l urea:
i ii4uvr the effevtt of the ui-in, of tubes
.:pon the ::gad:.ttztlla;, aealasztirority.
In the .: A the ca *tcit, b:e iieen the coliecter ana er..itter was =seed: as
a' `~he t.;txco a;_.;cd, the val. i ae of this c.a , aci ty _;hxt:n4, ed as
i',xn ti',,. j ;:;f' the input ~.e pa.ci t; of the cscilatox? t.. be. he afore
r..e_:ticn:ed "ode w.ii.i o.Lirairsatc:. this P-otdezt:.. 3y izzmtaLtin,.; a diode In
Vic, f"'od :.back; patch of the ca