TUBES PRODUCED AND DEVELOPED BY THE BF TELECOMMUNICATION PLANT IN BERLIN-OBERSCHOENEWEIDE

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP82-00457R014000130009-7
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 8
• Document Creation Date: December 20, 2016
• Document Release Date: April 25, 2006
• Sequence Number: 9
• Publication Date: September 29, 1952
• Content Type: REPORT

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CLASSIFICATION SECRET
? S N.C-TrICT TY. I DIFO.RVA Troy
CENTRAL INTELLIGENCE AGENCY
NI AT 10 N FHIPOR
?C*ONTRY. I3- rix
SUEJ ECT
PLke.,E
- ACQUIRED
r)4TE Or;
NFO.
Tubes Produced and Developed by the RF Tele-
communication Plant in Berlin-Oberschoenewside
REPORT NO.
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DATE STR. 29 Septa.mber 1952
NO. OF PAGES 7
NO. OF ENCI.SI-1
;LISTED El ELOM
I
SUPPLEkEl'fr TO
REPORT NO:
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THIS IS UNEVALIATED ItiFORMATION
REFER,k7E COPY
N DO NOT CIRCULATE
I, In nrvrisa 1Y5).. reort the VVC L I. C rat
Thtendsp,sse?1-srl'in-gber5ellenneweide, the rnrr-nrAQ01.):7!rsroe which be-
cw:e a diecueso4 I 25X1
IThe total ?
iC- LO mcr ane to be
rThabied hn 1952, 4nasr the nuf: e.Lait Ir, clrly the 17 ilmtha-. a c)tol
of? 4,53f) rc C. ifl. I dZi tho D.17,nt 6,40 c2loyeaF, late.
the vwJ chodulod tc htive 9,5M enpIeyees4 vere
worke onl:T in. cort.7th -F7ectionE; tlo 1 nt 'but In L9',;2 -,ratioally all sbetiL ?
ylant will be -twrking in two erJer tc utrnse more fully the
aw.lilaae machinery, a-i. has Trev3.ousa7 bcea utiled. at leF;!.% than 50 :orceni.,
of capacity. Ale quota fulfillnon-t "by the varicuc scfAiono O tha :Jant wa
? peecont Sr ths T.Ube.cetion, 151.9 perc-orm by he .',1:ociel'Tuh and Cathode
Tue (CP -7,rd Tungten''
cair, 162,2 .-nrcont by the 7,et 39,6.ereent L:ir- the
.7.:rtn1 perecntaFy .. L i I
tion vas caused by the loss of key technical personnel, The. SLG Kabel estimated
the total output of tha plant at 193209 (sic) perceut of the quota and bonuses .
wors paid on the basis of this figure. In 195 , 17 percaLt of the tubed. delivered.
not imiuding failures is T-2 sets delivered to the USSR, were returned by
onstomers,,
' The -roelletion 7nteriris usod inti 0!17 nnj secT,ion of ,he rinnt cer,t
.:Ft---arks in 1950 and Ii 373, east7).-Irks in Yhe c,:ev-11
a.,:;ersm. 2,L72,3U Rz...strarks in 1953 .-nC.; 2,9)33449 ea:Athers in Iin
the vricaqu7. :us a :,actirn the waver er,ounte( to 2,5!.;7,520 emtu9 in
Dryi 5,251?190 61,,,stri.a.c.ko in 1951. Mc ?4',C K&,e1 nTpro;:riated oulT 1?CGC?fl'")?
e.-trArks for invoonts in 1::52? 'including 600,00C to 8;X.),3CO oastar',:s frAr
the ;:rociletion oT tu!)et4, and an sdc:itional 6C0,00 ast:mrks 21er ;.enerzl re-
21-1 orer to ilcrease croduetimi, nor'otintibnu were c,,nduoted lo
!':oviots in "abruary 1952, to take ma:- the antirn pro7ise2 of t/ta :or=
T2,uussinf NAG, (I)
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At a conference held at the plant in mid-February, General Ylna:;e:c Yesakav
(fnu) announced the following final production quotas for 262:
Radio tubes (45,000 are for T-2 TV sets and 2,.0(,00O tubes
the rest are for the :,oviet Zone If Germany)
9-inch ai tubes (45,000 are for T-2 17 sets 135,000 tutes
and the rest are for the V.SS.R.)
7-inch CR tubes for the U.S.S.R. 20,000 tuL.,!s
Oscillngraph tubes (2 - Ray tubes similar to
tr-e AEG 2068 B)
Various oscillograph tubes for the 3cviet Zone
of Germany
Yetal-ceramic tubes M,00C are fxr- the 1.173F;.J1.
and 5,000 are for the Sacnsemierk in Radebord
Sun lamp elements (Noehensonnen-Lauchtkor)
PRK 2 (230 watts
Sun lamp elementsRK 4 (12o watts) (for sun
lamp treatment in Soviet mines and districts
lacking sunshine)
MIRT ligqt tubes (,Puchtrcehren)
1,000 tubes
1,000 ',:albes
00C)tu'ees
12,000 units
,?J')00
101000 tubes
The production schedules for 19q.3 and '1954 were as follcms:
Radio tubes
1951 7(1!
(not yet establishetl)
T'etal-ce.raric (MK) tubes
150,000 500,000
9-inch GR tubes
250,000
5009'300
7-inch CR tubes
50,000
Oscillog:.aphs tubes (accoa.,-
ding to :pattern)
50,000
r,,000
General 1,!Sanager Yeoakov furthor stated that two sez-eles and technial spe-
cifications for the osci;lograph i:ubes? which are similar to the kEG 2068 B
type, had arrived from the U.3.3JLL He said that workSnops end aachinery
would be planned on the basis of the production schrtfLed fur -753 tand
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5, Data extracted in iebruary 15.52 free reort forwarded to :c.n11:Lers con-
Corning theproductive cnpaeity fur meal-ceraric (0). tube, lndic;Aed. that
the lanthly production. of the weldinc machines for Vubes wcrkinE two
shifts, 1.1as 7,500 I.thms. This capacity cannot he increased 7.:!f.thut new Tachine
The produrtive capacity for cathodes for 77-tdbes was 9?000 ttens per.mnt.;:1-
The capacity of the special tiAbe pump '4tiich was also used th.e. .production .of
!a-tubes was 15,000 pieces per north. The ocity of th totfield was 73,0
items er nonth. In order to ilicreae the capacity of the HI nant, test transf,ft.
(Pruefseuder) were manufactured by CF.EM..
mr-nxtati .PrIr Ralaacta
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c7R
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6, Starting in late February 1952, the new Soviet plant management attempted
to reduce the number of fanny CR tubes by improvinz methods and by issuing
new acceptance soecificatjons J.so, the settling process (Setteltechnik)
was changed to the rapid setling method (Schnellabsetzmethode), which re-
duced the time required for this process to 90 minutes. The quality of the
grids, especially their resistance against burning out, was considerably
improved by this procedure. lOt only the cethode components, but also other
components to be built-in, were vacuum annealed to achieve a longer service
life.
/-
a The 1950 development project of the HF plant included the development-of
carrier frequency transmission installations and accessories (Zusatzein-
richtunc) for carrier frequency telephones for the power generating in-
dustry; developmant of coupling equipment for MT, development of El:IT one-
-side band sets (Einseitenbandgeraeten)? remote control devices, development
of a 12 (20)-channel carrier frequency telephone system for no-load cables
(unbelastete Kabelleitungen); conversion of already laid cables to the U.-
-system, development and construction of test equipment for audio-frequency
long distance selectors (Tonfrequenz Fernwahl), development of an audio-
-frequency call transformer (Rufumsetzers), development of a teletype using
sheet paper (Blattschreiber) and, a simplified teletype machine, work on im-
pulse code modulation based on the article "An 1:xperimental Dulti-channel
Pulse-Code Modulation System of High ,,usality" b: LA0Me,echem and E. Petersen;
ard development of a working calibration circuit (Arbeitsercnkrcres). Develop- ?
ment ?projects ftr 1951 included work on remote control installations, a
coupling filter for EWT equipment, an all ourpoee amplifier, transmission
level recording equipment (Fegelbildgeraet), radio ampliCier frame (Rund-
funkverstaerkereestell), superheterodyne adapter (Ueberlseerungsvorsatz),a
sound voltmeter (Geraeuschspannumosmesser), a voltage anslyzer for frequency
analysis and LepUlse code?modalation, The laboratory for oscillation quart-
zes, which was closed after several experts went to lest Germany, was
\over in June 19t1 by Dr. Dauer (ftu). A search was being made for crystal.
\grinders in order to start production in this laboratory (4)
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a conference concerning the produAien of oscillation
quartzes was held at the HF :plant on 14 June 1951, Those preseAt at the
conference were R. 1.7ueller? manager of the HF plant; Lorantz (Thu), mane-
ring engineer of the IT plant; Dr, Eckart,(fnu), chief oI the experi-
mentel plant; Graduate Lnrineiir Fischer (nu), plant manogel of the VEE Carl
Zeise; and a hieh-ranking police official who annolalcee ;hat orders for
about 100,000 oecillation quartzes would be placed in the near future. It
was stated that despite the departure of Dr, ';:ethe (fnu sod Dr, Oerer (,'nu)
the ,,eiss firm still had a number of experts who would oe able to maintain
mass production of oscillation quartzes. Since '',WO of th 'ri; plant seecal!ste
on tening (Abst:mmen) oscillation quartzes went to -'.est :or2risany in mid-195:,,
it wes arranged that the Zeiss firm would also tune the 4uartzes, The equip- 25X1
ment required for this work was to be supplied to the 2,C:,.,92 firm by the HF
Plant. Another topic discussed at this conference as tte erertare of quartz
crystals, The 2,0iss firm had received 87 kg of quartz\
9, The IT" experimental laboratory was building equLpmont wertLA 80,C00 eastmarks
for the Zeiss f_rm, This equipment was to be used :or dxillne boles in draw-
inr diamonds by the use of electronic probes (Electrorxnaerde). Tests on
small glass plates were said to have been successfu2,,,
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IICA (Radio Corporation of ,merica) -1100S
had been the principal item produced by the Tube Section, I
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after the experimental development of the tubes rno comloted? aii docu-
ments, drawings, production specifications and samples were coLpiled by the
section which had worked on the development and were then prepared by the
Publication Section to be sent to the u-s?s.n./ [Ill tubes had 25X1
to be exact duplicates of, and interchangeable with, the patterns, both mechan-
ically and electrically and that minor deviations from the standard design
were pernissable only if all the electric qualitios were etaineth DecaUse
of their enormous requirements, the soviets insistod on a permanent increase
in the production of certain types. For example, they demanded a monthly pro-
duction of 3,500 6AC7 type tubes and 1,000 6 AG7 type tabes The return of
types already sent to lloscow was also discussed, The adviser on glass tubes
was Major Cherepnin (Thu), a graduate engineer and an expert on tubes who'
was familiar with. the RCA methods and had all tho necessary RCA documents
Els superior was 1:ajor .fnu) who came from one of the.13iltic
countries and Tas relieved in early 1949, allegedly because of profiteering?
Eis interpreter and secretary was Captain Voronkov (fnni,
11, The development orders submitted in 1951 were estiiaatd at 7,800,000 east-
narks. t. total of 127 development orders, 7:1Eich T:(2-.!:a called planning-subject
tasks (Themenplanoufgaben)? were received in 1952 Of this iootal? 54.
originated with the Soviets,,
Further development of various RCA-typo tubes for TV purposes -Aas to be com-
pleted by late 195?, jrders received prior to early Februarj included the
developeiont of the ::),J6, 6 AL5, 6kG5, 6'41 and 6,\Ic, 5 types,
13, Tn FebrLary 1952, laboratory samples of the ',cathode were ,)sed in making
tests 1 es',ablish the permissibl.-! variations, Tae I-enthe was also
thorouf-Lly tooted -,ad completed for nroduction at ibe sume cime, L test
cathode l'Or t'he LD 12, which was jubjected to a load of 200 uzjillanres
achieved a service life of 1,500 hours under those tests:, because ::?ne tungsten
in the cathode vapy!..ized extensively, The tube-researchers concluded that
insulation defects resulting from the vaporization, as wel3 precipitation
en the 'calls of th':, tubes, would acssibly result in variati-ms of capacity
and the so-called :.-effect, and taerefore believed that it niCat be necessary
to redesign ale tan_cas, it was plahned to equip uctal-ccravic tubes ,2nd laor,
high-lood rectifie tubes, such as those used in elecaronic controls, with
L-cathodes, A specolist atteaptei to sinter rhenium by a process similar to
that used for tunt-Ae.1, (6)
l. The delivery of st, bilizers, which ,7-ould worl even is mo'Jin-: vehicles, was
urgently demanded by the Sachsenwork in, -Radeberg,, CT the requirents to be
met,-, stabilizers uith glass bulbs were refused and the developlort of
metallic 7,ZS urged
15, The EP04,D00 type "arE,, a eater-cot:lel, extreme prcesvre, pein'6 light tube
(Eoecl-strne-Punki_cht-Lampe), w...th an inner bulb or quart and an outer
bulb of nardened gldss, was not yet in production An e7,_3:1-, Ifl52 The develop_
nent of thea lamp v-c ordered by -le officials of -he :.,.S di and the
Soviet Zone of Gery.snv in 1950? Ia r2os initiated 1) adviseru Ihien (fnu) and
Eopeef: (fnu), The development Was registered at the plant an a .3eviet project
hp-,=?ever? ,:raL financed by the Carman Govc-rri:ent, In 1'2,51, eight persons
work el ecclusively on the dovelopme7lt or this or 3C-17iCL! ci about
500 hours was attarnech. Sim sample were delivercd to the state Planning COMMIEBIE
and six nore wsre sent to the ?lir,. ;',erelopment Trotie,uce in a,,ofdlsber7, To
dote, no prerarati(is '.'or the proeuction of this :Lav-p iave been made, The
necessar;.7 investments were ostimaled at ;10,000 to 50,000 sestmorks. A total
of 100 lamps of 7TC-500-4ype produced per men6h,
(mu), dArector of the r..cri-Coneuctor Cost .:leparent, (Kosteostelle-
-Halbleier) was re2---sible for lha cevolopnest rx! transistor (Transitorch),
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He tried to develop ? an n-p-n junction-germanium-transintor, but failed to
diseover the correct impurity degree of germanium, In January 1952, the
plant therefore ordered a study of the technical literature on semicon-
ductors which was available at the _America ;'ouse,
17, The HF Plant received an order to construct 20 television sets of the latest
design for the U.doS.R. (L')
17- Zero-slot (rullschlitz) magnetron tubes 2332 A and 2332 1', -:Tere.manufactured ?
as components Of the field -intensity measuring instruments which were being
developed and producod at the plant, ::agnetron 'XS 1000, of which a specified
number -mu to be built, was. developed by.Steimel (fnu)? Fritz (fnu) ard
Vinzeilorg (fm) in. 1944, (9) .
19 The Soviet planning order for the development .of a 2-ray C2L osoillograph,
with an amplifier for 20 cycles he 50 kcs and with a writing seed of 5Q
km/s, 7,-)71s comoleted in early 1952
20, The following directions concern :ng the handling of Soviet orders wore issued:
The preliminary drafts?of these orders must ? be submitted to the Soviet management of the plant concerned about three months before the beginning of each
calendar year., The actual orders are to be placed before late :ebruary and afl.
specifications conoerning the order must be submitted at tle same tine, The
Soviet orders are not considered as being" completed until thenal reports ??
were written in Cerman, These reports were translated. in :v.escow, These reports
were translated. into i.ussian at the olant, only in cases where it was absolu-
tely certain that production of the items concerned was to ne earri(d out in
Soviet..;one p3 ants. Questions by the plants concerninc:, the. Soviet orders vo.re
answered byoOoscove uithin about two weeks if the qtlestions concerned develop-
ment work, :uestions concerning production, sech as reouess for permission.
to use substitute ziaterials or to change the acceptnnee specifications, wore
answered in about ?tour weeks, If the.olant refused orders becnnso of insaffi-
dent capacity, the orders ehabli-iv t:ne plant to increase ttleir capacity 'J.ere.
not received for thleast eight vee's after the reftsai, .
21., In February lf.)52, general mar.. Yesakov issued an order th!,It no expert orders ?
could be reiThsed. because of insufficient capacity_ he especlaily insisted on
increased exports of water-cooled transmit:1er tubes to sntellite countriPs:
The ITescho-Kahla Plant 'was ordered to produce metal cerardes for the 1952 .etri-
-ceranic (:'E)? tube Prograio Luminous material (Leuchtetoff) for the 1952
Cl
tube production progrer was supplied by the EFT ?LauchtstoeyI in lad
Lichen-
sterLovever, this olont wns only able to supply hnif of inc reouired materie-J.
in granulated form and the remainder was sottlinf: materiel settelbarer Leuct-
stoff)o During the ieriod.fro7.1 25 to 29 nbavcXn 1^?P ') iron
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purchosod.by the plant.
P 2 iron TIns also reoci.e, .Lloo tole ...rizeco Liteell:or, Ltd-, in
erh
de. In an attempt so alleviate the T,err.nnent sliortzT:co of mal,eril, the rollin.
mills in :llerhnne were. alleedly oi dered. loy the 1:lnistry to p( pr
2 i.Ton
In 1951, it was stil1 possible to equip the f 0. tube with leaters of ?the.a; 3
Telefunken tChe, which were still available. The plont protuction of heaters
resulted in considerable .waSte. The ineuloting r.r,ss brit-cle eurinc thP
sintering :'recess end the tunrstm. filaments were of poor qtalltj because part
of the tungsten acid had to be obtained. from impure tuJvist&i: vJate- The RPT
Ferliner Gluehlampenmerk (Incandescent Lamp Works) was I77.42ed .w:,_th the same
difficulties, :ttempts were made to cliain tiviEste.n fitanen-tn from Austria.
via S,..viteriand or Sweden, The Rn Plant in. Erfurt a112Eedl:v- receivd. turesten
filaments in this manner.
P. Fireproof tubes n-r temperatures up to 1,600 degree;,_-; centierade, required for
annealing ovens used in the production of tubes..
rinp,er firm in ljuesselein.'
22
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.co.oes manufactured in the
oi uormony ay the r,:cuh7;ns Foarcelain ;:orks ':',7euhaus-Schierschnitz
uheeo ttlo Too. 7 7 :)1T--J?
codnng .1,43j deEreeo centicrade? Eb.o Fescho-Kahla Ilent was therefore ordered
to develop fireproof tubes, (12)
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In February 1921 twuineL bineers arrived at the plant to obtain infor-
mation, isakov (frill) inspected the radic-: tube manufacturing section, Griorcieff
(fnu) was interested in the producten of CR tubes and gave. advice on prodAlc-
tion methods, thus iuCicating that hewas an expert. The Soviets were not 5-4-
terested iA experimental. ,work. The p]ant was also inspected by visitors from
China, Euncary tInd. Poland,dn groups of 5 to 7. Dy order of the plant manage-
ment, these visitors had free access to all sections of the it aid were gi-ven.
any information they wmted but they were not given any documents. (15)
Copies were made of a letter from the teclnioal planning section, dated 25 Jan-
uary 19520 concerning the increase in the production per worker in 1951 as con-
oared with L'ecember 1950, and of a letter, dated 23 January 1952, from the man-
agement of the experimen station to Director Reimann (fnu) and Director
(fnu).
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