THE VOROSHILOV ELECTRICAL ENGINEERING FACTORY

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00810A004900790009-6
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 9
• Document Creation Date: December 20, 2016
• Document Release Date: July 16, 2007
• Sequence Number: 9
• Publication Date: May 1, 1954
• Content Type: REPORT

Approved For Release 2007/07/16: CIA-RDP80-0081 OA004900790009-6
INFORMATION REPORT
COUNTRY Bulga.r *
SUBJECT The Voroshilov Electrieal
Engineering Factory
DATE OF INFO.
PLACE ACQUIRED
This is UNEVALUATED
This Document eor3tains anon affecting the Na
tionai'Defense of
%boFilft
saes, within the mean
ing of Title 28, $6 v TIi4, otthe U.S. code, air
amended. Its t 3i7` revelation of its'eon is
to or receipt 7, a t4ilattt person is pro'l i
ted
by law. The repro 1ue91t is prohikia '
DATE bfS't ft 2"3it~mbr 3.954-
NO. OF PAGES
REQUIREMENT N0. RD
THE SOURCE EVALUATIONS IN THIS REPORT ARE DEFINITIVE.
THE APPRAISAL OF CONTENT IS TENTATIVE.
(FOR KEY SEE REVERSE)
'AW
1. The Voroshilov ELeetrieal g neering Factory is located in the norttkea
part of. Sofia, in the industrial quarter of Zakharna Fabrika. T. in
building consists of a s-story central building and two:3-story figs adjoin-
ing t h e - - , p s. of the cen tral building at right angles. Near the main
building; ,re three ground-floor buildings. One is used as,,afoundry (Leyarski
Tsekh); the second is used as a forge; and the third is used as a joiners'
shop"(Durvodelslti Tsekh) for the manufacture of radio cabinets. A separate"
ground-floor $trxc,ture is used to house-the personnel of the DS (Durzhavna
Sigurnost; Seoihity Police), wearing civilian-clothes, responsible for the
internal security of the works.
Underneath the main building are a basement, and a sub-bj0A06nt-. The f5sub-base-
-ment is used for the storage of heavy raw materials aYit 0
04, containers
for welding (160 atmospheres). and as a dump number of worn-out
machines. Thee machines are of Soviet, Czech manufacture. Con-
tainers of chemicals needed by the factory are also stored here. The basement
is used for the storage of finished products as well as of spare parts produced
in the plant.
The factory covers a plot approximately 350-400 x i00-500 meters, fenced in on
three sides. The northern and eastern sides are protected by three barbed wire
fences; the southern side has only one barbed wire fence. The western side is
formed by the front of the main building. The barbed wire fence is about two
meters high. There is a guardpost at each of the four corners of the compound.
These posts are manned by armed police guards, each carrying a Soviet-made
Shpagin automatic rifle. In addition police guards armed with the same type
rifles patrol the compound along the fence. At night they are accompanied by
three or four watchdogs. Early in 1952,,, after a group of alleged satoteurs was
seized, the guard of the works was reinforced. The factory was then declared a
military plant.
SECRET-U. S. OFFICIALS ONLY
FSTATE X ARMY x NAVY
X AiR x FBI AEC ORR v x
(Note: Washington Distribution Indicated B
"X';
Fi
ld Di
"
y
e
stribution By
a)
Approved For Release 2007/07/16: CIA-RDP80-0081 OA004900790009-6 = "Y '
 Approved For Release 2007/07/16: CIA-RDP80-00810A004900790009-6
USSR; they originted:.in Leningrad;
a. Five or six magnetizing machinearf dspeaker magnet; these machines wee
the length.of the room. The mechanical t-in this department inclui
manual and is done on the conveyor belt system with `two belts running through
4%G11 V1"al uuiiu a.u~. oeventy =-per cent o its CUU to 15U workers-are women employ1
in the assembly of radios,-amplifiers, and loudspeakers.,, Ti `work is mainly
SECRET--U. S CIALS ONLY
The Assembly Department (Furvi?Montazhni Tsekh) occupies thereeeond floor of the
in 19lt9;
these small machines are on tables;
pang.-Transformatoreny" Zwischen Transformatoren } s
b. About 2O 'W re-coiling machina for the production- of transformers ("Aus-
tubes which are imported from the USSR oslovakia Hungary, and East Germany.
In addition the following articles a4 l uced in this department.
The Department for Radio Spare -aProduction (Tsek ; Prpizvodretvo Radio-
Chasti) occupies the th i;pdf1oor a central building . All ftrt
components- produced in- the Machine Department are assembled here, as required,
for radios, amplifiers, loudspeakers, tel ones, and telephone exchan
except blocking condensers which are d. in the Assembly Department and
d. Four ttautomata,11 one Soviet and three Hungarian Orion make, for the production
of condensers of the blocking t e (not electrolytic); prior to 1954 ready-
made blocking. condensers wer$ AaAported from abroad.
W arov works
C. One or,two electric spot welding ma of Bulgarian make, from the Vasil
K1 -
Rotating condensers for:r os;
b. Relay parts for tho se of automatic telephone exchanges;
c. Small 5-watt dynamos for militaryti-A- telephones
e. Ch mical rheostats and.xheoxits made of wires from an alloy of various
d. MembrW*s and microphones for telephone sets;
f. Telephone dials;
h. Jacks used in telephexchanges and radio installations;
i. Devices for voice tuning and wave changing.
g. Commutators for ra:die~ and telephone sets;
6. Most of - the work in this department is done by hand. This department has about
12 sma1 machines, made in the Bulgarian DMZ machine factory (Durzhaven Mashin-
ostroiteien-Zavod), including hand presses, grinding machines, and abrasive
machines.
a VLIO cuiu -LclGjAuv11G r,aeuwiges ~-.vseKn
Za Montagh Na Telefoni I Telefoni Tsentrali) occupies more than half of the fourth
floor of the central"building. About 60 to 70 workers are employed in the assembly
f t
o
elephone sets and automatic and non-automatic telephone exchanges. The only
machines in this department are various measuring devices. The factory now turns
Approved For Release 2007/07/16: CIA-RDP80-00810A004900790009-6
with 2,
OOMWe' onne,eti,ons was executed for the town of Pleven. In July 1953 an exchange
1952 it was capable of. producing only smaller exchanges, because all the necessary
parts had to be if orted, mainly from East Germany. Since 1951 or 1952 the factory
has been ec :truc ing; automatic telephone exchanges for un to 9-nnn ei~hawrihar~
RET--U. S. OFFICIALS ONLY
 Approved For Release 2007/07/16: CIA-RDP80-0081 OA004900790009-6
for 500 subscribers and another for 100 were built for the new industrial town
of Rudozem (N 141-29, E 24-51) which has been under eonstruction,in southwest
Bulgaria-since 1945. In 1951 or 1952 a large exchange. was supplied to. the town
of Dimitrovgrad.
8. The Military Production Department, which is graded secret, occupies approximately
one-half of the fourth floor of the central building. All those employed here
a 1
re
regu ca army personnel wearing civilian clothes. They number about 80,
mostly technicians and engineers sj who,are drawn partyom the signal Unit
(Svurzochni Polk) in Sofia and pa 0,-.1y.-from the DS. In"taddition- to effecting
repa-rs of transmitters installed in Soviet T-34 tanks, this department pro-
Electrolytic condensers;
Ceramic rotating condensers;
a. Small portable transmitters in suitcase shape, with up to 30-watt capacity;
especia 1y the following:
a. Special tubes;
foreign countries, mainly the USSR, Czechoslovakia, East Germany, and Hungary,
? 1
c. `Mine detectors;
d. "Dipol" aerials (for wave concentration
b. Transmitters in haversack shape, with up to 50-watt capacity;
A considerable number of the spare parts for this department are' imported from
f. Quartz stabilizers, imported only from Czechoslovakia as they are regarded
a.a hact.
d. Ceramic blocking condensers;
e. Crystals for microphones;
10. The Machines Department (Mashini Tsekh), which effects the cold processing of
parts, occupies the entire ground floor of the central build%n g. Machines in
considerable number are of the "Revolver" type. Only the Bulgarian DM7 lathes
a erman make; the East German lathes work at a special high Speed;.
a. Large and small lathes, some about four meters long, of _(ech)S'ov.e.t,..Swiss,
and E W. G
b. A large number of milling machines, all of foreign make;
c. A large number of drilling machines;
d. Vertical and horizontal chipping machines;
e. Planing machines;
SECRET--U. S. OFFICIALS ONLY
Approved For Release 2007/07/16: CIA-RDP80-0081 OA004900790009-6
 Approved For Release 2007/07/16: CIA-RDP80-0081 OA004900790009-6
SECRET--U. S. OFFICIALS ONLY
f . Three or four friction p resses, some
approximate power of 35 tons;
g. Three or four 5-ton eccentric presses;
12. The Auxiliary Department (8pomagateleh Tsekh) comprises the following four sub-
departments, all located on the first floor of the southern wing 'of.the main
b it d ? '
served this time the machine=s are transferred to other"factories where less
precise work is required.
8 i s meehanaced equipment every two to three- 'a s; after they have
technical processes, have been used or onl two o three "
' Fears. tort''
ehan es "t
11. The machines in this department, ed ,in e.mall ~roups?accordin? +o the
h. Grinding machines;
i. Automatic cutters;
rolling machine, electrical ovens for various hardening praeesseswof parts,
and 1 rr
t
t
P s s equipmen #ncJ udes three or four _OO-ton or above eccentrcr
The Press DF"artment (Metalno-Pr~sov Otdel), responsible for the processing
..-
Of arts? i +
a. The paint shop, with compressor, :coloring devices;
installations of the factory, includln :tie generator placed in the cellar
of the northern wing of the main buildkg t his generator wa3`nstall ed
in 1953 at the time a`generator of the new thermic power station in the
Nadezhda quarter of Sovia was sent to Czechoslovakia for repairs; the
generator of the factory supplies only a fraction ohe electricity demand;
most of the current is still supplied from the outs! e, mainly from the
power station in the Nadezhda quarter;
c. An engine repair shop;
13. In addition to the above departments the factory also has the follc-wi
e ec
riaal ovens for not' processir cif steel=.
men, located on the third floor-of the southern of the main. building;
b. A technical control department for the products ofthe factory;
a. A construction department with about 40 engineers, technicians, and crafts-
c. An experimental laboratory;
+va a.ci
Radio-Prom radio factory at Gorna Banya which was liquidated after the establishment
of the Voroshilov factory. No changes in construction have been made since then,
except that the East Germany tubes formerly used were replaced by Soviet tubes in
----- --- ----? -~ ..v vv .vi c . c 'MoGM My (41G
Voroshilov factory .for the first time in 1950. They have six tubes and can receive
d. A special department producing medical nstrumente, such as X-ray installations,
Thermic electrical appliances, appliances for bloodless surgery, and appliances
F..< ..1A-- ----1 -
The factory *nrnduces five types of radio sets, Republika I, Republika II, " 013,"
M7ralr it` eni_ .1 , I .. ' _ . - . - - -
SECRET--U. S. OFFICIALS ONLY
Approved For Release 2007/07/16: CIA-RDP80-0081 OA004900790009-6
 SECRET=-U, S. OFFICIALS ONLY
-5-
1951. Prior to this tie soviet tubes were not available in Bulgaria. The two
Republika types are Jh67most expensive ones: are considered luxury products
15. The "504" set has four tubes, but can re ",also on three wave systems. The
model dates from 1950 mass production',., -ea in 1951 ---The tubes are of East
German manufacture. From # lae~inr n of 1954 to May l95! produ Lion was con-
centrated mainly, o A io set because.i.t was destined. for export
to China. The ouut, with an 8-hour work day, is bout "700 sets per month
,
but other typ 'Are also being produced at the same time to a certain extent.
16. Marek is'the latest model,of the Vorosh.lpv,'factory, mass production havinc
started at the and of 1953- The set has 41A-tubes and three ware systems.
The tubes are products of-various countriesr
mainly Hungary andGzechoslovakia.
17. "Pioneer" is a popular radio. It has four tubes and only one wave system for
medium wave. Mass=:;production started in 1952, after the monetary reform.
18. The Voroshilov factory turns out three. types of loudspeakers. The daily output
of the smallest louds-eakers (up to 043 watt) is.about 200. The daily output of
medium types (up to two watts) is out 80. Large loudspeakers (up to 25 watts)
are turned out at the rate of about 50 per day.
19. The number of workers and administrative personnel of the Voroshilov factory totals
about 3,000. The majority of-,workers., with a- large' proportion of women, have had
no vocational training. In.order to remedy his situation, the factory established
in 1952 a specipl vocational school "lzaya Shkola), for the training of suitable
cadres. To be admitted pup; must have completed seven grades of elementary school.
About 50 pupils are admjtt*d`each year. The curriculum comprises two years.
20. Three departments of-the factory work three shifts per day: the Military Production
Department, the Machines Department, and the Press Department. The other departments
work one shift daily.
21. The Director General (Glaven Direktor) is head of the Voroshilov factory. The
Technical Manager, also'ealled Chief Engineer, is responsible for machinery and
production. He is also in charge df _ the Constructs on Department. The Chief Dis-
patcher (Glaven Dispecher} controls?the`smooth flow of production. There is a
radio-telephone exchange at hi.s da osal which enables him to comm>nioat,e di.rp.rt.1v
and quickly with all'sectioribhe works, as well as with the Ministry of Electricity.
The exchange is installed on the second floor of the northern wing. There is a
Manager for
Vocational Training (Nachalnik N a.,eknichesko Obucheniye), a Manager for
Technical Control. (Nachalnik Na Teknichen Kontrol), a Manager for Security at Work
(Nachalnik N a Tekn ches a ezopasnost), a Chief Accountant, and a Planning Manager.
An important personality, with decisive influence, is the secretary of the Party cell.
22. Most of the administrative off-es are located on the second and third floors of the
northern wing, the remainder in the second story of the southern wing. The first
story of the northern wing houses, among other things, a store room for defective
radios which are sold to staff members at reduced prices, a ,canteen, a buffet, and a
room for charwomen.
SECRET--U. S. OFFICIALS ONLY
Approved For Release 2007/07/16: CIA-RDP80-0081 OA004900790009-6
Approved For Release 2007/07/16: CIA-RDP80-0081 OA004900790009-6
 Approved For Release 2007/07/16: CIA-RDP80-0081 OA004900790009-6
29. The following is the legend for the sketc?, included as Appendix Aon page 8.
15. Entrance for the staff of the Construction Department
16. Entrance to the -administrative offices
1. Central part of the factory building, five stories
2. Southern wing, three stories
3. Northern wing--three stories
4. Guard house-,46, personnel)
5. Foundry
6. Forge
7. Garage
8. Joiners' shop
Y~r
9. Police guard post
10., 11, 12. Police Guard post
13. Elevator for materials and firshed products
14. Check post for entrance permits
2L, 25, 26. "Official Entrance' (for important visitors and organized groups)
27. Gate for vehicles
30. The following is a legend for the sketch included as Appendix B on page 9.
1. Center of Sofia
2. Voroshilov factory
3. Zakharna Fabrika(sugar factory, not in operation
17. Entrance for the'workers
18, 19, 20. Entr.ice to the main building
21. Entrance to the Guard house
22, 23. Entrance from the courtyard, main building
SECRET--U4 ,OFFICIALS ONLY
Approved For Release 2007/07/16: CIA-RDP80-0081 OA004900790009-6
 Approved For Release 2007/07/16: CIA-RDP80-00810A004900790009-6
omment: For additional information on
5? Sofia-Nadezhda highway
6. Apartment houses for employees of the
7. Workshops for arms repairs of the DS,
8. Terminal of the No. 3 streetcar, also
Voroshilov factory
with adjacent shooting
bus stop for employees
12. Direction of the Zakharna'Fabrika'Railway Station (suburb)
13. 'Direction of the Poduene Railway Station (suburb)
factory
9. No. 3 streetcar line
10. Dirt track
11. Concrete bridge
lb. Direction of the Nadezhda quarter` of Sofia
of
the Voroshilov
the Voroshilov factory
SECRET--U. S. OFFICIALS ONLY
SECRET--U. S. OFFICIALS ONLY
Approved For Release 2007/07/16: CIA-RDP80-00810A004900790009-6
25X1
LJ/~ I
 Approved For Release 2007/07/16: CIA-RDP80-00810A004900790009-6
SECRET--U. S. OFFICIALS ONLY
-8
Voroshilov Factory,
SECRET--U. S. OFFICIALS ONLY
- Approved For Release 2007/07/16: CIA-RDP80-00810A004900790009-6
 Approved For Release 2007/07/16: CIA-RDP80-00810A004900790009-6
Approved For Release 2007/07/16: CIA-RDP80-00810A004900790009-6
SECRET--U. S. OPPICIAIS ONLY
60-7
m.~