MANUFACTURE OF RADIO SETS FOR MILITARY PURPOSES

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00810A005900310003-3
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 9
• Document Creation Date: December 21, 2016
• Document Release Date: March 6, 2008
• Sequence Number: 3
• Publication Date: February 16, 1955
• Content Type: REPORT

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CENTRAL INTELLIGENCE AGENCY
INFORMATION REPORT
This material contains information affecting the Na-
tional Defense of the United states within the mean-
ing of the Espionage Laws, Title 18, U.S.C. Sees. 793
and 794, the taneaileeioa or revelation of which in
any manner to an unauthorized person is prohibited
by law.
SECRET - U.S. OFFICIALS ONLY
COUNTRY Czechoslovakia REPORT
SUBJECT Manufacture of Radio Sets for Military DATE DI
STR.
16 February 1955
Purposes
NO. OF PAGES
25X1
DATE OF INFO.
REQUIREMENT
REFERENCES
THE SOURCE EVALUATIONS IN THIS REPORT ARE DEFINITIVE.
THE APPRAISAL OF CONTENT IS TENTATIVE.
(FOR KEY SEE REVERSE)
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]?. The. Julius Fucik Plant of Tesla, National Enterprise,?Podebradska Avenue 186,
Prague-K oubetin, is currently manufacturing the following type;, (models)
of military radio sets:?"',
a. Type PKV 1: A short-wave receiver, which is a copy of the German set,
Mark E-10 KA. The Czechoslovak PKV 1 has been improved and has a better
performance than the German original. It has 11 vacuum tubes, type E 22
F/RV 12 P 2000, which are being manufactured in the Tesla-Eloubetin plant.
b. Type 256: A short-wave transmitter operating in the eight-neter wave band.
It has two vacuum tubes, type RL-12 P 10. Its output is 10 watts. This
transmitter is designed for use in vehicles.
c. Type 267: A short-wave transmitter, rather similar to the 256 model, but it
has an output of up to 50 Watts. It is equipped with tubes of the type
IS 50.
d. Type Lambda: This is a 13-tube receiver which operates on nine short-
wave bands.
e. Type Jalta: This is a 200-watt short-wave transmitter.(see paragraph 2 below).
f.. Type E 10 AK: A 10-tube receiver operating in the 80-meter band. It has
been designed for use by the air force.
g. Type ES 10 It: A 35-watt short-wave transmitter designed for by the air
force. It operates in the 80-meter band.,
h. Type FUG-16: Short-wave receiver and transmitter (see paragraph I+ below).
i. Type FUG~-10: A short- and long-wave receiver and transmitter (see paragraph
3 below).
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a. The Jalta-radio set was seen in 1946-1947 in the building of the
General Staff, in the Ministry of the Interior in Prague, and in the radio
center of the SNB regional headquarters for Bohemia in Prague-Dejvide. There
were. protracted discussions in official places during 1946 as to who was
to receive allocations of the Jalta radio sets: the Army or the SNB.
all major SNB posts in Czechoslovakia were
equipped with this radio set. Ground stations of SNB air patrols also received
these radios. This informant does not know whether the set is being used also
by the Czechoslovak Army.
b. Production: Several hundred brand-new Jalta sets remained on Czechoslovak
territory in 1945. During the war, the Telegrafia Works in Pardubice
had'been manufacturing parts for this set, and in 1947 the Tesla Works in
Pardubice2 began producing entire new sets of these Jalta radios.
(1) T ho set consists of receiver end transmitter, both for radio-
telegraphy and telephony.
(2) Wave lengths are in the short-wave band and between about 30 and 120 meters.
(3) Output: telegraphy 70 watts.
(4) Size: about 35 x 35 x 75 centimeters.
(5) Weight: about 60~kilograms,
(6) Power unit: this part of the unit is "universal", i.e., it can
be connected to AC and DC current as well as to automobile batteries and
power generators.
d. The unusually heavy overall weight of the set is caused bylthe rather
complicated power unit of the set, as well as by the field construction of
its steel frame, which is built to be very strong.
3. Receiver and transmitter F'UG-10:
a. The FUG-10 is a receiver and transmitter which operates both on short
and on long waves.
b. Technical description: The receiver is equipped with vacuum tubes type RV 12-
P 2000. Each receiving- unit contains eight tubes of this type. The trans-
mitters are equipped with transmitter tubes type RV 12 - P 35; there are three
of these in each transmitter. Both the transmitters have a maximum power output
of 35 watts. The short-wave receiver and transmitter operates on bands from
3,000 kilocycles to 6,000 kilocycles.
c. Operation: The vacuum tubes in the transmitters must be,preheated.
d. Manufacture and use: The FUG-10 set is of German design but has been improved
and was until recently being manufactured in Czechoslovakia. As of July
1954 its manufacture had 1^een discontinued. Vacuum tubes for the equipment
are manufactured by Tesla-Hioubetin. It is very widely used in the armed
forces, especially in thc. air force.
e. Legend to attached Figure 1:
(1)
The Short-Wave Receiver:
a. Reception amplifier
b. Dial, calibrated in kilocycles
c. Coils for rough and fine tuning
d. Wave-band r,771.tn11
e.. Plugs for ea4 hbnes
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(2) The Long-Wave Receiver:
a. Dial, calibrated in kilocycles
b. Coils for rough and fine tuning
c. Reception amplifier
d. Wave-band switch
e. Plugs for earphones
(3) The Short-Wave Transmitter:
a. Band switch
b. Dial of rough frequency setting
c. Dial, calibrated in kilocycles
d. Dial for fine frequency tuning
(4) The Long-W:ve Transmitter:
a. Dial, calibrated in kilocycles
b. Dial of rough frequency Setting
o. Dial of fine frequency tuning
d. 'Band switch
(5) Main Outlet with the Antenna Segment:
a. Switch for setting rough output when tuning the transmitter
b. Binding post for ground
a. Milliampere meter for measuring transmitter output
(antenna tuning)
d. Binding poet for, antenna
e. Switch to milliampere meter.for measuring grid voltage
f. Coils and soalJ,s for setting of maximum output
(6) Voltage switch for use with battery
(7) Switch for preheating of vacuum tubes
(8) Filament switch
(9) Operating switch
(10) Power switch for using outside current (from network)
(11) Storage of spare tubes
(12) Binding posts for telegraph key (button)
(13) Binding posts for earphones (flying helmet)
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Figure 1.
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~+. Radio set FUG-16: For details of short-wave transmitter and receiver set,
see Figure 2.
a. This radio set is very widely used in the Czechoslovak Army and on
air bases. A similar radio set, with only slight modifications, is also
being used on board aircraft. The prototype of this set'is German. It
has recently been improved by the Tesla Hloubetin plant, which is manufacturing
these radios.
b. Legend to Figure 2:
(1) Switch -- reception/transmission
(2) Jack for earphones
(3) Control light
(4) Main switch
(5) Built-in telegraph key
(6) Coils for crude frequency tuning
(7) Coils for fine frequency tuning
(8) Dial
(9) Output dial -- antenna tuning
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Figure
Power Unit
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5. Short-wave transmitter - 800 watt:
a. Legend to attached Figure 3:
Output indicator (millimeter)
Switch handles for tuning
Transmitter tube
Band switch
Coils for output tuning
(6) ";'Dill,,, calibrated in frequency.
b. It is equipped with a transmitter tube, type 253, with a maximum output
of 800 watts.
a. Operation:
When tuning the transmitter, the switch handles (Figure 3, #2) must.be
thrown to the right. Only when the transmitter is tuned to a maximum output
will these switches be thrown back to the left, and. the set can then be
operated. If the operator makes a mistake in this respect, he can burn
. ___J __I _99-- e4 A----- ---94-m.iA4-.d AM
but has"been improved and is currently being manufactured by the Tolls, Plant
or military-.purpos?s. This equipment is used mostly on air. bases and in
army communications centers.
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_g_
MR
Figure 3
Antenna
Tuning
c
Transmi
Power
Unit
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Tesla Works in i946.
the Telegrafia Works was ren
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