PARTIAL LIST OF ELECTRONIC TUBES USED IN CZECHOSLOVAKIA

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP82-00046R000300190020-6
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 6
• Document Creation Date: December 27, 2016
• Document Release Date: May 31, 2013
• Sequence Number: 20
• Publication Date: February 17, 1954
• Content Type: REPORT

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Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/05/31 : CIA-RDP82-00046R000300190020-6
50X1
SECRET
COUNTRY Czechoslovakia
REPORT
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50X1
DATE DISTR. 17 710.19b4
SUB3ECT Partial List of Electronic Tubes Used in NCLCWPAGES 6
Czechoslovakia
DATE OF INFORMATION
PLACE ACQUIRED
-SOURCE
THIS IS UNEVALUATED INFORMATION
REFERENCES:
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1. Below is a list of electronic tubes of all kinds which were produced
in Czechoslovakia or imported into Czechoslovakia before 1945 and
therefore were on stock there at the end of World War II, and also
of tubes which were imported into Czechoslovakia after 1945. The
import of tubes, in general, slowed down after 1948 and almost ceased
by 1950. 1.
Standard Receiver Electronic Tubes
2. Old receiver electronic tubes:
These tubes were produced in Czechoslovakia or imported there until
1945. They carried a so-called old designation which conformed to
the old Philips designation. These tubes were used for older radio
receivers of Czechoslovak production which were mainly produced
before World War II, in smaller quantities during the War, and not
at all after 1945. These tubes were difficult to obtain after 1945.
There were three groups of this type of tubes:
a. Standard receiving tubes:
Type Price per tube 2.
1.
A 409
82.10 crowns
2.
A 410N
82.10
3.
A 415
80.50 "
4.
A 425
75.20 11
5.
A 441N
156.80
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Type
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Price per tube
6.
A442
165.20 crowns
7.
8.
B 217
B 228
133.20
97.30 tt
9.
B 240
130.50
10.
B 255
140.20
11.
B 262
It
140.20
12.
B 406
94.50 11
13.
B 409
tt
107.10
14.
B 424
108.40
15.
B 4248
122.20
16.
B 424K
147.10
17.
B 438
94.50
18.
19.
B 4388
B 438K
0:11()0
20.
B 442
217.70
21.
B 442S
231.60
22.
B 443
174.70
23.
B 443s
123.70
24.
B 543
235.60 ft
25.
B 2038
171.90
26.
B 2042
238.40
27.
B 2043
242.70 It
28.
B 2044
271.60 It
29.
B 20448
232.80 It
30.
B 2045
238.40
31.
B 2046
257.70 It
32.
B 2047
271.60
33.
B 2048
249.40
34.
B 2049
235.60
35.
B 2052T
239.90
36.
B 2099
183.00
37.
c 243N
144.30
38.
c 443
208.00
39.
c 443N
180.30
40.
c 443Ns
194.10
41.
E 406N
379.50
42.
E 408N
227.40
43.
E 409
199.70
44.
E 424N
122.20
45.
E 438
217.70
46.
47.
E 441N
E 442
340.90
281.40 It
48.
E 442s
199.70
49.
E 443H
192.80
50.
E 443N
454.10
51.
E 444
224.60
52.
E 444s
101.10
53.
E 445
199.70
54.
55.
56.
57.
E 446
E 447
E 448
E.14149
224.60
224.60 it
224.60 It
224.60 11
58.
E 452T
209.40 It
59.
E 451
545.50 11
60.
E 453
217.70
61,
E 455
235.60 It
62.
E 463
268.80
63.
E 499
148.50
64.
F 410
784.80
65.
F 443N
862.30 ti
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b. Standard rectifiers:
66.
505
67.
506
68.
1018
69,
1201
70.
1560
71.
1561
72.
1801
73.
1802
74.
1803
75.
1815
76.
1817
77.
1831.
78.
1832
c. Standard regulators of old design:
79.
1904
80.
1910
81.
1911
82.
1915
83.
1926
84.
1927
85.
1928
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Tubes with supporting base imported into Czechoslovakia up to 1945
or produced in Czechoslovakia up to 1945, and, in a few cases,
until 1948. They were used for radio receivers produced in Czecho-
slovakia from 1940 until the end of 1945.
a. Receivers:
86.
87.
88.
89.
90.
91.
92.
93.
94.
95.
96.
97.
98.
99.
100.
101.
102.
103.
1?4.
105.
106.
107.
108.
109.
no.
111.
112.
113.
Type
Price per tube
AB 1
AB 2
ABC 1
AC 2
AH 1
AK 1
AK 2
AL 1
AL2
AM 1
AM 2
CB 1
CB 2
CBC 1
CC 2
CH 1
CK 1
CK 3
CI, 1
CL 2
D 105
D 404
EAB 1
EB 4
F12. 11
EBF 2
EC 2
ECH 2
80.50
72.40
163.50
130,50
203.90
263.30
243.90
192.80
239.90
152.60
177.50
96.00
87.70
201.10
130.50
219.10
267.50
286.90
230.00
249.40
255.50
227.40
102.90
93.20
93.20
196.90
292,10
243.90
crowns
TI
II
IT
It
II
It
II
11
11
11
II
if
11
TI
11
II
tt
It
11
It
If
It
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WS- Price per tube
114.
EF 1
483.50 crowns
115.
EF 5
163.70 "
116.
EF 8
183.00
117.
EF 13
183.00 "
118.
VC 1
152.60 "
119.
VL 1
242.70 "
120.
VY 1
121.
EH 2
219.10 "
122.
EK 2
243.90 "
123.
EL 2
223.30 "
124.
EK 3
250.90 "
125.
EM 1
160.50 ft
126.
EM 2
187.30 "
127.
EZ 2
104.70
128.
EZ 3
125.20
129.
AF 2
152.60 H
130.
CBL 1
262.00
131.
CCH 1
267.50
132.
CF 3
201.10
133.
CF 7
201.10
134.
CL 4
239.90
135.
CY 1
92.90
136.
CY 2
119.30
b. Modulators
137. VY 2
c. So-called "K" tubes.
These tubes were equipped with two-volt heater and were usually
used for receivers supplied with storage battery current.
These tubes were imported into Czechoslovakia until 1945 and
some of them, probably, were also produced in Czechoslovakia
up to 1945.
Type
Price per tube
137.
KB 2
73.90 crowns
138.
KBC 1
183.00
"
139.
KC 1
77.90
II
140.
KC 3
112.60
"
141.
KC 4
133.20
ff
142.
KCH 1
309.00
n
143.
KDD 1
23430
ff
144.
KF 1
170.70
ft
145.
KF 2
170.70
fl
146.
KF 3
183.00
it
147.
148.
KF 4
KH 1
183.00
202.40
n
ff
149.
KK .2
309.00
u
150.
KL 1
163.70
n
151.
KL 2
210.70
ft
152.
KL 4.
210.70
n
153,
KL 5
210.70
If
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d. Current regulators of later design:
These tubes were imported into Czechoslovakia by Philips until
1945. Some of them were also probably produced in Czecho-
slovakia up to 1945.
154. C 1
155. C2
156. C 3
157. C 4
158. c6
159. g
160.
161. C9
162. C 10
163. C12
Battery Electronic Tubes -- Also Called "b" Tubes
4. These tubes were used for portable receivers. They were imported
into Czechoslovakia, mainly from Philips, mostly between 1945 and
1948, and in a few cases after 1948. They were difficult to obtain
on the open market until 1948, and after this date it was almost
impossible to obtain them. This type of tube was not produced in
Czechoslovakia at all. The only battery electronic tube produced
in Czechoslovakia was DDC 25, put into trial production in the then
Philips AS, Prague IX (Hloubetin), at the end of World War II;
however, masa production of this tube was never begun.
Type Price per tube
DAC 21
DAF 11
DBC 21
DC 11
DCH 11
DCH 21
DDD 11
DF 11
DF' 21
DF 22
DK 21
DL 11
DL 21
DLL 21
pm 21
All-glass Tubes
5. UP 21 and UY 21 tubes were import0 into Czechoslovakia
in small quantities before 1945. Tney were not produced in
Czechoslovakia until the end of 1950 and, most probably, not after
this date, as there was no need for this type of tube.
180.30 crowns
110..70 it
? 201.10 II
140.20 Il
309.00 It
339.40.
234.30 234.30 It
183.00 tl .
180.30 tl
201.10 II
339.11.0 It
210.70 ft
231.60 II
339.40 tl
201.10 t1
lenpower Ssecial Electronic Tubes
6. In general, low-power special electronic tubes were imported from
Philips, but the imports were small both in number of types and
number of units.
? a. ?The Mil:Owing tubes were.:Imported into Czechoslovakia between 1945
and 1948 and were also produced in Czechoslovakia
AX 50
EL 51
SECRET
247.10 crowns
1,600.59 fl
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50:0
b. There were from three to five types of electronic tubes of the
class of low voltage mercury rectifiers for higher currents. 50X1
They were Philips products imported mainly from 1945 to 1948
and were for industrial low-voltage rectifiers.
the number of units imported. None were produced in Czecho-
slovakia. One of the types was 1069K, an industrial anode,
and the second was a similar type to the 1069K but was equipped
with three anodes (it was for alternate 3-phase current).
This tube was for the Tesla Roznov plant for rectifiers pro-
duced there.
C. Two or three types of phototubes with cesium cathode were
imported from Philips between 1945 and 1948.
the number of units imported. These tubes were ror movie
projectors. One of them carried the designation 3533.
not know the designation of the remaining types.
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d. Picture tubes for electronic oscillograph and possibly (a few)
as samples for television de plopment.
About five types of these picture tubes were imported from
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Philips between 1945 and 1948. the number of
units.
Medium-Power Special Electronicge Mercury Rectifiers
About three types of the Philips 3DG class were imported between 50:00
1945 and 1948. They were used for industrial high voltage recti-
fiers. One of them was DCG 9/.20 which was used also by the 9'ENR1P
Roznov plant in generators for high frequency heating.
know the designation of the remaining types or the number of units
imported.
Transmitter Tubes
?8. a. TA 12/20, a Philips product, was imported until 1948, about four
units yearly. The tube was used by the Tesla Roznov plant for
high frequency generators. After 1948 the Imports of this tubSom
stopped because it_was_ren1ane_d by the CAT 9 type, a Tesla
Vrsovice product 2
b4 Some types of the Standard Electric .r.
tween 1945 and 1948
Prague-Vrsovice, Sa
in 1948 and the bui.A.,..Lue, usea Dy the Tesla Roznov,
National Enterprise, Elstroj Plant.) These tubes were used for
'old transmitters, also of Standard Electric production, in
operation in Czechoslovakia, mainly for the Prague I trans-
mitter (Liblice transmitter). 50X1
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Comment: The information given here, along with the informa-mxi
oslovak production of electronic tubes j
gives a complete picture of all the tubes of all kinds
used in Czechoslovakia.
2,
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3omment: The prices given are pre-currency reform prices;
the present price equals that price divided by five.
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