Antique radios, Old Time Radios
CK501X
Country:
United States of America (USA)
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Identical to |
CK501X
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First Source
(s) |
1939 : The Portable Radio in American Life p.162
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Filament |
Vf 1.2 Volts / If 0.03 Ampere / Direct / Battery = |
Description |
First Subminiature tube in USA. Earing aid pentode, about March 1940. CK501, no suffix, was fitted with a 5 pin peanut base. Other source: Developed in 1939 it was immediately used in numerous Hearing Aids. Ruggedized varieties came into use for proximity fuses (AAA). In 1945 subminiature tubes found application in the first vest pocket superhet Belmont Boulevard 5P113.
Text in other
languages (may
differ)
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Information source |
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature
Tube Lore (I)
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CK501X: KoBi
Konrad Birkner † 12.08.2014
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
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Forum contributions about this tube
CK501X
Threads: 2 | Posts: 2
Hits: 1790 Replies: 0
CK501X (CK501X) Subminiature tube
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Konrad Birkner † 12.08.2014
13.Sep.07
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1
Developed in 1939 it was immediately used in numerous Hearing Aids.
Ruggedized varieties came into use for proximity fuses (AAA).
In 1945 subminiature tubes found application in the first vest pocket superhet Belmont Boulevard 5P113.
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Hits: 1880 Replies: 0
CK501X (CK501X) Subminiaturröhre
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Konrad Birkner † 12.08.2014
13.Sep.07
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1
1939 entwickelt und zunächst in vielen Hörhilfen eingesetzt, wurde sie weiter entwickelt und ab Ende 1942 für Näherungszünder (Flak) eingesetzt.
1945 erstmals Verwendung von Subminiaturröhren für ein Westentaschenradio, Belmont Boulevard 5P113, ein Superhet.
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CK501X
End of forum contributions about this tube
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