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CK501X

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ID = 9841
       
Country:
United States of America (USA)
Brand: Raytheon Mfg. Co.; Cambridge, MA
Tube type:  Vacuum Pentode   Audio Frequency 
Identical to CK501X
First Source (s)
1939 : The Portable Radio in American Life p.162
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)
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
Tube Lore (I)
ck501xsockel_1.gif CK501X: KoBi
Konrad Birkner † 12.08.2014
Usage in Models 1= 1942
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
 
20200308_222043.jpg

 
Forum contributions about this tube
CK501X
Threads: 2 | Posts: 2
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CK501X (CK501X) Subminiature tube
Konrad Birkner † 12.08.2014
13.Sep.07 		  1
CK501X (CK501X) Subminiature tube 

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.
 
Hits: 1857     Replies: 0
CK501X (CK501X) Subminiaturröhre
Konrad Birkner † 12.08.2014
13.Sep.07 		  1
CK501X (CK501X) Subminiaturröhre 

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.
 
CK501X
End of forum contributions about this tube
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