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437

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ID = 13565
       
Country:
United States of America (USA)
Brand:
Tube type:  Triode, vacuum 
Identical to 437 = C337 = 37

Base UY-Base, 5 Pins (USA, April 1927) (Codex=H)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC
Description

Alternate code for 37.

 
Information source Taschenbuch zum Röhren-Codex 1948/49   

s_223_g_8.gif 437: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20

More ...

Just Qvigstad
437.png
437: own collection
Peter den Boer

Usage in Models 1= 1929?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
 

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