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ID = 38380
Brand: Tungsram; Budapest (see also British T.)
Tube type:  Half-Wave Vacuum Rectifier 
Identical to V22/7000

Base Loctal-8, B8G (Sylvania, 1938) Top contact with a cap.
Filament Vf 6.3 Volts / If 0.68 Ampere / Half indirect
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v227000_sock.png V22/7000: Universal Vade-Mecum, 1960
Anonymous 15 Collector

Just Qvigstad
Usage in Models 1= 1959

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

Collection of



Forum contributions about this tube
Threads: 1 | Posts: 2
Hits: 822     Replies: 1
Wrong data on this page
Ottó Jancsek

I have one of this guys. According my measurements, the filament is not half indirect. Pin 3 and 7 are the filament, but all others are cathode, except the top cup. So the filament is indirect.


Zoltán Kalmár

I checked my two examples of V22/7000, the cathode has indirect heating, indeed, but i observed and measured, that the filament is connected to the 5. and 7. pin. Greetings: Zoltán

End of forum contributions about this tube

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