Antique radios, Old Time Radios
904V
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Country:
Great Britain (UK)
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|
| Identical to |
904V
|
| Similar
Tubes |
Normally replaceable-slightly different:
41MH
; 4DXAC
; A30B
; AC2HL
; MH41
|
| First Source
(s) |
1932 : History of the British Radio Valve to 1940 p. 149 & 178
22.Nov.1935 : Wireless World (The), London (WW, 79)
|
| Base |
Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=F)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC |
| Description |
"Non-microphonic detector". Filament current resuced to .65a in 1935.
|
| Information source |
Babani, International Radio Tube Encyclopaedia p. 36 & 37
- - Manufacturers Literature
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
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904V: Telefunken Werkstattbuch
Wolfgang Bauer
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Just Qvigstad
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904V: 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):25
Collection of
Collection of a member from D |
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