Antique radios, Old Time Radios
VO4
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Country:
Hungary
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| Identical to |
VO4
|
| Similar
Tubes |
Normally replaceable-slightly different:
FC4
; O407
Other base:
AK2
|
| First Source
(s) |
22.Nov.1935 : Wireless World (The), London (WW, 79)
|
| Base |
British-7-Pin, old (M7A) (Codex=Neo)
Top contact with a cap.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 0.65 Ampere / Indirect |
| Description |
Grid from top cap.
|
| Information source |
History of the British Radio Valve to 1940 p. 152
- - Manufacturers Literature
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49
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| Tube Tester Data |
Avo CT160 |
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VO4: Telefunken Werkstattbuch
Wolfgang Bauer
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Just Qvigstad
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):5
Collection of
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