Antique radios, Old Time Radios
VMP4
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Country:
Great Britain (UK)
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| Identical to |
VMP4
= 5-447
= E447
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| Similar
Tubes |
Other base:
VMP4_Met
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| First Source
(s) |
1933 : History of the British Radio Valve to 1940 p. 194
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| Base |
Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fco)
Top contact screw type.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC |
| Description |
In the Rohren Codex 1948 & 1950 the heater current is wrongly indicated as 1.1 A instead of 1 A.
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| Information source |
The Saga of Marconi Osram Valve P. 149 & 334
Babani, International Radio Tube Encyclopaedia p. 154 & 155
Taschenbuch zum Röhren-Codex 1948/49
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren
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VMP4: Telefunken Werkstattbuch
Wolfgang Bauer
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Just Qvigstad
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VMP4: Marconi Advertisement
Anonymous 15 Collector
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):31
Collection of
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