Antique radios, Old Time Radios
4PenM
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Country:
Great Britain (UK)
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| Identical to |
4PenM
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| Similar
Tubes |
Normally replaceable-slightly different:
PM24M
; PT4
; PT41
; PenA1
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| Base |
Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Foo)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 1.1 Ampere / Direct / Specified voltage AC/DC |
| Information source |
History of the British Radio Valve to 1940 p. 151
Wireless World (The), London (WW, 79) November 22, 1935
Taschenbuch zum Röhren-Codex 1948/49
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Just Qvigstad
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