Antique radios, Old Time Radios
PM254X
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Country:
Great Britain (UK)
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| Identical to |
PM254X
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| Similar
Tubes |
Normally replaceable-slightly different:
D5
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| First Source
(s) |
1929 : History of the British Radio Valve to 1940 p. 165
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 0.15 Ampere / Direct / Battery = |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
Babani, International Radio Tube Encyclopaedia p. 130 & 131
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PM254X: Manufacturer's Literature
Emilio Ciardiello
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Just Qvigstad
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