Antique radios, Old Time Radios
PM4DX
| 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 3.8 Volts / If 0.1 Ampere / Direct / Specified current DC = (Series working) |
| Description |
Heater Voltage range 3.8 to 4V.
The PM4DX is also listed as suitable for battery sets as well as for series DC operation.
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature Tube manual 1934-35
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PM4DX: Manufacturer's Literature
Emilio Ciardiello
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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):14
Collection of
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