Antique radios, Old Time Radios
PRM
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| Tube type: |
Triode, vacuum Power/Output |
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| Identical to |
PRM
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Filament |
Vf 3.5 Volts / If 0.12 Ampere / Direct / Battery = |
| Description |
Hersteller: PTR = Polskie Towarzystwo Radjotechniczne, Warschau.
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| Information source |
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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
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