Antique radios, Old Time Radios
20P4
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Country:
Great Britain (UK)
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| Identical to |
20P4
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| Similar
Tubes |
Other characteristic (electr. data):
20P1
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| Base |
Octal (Int.Octal, IO) K8A, USA 1935
Top contact with a cap.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 38 Volts / If 0.2 Ampere / Indirect / Specified current AC/DC ~ = (Series working) |
| Description |
TV Line Scan or pulse operation. Pa <15W; Va <400 or 6000 peak.
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20P4: From my schematic collection.
Pier Antonio Aluffi
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Just Qvigstad
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20P4: Ediswan-Mazda Data Book 1956-57
Anonymous 15 Collector
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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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| Data Compliance |
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