Radios antiguas y Radios de Colección
V257
| Base |
Octal (Int.Octal, IO) K8A, USA 1935
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| Usada en |
Radio/TV-reception etc. |
| Filamento |
Vf 2 Volt / If 0.15 Ampere / Direct / Specified voltage AC/DC |
| Descripción |
All references point to this tube as equivalent to the "similar" tubes. No data has been found to confirm any other details.
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| Literatura |
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Page 36
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Just Qvigstad
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[rmxtube-en]
| Cumplimiento de datos |
Más información |
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