Antique radios, Old Time Radios
VT-257
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Country:
United States of America (USA)
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| Identical to |
VT-257
= K-7
= 2J30
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| Filament |
Vf 6.3 Volts / If 1.5 Ampere / Half indirect |
| Description |
2860 to 2900 MHz, fixed frequency. 20KV at 30A peak (30mA average), 285KW pulse output. Forced air cooling.
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
Tube Lore (I)
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