Antique radios, Old Time Radios
HK57
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Country:
United States of America (USA)
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| Identical to |
HK57
= 57-Gammatron
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 5 Volts / If 5 Ampere / Direct |
| Description |
VHF all glass beam pentode. Base is special septar dish with 1/8th inch plate pin. introduced 1947 but had a short commercial life..
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
Tube Lore (II) p. 101
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HK57: ARRL Handbook 1972
Anonymous 10 Collector
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