Antique radios, Old Time Radios
Hyper-Power-Bivolt
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Country:
Great Britain (UK)
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| Identical to |
Hyper-Power-Bivolt
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| Similar
Tubes |
Heater different:
Hyper-Power-Fourvolt
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Filament |
Vf 2 Volts / If 0.3 Ampere / Direct / Battery = |
| Information source |
- - Manufacturers Literature Advertisement December 1929
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Just Qvigstad
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Hyper-Power-Bivolt: Wireless World 4. Feb. 1931
Anonymous 15 Collector
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