Antique radios, Old Time Radios
EF74
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Country:
Great Britain (UK)
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| Identical to |
EF74
= CV476
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| Similar
Tubes |
Normally replaceable-slightly different:
CV472
Other class quality (otherwise equal):
CV4503
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| Filament |
Vf 6.3 Volts / If 0.2 Ampere |
| Information source |
Universal Vade-Mecum, Electron Valves and Semiconductor Devices group 163
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EF74: AH eigene Sammlung
Alexander Hofer
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EF74: Manufacturer's Literature
Emilio Ciardiello
More ...
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