Antique radios, Old Time Radios
4H07
Country:
Germany
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Identical to |
4H07
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Similar
Tubes |
Heater different:
A415
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Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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Was used by |
Radio/TV-reception etc. |
Filament |
Vf 4 Volts / If 0.06 Ampere / Direct / Battery = |
Information source |
Taschenbuch zum Röhren-Codex 1948/49
Universal Vade-Mecum, Electron Valves and Semiconductor Devices 1950
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Just Qvigstad
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