Antique radios, Old Time Radios
GR20-1
Country:
Germany
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Identical to |
GR20-1
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Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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Filament |
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Information source |
Universal Vade-Mecum, Electron Valves and Semiconductor Devices group 493
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Just Qvigstad
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