Antique radios, Old Time Radios
M5004
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Country:
Netherlands
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| Identical to |
M5004
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Filament |
Direct / Battery = |
| Description |
Amplification factor=50, slope =2.8mA/V
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| Information source |
Radio-Expres, Netherlands 2-9-1932
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M5004
Peter den Boer † 2025
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Just Qvigstad
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