Antique radios, Old Time Radios
D502
Country:
Netherlands
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Identical to |
D502
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Similar
Tubes |
Normally replaceable-slightly different:
A425
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Production stop |
Feb.1938 |
Successor Tubes
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1-425
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Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
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Filament |
Vf 4 Volts / If 0.09 Ampere / Direct / Battery = |
Information source |
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature 1931
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D502
Peter den Boer
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Just Qvigstad
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D502: own collection
Peter den Boer
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