Antique radios, Old Time Radios
B135
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Country:
Netherlands
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| Identical to |
B135
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Filament |
Vf 3.5 Volts / If 0.12 Ampere / Direct / Battery = |
| Description |
Amplification=8.7, slope=0.25 mA/V, internal resistance=7900.
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| Information source |
Radio-Expres, Netherlands 18-6-1926
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B135: own collection
Peter den Boer
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Just Qvigstad
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Collection of
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