Antique radios, Old Time Radios
M64
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Country:
Netherlands
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| Identical to |
M64
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| Similar
Tubes |
Normally replaceable-slightly different:
C405
; P430
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Filament |
Vf 4 Volts / If 0.3 Ampere / Direct / Battery = |
| Description |
Va=200 at Ia=25mA and -Vg=27, Gm=3 with amp factor=5 and Rint=3000. Modulator application. (Radio-Expres 1930)
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
Radio-Expres, Netherlands
- - Manufacturers Literature
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M64: Tabu Röhren-Codex, 1948
Anonymous 15 Collector
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Just Qvigstad
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M64: own collection
Peter den Boer
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