Antique radios, Old Time Radios
M7
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Country:
Denmark
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| Identical to |
M7
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| Similar
Tubes |
Normally replaceable-slightly different:
U4F
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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 1 Ampere / Direct / Specified voltage AC/DC |
Dimensions (WHD)
incl. pins / tip |
52 x 139 x 35 mm / 2.05 x 5.47 x 1.38 inch |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
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M7: Tabu Röhren-Codex, 1948
Anonymous 15 Collector
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Just Qvigstad
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2
Collection of
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