Antique radios, Old Time Radios
HP604
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Country:
France
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| Identical to |
HP604
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| Similar
Tubes |
Normally replaceable-slightly different:
B405
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| First Source
(s) |
1930 : Saga of the Vacuum Tube, Tyne p.410
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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 0.15 Ampere / Direct |
| Information source |
Röhren-Vademecum; P.H. Brans; Antwerpen p. 40
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Section 103, p. 138
Taschenbuch zum Röhren-Codex 1948/49
Babani, International Radio Tube Encyclopaedia
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HP604: Fin Stewart
Fin Stewart
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Just Qvigstad
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