Antique radios, Old Time Radios
K450/50
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Country:
Austria
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| Identical to |
K450/50
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| First Source
(s) |
22.Nov.1935 : Wireless World (The), London (WW, 79)
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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 3 Ampere / Direct |
| Information source |
Babani, International Radio Tube Encyclopaedia p. 112 & 113
- - Manufacturers Literature 1935
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
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K450/50: Tabu Röhren-Codex, 1948
Anonymous 15 Collector
More ...
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Just Qvigstad
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K450/50: own collection
Peter den Boer
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