Antique radios, Old Time Radios
OP70/1000
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Country:
Hungary
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| Identical to |
OP70/1000
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| Similar
Tubes |
Normally replaceable-slightly different:
75-1000
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| First Source
(s) |
22.Nov.1935 : Wireless World (The), London (WW, 79)
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| Base |
Jumbo 4-pin bayonet (1918)
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 10 Volts / If 1.5 Ampere / Direct / Specified voltage AC/DC |
Dimensions (WHD)
incl. pins / tip |
x 194 x 57 mm / x 7.64 x 2.24 inch |
| Information source |
Babani, International Radio Tube Encyclopaedia p. 208 & 209
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Section 359, p. 828
Taschenbuch zum Röhren-Codex 1948/49
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OP70/1000: Tabu Röhren-Codex, 1948
Anonymous 15 Collector
More ...
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Just Qvigstad
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OP70/1000: Tungsram, in Januar. 1936, I. Auflage.
Sándor Selyem-Tóth
More ...
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