Antique radios, Old Time Radios
UB91
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Country:
Europe
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| Identical to |
UB91
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| Base |
Miniatur-7-Pin-Base B7G, USA 1940
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| Filament |
Vf 19 Volts / If 0.1 Ampere / Indirect / Specified current AC/DC ~ = (Series working) |
| Information source |
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
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UB91: RTT 1974 (Franzis) 13. Auflage
Martin Renz
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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):1
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