Antique radios, Old Time Radios
K77B
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Country:
Great Britain (UK)
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| Identical to |
K77B
= QP22B
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| Base |
British-7-Pin, old (M7A)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.3 Ampere / Direct / Battery = |
Dimensions (WHD)
incl. pins / tip |
38 x 110 x mm / 1.50 x 4.33 x inch |
| Weight |
49 g / 1.73 oz |
| Information source |
History of the British Radio Valve to 1940 p. 146
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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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