Antique radios, Old Time Radios
BM31/5
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Country:
Germany
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| Identical to |
BM31/5
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| Base |
Duodecal (12-pin), B12A (not glass)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC |
| Description |
Form: Rundkolben, 31 cm Durchmesser, Länge 46 cm
Nutzbare Bildfläche: 25 x 19 cm
System: Straight gun, Triode, Magnetisch Fokussiert, Schirm Metallisiert
Anodenspannung: 12kV
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Dimensions (WHD)
incl. pins / tip |
310 x x 460 mm / 12.20 x x 18.11 inch |
| Weight |
5500 g / 194.01 oz |
| Information source |
Universal Vade-Mecum, Electron Valves and Semiconductor Devices group 514
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Just Qvigstad
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BM31/5: Röhrentaschenbuch, Beier, 1956
Anonymous 10 Collector
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
Collection of
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