Antique radios, Old Time Radios
B309
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Country:
Great Britain (UK)
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| Identical to |
B309
= 12AT7
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| Similar
Tubes |
Other class quality (otherwise equal):
QA2406
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| Base |
Noval, 9 pin miniature (USA pico-9) B9A
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| Filament |
Vf 12.6 Volts / If 0.15 Ampere / Indirect / Specified voltage AND current AC/DC |
| Description |
Using the centre-tapped heater, can also be operated at 6.3V 0.3A.
Text in other
languages (may
differ)
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| Information source |
Röhren-Taschen-Tabelle, (Franzis RTT)
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B309: RTT Schwandt
Günther Stabe † 19.8.20
More ...
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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):4
Collection of
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