Antique radios, Old Time Radios
12B4A
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Country:
United States of America (USA)
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Brand:
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| Tube type: |
Triode, vacuum Text |
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| Identical to |
12B4A
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| Similar
Tubes |
Normally replaceable-slightly different:
12B4
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| Base |
Noval, 9 pin miniature (USA pico-9) B9A
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 12.6 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC |
| Description |
Center tapped heater, may be connected for 6.3V at 600mA. 12B4A is similar to 12B4 except for the controlled heater warm-up, suitable for use in conjunction with other 600mA types.
Intended as TV vertical deflection amplifier, also used as series-pass regulator in power supply circuits.
550V max DC anode voltage, 30mA max DC cathode current, 105mA peak.
Text in other
languages (may
differ)
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| Tube prices |
3 Tube prices (visible for members
only)
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| Information source |
Essential Characteristics, GE 1973
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12B4A: MK-Röhrentabelle
Daniel Consales
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12B4A: RTT 1964 (Franzis) 10. Auflage
Martin Renz
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Just Qvigstad
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12B4A: RCA Tube Manual
Peter Hoddow
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):732
Collection of
Collection of a member from D |
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