12B4: Difference between revisions
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|Part_nos= | |Part_nos= | ||
|Description=power triode | |Description=power triode | ||
|Used_in=126;310;310A;502;502A;526;541;541A;535;535A;545;545A;546;547;549;551;555;513;581;581A;585;585A; | |Used_in=126;310;310A;317;502;502A;526;541;541A;535;535A;545;545A;546;547;549;551;555;513;581;581A;585;585A; | ||
|Designers= | |Designers= | ||
}} with a {{B9A base}}. It has 5.5 W maximum plate dissipation, 1000 V peak plate voltage, and and 105 mA peak cathode current. | }} with a {{B9A base}}. It has 5.5 W maximum plate dissipation, 1000 V peak plate voltage, and and 105 mA peak cathode current. | ||
Revision as of 11:54, 10 July 2022
The 12B4 is a power triode vacuum tube with a B9A (Noval) miniature 9-pin base. It has 5.5 W maximum plate dissipation, 1000 V peak plate voltage, and and 105 mA peak cathode current.
The 12B4 is used in the 126, 551, and 555, and as a pass tube in the power supply of the 513, 581 and 585.
Data
- 12B4A Datasheet
- 12B4 @ radiomuseum.org
Pictures
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12B4 Tube
