12B4: Difference between revisions
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|Part_nos= | |Part_nos= | ||
|Description=power triode | |Description=power triode | ||
|Used_in=126;551;555;513;581;585; | |Used_in=126;502;551;555;513;581;585; | ||
|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 15:49, 10 October 2021
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
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12B4 Tube
