12B4: Difference between revisions

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The '''12B4''' is a triode with 5.5 W maximum plate dissipation,
The '''12B4''' is a triode with 5.5 W maximum plate dissipation,
1000 V peak plate voltage, and and 105 mA peak cathode current.
1000 V peak plate voltage, and and 105 mA peak cathode current.
It has a miniature 9-pin base.
It has a {{B9A base}}.


The 12B4 is used in the [[551]] and [[555]], and as a pass tube in the power supply of the [[513]], [[581]] and [[585]].
The 12B4 is used in the [[551]] and [[555]], and as a pass tube in the power supply of the [[513]], [[581]] and [[585]].

Revision as of 10:07, 2 July 2018

parallel 12B4s (center left) as pass elements in 585 power supply

The 12B4 is a triode with 5.5 W maximum plate dissipation, 1000 V peak plate voltage, and and 105 mA peak cathode current. It has a B9A (Noval) miniature 9-pin base.

The 12B4 is used in the 551 and 555, and as a pass tube in the power supply of the 513, 581 and 585.

Data