12B4

From TekWiki
Revision as of 11:59, 10 July 2022 by Peter (talk | contribs)
Jump to navigation Jump to search
parallel 12B4s (center left) as pass elements in 585 power supply

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

Pictures

  • 12B4 Tube

    12B4 Tube

Retrieved from "https://w140.com/tekwiki/index.php?title=12B4&oldid=75473"