12BH7

The 12BH7  (P/N 154-0046-00) is a dual triode vacuum tube with a B9A (Noval) miniature 9-pin base and a center-tapped filament for use in either 6.3 V / 600 mA or 12.6 V / 300 mA heater circuits.

Used in

• 517A
• 561A, and 561S

Links

• 12BH7 @ radiomuseum.org

Photos

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  12BH7A Vacuum Tube