6BA8
The 6BA8 is a triode and a pentode in one tube, with one heater, and a B9A (Noval) miniature 9-pin base.
- Sylvania 6BA8 Datasheet (PDF)
- 6BA8 @ radiomuseum.org
The 6BA8 is a triode and a pentode in one tube, with one heater, and a B9A (Noval) miniature 9-pin base.