7788
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The 7788 (European: E810F) (Russian: 6Ж52П (similar)) (P/N 154-0420-00) is a long life, shock and vibration resistant pentode tube with a B9A (Noval) miniature 9-pin base.
It is used as the output tube in the vertical power amplifier of the 581A/585A.
7788 pair in RM585 VAmp output stage
Links
- Amperex 7788 Datasheet (PDF)
- 7788 / E810F @ radiomuseum.org