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In Reply to: Russian 6p14p-ev. posted by viridian on July 4, 2021 at 15:58:30:
It's a tough tube that sounds OK nothing special.
OTK is soviet Russia military grade better quality than the other Soviet era EL84 tubes in my experience.
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Follow Ups
- Tough well made tube - Mossback 15:00:42 07/23/21 (0)