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In Reply to: Can you identify this EL84 and help troubleshoot noise? posted by bgunn on July 4, 2021 at 14:01:40:
Kind of a 7189. Good tubes, getting scarce and expensive. Best thing is, one at a time, move the tubes from one channel to the other and follow the noise to see which tube(s) it is. Good luck. The 87 is the year of production. The Sovtek EL84M is a somewhat related ruggedized EL84 type in current production.
Edits: 07/04/21 07/04/21 07/04/21
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Follow Ups
- Russian 6p14p-ev. - viridian 15:58:30 07/04/21 (1)
- Tough well made tube - Mossback 15:00:42 07/23/21 (0)