Berning ZH270 help- Thanks again Allan,The noise on left channel appears even without anythi...
- Thanks for the hint Tubegroover, actually Iàve already contacted Allan f...
- OK, just replaced existing unknown output tubes with the Allan Sylvania ...
- Thanks Allan,Just received your tubes and kit today, I'll install and se...
- Thanks for your kind and appreciated help. I've forgot to tell I tried t...
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