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Yeah I tried one a couple of months ago and it whined a bit and also buzzed/hummed/rattled a bit. I sent it back.
Anybody else have experience with the 5U4 made by JJ making mechanical noise when warming up? I'm wondering if this is normal.
I ask because one I got a couple of months ago would do it and it failed after about an hour. This next batch I just got all do it too.
Yeah I tried one a couple of months ago and it whined a bit and also buzzed/hummed/rattled a bit. I sent it back.
Building a better world (one tube amp at a time)
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