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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: Yep - both channels posted by airtime on November 20, 2015 at 12:02:55:
I happen to still be using the tube set that came with the amp when I bought it. They're all nos consisting of 3 Amperex BB in V5, V4, and V3 with telefunkins in V2 and V1 (the phono section). Some time ago,just for fun I put some reissue Genelex GL'S in V3 and V4. I got HUM in the left channel only. I traced it to the V3 spot. But when I moved things around the HUM went away and I haven't been able to dupicate it again. Weird. Maybe I hadn't pushed the tube in all the way or maybe a dirty socket.I'll clean them anyway. Don.t know.So I just checked and The GL and BB's have the plate orientation the same ( in relation to the pins). This puts the plates at about a 45 degree angle to the face of my amp. It is kind of strange that I did get some hum. I'll start playing with it and see if I come up with something concrete. But you may have to have Mike take a look if you want to get to the bottom of it . Very strange indeed. PaulB
Edits: 11/20/15
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- RE: Yep - both channels - colebearanimals 15:02:52 11/20/15 (0)
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