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GDenton

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About GDenton

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  1. I picked up one of the GA-5 reissues some years ago, but it has a hum and I put it aside. With the "stay in", I decided to pull it out and see why I put it away. The hum is still there even without tubes. I turn it on and after about 10-15seconds the hum swells from silence and just stays. The volume pot only quiets it "slightly" and it seems mechanical as I feel it hit the stop at each end with some slight movement, there's a small click and either slightly lower hum or back to the same. It's a flat hum, no oscillation. Took out the JJ's and put in Mullards. No change. Put in Groo
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