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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: update 4 posted by vinnie2 on September 13, 2016 at 12:47:50:
DC on your AC mains? I had an issue with a tube amp that did that and it was due to DC on the mains. I had .6vdc on mains. I bought a Humdinger and it took care of that hum.Sometimes the DC can vary on the mains so can cause what your hearing.
also make sure your filament wire are twisted tightly together and running against the chassis. This can reduce or eliminate hum.
Another thing is make sure you are using shielded cables from power to interconnects. When using my table I kept getting hum that would be almost gone but come back again a little louder and it was due to my braided but unshielded cables. Put shielding on them, all gone.
Sorry for not being able to help sooner. I have been finishing up the build of my Latino VTA-120 which had a filament issue that I tracked down and fixed. Now that amp is dead quiet!
Edits: 09/13/16
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Follow Ups
- Vinnie2, have you check to see if you have... - Cougar 19:41:54 09/13/16 (1)
- RE: Vinnie2, have you check to see if you have... - vinnie2 02:55:48 09/14/16 (0)
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