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In Reply to: RE: SS pre hums with Mk IIIs posted by airtime on November 22, 2014 at 17:01:32:
Take a wire an ground the chassis of the preamp to the tube amp. It is likely there is not enough of a ground. The input impedance of the tube amp may be to high for the preamp causing oscillation. This type of hum is either a ground loop or oscillation.
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Follow Ups
- RE: SS pre hums with Mk IIIs - Chip647 18:24:15 11/22/14 (1)
- Ok, good suggestion - Dingojazz 19:34:17 11/22/14 (0)