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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: What makes transformers buzz? Does line conditioning help? posted by mbnx01 on April 23, 2016 at 11:17:50:
I had some luck taming buzz/hum in the high-voltage trannies of my Acoustat OTL servo-charge amps by reducing line voltage. I changed output voltage from my power regenerator from 120v to 115v and the buzz problem I had got much better. Buzz/hum did not go completely away, but like I said, much better. Remaining buzz was even further tamed with application of pieces of 3M viscoelastic damping material to the transformer housings. The deformation of the transformer laminations, (buzzing), caused by the magnetostrictions are affected by voltage, and in my case 5 volts was enough to significantly influence the level of buzz. Should point out however, that these transformers (2 per amp) are not garden variety audio transformers. They output ~3,000 volts, so your experience with varying voltage could be very different than mine. Transformer buzz/hum can be a very vexing issue and sometimes you just have to learn to tolerate some level of it. Hopefully it's not so loud you hear it when music is playing. IMO, line conditioning of some kind almost always helps, but by itself I wouldn't say it's a panacea for all the ails of transformers.
Edits: 04/23/16
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- RE: What makes transformers buzz? Does line conditioning help? - Sondek 18:02:56 04/23/16 (0)
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