Tube DIY Asylum

RE: Interstages "singing" (in the bad sense of it)....

24.22.235.48

Paul Joppa

In Reply to: RE: Interstages "singing" (in the bad sense of it).... posted by Michael Samra on October 22, 2014 at 15:44:53

The laminations will vibrate with the music for two reasons - electromagnetic forces generated by the winding currents, and magnetostriction which is an actual change in the dimension of the lamination. Careful manufacture, tight bolts, and soft mounting are the usual prescription.

Follow Ups:

RE: Interstages "singing" (in the bad sense of it).... - 6bq5 16:14:15 10/23/14 (1)
and then vacuum pot the transformer - now it will be really quiet.....
- RE: Interstages "singing" (in the bad sense of it).... - Paul Joppa 16:34:06 10/23/14 (0)
  Yeah, vacuum impregnating the windings is one part of "careful manufacture".

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