[Collins] humm

[Tony Sokol]

Martin,

    Are you talking about a physical hummmmmm vs something that others 
are hearing on your signal?  If so, changing the caps will not help, A 
physical hum or buzzing sound is usually do to the laminations in one or 
more of the various transformers and/or chokes vibrating especially 
under load.  In this case tightening the hardware on the offending 
transformer or choke MIGHT help the problem.  In most cases the only 
real fix is to have the transformer rebuilt.  You may also get away with 
taking it to a local motor rewinding shop and having it "redipped"  in 
lacquer.  Or.....you just put up with the annoying buzz until it gets 
bad enough to make you do one of the above mentioned procedures. 

  73
Tony - W9JXN



drleborgne at aol.com wrote:
> Dear Collins aficionados;
> ?My 32S-3 has a humm probably coming from pwr supply. I checked original filter caps and look OK.
> Should I replace them anyway???????????? Regards :Martin
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