[Amps] Noisy Power Transformer

[Paul E. Cater]

Hi Jim,

I have had transformers in older equipment do the same thing to me.  
Some of them could vibrate the table. 

A quick and inexpensive thing to try and that I have had success with is 
to use a bit of super glue on the laminates.  With age they can get 
loose and sloppy.  I just take the glue and let it run into each side 
and give it time to dry.  Then turn the transformer over and do it again 
continuing this for each side.  Hopefully this is all that is going on 
and will fix the objectionably noise for you.

Regards,
Paul
WD8OSU





Jim Brown wrote:
> I've just acquired a vintage Titan 425. After fixing some problems, 
> I think I may have it running OK, except that the power transformer 
> is making a lot more noise on keydown than my two other Titan p/s. 
> Is this a symptom of a likely failure mode, or only a nuisance? How 
> loud is it?  Loud enough that it's unpleasant when I'm working CW 
> with headphones that have fairly good isolation, but bearable if I'm 
> working SSB (to the extent that SSB is bearable). :)
>
> 73,
>
> Jim K9YC
>
>
>
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