Transformer hum.

Rick Jansen sscprick at
Wed Oct 30 15:32:02 CET 1996

In message <327aafa7.139197589 at> you write:
> Just found a new? method of getting rid of transformer hum:
> I used a product designed for sealing leaking car/boat windows. It's a
> thin liquid copolymer that penetrates hair-cracks and then harden.
> =46ound it in a boat shop.

You can buy poly-urethane sprays that are intended for this 
purpose in electrotechnical applications. I wouldn't use just
any product, you never know what it does under high voltage
or temperature...

Rick Jansen
rick at
S&H's a module and s&h's looking good

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