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Sola Constant Voltage Harmonic Neutralized Transformer - Buzzzzzz

  • Thread starter T o d d P a t t i s t
  • Start date
T

T o d d P a t t i s t

Jan 1, 1970
0
I've got a Sola Constant Voltage Harmonic Neutralized
Transformer that I use as an isolation transformer when
working on TVs. It's heavy enough that my grandfather put
wheels on it and a pair of handles to move it around. The
fact that granddad did it tells you something of its age.
It's always hummed, but the hum now seems more like a roar.

I know old transformers tend to delaminate, but is there
anything that can be done to tone it down? When I switch it
on, it tends to scare everyone in the room more than the
open high voltage in the set under repair.
 
B

Bob AZ

Jan 1, 1970
0
Yes they do this.

The cure is to remove the transformer part from the case and all, tape
the leads together to enclose them and take it to a transfromer shop
where they will encapulsate it with epoxy. Put it back together and it
will be quiet as a mouse. Be sure to label/mark the leads when
disassembling.
Bob AZ
 
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