On 1/05/2018 10:15 PM, wrote:
OK - from 20,000 feet, and with over 45 years around electricity, some of it with a license, if I were to attempt to fix this beast, I would make sure it met *ALL* the proper life-safety requirements. If windings are shorting internally, then the insulation below them is compromised. Fish Paper comes to mind, then dielectric varnish.

If there are any doubts, the device goes off to the salvage yard forthwith. Perhaps I am OK with messing about with unsafe stuff, but I may not be the end-of-the-line.

As Kutztown is at the end of next week, there will be good Variacs a-plenty from an amp or two up to 20 amp monsters, most of them selling for less than their salvage value. These things are neither scarce nor expensive if one knows where to look.

I keep two Heathkit IP 5220 Iso-Variacs A small write-up with pictures is attached below (not mine).

http://www.byan-roper.org/steve/stev...-variable.html

Peter Wieck
Melrose Park, PA



Nice unit !!