A good source for an inexpensive Isolated Variable AC Power Supply

[Electronic M]

Originally Posted by DavGoodlin

That old Stancor looks fantastic for almost any radio, for a TV you need about 300 watts and color TV 400 watts minimum.

I found this Halldorson 500 VA with tap switches. I still use an oversized powerstat that was liberated from a theatrical lighting dimmer, in line before it rather than risk a mechanical failure of the switches, which are buried inside. The meter is pretty worthless accuracy wise.
Attachment 201469

If you have a variac(with voltage step up at the top of it's range) in series you can use an isolation transformer in overload mode for short stints say under 10min. Before I had decent sized isolation I would set my 120V in variacs output close to 140V and drive my isolation transformer off of it for small monochrome TVs and it would be sufficient for quick diagnostic power ups... gotta watch the temp when doing that though. That transformer developed a primary to secondary short after a couple years in service.

[vortalexfan]

The one I got is a 350 Watt unit, (350 VA) with 3 different voltage tapped outlets, one for 105 VAC, one for 115 VAC and one for 125 VAC, the one you saw in the "link" was a different one because I already bought the unit that that link originally went to.

I have pictures of the unit I bought posted below because I just got it today in the mail.