Technipower Type M5 M5G3 Ganged Variac Variable Auto Transformer $1,290.61 Technipower https://www.ebay.com/itm/384815841122?hash=item5998cfbf62:g:…
Ungenrad General Radio Variac W20 Autotransformer $1,520.55 https://www.ebay.com/itm/114944456033?hash=item1ac3393561:g:…
Variac 3010-5110 Variable Autotransformer,120Vac 50/60 Hz, 3.1 Ma $937.41 Variac https://www.ebay.com/itm/274336538265?hash=item3fdfbb5e99:g:…