| Powerstat Superior Electric variable auto transformer | $60.00 |
| Superior Electric Powerstat Variac 1256D-4PS 56 Amps | $999.95 |
| Powerstat / Variac by Western Electric / Superior | $35.00 |
| ESTATE* SUPERIOR ELECTRIC CO POWERSTAT TYPE 116 | $19.99 |
| Powerstat Superior Electric 120v 15amp Variac! | $0.99 |
| TOULCO | |
| Bearcat Industrial Surplus | |
| Dave's Surplus | |
| DF Sales Electronic Components | | |
power trowel