General Radio Type 200 B Variac Adjustable Transformer 170va PRI: 115 SEC: 0~185

General Radio Company Type W5 Variac Auto-transformer 115v 6a-50-60 Cycles

General Radio Variac Adjustable Transformer 170va PRI: 115 SEC: 0~185 Type 200 B

GENUINE VARIAC 200-500 GENERAL RADIO CO.

Superior Electric Powerstat 116-1056 Variable Autotransformer 7.5 variac 0-145V

Powerstat 10B Variac Variable Transformer 0-130V 2.25A 120V Input w/ Knob

Hammond EJ2G General Purpose Transformer Type E 250VA Pri 120V Sec 24V USED