Manufacturer Part Number
GenRad Variac 0-140 Volts Autotransformer
Variac W20MT3 Autotransformer - General Radio USA
0 - 140 Volt Transformer
Input: Single Phase
50/60 Hz, 1 Ph.
This variac autotransformer came to us from a retiring electrical engineer who used this in his calibration and product development electronics lab.