Superior Electric - Powerstat Variable Autotransformer

Superior Electric Powerstat Variable Autotransformer

Vintage Powerstat Powerstat Variable Autotransformer Superior Electric Bristol

Superior Electric PBA10-N01-1 Powerstat Variable Transformer 1

Superior Powerstat Q117U Variable Auto Transformer 1.4 KVA 120V In 0-120V 12 Amp

Superior Powerstat Type 116U Variable Transformer

Superior Electric Company Type 10C Powerstat Variable Transformer

Vintage Superior Electric Powerstat Variable Transformer TYPE IHSOIUK -FOR PARTS