sabtron SABTRRN 3 AMPS SINGLE PHASE VARIABLE TRANSFORMER OPEN TYPE 3 A Rotary Dimmer  (Multicolor)

Sabtron variable transformer wound on a toroidal core and each turn is connectable via carbon brush mounted in moving arm. Rotations of the brush arm by manually, deliver an output voltage from zero to above line voltage Variable transformer wound on a toroidal core and each turn is connectable via carbon brush mounted in moving arm