For sale is an untested vintage variable autotransformer (Variac-style) AC power supply, likely used for laboratory or industrial testing. The unit contains a large copper-wound toroidal autotransformer, controlled via a heavy multi-position front dial (0–8 scale) labeled "Speed". Front panel provides multiple output binding posts and a Simpson analog DC voltmeter used for monitoring.
Technical Features:
* Variable AC output via toroidal autotransformer
* Large front-mounted voltage/speed adjustment dial
* Simpson analog DC voltmeter (panel-mounted)
* Multiple front-panel binding post outputs
* Metal enclosure with internal transformer, wiring, and hardware
Condition:
* Exterior shows moderate wear: paint chips, scratches, and discoloration