This Hughes HRW-100B MC 100W/S Capacitor Discharge Welding Power Supply has been tested to power on only, but no further. Cosmetically this unit has some minor marks and scratches. but is in overall good condition.

Buttons lubricated for better pressing as they were getting stuck.

The Hughes HRW-100B MC is a heavy-duty, industrial-grade 100 watt-second (100W/S) capacitor discharge welding power supply engineered by the Hughes Aircraft Company in the United States for high-precision resistance and spot welding applications. Operating on a standard 105–125VAC power input, this robust 70-pound benchtop unit utilizes reliable solid-state circuitry to deliver highly repeatable, rapid-fire energy pulses ideal for delicate electronic component assembly, fine-wire bonding, and battery tab manufacturing. Though long discontinued by the original manufacturer, its durable American construction ensures it remains a highly sought-after piece of legacy equipment in surplus industrial markets, electronics repair facilities, and specialized manufacturing labs requiring precise energy control.