ESAB Linde C-130 Welding Power Supply is a conventional D.C. constant-current unit which was developed primarily for HELIARC welding. It is used with an air-cooled torch for single-pass welding of stainless, low alloy and carbon steels up to 1/8 in. thick. It can also be used for virtually any electric welding process requiring a comparatively simple unit of this type. The welding current is continuously variable from 25 to 150 amps. at 25 volts, adjustments being made by a vernier hand crank mounted high on the front panel.