The Global Variable AC Power Sources are designed for modern electronic laboratories needing a clean, electronically and galvanically isolated variable line supply. The line supply series are available in single and dual output ranges. The Model 1504 has a single range output from 0-150VAC @ 4 Amps of continuous current and the Model 1505 has user selectable ranges from 0-130VAC @ 4 Amps and 0-260VAC @ 2 Amps of continuous current. All designs feature a super isolation transformer which is triple shielded from the input line for maximum protection against shock hazard. A convenient front panel plug accepts a probe for measuring leakage current up to 9.99mA. The 1506 has the same dual outputs as the 1505, but it is wired for 220-240VAX line input. All units are overload protected with a fuse and a separate output switch. Rack mounting is achieved by sliding away the side panels which expose channels in the instrument's chassis. The accuracy, superior quality and safety features of the 1504, 1505 & 1506 make them perfect for research & development laboratories, medical facilities, plant maintenance, manufacturing and educational institutions.