Model bwd 242A dual high stability, all Silicon Solid State D.C. Power Supply provides both Constant Voltage and Constant Current operation over the full operating range. Front panel switching enables the supply to be used up to the following ratings. 1. INDEPENDENT 2 x 0 -36V at 0 - 2 Amp. 2. SERIES 0 - 72V at 0 - 2 Amp. 3. PARALLEL 0 - 36V at 0 - 4 Amp. Integrated Circuit control and reliable silicon semi-conductors coupled with the advanced circuit design provide very high stabilisation and regulation with low ripple. Using a single unit, switched to any of the three modes of operation, the output may be programmed by several sources to provide the following operation. 1 . Remote Load Sensing. 2. Constant Voltage Remote Resistance Programming. 3. Constant Voltage Remote Voltage Programming. 4. Constant Current Remote Resistance Programming. 5. Constant Current Remote Voltage Programming. With two or more units, not necessarily of the same model, (See Section 4 for list of compatible supplies) the following operational modes can be used. 6. Auto Series with two or more units. 7. Auto Tracking, +ve to +ve, -*ve to -ve, -ve to -ve, using two or more units. 8. Auto Parallel with two or more units. The MASTER SUPPLY of any of the above modes using multiple supplies may be programmed internally or by any of the modes 1 to 5.