The 4250A Programmable Power Supply is a programmable power source which incorporates features not available in typical programmable power supplies: speed, accuracy, low programming noise, true current limiting, isolated control logic, output proportional to an external reference voltage. This power source can be operated in series or parallel. The 4250A is programmable in straight binary. Current range is 1A with regulation of 0.001%. The low voltage range is 16.383 V with 90-day accuracy of 100V. The high voltage range is 65.53 V with a 90-day accuracy of 300V.