The 1692 is a switching mode DC power supply designed to deliver high current output in a lightweight and compact package, making it ideal for powering DC-operated mobile radio equipment on the bench. It provides a variable voltage output from 3V to 15V at 40A continuous operation, with an additional fixed 13.8VDC output selectable via a slider switch. The switching mode design offers efficiency exceeding 80% under optimal conditions, along with advanced protection circuitry against overload and RFI immunity. Key specifications include ripple and noise below 10mVrms, line regulation of 80mV, and load regulation of 230mV across the full 0-100% load range. The unit features dual-color digital LED metering for accurate voltage and current indication, and is housed in a compact form factor measuring 8.67" x 4.33" x 11.82" and weighing only 7.7 lbs. This power supply is well-suited for laboratory bench applications, mobile radio equipment testing, and any scenario requiring reliable, efficient DC power delivery with high current capability.