The Samlex desktop switching power supply gives regulated 13.8V DC at up to 10 amps from standard AC power.
Desktop rather than fixed-mount is the format, so it sits on a bench or a chart table rather than being installed. That suits testing equipment, running a radio at the dock or powering 12V gear ashore, where a permanently wired supply would be the wrong answer.
Thirteen point eight volts is the land-mobile-radio standard the design came from. Transceivers specify that figure rather than 12, and a supply set to nominal 12V costs transmit power on a radio expecting the higher number.
Switch-mode circuitry keeps it compact and efficient while minimizing ripple and radio-frequency interference. The highly filtered output is what allows a switching supply to feed a receiver at all, since an unsuppressed one would sit in the noise floor. Explore more DC-DC converters and power supplies.
- Desktop format, not a fixed installation
- For bench testing or running a radio at the dock
- 13.8V is the radio standard, not 12
- Filtering is what keeps it out of the noise floor
