Review on TekPower TP1863 Regulated Supply Protection by Michael Straughter

Received this power supply today and checked the voltage before I took it to my hobby -Transceiver plugged in, 45 watts at 2m. It showed 14.6, falling to 14.3 with button down at 45 watts on transceiver. So it works and the voltage regulation is sufficient. I left it running all day with the DVM cables connected to the output. I would like to set the voltage to 13.6-13.8, but this manufacturer does not include a circuit with the device. I emailed them to request the schematic. I'm assuming there's a voltage regulator IC inside with pass transistors to increase current handling. 4 stars out of 5 because the voltage is 6% higher and there is no circuit. I'll fix it if/when I get the circuit and voltage regulation to the seller's spec. It's heavy, as a linear power supply should be. I would definitely buy it again without hesitation. EDIT: I removed the lid from the case and saw a white decorative bowl with a knurled stem facing me. Based on the theory that it could control the output voltage, I spun it while observing the output voltage with a digital voltmeter. The voltage is simply set at 13.8. I also measured the current draw of my 2m transceiver. At high power, it sucks out 9.4 amperes, which the power supply easily copes with, the voltage at the terminals drops to 13.4 V.