Yesterday I posted pictures of an electronic load that I built and some users asked for schematic, here's the schematics of that project. tidied up and with some extra info added, please
GPS-3303 Multi-Output Power Supplies - Price, Specs
DC POWER SUPPLY GPS-2303 manual and leads | eBay
Instek GPS-2303 |Test Equipment Depot
How to use a DC Power Supply (GPS-3303) - YouTube
SPECIFICATIONS
GW Instek GPS-x303 Series Multiple Output Linear D.C. Power Supply
GW Instek GPS-3303-S Bench PSU (adjustable voltage) 0 - 30 V DC 0 - 3 A 195 W No. of outputs 3 x | Conrad.com
E3630A | Power supply unit, DC, 3 channel, linear 6V / 2.5A, + 20V / 0.5A, -20V / 0.5A, | buy & inquire