Circuit diagrams and schematics - Electronic projects

1.2V-20V 10A adjustable dc power supply by LM338 A friend of me side radio amateur office. He wants Variable Regulate Power Supply high current about 10A go up. I then advise this circuit , because build easy. Use IC LM338 and IC LM107 again normal IC LM338 have current about 5A then must use 2 [...]

If you want used easy variable regulator power supply voltage 0-30V at current 1.5A max. I am like this circuit, because it is small but very good. I uesd IC – LM317T it is quality products ic variable regulator,so i like make in other power circuit. I made use of a 24Vac 1A transformer,The output [...]

This Instructable will show you how to build an adjsutable breadboard power supply entirely from Radioshack parts. It can provide multiple voltages directly to the power rails on a prototyping breadboard. This could be useful for people on a low budget, who don’t like to order parts online, or who need a good weekend project. [...]