DPSU

WARNING:

In some countries it may be required that mains wiring be performed by a qualified electrician - Do not attempt the power supply unless suitably qualified. Faulty or unsuitable mains wiring may result in death or serious injury. All mains wiring must use mains rated cable, segregated from input and low voltage wiring as required by local regulations.

DPSU schematics (for center tapped transformer LM317/LM337 Based):

DPSU PCB (for center tapped transformer LM317/LM337 Based):