LM7812 power supply schematic A very simple PS circuit with the basic 3 Amper version of LM7812 IC. LM317 variable power supply circuit 2N3055 adjustable power supply schematic This power supply ...

1. This simple op-amp circuit provides up to 60 degrees of adjustable phase-shift needed to create the split-phase inputs to the A/V receiver. Only one general-purpose op amp (here, one half of an ...