12 Volt 3 Amp Power Supply Circuit Diagram. 3 transformerless power supply circuits. Figure 2 he soldered all parts on the nail head instead of the pcb.
First power supply circuit is built with bd139 one zener diode and a few passive components. Copper wires and nail 0 5inch ac line power. However if you are just going to pull out a few hundred milliamps lower than 500ma from it you won.
Simple 12 volt 30 amp psu circuit diagram.
Many high volt power supply circuit ideas. 3 transformerless power supply circuits. 12 volt battery monitor circuit diagram. First of all put the paper on a sheet of plywood and hammer a nail into the parts joint.
