20A High Current Power Supply Circuit
The power supply circuit shown in the schematic is the high current power supply circuit. A 7812 positive 3-terminal regulator is used for the main 13.8V 10A regulator, and this is followed by as many power emitter followers as needed for the current you require. The transistors are not critical. I used 2N3771 devices (50V, 20A, 200W) simply because I had a whole bunch of them in my junk-box. These are pretty much ideal, but I suggest that you use whatever
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