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5v & 12v regulated power supply Supply 15v regulator eleccircuit pcb variable voltage lm337 lm317 circuits dc Supply power dual 12v circuit diagram dc 15v using unregulated main
Dual supply circuit diagram Dual 15v power supply schematic with pcb, +15v -15v 1a Many simple 6v power supply circuit
5v 12v regulated pcbSupply power dc dual basic 6v circuit circuits simple output voltage electronic 12v & 5v dual power supply circuit.
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5V & 12V Regulated Power Supply - Electronics-Lab.com
Many Simple 6V power supply circuit - Elec circuit.com
Dual 15V Power Supply Schematic With PCB, +15V -15V 1A - ElecCircuit
12V & 5V Dual power supply Circuit - Gadgetronicx