This ac to dc power supply can output 5A in continuous operation and 12A peak current. This kind of dc power supplies uses a PCB so you can use two case types for IC1, TO-220 or TO-3. The regulation of this 12 volt power supply is made with TR1 ( multi turn ). IC1 must be placed on proper heat sink.
LM338 Power Supply Circuit Diagram :
Source by: w3circuits
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