how to make 12 voltage

how to make 12 voltage:

how to make 12 voltage? this is the diagram to make strong volt. sometimes we need fixed amperes. but 7812 can maximum of 1 ampere. that time we have to make this type of circuit diagram to make strong amperes. here use an NPN transistor. 2sc5200 transistor. and use one 7812 voltage regulator IC. 

all 0.22 ohms resistors are 5 watts. and all 1-ohm resistors are 1-watt. 

It needs a strong heatsink for the IC. 2sc5200 and 2sa1943 circuit 

12 voltage amplifier circuit diagram 

Build a Transformer or construct the transformer. Home Theater Circuit Diagram 5.1

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