soft power on circuit

soft power on the circuit:

This is soft power on the circuit diagram for the amplifier. every amplifier needs this circuit for soft stater. this circuit switches on the amplifier in a soft mode. sometimes we can see some amplifier makes a noise when the amplifier is switched on. if we use this circuit then the amplifier can’t make a start sound. this circuit can help to switch on the amplifier in slow motion. input voltage is Ac 220. and output voltage also Ac 220. 

This is the diagram and component list

R1=47ohm/20watts. R2=1m/1watts. R3=220ohms/1watts. R4=10k. P1=330n/400volts. P2=330n/400volts. c1=2200uf/25volts. z1=12volts. D1+D2+D3+D4=1N4007. 

transistor circuit diagram of 2sa1943 and 2sc5200

Build a Transformer or construct the transformer. home theater circuit diagram 5.1

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transistor circuit diagram of 2sa1943 and 2sc5200

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

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