DIY circuit board for amplifier

DIY circuit board for amplifier:

This is a DIY circuit board for amplifier. it’s a mono STK audio diagram. This diagram can produce 15 watts using 18-0-18 voltage. stk 022 is an AF power amplifier. for stereo, we have to use dual circuits. we can use 12-0-12 voltage to max voltage 25-0-25. 

the circuit diagram is 

This circuit doesn’t have speaker protection. here, we need a speaker protection circuit. here is the link to get the speaker protection circuit. Diagram is here

This is the Speaker protection circuit diagram. It can protect our Speaker from the burn. If the amplifier has any problems, this circuit can save our soundbox. Normally, when the transistor makes a short circuit, the voltage comes out from the speaker output line, and this circuit protects that voltage. This circuit should not allow direct voltage to be sent to the speaker. This circuit is essential for protecting the speaker.

 

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transistor circuit diagram of 2sa1943 and 2sc5200

Thanks a lot for being with us. If you want another post then please visit our website. TDA7294

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

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