Crossover for the speaker:

This is a Crossover for the speaker and the tweeter. this crossover save the speaker and tweeter from the high watts. without crossover the horn or tweeter can’t run for a while. here in this circuit we can see 2 speaker one is the bass speaker and middle speaker is for mid range. the Inductor size is 1 inch. and the copper gauge is 18. and needs 24 turns to make 1mH. 14 turns need to make 0.6mH. here have 2 pf capacitors. one is 10uf and 250 volts. another one is 0.47uf 250v. this capacitors are Non-polarized capacitors.

Power amplifier circuit using transistors:

This is a power amplifier circuit using transistors. It’s a stereo diagram board. Here, use 4 transistors: 2 for the left channel, and another 2 for the right channel. 100+100 watts of output power using 35-0-35 voltage and 5 amperes. We know that Voltage X amperes = watts. So, 35X5=175 watts we can get using 35-0-35 voltage.

Power amplifier circuit using transistor

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 for an amplifier

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

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