This is the DIY hifi amplifier circuit diagram for a transistor. We can use any of the PNP and NPN transistors. Here, we are using the 2SC5200 and 2SA1943. This pair of transistors can make a maximum of 150 watts. This circuit operates with a 25-0-25 voltage to a 50-0-50 voltage. It’s a mono board for a stereo that needs 2 boards. Thanks, APEX, for making this board. 

Details about 2SA1943

2sa1943 Polarity is PNP. The maximum collector power dissipation is 150 Watts. The maximum collector-base Voltage is 250 volts. Max Collector-Emitter Voltage is 250V. The Max Emitter-Base Voltage is 5V. The Maximum Collector Current is 17 amperes.

Details about 2SC5200 

2sc5200 Polarity is NPN. The maximum collector power dissipation is 150 Watts. The maximum collector-base Voltage is 250 volts. Max Collector-Emitter Voltage is 250V. The Max Emitter-Base Voltage is 5V. The Maximum Collector Current is 17 amperes.

Amplifier circuit diagram using driver board:

This is an amplifier circuit diagram using a driver board. It’s a mono circuit using PNP and NPN transistors. It can make 600 watts of output using 60-0-60 voltage and 10 amperes. 60X10=600 watts. Here, we use 8 transistors. We can also use an extra transistor if we want. A maximum of 20 transistors can be used in this circuit. 

Amplifier circuit diagram using driver board

How to make an inverter for an amplifier

How to make an inverter for the amplifier:

Here in this article, we are going to make 12 voltage to 50-0-50 voltage Inverter circuit. Normally, we have to use AC voltage for a transistor amplifier. If we need a big sound, we can’t use the battery. Because using 12 volts only, we can’t get a big sound. For this cause, we need this circuit to run a transistor amplifier. in transistor circuit, run with 24-0-24 voltage to 80-0-80 voltage. In the battery, we can’t run this type of circuit. For this, we need to invert the 12 voltage to 24-0-24 or higher. Now we are going to know how to make an inverter for an amplifier. We can get the diagram from here. besides diagram, we can watch the video on how to make the inverter circuit. How to make an inverter for an amplifier? 

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Transistor circuit for an amplifier

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