5-volt amplifier board:
This is the 5-volt amplifier board. this circuit can run with 5 voltages. used 2 transistors only. one transistor is Bc548 and another one is A1015. Bc548 is an NPN transistor. Collector, Base, and Emitter. A1015 is a PNP transistor. Emitter, Collector, and Base. we can use 3.7 voltage to 12 voltage in this mini amplifier circuit.
Thanks a lot for being with us. If you want another post then please visit our website.
We have another post for you. like repairing amplifier,