Electronics Help Care electronics circuit diagram
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.
transistor circuit diagram of 2sa1943 and 2sc5200
Build a Transformer or construct the transformer. Home Theater Circuit Diagram 5.1
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