Audio Recorder Circuit using LM324, PIC16F84A, ULN2803A, 1N4148, 2N3904

Audio Recorder Circuit using LM324, PIC16F84A, ULN2803A, 1N4148, 2N3904
How to make Audio power Amplifier and Repairing
Audio Recorder Circuit using LM324, PIC16F84A, ULN2803A, 1N4148, 2N3904
Audio Recorder Circuit using LM324, PIC16F84A, ULN2803A, 1N4148, 2N3904