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First Project: MIDI Guitar Amp Channel Relay Box - 74HC595 + ULN2803 + 8 Relays | Arduino, Guitar amp
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Amazon.com: QEBIDUM 6pcs Audio Power Amplifier Module, Amplifier Board, Mini LM386 200 Times Gain 10K Solo Mono AMP Circuit Mini Guitar AMPS 200 Times 5V-12V Input 10K Adjustable Resistance : Electronics
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