Build a Wind Harp!

Step 4 Amplifier

To amplify the tiny signal you will need an IC amplifier. A LM386 works will for this project. I made a special pc board, but it can be built on perf board. Keep the amplifier near the coils and bring out your signals using shielded wire to your PC. With my solar powered version, I used the solar garden lights as a housing for the circuit. You can connect the amplifier with a minumum of wiring with 2 conductor shielded wire. The shield can be the common and power negative, while one lead can be power positive and one lead the signal out.