Testing the device
A project log for The Poor Man's Speaker
If you have ten minutes to spare, an old musical greeting card, a 9V battery, and a $5 amp module, you can listen to music on the cheap!
A project log for The Poor Man's Speaker
If you have ten minutes to spare, an old musical greeting card, a 9V battery, and a $5 amp module, you can listen to music on the cheap!
J.D. Curry
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