AF Bech Amp

Small and self contained.


I have been wanting to build one of these for a while. I already had two audio amps on the work bench, but I wanted something that was self contained, and did not have to have wires running all over. This little amp is based on the LM386, has a small speaker built into the box, and an RCA plug on the end. A probe type attachment can be added and it makes a great tool for troubleshooting audio sections in radios. The little speaker built in the box is not the best sounding, but it lets you hear the signal, which was the goal with this little amp. I also included a 3.5mm jack on the side just in case I wanted to use a better quality speaker.


Basic Amp

Schematic of my bench amp. Nothing secret here!