This high quality audio amplifier circuit uses a LM386 IC. The LM386
comes in 3 packages; LM386-1, LM386-2, LM386-3 with output power
levels of 300, 500 and 700 millwatts respectively. The 10K pot controls
the gain and the 220uF capacitor couples the output to the speaker. A
Very simple and high quality audio amplifier circuit for general
purpose work. The 8 Ohm speaker can be replaced with a set of 8 Ohm
earphones when used as some type of listening device, or spy amplifier.