This 1.5 A circuit has the output voltages adjusted by a selector switch. We found it in a Popular Electronics from the 90s. The integrated circuit must have a heat sink.
Circuits like this one, using the LM386 audio amplifier, are available from other sources in this...
This bass and treble control only attenuates the corresponding signals, requiring further...
Using a large inductance, this circuit was found in a Popular Electronics from the 90s. The...