Guitar amplifier packed with features. It consists of a JFET based pre-amplifier, a Big Muff Pi a.k.a BMP based Tone control and an LM386 power amplifier. The dual JFET pre-amp provides tube-like ...

On the day mini-amps were invented, electric guitar players the world over ... wired to a simple aux jack and connect to an LM386 low-voltage amp circuit which [Olson] assembled and mounted ...