120W Power Amplifier Circuit - Leach Amp

Here the 120W power amplifier claimed to be a very good sounding design.

The circuit is complex, so it will hard enough to build manually by yourself. The design of PCB layout is already presented, but it still hard enough to construct. I do not recommend that you create the circuit boards unless you have experience in doing it.

Electric Guitar Preamplifier Circuit based TL071

Right here is definitely the circuit of a electric guitar preamplifier circuit based TL071 that would accept any common guitar pickup. It's also versatile in that it has two signal outputs.

A common illustration of working with a pickup attached to a guitar headstock is shown in above image. The pickup unit contains a transducer on one end and also a jack on the other end. The jack can be plugged right into a guitar preamplifier circuit and then to a power amplifier system.

UM66 Music Generator Circuit

This is the UM66 music generator circuit, of course this circuit uses UM66 as the main component to generate the signal of music / melody. UM66 operates on a supply voltage of 3V. The required 3V supply is given through a zener regulator. The transistor Q1 and Q2 is a push pull amplifier to drive the loudspeaker, so the music signal from pin 1 IC UM66 can be heard loudly. A class A amplifier can be used before push pull amplifier to minimize the noise and improve the output sound quality. UM66 is a 3 pin IC package just looks like a BC547 transistor.