This distorter for musical instruments was found in a 80’s Hands On Electronics. The transistor can be any general purpose and the components can be changed to modify the effects.
Found in Philips documentation from 1968 this circuit operates at frequencies up to 10 MHz with 76...
This circuit was found in a European technical documentation from 1991. It is a circuit that must...
This harmonic oscillator controlled by crystal was found in an American documentation of the 90's....