This circuit was found in the September 1999 issue of Electronics Now magazine. The circuit is based on common operational circuits and produces various effects for the sound of guitars.
This General Electric circuit is from the 80's. The PUTs used in this meter are not common...
This circuit provides a power of the order of 2 W, characterized by high performance. The output...
The sensor can be made using two bare wire or two screen with a piece of tisse between them. One...