This circuit makes use of a specific 80's component and was found in an American manual of the time. A matrix keyboard allows you to select one of several music programs.
The sensor used in this transistor is a common silicon transistor and the operational admits...
This sophisticated drum sound synthesizer was featured in the May 1980 issue of Radio Electronics...
This sound effect circuit was found in a 1987 publication. It is a circuit that drives a set of...