The circuit in the figure uses two operational amplifiers: an LM101A and an LM102. Diodes admit equivalents and resistors do not have to be accurate. The power supply must be symmetrical.
The circuit that gave rise to this configuration is from 1978. In the original publication are...
This SCR circuit was found in an American 1980s documentation. The circuit is still current,...
This simple effect circuit for musical instruments and stereos was found in a 1987 publication. Powered by...