We found this circuit for vocal effects in the September 1990 issue of Radio Electronics magazine. The circuit works with signals from two inputs of a stereo system.
This circuit was found in an American documentation of the 90s. Optical resources with the LDR as a...
This circuit is used to test an inductor (coil) allowing the observation of its opration in an R-L...
This circuit is suggested by Motorola, using a 4N26 type coupler and an MC1733 type operative. However,...