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 for link or alarm was found in the Encyclopedia of Electronic Circuits Volume 5 of...
The load on this amplifier is 8-ohm. We found the circuit in a 1972 Motorola amplifier manual. The...
This circuit is from a 1977 Radio Shack documentation. In it we have the activation of an LED for...