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 can be used with transmitters in the 3 to 30 MHz frequency range also functioning as a...
This VCO with a common operational amplifier was found in an old American documentation. The...
This filter, which rejects frequencies around 1 kHz, was found in the August 1993 Electronics Now...