This circuit limits the intensity of an audio signal from a control voltage. The circuit is from a 90’s Radio Electronics. The coupler is a type that uses LDR.
Applying a 38 kHz signal at the input of this circuit (multivibrator) we can have stereo...
We found this circuit in an 80's Radio Shack publication. The circuit uses a company buzzer, but...
The circuit presented is from the 1994 Linear Applications Handbook from National Semiconductor. The circuit...