The integrated circuit used in this configuration for noise reduction on FM radios is not common today. The circuit is from 80s documentation and the reduction rate obtained is in the 10dB order.
This circuit safely replaces common locks, since, instead of the key, the opening is made with the...
Based on operational amplifiers of the time, this circuit from the 1980s has high input impedance. The...
Sine signals are converted into square signals by this simple circuit. The maximum frequency is...