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 came out in a publication called Electronics Handbook of 1993. The circuit shows how...
This is the conventional version of capacitance multiplier with operational amplifier that appears in...
) The integrated circuit used in this control is uncommon today and the maximum current obtained allows...