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 was found in a 1992 publication. Its purpose is to time the activation of a doorbell...
This basic amplifier using complementary transistor in the output sources about 0.5 W of good...
This amplifier, with germanium transistors, provides a power slightly less than 1 W at a load that...