This circuit was found in a 90s Radio Electronics. It is intended to amplify the sound channel of analog televisions of the time. The integrated circuit used is uncommon today.
This circuit is very useful for the experimenter who may have his power supply damaged in the...
This circuit was found in a 1980s American documentation. Operational amplifiers are from that...
This circuit of a Popular Electronics is intended to control a wiper. The circuit consists of a...