This precision signal rectifier was obtained in an American technical documentation from 1975. The operational amplifiers can be 741 and the power must be supplied from a symmetrical source.
The circuit we present was found in an English magazine from 1973. The complementary pair of power...
This circuit that equipped many transistor radios from the 50's was found in an American...
The circuit shown can be used on an infrared audio link. This circuit is from a Popular...