This circuit was found in a 1968 RCA documentation. The circuit can be designed with operational equivalents. Input signals can be up to 6 V in amplitude and the limitation is 78 dB.
This circuit was found in the Linear Applications Handbook by National Semiconductor. It uses...
This temperature compensated circuit was found in a Popular Electronics from the 90s. Integrated...
This circuit can operate with 27 MHz transmitters, having been found in a Japanese publication from 1967....