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.
A rectangular signal can be generated with the figure setting. The values given in the circle...
This circuit was obtained in an Electronic Design from the 80's. It has the adjustment of the gain...
June 2017 - The new touch switches C & K KXT series can now be obtained from Mouser Electronics. These...