This configuration was found in an English magazine from 1965. It is valid for any junction FET. The input impedance is 5.5 M ohm higher than conventional stages.
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...