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.
This circuit, used in radio communication, converts CW signals and tones that allow you to follow...
This circuit produces a square wave signal with the frequency determinated by R1 and C1. The upper limit...
A staircase signal is produced by this circuit using a TTL IC and an operational amplifier. The...