Found in a 1960 Mullard transistor manual, this circuit uses components from the time.
This configuration was found in an English magazine from 1965. It is valid for any junction FET. The...
This circuit for a frequency of 1 kHz uses a symmetrical source. Other operational circuits can be...
The transistors in this circuit from a 1994 technical publication may be BC548 and the 12 V supply...