This circuit can work with almost any JFET. The circuit is from an Electronics Now from April 1993. It is powered by a 12 V battery, but can also be powered by 9 V.
Based on the BA1404 integrated circuit, this circuit was found in the July 1992 issue of Radio...
The circuit is from 1980s Linear Technology documentation. The components are of the time and...
We found this circuit in the August 1994 issue of Electronics Now magazine. The circuit is based on...