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.
Applying a high voltage to a mixed lamp can obtain a bluish light with a decorative effect. This...
We found this transistorized AM receiver of the regenerative type of excellent quality in a...
This circuit indicates the logical level of a CMOS circuit, extracting the power from the circuit...