We found this circuit that converts a direct voltage into a proportional frequency signal. The circuit is from an Electronics Now from April 1993. The JFET can be of any type.
This circuit was obtained from a 1994 publication. Its purpose is to digitally switch 5 audio...
This circuit is the equivalent of the CB121, but is triggered with the negative transition of the...
This tuned circuit was found in a 1966 Electronic Circuit Handbook. The transistor can be any...