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 small transmitter operates in the medium wave range. T1 is an output transformer for...
We found this circuit in the Radio Electronics magazine of May 1977. The circuit has the frequency...
The use of field effect transistors in this circuit improves its performance. This configuration is from a...