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.
We found this circuit in the June 1991 issue of Radio Electronics magazine. The integrated circuit is...
This sensitive 5-band circuit was found in a September 1995 issue of Electronics Now magazine. The...
This RF amplifier step has a dynamic range of 140 dB and can amplify signals from 0.5 to 40 MHz....