This circuit was found in a 1967 General Electric documentation. Tunnel diodes can oscillate at very high frequencies. These are not currently easy to obtain components.
We found this circuit in the June 1992 issue of Radio Electronics magazine. The sensor is a common...
ON Semiconductor AMIS−3910XGEVB Evaluation Board demonstrates the features and capabilities of the...
This circuit has its frequency controlled by a 1MHz crystal. The circuit can be powered by...