Found in Maxim's documentation, this high frequency circuit uses period components. The graph showing your performance is given next to the diagram.
Using NTCs or LDRs as sensors, the frequency of this circuit depends on the temperature or the...
This circuit was found in a Popular Electronics from 1991. The transistor could be the BC548. The...
This circuit was found in a 1994 publication. It can receive signals from the 3 to 20 MHz band,...