Found in American documentation from the 1990s, this circuit can generate signals of up to a few tens of megahertz. The transistor must be suitable for high frequencies.
This circuit, from a 1973 publication, shows how to obtain a fast, low impedance output for a 741....
This circuit was found in a 1999 documentation, but the components it uses can still be easily...
This overtone oscillator can generate signals up to 150 MHz. The crystal determines the frequency and...