This simple circuit has good gain and can be implemented with any general-purpose transistor. The circuit is from Electronics Now, June 1997. The coil determines the frequency range.
This circuit was found in General Electric's 1965 documentation. It appears elsewhere on the site....
We found this circuit in a 1962 publication by General Electric. The circuit applies to common...
This multi-output oscillator uses CMOS integrated circuits that are uncommon today, but they can...