This circuit was found in an American documentation from the 90's. The transistor is a general purpose one. The circuit oscillates well between 12 and 30 MHz with the indicated components.
This circuit was found in the July 1998 issue of Electronis Now magazine. It is a traditional...
The diagram, obtained in an old European documentation, shows the ways to trigger and to shut down...
We found this circuit in a Poptronics from 1998. The circuit can be extended to more competitors...