This oscillator can generate 2 to 10 MHz signals and was found in an American 1980s documentation. The circuit is stable and its supply voltage is 5 V.
The circuit shown is from an old European publication. In it we have the way to activate a relay...
We found this circuit in a European publication from the 1990s. Transistors are still common types...
This circuit was found in an American documentation and can be added to common amplifiers of any...