Found in American documentation from the 90's, this circuit oscillates up to 150 MHz. The transistor supports an equivalent and the diode is general-purpose.
This step of good gain was obtained in an American publication of the 1980s. The circuit can be...
This two-transistor circuit was found in the January 1994 issue of Electronics Now magazine....
We found this circuit in an Australian documentation from 1991. The circuit is suitable for SMD...