We found this circuit in the April 1993 Electronics Now magazine. Almost any general-purpose JFET can be used. Power is supplied by a battery (2 x 9V).
This crystal-controlled oscillator can generate signals up to a few dozen megahertz. We found it...
This circuit checks the oscillation capacity of a transistor. The circuit can be used with fixed...
This simple circuit was found in the Spanish magazine “Todo Electronica”, in an edition of 1996....