Based on a unijunction transistor, this circuit was found in the January 1994 issue of Electronics Now magazine. The frequency range depends on C1, which can be changed.
This power supply makes use of a capacitance multiplier. C2 can be 100 uF which with the action of...
This circuit, which appears in other applications on this site, was taken from a 2000...
Mouser Electronics is already providing new MOSFETs EF SIHx28N60EF of Vishay series for voltages...