This inverter with the 555 IC provides a high voltage output, but very low current. We found it in an 80's documentation. The transformer is according to the desired voltage.
This circuit was found in an American publication from the 1980s. The transistor can be the BD135...
This circuit was found in the September 1993 Electronics Now magazine. It is based on the 555 and...
This circuit was found in the November 1993 issue of Electronics Now magazine. The two-stage...