We found this circuit in the 1992 special edition of the Electronics Experimenter Handbook. The components used are still current, many admitting equivalents.
This circuit was found in the July 1992 issue of Radio Electronics magazine. The circuit is based...
This circuit was found in Electronics Today International of the 80's. The circuit uses still...
This circuit is from the National Semiconductor FET Databook. The coil data is provided with the...