This circuit is from Delco Radio found in a 1968’s documentation. The transistors are of the time and are not given information about the driver transformer. Note the high supply voltage.
June 2016 - It can be obtained from Mouser Electronics Power inductors for automotive use of...
This circuit is from an old American publication. The indicated transistor is oversized as the 15 V...
This circuit, which appears in other applications on this site, was taken from a 2000...