This circuit is from a 1968 Electronic Design. The characteristics of the output transformer are not given and the transistors are of the time. The circuit provides a power of a few watts.
daptation of a common multimeter for the measurement of high voltages with high input resistance,...
This circuit was obtained from a Radio Electronics magazine from June 1969. The circuit uses a...
Found in a 1990s Popular Electronics, this circuit uses a small transformer matched to the...