This converter that allows high voltages to be obtained from batteries was found in Radio Electronics magazine from June 1959. The circuit uses a special transformer providing 9 to 18W of output.
The output power of this wireless intercom for the 27 MHz (11 meters) range is in the order of ½ W,...
In the figure we have the way to implement an Exclusive OR or XOR gate with CMOS or TTL...
This useful circuit is used to test the insulation of cables, appliances, leaks in high voltage...