This circuit was obtained from a Radio Electronics in February 1965. The circuit uses two transistors from the time and can be created with modern equivalent transistors.
This circuit consists of a small inverter that can generate a few hundred volts of DC voltage...
The use of a detector bridge instead of a single diode, as is normally done in common galena...
The LM150, 250 and 350 series of 3 A are manufactured by several semiconductor industries that...