Found in a 1965 Radio Shack documentation this oscillator can be used with modern general purpose transistors like the BC558. The transformer is the output type for transistor radios.
I found this simple circuit from an English magazine from 1984. The circuit can be easily...
Information about the high voltage transformer and the detecting circuits was not given in this...
The purpose of this circuit is to supply a direct reference voltage from the power grid. The...