RF or even switching transistors like the 2N2222 can be used in this circuit. The capacitors are ceramic and the frequency is determined by the crystal.
We found this circuit in the October 1994 issue of Electronics Now magazine. The circuit uses a...
This circuit produces a high voltage (above 5,000 V) to ionize the air around a needle that acts...
This triple power source suggestion for the bench was found in an American documentation from the...