This simple neon lamp oscillator produces a 140 Hz, 40 V peak-to-peak signal. The frequency is given by the capacitor that can have its value changed. Note the high supply voltage.
Found in American documentation from the 1990s, this simple circuit excites a LASER diode. The...
This circuit was found in an old American documentation. The integrated circuit used is uncommon...
This circuit was obtained from the February 1990 issue of Radio Electronics magazine. The circuit...