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.
This circuit is intended to increase the width of a pulse. The circuit is TTL and can be used as a...
This circuit was found in a 1966 EEE. What it does is it converts the logic levels of 0 V and +4 V...
This circuit open and close the relay in intervals adjusted by the potentiometers. The capacitors...