This anti-bounce circuit was found in a 1967 US documentation. Modern transistors such as the 2N2222 can be used. The circuit acts as a shield.
This Linear Technology cold cathode fluorescent circuit operates on power from 4.5 V. The...
This circuit was obtained from an American documentation from 1976. The circuit has a dynamic...
This circuit was originally intended to operate with a solar source for experiments. Transistors are...