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 circuit was found in a Popular Electronics from the 90s. The components used are all common...
This circuit is from a 60's documentation. The circuit uses components from the era and serves to...
One pulse in the output is produce at each 5 pulses applied to the input. The circuit uses CMOS...