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.
Found in 1969 RCA documentation, this dimmer uses a dual time constant setting to achieve better...
Found in a 1968 Mullard manual, this circuit can function as an infrared audio link. The...
This circuit trips when the input voltage exceeds 30 V. Its base is a DIAC and it can be used to...