Found in a 1980s Electronics Now, this circuit uses common components. Transistors are commonly used. The circuit can act as a shield.
We found this circuit in a 1967 RCA SCR manual. The circuit uses components from the era. The...
A simple bistable configuration can be obtained based on just one amplifier, as shown in the...
This series sensor circuit is from 1995 Popular Electronics. The circuit can use any SCR and the...