This power supply protection circuit using a relay was found in a 1967 documentation. The components are from the time, but current equivalents can be used depending on the power source current.
This circuit was obtained in a technical publication from the 1970s. It fires a diac and thus a...
We found this circuit in the 1994 Linear Applications Handbook from National Semiconductor. The...
This simple measuring bridge allows the capacitance m of some pF to microfarads to be measured...