This interesting circuit of an Electronic Design stores the highest voltage of two applied to its inputs. The circuit is from 1964 and can be adapted to use modern components.
This simple SCR delay circuit for activating a relay was found in documentation from the 1980s. The...
We found this circuit in a 1964 Electronic Design. The triac and SCR can be replaced with modern...
This circuit is suggested by an English publication from 1980. It is an RF detector that uses a...