Found in a 90's EDN, this circuit can be used as a shield. The components depend on the MOSFETs and the load that must be controlled. The logic is TTL.
We found this circuit in an Australian publication from 1991. It is a kit of the time with input...
This time base circuit was found in the January 1988 issue of Radio Electronics magazine. The...
This circuit was found in the December 1983 issue of Radio Electronics magazine. The sensor is an...