Suggested by General Electric documentation from 1968, this circuit activates a relay after 60 seconds, keeping it closed. PUT is an uncommon component today.
We found this circuit in the 1982 SGS linear integrated circuit manual. The L149 is not common today...
This modern regenerative receiver was featured in the March 1994 issue of Electronics Now...
This circuit was found in an Electronics World of 1969. The components of the time. The...