The purpose of this heat detector is to find hot spots on a board or other locations. The sensor is an integrated circuit from the period. The circuit is from Radio Electronics from May 1985.
This sound effect circuit was obtained from an article in the April 1969 issue of Radio...
This circuit has the purpose of feeding LEDs through coaxial cables of 75 ohms, without...
This circuit was found in a 1987 edition of the United States' Hands On Electronics magazine. The...