This two-digit timer was found in the 1983 Special Projects issue of Radio Electronics magazine. The circuit uses components that can still be found today.
This SANYO circuit has a typical input resistance of 1ook9 and excites a load with a resistance of 5.1k...
This circuit was obtained in a 1989 English magazine. Despite using a fixed 5 V regulator, it can...
We found this speed control for miniature cars in an American publication from the 70s. With...