This realistic circuit has longer timings for green and red lights, with shorter timings for yellow. The circuit is from an Electronics Now from May 1994.
This circuit was obtained from General Electric documentation from the 1980s. FET operations are from...
We found these circuits in a Popular Electronics from the 90s. The circuit has a simple low power...
In the figure we have the way to obtain an adjustable constant current source of 2 mA. The...