Originally suitable for photography applications, this circuit from a Popular Electronics from the 90s can also be used to time plate baths. The components are common, and the sensor is remote.
This circuit was originally published in a 1966 book from Spain. The circuit uses a...
This configuration appears at several points in this section, obtained from different sources....
This circuit draws one of the three possible guesses of a sports lottery logo: column 1, 2 or the...