This circuit is from 1985 documentation. The integrated circuit is not very common today, but modifications can be made leading to a project with current integrated circuits.
This circuit was found in the February 1983 issue of Radio Electronics magazine. It is a 4-digit...
This filter that can use any operational was found in a French documentation from 1982. The power...
This dimmer constrols the temperature of a wire used to print images in wood or other materials....