The circuit shown is from Motorola's 1990 Linear Databook. Shaded components are optional. The characteristics of the coils are given next to the diagram.
This 4-digit counter was found in a 1997 documentation. It uses CMOS integrated circuits and can...
This circuit was found in a Popular Electronics from the 90s. The frequency range generated...
This circuit limits the intensity of the output signal to a level given by the zener diodes. The...