This circuit for controlling a model of an elevator via wire was found in the December 1997 issue of Electronics Now magazine. DC motors must be rated at the voltage of the transformers.
This circuit activates a piezoelectric buzzer with an oscillator at the end of the programmed...
In this 1970s receiver, the coil has a primary with 100 turns and a secondary with 20 turns, both...
Found in old American documentation, this circuit is intended for the control of heating elements. The...