It’s an electromagnet pendulum analog circuit. Whether you’re building it, or just studying the schematics, this is a fun way to brush up on the non-digital side of the craft. The pendulum is ...

In a telegraph a switch opens and closes an electric circuit. In Morse's original design, the receiving device used an electromagnet, powered by the electric current in the circuit, to raise and ...

If the conductor is part of an electric circuit, an induced current will flow. and is often referred to as the generator effect. The induced voltage produces an induced current if the conductor is ...

As long as there is light the circuit can keep pushing and the pendulum swings forever. If it happens to stop a jolt from the coil starts the pendulum swinging and the rest of the circuit takes ...

THE electromagnet designed for the use of oculists ... It must be placed horizontally, and its circuit must be made and broken by the operation of a pedal. 3. The working pole must have a form ...