Pressing the stop button drops out the SI coil, stopping the motor. Indicator lamps — red for running, green for stopped — can also be used. This basic control circuit forms the basis for much more ...

This design is a basic temperature control for refrigerators that has an electromechanical circuit. It specifically uses MC9RS08KA4CWJR microcontroller which has an 8-bit RS08 central processing unit, ...

Remote Control and Signaling Circuits, Class 2 Using Class 2 circuits may eliminate shock or fire hazards, but only if you install them correctly.

Testing relays and their circuits in vehicles doesn’t always require a trip to the bench. With a few simple tools and knowledge, this video shows how to test relays directly in your car using a test ...

The basic control circuit was simple, but too simple for safety — a projectile stuck in the barrel could leave a coil energized indefinitely, leading to damage.

The basic control circuit was simple, but too simple for safety — a projectile stuck in the barrel could leave a coil energized indefinitely, leading to damage.