[fahadshihab], a young tinkerer, shared his circuit design for a simple remote control using 555 timers. Using a 555 calculator, he designed a clock circuit that would run at 11.99 Hz. Two transistors ...

This circuit is low cost and can be constructed easily. By using this circuit, we can control any house hold appliance with the help of remote. This circuit is low cost and can be constructed easily.

Any time you are working with burglar alarm, access control, sound, nurse call, or intercom systems, as well as computer networks, lighting dimmer controls, and low-voltage industrial controls, you ...

E-T-A Circuit Breakers has introduced the E-T-A 4930, a new remotely controlled, single pole circuit breaker (RCCB) approved to MIL-PRF-83383 for the protection of aircraft electrical systems and ...

The RCCB 4930 lays claim to being the only remote control circuit breaker that meets and exceeds the life-cycle requirements of MIL-PRF-83383. It is a single-pole, remote-controlled circuit breaker ...

Chris Welch is a former senior reviewer who worked at The Verge from 2011 until May 2025. His coverage areas included audio (Sonos, Apple, Bose, Sony, etc.), home theater, smartphones, photography, ...

Article 725 provides the requirements for Class 1 circuits in Part II. A Class 1 circuit is that portion of the wiring between the overcurrent protective device (OCPD) of a Class 1 power supply and ...

In a twist on nontraditional uses of ultrasound, neuroscientists have developed pulsed ultrasound techniques that can remotely stimulate brain circuit activity. The findings provide insights into how ...