5U4 tubes are now available in the Ray Tubes SELECT Collection. Vacuum tube company expands line-up with new-production 5U4 rectifier tubes in its SELECT Collection Rectifiers like the 5U4 aren’t ...

Abstract: This study investigates the harmonic emissions, photometric performance, and techno-economic implications of retrofitting T8 fluorescent tubes with LED alternatives under various ballast ...

Two men and a six-year-old boy have died in hospital after a fire suspected to have been caused by a fluorescent tube engulfed their flat in Hong Kong’s Mong Kok district. Director of Fire Services ...

Over recent years, there’s been a growing movement by the EU and the UK government to accelerate the withdrawal of dangerous substances in electrical and electronic devices - such as conventional ...

OAKLAND, CA, UNITED STATES, July 9, 2025 /EINPresswire.com/ -- Ray Tubes is pleased to announce that its new-production vacuum tubes are now available through its ...

MAKATI CITY―The Wire and Tube Southeast Asia Technical Seminar made its much-anticipated stop in the Philippines last June 30, at Makati Diamond Residences. With the theme “Building ASEAN’s Industrial ...

SAN DIEGO (KGTV) — Cal Fire says first responders rescued three people out of a tube east of the Otay Mesa Point of Entry near the U.S.-Mexico border. According to a Cal Fire spokesperson, ...

India’s copper cathode imports declined 34 per cent year-on-year in 2024-25 (FY25), largely due to a three-month supply disruption triggered by a quality control order (QCO), even as imports of ...

As television sets evolve, so do the materials used to make them. The hottest TVs on the market now are flat-panel models. Consumer electronics retailers say plasma and liquid-crystal display (LCD) ...

Abstract: Fluorescent tubes have long been the mainstay of lighting for many premises, due to relatively high efficiency and long life. LED efficiencies are set to exceed those of fluorescent tubes, ...