Kenotron tube, made by Westinghouse Lamp Co. for RCA. A 4-pin base with ceramic insulator, tipped S-shaped envelope. Stamped on envelope: old RCA logo and WL Co Westinghouse logo. On base: "Kenotron / ...

According to Reuters, the Houthis announced they will begin targeting vessels owned by major U.S. oil companies. ALBAWABA- Yemen’s Houthi movement announced Tuesday that it is ending its ceasefire ...

A croaky voice and a sharp, 'razor blade' sore throat are emerging as telltale signs of the latest Covid variants now sweeping Britain and the US. The strains — XFG, dubbed Stratus, and NB.1.8.1, ...

Moment Rory McIlroy has American fan thrown out of Ryder Cup for homophobic slur Join the Miguel Delaney: Inside Football newsletter and get behind-the-scenes access and unrivalled insight Join the ...

This is not how the Detroit Tigers drew it up at the beginning of the season. After leading the American League Central for the better part of the past five months, the Tigers’ playoff hopes and the ...

LOS ANGELES (KABC) -- Temperatures are beginning to warm back up across Southern California. A ridge of high pressure is moving in, warming temperatures back up. Most areas will see a warm day on ...

Abstract: In this letter, a novel power synthesis scheme is proposed for high-power terahertz (THz) traveling-wave tube (TWT), which features a quadruple folded groove-guide (Q-FGG) slow wave ...

Putin defiant after Trump sanctions Russian oil companies over Ukraine Trump's move pushed global oil prices up 5%. Chinese state oil majors to suspend Russian oil purchases in the short term, trade ...

Abstract: This paper presents a rectifier with a power combiner for a millimeter-wave wireless power transmission system. The proposed circuit uses a diode fabricated in a 0.1 um GaAs process for ...

On his first day back in the White House, President Donald Trump signed an executive order declaring an emergency at the US southern border and directed his top officials to evaluate whether to invoke ...