Based in Copenhagen, Denmark, FreqPort’s flagship product is the FreqTube FT1. FreqTube is the answer to the question: how ...

Multilayer graphene-gated carbon nanotube (CNT) emitters are introduced to novel vacuum-sealed x-ray tubes. We characterized field emission performances and electron-beam (Ebeam) converging of the ...

Manufacturers are focusing on developing high-efficiency solid-state RF power systems replacing traditional vacuum tube-based devices to improve reliability, power density, and operational ...

Ray Tubes vacuum tubes are designed and manufactured specifically for audio applications. New-production vacuum tubes aim to revitalize audiophile tube market with industry-challenging quality control ...

We have the answer for Vacuum tube filler crossword clue that will help you solve the crossword puzzle you're working on!

The vacuum tube high-speed flying train (high-speed flying train) is a novel rail transportation technology. The maglev train can run with low mechanical friction, low air resistance and low noise ...