Marked: "DAYRAD Tube Checker / Mfd. by the Radio Products Co., Dayton, Ohio. / Licensed Under Weston Patent 1704566 Type B". Includes leather carrying strap. Tube tester designed for A.C. plug in ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Brass dual-contact bayonet base tube ...

YouTube will pay $24.5 million to President Trump to resolve a 2021 lawsuit that claimed he was the victim of censorship when the site suspended his account following the Jan. 6, 2021 attack on the ...

The best coffee machines are on standby to deliver barista-quality brews that rival your favourite cafe from the comfort of your kitchen. For those of us who indulge in a daily cup (or three) of joe, ...