Once mass-manufacturing made reliable transistors cheap enough for hobbyists, vacuum tubes became pretty passe, and it wasn’t long before the once mighty US tube industry was decimated ...

A vacuum tube is just that: a glass tube surrounding a vacuum (an area from which all gases have been removed). What makes it interesting is that when electrical contacts are put on the ends ...

The hypothetical tunnel between the U.S. and the UK has been branded as a "high-risk" project by one of the world's leading ...

Korg has announced a trio of very unusual turntables that you can take anywhere. The new Handytraxx range can run on AA ...

Lee De Forest invented the audion, a vacuum tube device that could take a weak electrical signal and amplify it into a larger one. The audion helped AT&T set up coast-to-coast phone service ...

To clean the head, bin, and wand he advises: “Dampen a cloth with warm water. Begin wiping down the cleaner head, bin and ...

Part 5 provides spec summary of the GP/R K2-W vacuum-tube op amp and discusses measurement constraints/conditions and LTspice modeled output. The K2-W vacuum-tube op ...