The Bendix G-15, a vacuum tube computer originally released in 1956, is now booting, and running code from paper tape. [David, aka Usagi] received the G-15 about a year ago from The System Source ...

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 ...

[Nick Poole] does a lot of custom work with vacuum tubes — so much so that he builds his own vacuum tubes of various shapes, sizes, and functions right on his own workbench. While the theory of ...

Learn more We're continuously testing the best vacuum cleaners across various types, sizes, and price ranges, all in the quest to help you find the top vacuum for your cleaning needs. Our cleaning ...

After a brief review of the history of the K2-W vacuum-tube op amp, an LTspice model is used to create its schematic in preparation for SPICE simulation. The availability of hierarchical blocks ...

Many rely on Dyson vacuum deals to drop those lofty price tags into more manageable positions. These are premium dust suckers, and they command a high MSRP - but with regular savings and bundle ...

Why vacuum yourself if you can have a robot do it for you? We spent hours rigorously testing the most popular robot vacuum models to find you the best of the best. Originally hailing from Troy ...

Using rice, sand and pet hair we score each cordless vacuum on suction performance, ease of use, battery life, comfort/handling, standout features and value for the price. You'll find our picks ...

Here’s how it works. The best vacuum cleaner will suck up dirt and debris in no time and be powerful enough to make light work of tough tasks. Not only should they keep your floors spotless ...