For most of us, vacuum tubes haven’t appeared in any of our schematics or BOMs in — well, ever. Once mass-manufacturing made reliable transistors cheap enough for hobbyists, vacuum tubes ...

Definitely not in the meme category, though, is this overkill vacuum tube 555 timer. It comes to us via [David Lovett], aka [Usagi Electric], who has lately caught the “hollow state ...

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 ...

Vacuum tubes are electronic components used to amplify, switch, modify and/or create analog signals by controlling the movement of electrons in low-pressure spaces. These components are used in ...

The telephone company had problems with vacuum tubes, too, and hoped to find something else to use for switching telephone calls. The idea of somehow using semiconductors (solid materials such as ...

My husband dug deep into the rabbit hole of dust mites and what regular vacuums blow out and we will never have a regular vacuum in our home again. We even picked our son's preschool specifically ...

Image credit: Handbook of Modern Sensors Ionization gauge Vacuum gauges which use ions are similar to vacuum tubes. The relationship between the ion current and the filament is a nearly linear ...

October 2024 A small apartment with a few area rugs has very different vacuum needs than a 2,000-square-foot house with wall-to-wall carpeting. The right vacuum for you also depends on your ...

Some models offer retractable cords and incorporated tube-management systems. The greater the motor strength, the more powerful the suction of the vacuum. Power for an ash vacuum is rated in amps ...

Here’s how it works. A great robot vacuum can save you both time and effort. As a TechRadar Homes Editor specializing in floor-cleaning appliances, I spend plenty of time reading and writing ...

Then there are chapters on photo-electric devices and various special tubes, while the final chapter of sixty pages gives a résumé of high-vacuum practice, based on material supplied by C.

Learn more› by Sabine Heinlein Only a powerful plug-in upright or canister vacuum can truly deep-clean your carpets and floors. We recommend four. by Sabine Heinlein Robot vacuums never get ...