[Usagi Electric] is breathtakingly close to having his Bendix G15 vacuum tube computer up and running. This week he is joined by a new friend, [Lloyd] who is restoring a G15 as well. [Lloyd] used ...

these collectors use one or more tanks or tubes inside an insulated glazed box. Evacuated-tube solar collector Uses parallel rows of glass tubes with inner metallic tubes attached to fins.

which absorbs solar energy and transfers it to the water. There are mainly two types of collectors: flat collectors and ...

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 ...

Naked Energy has obtained GBP 17 million ($22 million) in new equity. The UK-based photovoltaic-thermal (PVT) system supplier ...

In residential applications, solar water heaters use one of three solar collector types: flat plate, integral collector-storage, and evacuated tube. Flat-plate collectors may be either glazed or ...

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 ...

Leonardo David is a writer and energy consultant who has worked on projects funded by the Inter-American Development Bank. An electromechanical engineer, he has written about solar energy and the ...

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 ...

Perovskite Solar Cells: Vacuum Process May Offer a Short Track to Commercialization Mar. 14, 2024 — Which process is best suited for mass production of perovskite solar cells? While solvent ...

A good vacuum sealer staves off freezer burn and keeps food fresher longer. After we sealed meat, nuts, crackers, and fruit, and then tested the bag seals over the course of several months ...

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 ...