Its not hard to make a signal tracer from an old AM radio. You need 60 mm of red and black flexible twisted pair, a 0.22 uF, 100V capacitor, a small black alligator clip, a 50 mm length of shrink tubing that will fit over the following probe, and a thin 100 mm long piece
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It’s amazing how there are plans for the near future for dual fuel engines that can use diesel or hydrogen. These engines can be used for railroads or marine, or for generating electricity. The 1 MW engine is equivalent to about 1350 HP. Here is a quote from this article: >> At a press event,
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My take in a comment >> @mfhberg Said, “[Hydrogen Fuel Cell vehicles] will die…” Right now, it looks like Toyota’s Mirai, Hyundai and Honda all have a sizeable stake in the HFC market future. These are not backyard grease monkeys, these are car companies that have done a lot research and development. Toyota has had
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A year or so ago I bought a few 1W mono amplifiers from a Chinese eBay seller for cheap – see the attached photos. The only marking on the PC board is YX-1667 but I’m not sure if that’s the potentiometer or the PC board itself. . I found that if I pushed the 3.5mm
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I bought two of these motion sensing LED lights for my hallway. They have a rechargeable cell that is charged through a micro USB port. To see one inside watch big Clive’s YouTube video – the ebay link to buy them is in his description. The charge lasts for more than a week with frequent
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