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Spend an Hour in the Virtual Radio Museum
You have an hour to kill, and you like old communication technology. If you happen to be in Windsor, Connecticut, you could nip over to the Vintage Radio and Communication Museum. If you aren’t in...
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Retrogadgets: The Ageia PhysX Card
Old computers meant for big jobs often had an external unit to crunch data in specific ways. A computer doing weather prediction, for example, might have an SIMD (single instruction multiple data)...
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Non Contact Scope Probe Costs Nearly Nothing
[IMSAI Guy] wants you to build a non-contact scope probe. The cost? Assuming you have a bit of wire and a regular scope probe, it won’t cost you anything. Why do you want such a thing? You can see what...
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Upgrading a Cheap LX-2BUPS UPS Board To Fix Fatal Flaws
Cheap uninterruptable power supply (UPS) boards that take Li-ion cells of some description seem to have cropped up everywhere the past years. Finding use in applications such as keeping single-board...
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Retrotechtacular: How Not to Use Hand Tools
Whatever you’re doing with your hand tools, by the US Army’s lights, you’re probably doing it wrong. That seems to be the “Green Machine’s” attitude on pliers and screwdrivers, at least, the main stars...
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Peering Inside the Tang FPGA
[Greg] has been working with the Tang Nano 9K FPGA board. He wanted to use the Gowin Analysis Oscilloscope (GAO) to build an internal monitor into the device for probing internal points. The problem is...
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Tokyo Atacama Observatory Opens As World’s Highest Altitude Infrared Telescope
Cerro Chajnantor, site of TAO Although we have a gaggle of space telescopes floating around these days, there is still a lot of value in ground-based telescopes. These generally operate in the visible...
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