Collaborate Disseminate
There’s still a mystique around vacuum tubes long after they were rendered obsolete by solid state devices, and many continue to experiment with them. They can be bought new, but …read more Continue reading A Tube Tester Laid Bare
When most people think of tube circuits, the first thing that comes to mind is often the use of high-voltage power supplies. It wasn’t a given for tube circuits, though, …read more Continue reading A Low Voltage Tube Makes For A Handy Preamplifier
You can easily get carried away when trying to test things. For example, if you want to know if your car is working, you could measure the timing of the …read more Continue reading Roll Your Own Simple Tube Tester
One of the more popular trends in the ham radio community right now is operating away from the shack. Parks on the Air (POTA) is an excellent way to take …read more Continue reading The Peak of Vacuum Tube Radio Design
Much like vinyl records, tube amplifiers are still prized for their perceived sound qualities, even though both technologies have been largely replaced otherwise. The major drawback to designing around vacuum …read more Continue reading Tube Amplifier Uses Low Voltage, Sips Battery
Unless you are an audiophile, you likely think of tubes as mostly relegated to people who work on old technology. However, photomultiplier tubes are still useful compared to more modern …read more Continue reading Single Photon Detection with Photomultipliers
Ever wanted a good, good look at the insides of a 1950s radio, along with fantastic commentary on the internals and the purpose of various components? Then don’t miss [Adam …read more Continue reading Everything You Wanted to See About Restoring a 1956 Radio
[Mr. Carlson] has an old-style 1940-era radio tube tester, the kind that used to inhabit grocery and drug stores. It is in amazing condition and he was kind enough to …read more Continue reading Vintage Tube Tester Teardown
The sound produced by any given electric guitar is shaped not just by the instrument itself but by the amplifiers chosen to make that sound audible. Plenty of musicians swear …read more Continue reading Reactive Load For Amplifiers Teaches Lessons About Inductors
Typically, if you want to convert solar energy into electrical energy, you use either photovoltaic (PV) cells, or you use the sunlight to create steam to turn a turbine. Both …read more Continue reading Hackaday Prize 2022: Glass Tube Solar Thermionic Converters