Category: Projects
Though I built this guy back in 2012, I haven’t really taken the time yet to make a post about how it works. Finally, here’s part 1 in…
This was a short experiment in cone-beam CT reconstruction. I built a scanner from craigslist parts, which was capable of reconstructing a package of hot dogs with only…
This is a project I took from conception, to sketch, to working design in about 4 month’s time. It is the most powerful handheld x-ray source in existence….
Recently I’ve been restoring a Ludlum Model 12 rate meter. What is that you might ask? The best ratemeter on this side of Si Valley, that’s what! I…
Every once in a while I build something ridiculous, and this would be one of those whiles. Ladies and Gentlemen of the internet, I present to you what…
I moved California. More about that on another post. Since then, I’ve (well, we’ve) had wifi problems, specifically ones emergent of what I consider to be some terrible…
Hardware development is painfully slow. But it does consistently, albeit slowly carry on. (or at least I try to convince myself it does) Le’ Software: Motor Modeling What is a…
Now that finals are complete I once again have time to work on projects. Video glasses for James, rebuilding super-DRSSTC among others, but the most important one right…
I have a bad habit of missing voicemails. When they arrive I usually do not know about them, and for some reason verizon doesn’t warn me when my…
From the hours of 11 pm to 4am Saturday night I decided to make an educational video. Don’t ask me why. I wanted to do some signal processing…
The 2x2A is a vacuum rectifier that, before the advent of the silicon diode, was used to rectify the high voltage needed for fun things such as television…
The goal of this project was to build an inexpensive portable x-ray machine, since such a device didn’t seem to exist! Odd, since such a machine could prove…
You don’t need lots of money to make high voltage capacitors, in fact some pretty decent ones can be made with some cheap and readily available materials. This…
Ladies and gentlemen of the world, I present to you a marvelous device that will revitalize your health and bring wondrous wealth and prosperity to your families and…
After their invention by Benjamin Franklin, Franklin’s bells became a novelty in the late 1700s. One bell would be connected to a stake in the ground while the…
My last plasma speaker, which used only one mosfet, got a bit too hot to run without a bucket of ice water nearby. To cut down on that heat I…
I’ve always wanted to make one of these, but never got around to it until recently. However, after finding the most adorable tiny flyback in a 5 inch TV, I…
Way back in the 1960s, the newly invented laser was described as “a funny but useless experimental demonstration in physics”, and a “solution looking for a problem”. Today though, lasers are an integral…
During attempts to build a cat’s whisker detector from SiC, I noticed a faint glow. Probing further, I found that one of the largest crystals emitted quite a lot of…