Category Archives: high voltage

High Voltage Protects Low Denominations

How do you keep people out of your change jar? If you didn’t say with a 3D printed iris mechanism and high-voltage spark gap, then clearly you aren’t [Vije Miller]. Which is probably for the best, as we’re not sure we actually want to live in a world where there …read more

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Posted in 3D printed enclosure, high voltage, iris, lifehacks, security hacks, spark gap | Leave a comment

Hold 3500 Volts Up To Your Eye

Old military equipment can sometimes be found in places like flea markets and eBay for pennies, often because people don’t always know what they have. While [tsbrownie] knew exactly what he was getting when he ordered this mystery device, we’re not sure we could say the same thing if we …read more

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Posted in classic hacks, high voltage, infrared, lens, night vision, PVC, tube | Leave a comment

I Love the Smell of ABS Plastic in the Morning

One lesson we can learn from the Vietnam War documentary Apocalypse Now is that only crazy people like terrible smells just for fun. Surely Lt. Col. Kilgore would appreciate the smell of 3D printers as well, but for those among us who are a little less insane, we might want …read more

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Posted in 3d printer, 3d Printer hacks, electrostatic discharge, electrostatic precipitator, filter, fumes, health, high voltage, ozone | Leave a comment

A Lot Of Volts For Not A Lot

There was a time when high voltage in electronic devices was commonplace, and projects driving some form of vacuum or ionisation tube simply had to make use of a mains transformer from a handy tube radio or similar. In 2019 we don’t often have the need for more than a …read more

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Posted in high voltage, inverter, mosfet, Tech Hacks, transformer | Leave a comment

Old Nixie Display Rides Again As 3D-Printer Filament Meter

We’re not sure about the name of this Nixie tube filament meter that [Scott M. Baker] built. He calls it a “filadometer”, perhaps a portmanteau of “filament” and “odometer”, in which case it makes sense. It may not flow trippingly from the tongue and we can’t come up with anything …read more

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Posted in 3d Printer hacks, 74141, filament meter, gauge, high voltage, nixie, Octoprint, prusa, Raspberry Pi Zero W, shift register | Leave a comment

Cold Plasma Torch Produces a Cleansing Flame that Never Consumes

It’s basically a lightsaber. Except smaller. And with an invisible blade. And cold to the touch. But other than that, this homebrew cold plasma torch (YouTube, embedded below) is just like the Jedi’s choice in elegant weaponry.

Perhaps we shouldn’t kid [Justin] given how hard he worked on this project …read more

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Posted in Argon, electron, electron temperature, flyback, high voltage, ion, ionization, misc hacks, plasma, RF | Leave a comment

Nixie Power Supply Shows Ins and Out of Offshore Manufacturing

[Tony] built a high-efficiency power supply for Nixie tube projects. But that’s not what this post is about, really.

As you read through [Tony]’s extremely detailed post on Hackaday.io, you’ll be reading through an object lesson in electronic design that covers the entire process, from the initial concept – a …read more

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Posted in flyback, high voltage, manufacturing, misc hacks, nixie, offshore, offshoring, power supply, prototype, shenzhen, Tindie | Leave a comment

Fun With A Hydrogen Thyratron

There’s something oddly menacing about some vacuum tubes. The glass, the glowing filaments, the strange metal grids and wires suspended within – all those lead to a mysterious sci-fi look and the feeling that strange things are happening in there.

Add in a little high voltage and a tube that …read more

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Posted in classic hacks, high current, high voltage, hydrogen, igbt, scr, switching, TGI1-50/5, thyratron | Leave a comment

X-Rays and High Voltage Hack Chat

Join us on Wednesday at noon Pacific time for the X-rays and high-voltage Hack Chat!

Fran Piernas likes to push the envelope a bit with projects that others might shy away from. A quick glance at his Hackday.io profile reveals a few of the exciting projects he’s been working on recently, including a DIY X-ray machine and the high-voltage driver needed to run it. Not only that, he’s recently taken his home-brew X-ray rig to the next level – a computed tomography (CT) scanner. His YouTube channel also has some exciting stuff using potentially lethal voltages and ionizing radiation.

Please …read more

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Posted in CAT scan, computed tomography, CT Scan, dental x-ray, generator, Hackaday Columns, high voltage, multiplier, X-Rays | Leave a comment

Ambitious Homebrew X-Ray Machine Reveals What Lies Within

We’re not quite sure what to say about this DIY X-ray machine. On the one hand, it’s a really impressive build, with incredible planning and a lot of attention to detail. On the other hand, it’s a device capable of emitting dangerous doses of ionizing radiation.

In the end, we’ll leave judgment on the pros and cons of [Fran Piernas]’ creation to others. But let’s just say it’s probably a good thing that a detailed build log for this project was not provided. Still, the build video below gives us the gist of what must have taken an awfully long …read more

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Posted in anode, cathode, cockroft-walton, dental x-ray, fluoroscopy, high voltage, ionizing radiation, Medical hacks, news, x-ray | Leave a comment