Category Archives: high voltage

Simple Acrylic Plates Make Kirlian Photography a Breeze

We know, we know – “Kirlian photography” is a term loaded with pseudoscientific baggage. Paranormal researchers have longed claimed that Kirlian photography can explore the mood or emotional state of a subject through the “aura”, an energy field said to surround and emanate from all living things. It’s straight-up nonsense, …read more

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Posted in acrylic, capacitive coupling, corona, corona discharge, dielectric, high voltage, kirlian, misc hacks, tesla coil | Leave a comment

Build Your Own Plasma Ball

The simple plasma ball – it graces science museums and classrooms all around the world. It shares a place with the Van de Graaf generator, with the convenient addition of spectacular plasma rays that grace its spherical surface. High voltage, aesthetically pleasing, mad science tropes – what would make a …read more

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Posted in 2019 Hackaday Prize, Hackaday Prize, high voltage, how-to, plasma, science | Leave a comment

Tiny Cube Hosts a Hearty Tube

Tiny PCBAs and glowy VFD tubes are like catnip to a Hackaday writer, so when we saw [hamster]’s TubeCube tube segment driver we had to dig in to learn more. We won’t bury the lede here; let’s enjoy a video of glowing tubes before we go further:

The TubeCube is …read more

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Posted in add-on, badge, boost converter, cons, hardware, high voltage, minibadge, nixie, nixie tube, switching power supply | Leave a comment

Make Your Own Plasma Cutter

Of all the tools that exist, there aren’t many more futuristic than the plasma cutter, if a modern Star Wars cosplay if your idea of futuristic. That being said, plasma cutters are a powerful tool capable of making neat cuts through practically any material, and there are certainly worst ways …read more

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Posted in hardware, high voltage, metal, plasma cutter, tool hacks | Leave a comment

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