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Hackaday Podcast 144: Jigs Jigs Jigs, Fabergé Mic, Paranomal Electronics, and a 60-Tube Nixie Clock



Hackaday editors Elliot Williams and Mike Szczys get caught up on the week that was. Two builds are turning some heads this week; one uses 60 Nixie tube bar graphs to make a clock that looks like the sun’s rays, the other is a 4096 RGB LED Cube (that’s 12,288 total diodes for those counting at home) that leverages a ton of engineering to achieve perfection. Speaking of perfection, there’s a high-end microphone built on a budget but you’d never know from the look and the performance — no wonder the world is now sold out of the microphone elements used in the design. After perusing a CNC build, printer filament dryer, and cardboard pulp molds, we wrap the episode talking about electronic miniaturization, radionic analyzers, and Weird Al’s computer.

Take a look at the links below if you want to follow along, and as always, tell us what you think about this episode in the comments!

Direct download (55 MB)

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Episode 144 Show Notes:

What’s that Sound?

That sound was Teenage Mutant Ninja Nurtles: Turltes in Time, Sewer Surfin’ theme song
[OliveGarden] was randomly drawn from 10 correct responses and wins the shirt!

New This Week:

This Week in Security has news of a PS5 master key dump

32C3: Running Linux On The PS4
Nintendo Switch Gets Internal Trinket Hardmod
Playstation 3 Hacking – Linux Is Inevitable –

Interesting Hacks of the Week:

Cheap DIY Mic Sounds (And Looks) Damn Good
Pulp-Molding: A Use For Cardboard Confetti
Most FDM Printers Are Also Filament Dryers (with A Little Help)

This $0 Filament Drybox Needs Nearly No Parts

Not Your Average Nixie Tube Clock
DIY CNC Uses Lots Of 3D-Printed Parts
Big RGB LED Cube You Can Build Too

Quick Hacks:

Elliot’s Picks

Streamline Your SMD Assembly Process With 3D-Printed Jigs
Development Of Magnetic Locking Idea Shows Great Progress
Pokemon Time Capsule

Mike’s Picks:

Flip-Dot Oscilloscope Is Flippin’ Awesome
The Metabolizer Is Turning Trash Into Treasure Even Faster Now
Reballing And A Steady Hand Makes A Raspberry Pi 800

Can’t-Miss Articles:

Teardown: Analog Radionic Analyzer

Plus: Weird Al’s Monster Battlestation Is Now Just A Reasonably Fast PC

Smaller Is Sometimes Better: Why Electronic Components Are So Tiny

Source Here:

Tech News

Ham Radio Gets Brain Transplant



Old radios didn’t have much in the way of smarts. But as digital synthesis became more common, radios often had as much digital electronics in them as RF circuits. The problem is that digital electronics get better and better every year, so what looked like high-tech one year is quaint the next. [IMSAI Guy] had an Icom IC-245 and decided to replace the digital electronics inside with — among other things — an Arduino.

He spends a good bit of the first part of the video that you can see below explaining what the design needs to do. An Arduino Nano fits and he uses a few additional parts to get shift registers, a 0-1V digital to analog converter, and an interface to an OLED display.

Unless you have this exact radio, you probably won’t be able to directly apply this project. Still, it is great to look over someone’s shoulder while they design something like this, especially when they explain their reasoning as they go.

The PCB, of course, has to be exactly the same size as the board it replaces, including mounting holes and interface connectors. It looks like he got it right the first time which isn’t always easy. Does it work? We don’t know by the end of the first video. You’ll have to watch the next one (also below) where he actually populates the PCB and tests everything out.


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Researchers Use Nanoparticles to Kill Dangerous Bacteria That Hide Inside Human Cells



Researchers from the University of Southampton, working with colleagues at the Defence Science and Technology Laboratory (Dstl), have developed a new technology based on nanoparticles…

The post Researchers Use Nanoparticles To Kill Dangerous Bacteria That Hide Inside Human Cells appeared first on SciTechDaily.


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Tech News

The Unofficial Guide to (Avoiding) Electrocution



If you’re reading this sentence, there’s a pretty good chance that you interact with electricity more than just as an end-user. You’re a hacker. You aren’t afraid of a few volts, and your projects may involve both DC and AC voltage. Depending on what you’re working on, you might even be dealing with several thousand volts. And it’s you who Big Clive made the video below the break for.

“Familiarity breeds contempt” as the old saying goes, and the more familiar we are with electronics, the more cavalier we may tend to get. If we allow ourselves to get too lax, we may be found working on live circuits, skimping on safety for the sake of convenience, or jokingly saying “safety third!” far too often as we tear into a hazardous situation without scoping it out first.

Who better to bring us down to earth than Big Clive. In this video, he explains how electricity has the potential to impede the beating of our hearts, the action of our lungs, and even break bones. You’ll find a candid discussion about what electric shock does to a person, how to avoid it, and how to help if someone near you suffers electric shock.

Of course, if safety isn’t your thing, then maybe you’re ready to Shake Hands With Danger.

Original Article:

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