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Author Archives: Al Williams

Dummy Plug Gets Smarter with Raspberry Pi

Posted on June 16, 2025 by Al Williams

[Doug Brown] had a problem. He uses a dummy HDMI plug to fool a computer into thinking it has a monitor for when you want to run the computer headless. …read more Continue reading Dummy Plug Gets Smarter with Raspberry Pi→

Posted in dummy plug, edid, hdmi, video hacks

Laptop Brick is Brought Back from the Brink

Posted on June 14, 2025 by Al Williams

We’ve all been there. [Kasyan TV] had a universal adapter for a used laptop, and though it worked for a long time, it finally failed. Can it be fixed? Of …read more Continue reading Laptop Brick is Brought Back from the Brink→

Posted in mosfet, power supply, repair hacks, switching power supply, teardown

Cassette Data Storage from the 1970s

Posted on June 13, 2025 by Al Williams

When home computers first appeared, disk drives were an expensive rarity. Consumers weren’t likely to be interested in punch cards or paper tape, but most people did have consumer-grade audio …read more Continue reading Cassette Data Storage from the 1970s→

Posted in audio tape, kansas city standard, kc standard, retrocomputing

Simple Open Source Photobioreactor

Posted on June 13, 2025 by Al Williams

[Bhuvanmakes] says that he has the simplest open source photobioreactor. Is it? Since it is the only photobioreactor we are aware of, we’ll assume that it is. According to the …read more Continue reading Simple Open Source Photobioreactor→

Posted in algae, bioreactor, photobioreactor, Science

Crowdsourcing SIGINT: Ham Radio at War

Posted on June 12, 2025 by Al Williams

I often ask people: What’s the most important thing you need to have a successful fishing trip? I get a lot of different answers about bait, equipment, and boats. Some …read more Continue reading Crowdsourcing SIGINT: Ham Radio at War→

Posted in Cryptography, ham radio, history, radio hacks, world war II, wwii

Open Source CAD in the Browser

Posted on June 12, 2025 by Al Williams

Some people love tools in their browsers. Others hate them. We certainly do like to see just how far people can push the browser and version 0.6 of CHILI3D, a …read more Continue reading Open Source CAD in the Browser→

Posted in 3d modeling, CAD, cnc hacks, software hacks, WebAssembly

Randomly Generating Atari Games

Posted on June 11, 2025 by Al Williams

They say that if you let a million monkeys type on a million typewriters, they will eventually write the works of Shakespeare. While not quite the same thing [bbenchoff] (why …read more Continue reading Randomly Generating Atari Games→

Posted in atari 2600, games, software hacks

What Marie Curie Left Behind

Posted on June 11, 2025 by Al Williams

It is a good bet that if most scientists and engineers were honest, they would most like to leave something behind that future generations would remember. While Marie Curie met …read more Continue reading What Marie Curie Left Behind→

Posted in Curie, polonium, radium, Science

Two Bits, Four Bits, a Twelve-bit Oscilloscope

Posted on June 10, 2025 by Al Williams

Until recently, hobby-grade digital oscilloscopes were mostly, at most, 8-bit sampling. However, newer devices offer 12-bit conversion. Does it matter? Depends. [Kiss Analog] shows where a 12-bit scope may outperform …read more Continue reading Two Bits, Four Bits, a Twelve-bit Oscilloscope→

Posted in digital Oscilloscope, oscilloscope, tool hacks

Repairing Vintage Sony Luggable Calculators

Posted on June 10, 2025 by Al Williams

You might wonder why you’d repair a calculator when you can pick up a new one for a buck. [Tech Tangents] though has some old Sony calculators that used Nixie …read more Continue reading Repairing Vintage Sony Luggable Calculators→

Posted in calculator, repair hacks, retrocomputing, sobax, teardown | Tagged Sony

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