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Author Archives: Al Williams

Tech in Plain Sight: Pneumatic Tubes

Posted on November 17, 2025 by Al Williams

Today, if you can find a pneumatic tube system at all, it is likely at a bank drive-through. A conversation in the Hackaday bunker revealed something a bit surprising. Apparently, …read more Continue reading Tech in Plain Sight: Pneumatic Tubes→

Posted in Featured, history, Interest, Original Art, pneumatic, tubes

The King of Rocket Photography

Posted on November 16, 2025 by Al Williams

If you are a nerdy kid today, you have your choice of wondrous gadgets and time wasters. When we were nerdy kids, our options were somewhat limited: there was ham …read more Continue reading The King of Rocket Photography→

Posted in astrocam, Estes, model rocketry, Space

An AI By Any Other Name

Posted on November 16, 2025 by Al Williams

While there are many AI programs these days, they don’t all work in the same way. Most large language model “chatbots” generate text by taking input tokens and predicting the …read more Continue reading An AI By Any Other Name→

Posted in Artificial Intelligence, stable diffusion

If It Ain’t Broke… Add Something to It

Posted on November 15, 2025 by Al Williams

Given that we live in the proverbial glass house, we can’t throw stones at [ellis.codes] for modifying a perfectly fine Vornado fan. He’d picked that fan in the first place …read more Continue reading If It Ain’t Broke… Add Something to It→

Posted in esphome, fan, home hacks, IoT

Precision Current Sources by the Numbers

Posted on November 15, 2025 by Al Williams

It isn’t unusual to expect a precisely regulated voltage in an electronic project, but what about times when you need a precise current? Over on EDN, prolific [Stephen Woodward] explains …read more Continue reading Precision Current Sources by the Numbers→

Posted in current sink, current source, how-to, zener diode

Meet Me on My Rotary Phone

Posted on November 14, 2025 by Al Williams

We suspect kids today — and some adults — are confused about phone terminology. In today’s world, “hanging up” and “dialing,” for example, are abstract words without the physical reference …read more Continue reading Meet Me on My Rotary Phone→

Posted in phone, phone hacks, rotary phone, soundcard

Meet Me on My Rotary Phone

Posted on November 14, 2025 by Al Williams

We suspect kids today — and some adults — are confused about phone terminology. In today’s world, “hanging up” and “dialing,” for example, are abstract words without the physical reference …read more Continue reading Meet Me on My Rotary Phone→

Posted in phone, phone hacks, rotary phone, soundcard

WWII Secret Agents for Science

Posted on November 14, 2025 by Al Williams

We always enjoy [History Guy]’s musing on all things history, but we especially like it when his historical stories intersect with technology. A good example was his recent video about …read more Continue reading WWII Secret Agents for Science→

Posted in geospatial data, history, Science, world war II

Cheap Multimeter Gets Webified

Posted on November 13, 2025 by Al Williams

[Mellow Labs] wanted to grab a multimeter that could do Bluetooth. Those are cheap and plentiful, but the Bluetooth software was, unsurprisingly, somewhat lacking. A teardown shows a stock Bluetooth …read more Continue reading Cheap Multimeter Gets Webified→

Posted in ESP32, multimeter, wireless hacks

Morse Code for China

Posted on November 12, 2025 by Al Williams

It is well known that pictographic languages that use Hanzi, like Mandarin, are difficult to work with for computer input and output devices. After all, each character is a tiny …read more Continue reading Morse Code for China→

Posted in Chinese, hanzi, history, mandarin, morse code, pictograms, telegrams

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