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Author Archives: Al Williams

The Nibbler was Quite a Scamp

Posted on August 16, 2025 by Al Williams

The late 1970s were an interesting time for microcomputers. The rousing success of things like the 8080, the Z80, the 6800, and the 6502 made everyone wanted a piece of …read more Continue reading The Nibbler was Quite a Scamp→

Posted in National Semiconductor, retrocomputing, SC/MP

Suggested Schematic Standards

Posted on August 16, 2025 by Al Williams

We often think that if a piece of software had the level of documentation you usually see for hardware, you wouldn’t think much of it. Sure, there are exceptions. Some …read more Continue reading Suggested Schematic Standards→

Posted in misc hacks, schematics

Teletext Around the World, Still

Posted on August 15, 2025 by Al Williams

When you mention Teletext or Videotex, you probably think of the 1970s British system, the well-known system in France, or the short-lived US attempt to launch the service. Before the …read more Continue reading Teletext Around the World, Still→

Posted in retrocomputing, teletext, videotex

Calibration, Good Old Calibration

Posted on August 15, 2025 by Al Williams

Do you calibrate your digital meters? Most of us don’t have the gear to do a proper calibration, but [Mike Wyatt] shares his simple way to calibrate his DMMs using …read more Continue reading Calibration, Good Old Calibration→

Posted in calibration, dmm, tool hacks

DIY Wind Turbine Gets a 3-Phase Rectifier

Posted on August 14, 2025 by Al Williams

[Electronoobs] is using some brushless motors to make a DIY wind turbine. His recent video isn’t about the turbine itself, but a crucial electronic part: the three-phase rectifier. The reason …read more Continue reading DIY Wind Turbine Gets a 3-Phase Rectifier→

Posted in 3-phase, green hacks, rectifier

For Americans Only: Estimating Celsius and Other Mental Metrics

Posted on August 14, 2025 by Al Williams

I know many computer languages, but I’ve struggled all my life to learn a second human language. One of my problems is that I can’t stop trying to translate in …read more Continue reading For Americans Only: Estimating Celsius and Other Mental Metrics→

Posted in Hackaday Columns, mental math, metric, rants

3D Printing a Self-cleaning Water Filter

Posted on August 14, 2025 by Al Williams

No one likes cleaning out water spouts. [NeedItMakeIt] wanted to collect rainwater and was interested in using a Coanda filter that those used on hydroelectric plants to separate out debris. …read more Continue reading 3D Printing a Self-cleaning Water Filter→

Posted in coanda effect, green hacks, water filter

Flyback Converter Revealed

Posted on August 14, 2025 by Al Williams

As [Sam Ben-Yaakov] points out in a recent video, you don’t often see flyback converters these days. That’s because there are smarter ways to get the same effect, which is …read more Continue reading Flyback Converter Revealed→

Posted in flyback, parts, spice

The World’s First Podcaster?

Posted on August 13, 2025 by Al Williams

When do you think the first podcast occurred? Did you guess in the 1890s? That’s not a typo. Telefonhírmondó was possibly the world’s first true “telephone newspaper.” People in Budapest …read more Continue reading The World’s First Podcaster?→

Posted in Budapest, Hackaday Columns, history, phone hacks, telephone

That’s no Moon, er, Selectric

Posted on August 13, 2025 by Al Williams

If you learned to type anytime in the mid-part of the 20th century, you probably either had or wanted an IBM Selectric. These were workhorses and changed typing by moving …read more Continue reading That’s no Moon, er, Selectric→

Posted in Juki, retrocomputing, Selectric, typewriter

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