Oct 23 2014

My Brother’s Math Calendar


My brother, a longtime math enthusiast (I’ve even seen him calculate logarithms in his head) has created an interesting math calendar for 2015 and is selling it on Amazon.

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Oct 08 2014

MultiSIM BLUE Review


msb-whyI was excited when I saw that Mouser was coming out with an apparently unlimited PCB CAD program. I’m not excited anymore. Check out my review at my other site, PCBShopper.

Jul 05 2014

A UI Parable: The Smartphone Phaser

Phaser on a smartphoneLast night, I had a dream that I had the latest Starfleet-issue phaser – and it was integrated with my smartphone. The result was truly a nightmare.

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Apr 03 2014

Finding the Cheapest PCB Manufacturer


I’ve built a website, PCBShopper.com, that lets you quickly and easily compare prices from several different printed circuit board manufacturers.

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Nov 24 2013

Hacking a Heating Pad


My wife and I have a heating pad on our bed. In the winter, we turn it on an hour before we go to bed. When we get into bed, we leave it on until we warm up. But if we fall asleep before we turn it down, we’ll wake up a couple of hours later, overheated. Clearly, we need a technological solution.

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Nov 06 2013

Heathkit Hack #3: Improving the ET-3300 Breadboard

I use a Heathkit ET-3300 powered breadboard for my prototyping. But setting it up has always been a chore in itself. I need to run wires from the power supplies to the power buses, which is messy (though admittedly not nearly as messy as the rest of the circuit will be) and often add voltage regulators, since the Heathkit’s power supplies of +12V, -12V and +5V are more appropriate to the 1970s than the 2010s. So I made a power distribution board that addresses these problems.

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Oct 29 2013

Heathkit Hack #2: Hacking a Heathkit Clock

One of my most precious possessions is a Heathkit clock I assembled as a kid. But it has some shortcomings: it loses the time and alarm setting if the power is interrupted, and adjusting it for Daylight Saving Time is a pain. So I decided to retrofit it with a GPS receiver to get the correct time.

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Sep 01 2013

Vintage Mainframe Hard Disk Clock

Clock with HubMany people are turning old hard disks into clocks. They disassemble old disk drives and put a clock mechanism behind the mirrored disc platter. They’re using 3½” disks, so they end up with itty bitty little clocks. I wanted something big enough to hang on the wall and retro enough to satisfy my nostalgia for the computers of my youth.

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May 26 2013

Why Star Trek Into Darkness Sucked

IntoDarknessDislikeThe latest Star Trek movie wasn’t as monumentally stupid as the last one, but it was still pretty bad.

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Dec 15 2012

Cooking the Perfect Steak

A sous vide cooker allows you to cook a perfect steak every time. You can buy one in the stores, but I wanted to make my own.
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