- August 27, 2013

When not busy with EDN, I try to get up to interesting adventures in the lab. Join me for some hardcore hardware, a hint of firmware, and any other rambles and rants that may turn up.


The Shadowbox Suffusion: LED project #2

  • 01.04.2018

A small display case needed some interior lighting. What to do? Read More...


How long should T&M gear be supported?

  • 01.02.2018

You or your company spends megabucks on some fancy piece of T&M kit. Upset are you that it’s abandoned after three years? Read More...


The Lampshade LEDening: LED project #1

  • 12.18.2017

Designing one’s own lighting proves to be a satisfying project. Read More...


Mentors wanted

  • 12.01.2017

Apply to be a STEM mentor to grade-school kids.

Majestic microcontroller mixup

  • 11.21.2017

The mother of all sub-$1 microcontroller comparisons.


Nixie clock: Tearup

  • 10.12.2017

Enjoy this photo essay of a Nixie clock build, and a look at the design. Read More...


Ternary DAC: Greater resolution, less bits

  • 10.02.2017

A base-3 DAC? Sacre bleu!


Sziklai transistors: What’s that?

  • 09.12.2017

There are many ways to connect two transistors, not all useful. Here’s one useful way you may never have encountered before. Read More...


Beware the TO-220

  • 09.06.2017

“When is a TO-220 not a TO-220?” is your Zen exercise today. Take care this package variation doesn’t bite you. Read More...


Chinese PCB shop spam is a thing

  • 08.18.2017

I try to fool the PCB spammers, but they get the last laugh. And… Rev. 2 of my powered speaker. Read More...


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