Deflector dish glow update
Above is the circuit I created to simulate the amber/blue deflector dish glow of a Federation starship. Although the timing isn’t perfect, I find …
Deflector dish glow
After puzzling out how to use a transistor to turn on multiple LEDs using the output from a 555 chip, I’m now …
Using transistor as switch
I’ve been asked how to flash multiple LEDs using a timing signal from a 555 timer chip. It’s a good question because it’s something I …
Blanket chest/TV lift
My latest project is predictably my most ambitious—a blanket chest for the foot of the bed that also holds a TV …
Neo for Iwata airbrush update
An update on my experience with the Neo for Iwata airbrush I bought almost two years ago and with which I have …
Variable power supply
As part of my 2014 resolution to learn enough about electronics to be dangerous, I’ve built a variable power supply to use …
How to put an edge on a card scraper
http://www.finewoodworking.com/tool-guide/video/how-to-sharpen-a-card-scraper.aspx I’ve never bought a card scraper because I always thought the process of honing it would be onerous, but this video …
Photon torpedo circuit on the breadboard
Amazingly, the circuit posted earlier for the photon torpedo circuit actually works, despite some difficulties in recreating it. Most of those difficulties …
The old photon torpedo circuit
I plan to rework this photon torpedo circuit but for the time being, I thought others would appreciate my previous circuit, which …
Guinness cheesecake
Guinness cheesecake is as good as it sounds, or at least as good as it sounds to me, because many people have …