Fresh hacks every day
This VU meter uses Nixie tubes as the display. There are a total of fourteen IN-13 bar graph tubes that map out the audio spectrum. The build uses purely hardware for the display; no microcontroller processing, or dedicated VU-meter chips were used.
Input begins with a dual Op-Amp along with a pair of potentiometers which allow the left and … Read the rest
Have a little class when you’re screening for radioactive particles. You can follow the example which [Moustachenator] has set with this gorgeous Geiger counter case.
The business end includes the same Geiger tube we see in all of these projects, but he took the time to solder together a tidy circuit board and housed it in an acrylic … Read the rest
This set of four Nixie tubes display the number of people following bildr on Twitter. That’s neat; it uses an Arduino and some open source driver boards. But what caught out eye is the enclosure. The image above shows only half, but when assembled it’s a nice little cube that keeps the insides safe. This was laser cut using the … Read the rest
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