Uranium glass oscillator
Description
Here is my version of uranium glass oscillator. This was inspired by amazing Instructable project https://www.instructables.com/id/U-M-R-O-Uranium-glass-marble-ring-oscillator/ I decided to make a 3D printable case and use it as a part of my Borg costume from Star Trek. You can vary the capacitor and resistor value to change the frequency. I used 1uF capacitor and 200k resistor to have reasonably slow rotation (use 100k and 0.1uF to increase frequency). The transistors I used are: 2N2222 and the LED's are 400nm UV 5mm LED. The uranium glass bit I bought online. Mine was part of a key ring and the bead was 19mm diameter. If yours is bigger or smaller you can scale the model to make a perfect fit. https://www.youtube.com/watch?v=lxsjUPFW2kM
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