Deftaudio SpinnerLFO is a simple DIY kit based around a fidget spinner and a double bass pickup.
youtu.be/bGh6PYzHedM
This module is fully passive and requires no external power. It can be used as an oscillator source, where the frequency is based on the rotational speed. To control other CV inputs, you need to amplify the signal coming from it, such as with a preamp built in Behringer 2600. Any other preamp, mixer and a guitar pedal will work too.
Assembling the kit is straight forward. You need very minimal soldering skills, just to solder the sockets and two wires together. No special tools required.
github.com/Deftaudio/Midi-boards/tree/master/Eurorack_SpinnerLFO
Shipping:
Item will be shipped by Air Mail on the Same or Next Business day of receiving full payment.
This is international shipping from US. Exact delivery time varies from your location and could be up to 3-5 weeks.