Figure 2 Varying the reference voltage instead of the R-C time-constant gives a tuning law that is close enough to being linear in pitch over a couple of octaves, especially after adding R2. Just as ...

It’s a small linear motor which [ligonapProduktion] built after seeing a very brief description of a commercially available version. The video after the break shows him testing the motor.

But a secondary purpose should be to push things as far as possible, while having fun experimenting! Given a pitch-linear tone source, it seemed silly not to try make some kind of musical thingy using ...

IKO has unveiled its LT170H2 direct drive linear motor stage for dynamic applications such as semiconductor fabrication, ...

To drive the coils, he used a pair of TB6612FNG stepper motor drivers, controlled by a Wemos D1 Mini. The housing was 3D printed mostly from PLA, but with a few bits done in PETG. This was for ...