VIDIFFEKTOR Original circuit design: James Schidlowsky&friend https://www.jamesschidlowsky.ca/electronics.html#vidiffektor PCB design: Videonic@/Laboratorio de Juguete 3D case design: Eric Sauerhering https://www.thingiverse.com/thing:3045475 video: https://www.youtube.com/watch?v=uVLqSO9RIJs