On Wed, Apr 01, 2026 at 11:06:29PM +0200, Ben Stuyts via Synth-diy wrote: > Looks like a SMD Diode to me. Have you tried measuring them as a diode? > > Ben If it's across one of the motors it might be a kind of bidirectional Zener, they do use things like that for surge suppression. -- Gordonjcp