Patchbay is a small repair studio in Rotterdam dedicated to vintage synthesizers. We are three people who care about old instruments, their history, and the players who keep them alive. From classic analog polys to rare drum machines, we take the time to understand each machine before we touch it. Our work is practical and respectful: careful diagnosis, honest advice, and repairs that preserve the character of the instrument. We know these synths are more than circuits and knobs. They carry stories from studios, stages, and secondhand shops, and they deserve to be treated with patience. Whether a machine needs a simple clean, a full restoration, or help finding a hard-to-source part, we aim to make the process clear and personal from start to finish. Based in Rotterdam, we help musicians, collectors, and studios keep old synthesizers making sound for years to come. We do it with patience and respect.