Filip Pietruszewski started Capital City Transistor and Valve in Montreal out of his apartment, building and modifying pedals, guitars, and synthesizers for local musicians. Since then he's opened up shop in Fernwood, designing and manufacturing synthesizers, pedals, drone machines and lighting rigs. He uses advanced techniques including microsoldering and firmware development along with CAM-based tools like 3d printers, laser cutters, and CNC. He experiments with bringing analog and digital principles together, while putting an emphasis on human interaction with his creations. His regular customers include Trent Reznor, Men Without Hats, Astrocolor, and Dark Sparkler.