Seymour Printed and Etched Circuits Mfrs 39 New Haven Rd Number Nine Design is a Connecticut-based engineering service, specializing in the design of Printed Circuit Boards. We also offer PCB Fabrication, Assembly, Component Procurement, Mechanical Design/Detailing and Schematic Capture as subcontracted services. Seymour CT Printed and Etched Circuits Mfrs Number Nine Design www.n9d.com engineering printed circuit boards PCB fabrication PCB assembly PCB Component procurement mechanical design schematic capture IPC Designers Council chapter member Sequential Routing Line Termination Line Length Control Impedance Calculati engineering printed circuit boards PCB fabrication PCB assembly PCB Component procurement mechanical design schematic capture IPC Designers Council chapter member Sequential Routing Line Termination Line Length Control Impedance Calculati Business Reviews Number Nine Design Testimonials