Edicron Valve Bases and Accessories – Edicron SK9CC22-G, B9A octal base with chassis mount from Edicron, made from high quality ceramic for long life and durability. Suitable for use with B9A and 8-pin international octal valves with solder lugs or PCB connections. Edicron SK9CC22-G B9A Ceramic Chassis Gold Plated