One piece of universal prototyping board using high quality FR4 and many PTHs (plated through holes).
Universal Vacuum Tube PCB (fits 3 Octal or 3 Noval sockets): Suitable for pre-amp and power amp projects using Octal and Noval vacuum tubes..
Please look at the pictures below for the tube base combination.
PCB dimension: 160mm x 110mm. PCB thickness 2.0mm
Double-sided plated with gold-plating metal surface.