A handy 5 x 7 segment display PCB. all common pins connected for easy multiplexing 5 standard 7 segment led displays (any display that fits a standard 14 pin DIL socket)-sockets could also be used if displays need to be changed or displays can be hard soldered. board is double sided - high qualtity fibreglass - made for aviation cockpit displays. possibly made by Smiths instruments. dims: (max ) : 44 mm high x 52 mm wide ( 6 x 3mm dia. mounting holes)