See Electronics for Model Railways Book 1!
A universal P.C. board for mounting LEDs for the Shop Display Driver.
Use the Shop Display Driver K-SDD1 kit to bring these little boards alive.
A double sided PCB measuring 9cm x 5.5cm and is pre-cut into the seven
smaller boards.
Kit includes 50 Red 3mm LED's.
Board dimensions: 3.5in x 2.1in.