The object is a printed circuit board with a black panel attached along one edge with two metal brackets. The circuit board has through solder lugs, soldered to the traces on both sides of the board. It also has 31-pin edge connectors on both sides, which are connected in pairs via 31 of the solder lugs. The panel is mounted at a right angle to the board and has a series of 21 holes in it, arranged in a line parallel to the board. There are 21 neon light bulbs soldered to lugs on the board and aligned to show through the holes in the panel, one per hole.