Vacuum Tube Chess Piece Bases

A selection of bases for using vacuum tubes as chess pieces, or to just mount them on something else. Here are 5 types of bases for commonly available vacuum tubes. The same concept would apply to any type of tube pin arrangement; so if you choose different tube types these would be easy to re-draw with new pinouts. The holes in these bases are a little larger than the pins to allow for slightly bent pins. The tubes should be glued into the bases. The STL file names give the width of the ba