This is vacuum tube/valve holder for octals like the 6SN7. Loctals like the 7N7 will also fit. There are two different versions - desktop and wall mount.
I also
...Plus included variants with larger spacing to accommodate wider octal tubes.
I uploaded several different variations of each version for different number of tubes. If you want a different arrangement than what I uploaded, then you can edit the FreeCAD file and export a new model. Or you can ask and I'll upload one for you.
