https://www.printables.com/model/759734-oreck-vacuum-tube-extension#preview
Replacement tubes are only about $15 but why spend that when I can just print them!
https://www.printables.com/model/759734-oreck-vacuum-tube-extension#preview
Replacement tubes are only about $15 but why spend that when I can just print them!
That was my first thought as well. I was going to be incredibly impressed if OP managed to 3D print a vacuum tube.
That or get a laugh at a 3D printed dummy vacuum tube in a $1K audiophile amp.