The nose cone: it fits, but it doesn’t fit. The nose cone is a reasonably nice plastic cone, sized, at least roughly, for high-power tubes. They’re probably just about perfect for what appears to be the standard 2.56″ (65.0 mm) I.D. and 2.63″ (66.8 mm) O.D. tubes, with a 0.035″ (0.89 mm) wall thickness. I’m […]