On old Dynacord amplifiers from the 1960s, the control knobs are often missing or damaged. This is a replacement designed to closely match the original knobs. If available, the original insert plate can be used; alternatively, an 18 mm upholstery nail (cut off the nail shank) or the printed version can be used.
I printed with support only on printbed.
The M3 thread should be cut by hand, and an M3 grub screw should be installed.