bertl
Gold Member
- Joined
- Feb 17, 2011
- Messages
- 2,415
Thanks bertl. That was educational!
TAH, there was a lot of experimentation, and trial and error in the early years from roughly 1964-1974—1st Version: integral thin steel spacer and spring; 2nd Version: hard fiber spacer; 3rd Version: integral spacer; 4th Version: brass spacer; 5th Version: steel spacer.