The 90 that I'm working on has a very sloppy dial drive mechanism; the shaft has a little slot worn in it, and the matching hole in its bracket is worn, too. I have some ideas from old posts on the ARF, but I thoght that I would ask here.
I fixed it; I found an old hollow tuning shaft (to use as a bushing) in my assorted junk (probably a shaft from one of those late 40s Zenith sets), which had a quarter-inch I.D. I slid it over the tuning shaft, and carefully centered the shaft over the original hole. I used a fine-point Sharpie marker to draw a circle around the new bushing, and reamed/filed the bracket to the diameter of the bushing. I then pressed it into place and soldered it, trimming the new bushing to about one-quarter inch or so. The dial was then reassembled, and the mechanism was oiled. It now works perfectly, and should be good for another 74 years.
Hey Tim, don't leave us in suspense....
Could you add some pictures please?
