Still working on the SX-117 receiver. This is probably known by many old
radio restoration experts but I tried this idea with the knobs and it came
out quite well and I thought I would pass it along.
The knobs on the SX-117 and similar series radios, all have a white
reference line running the length of the knob from panel to the front of the
knob. On my SX-117 (probably used a lot), most of the white line has been
worn off. What I did was to take each knob individually, put it in a small
padded vise (to hold it steady) and using blue masking tape (blue leaves no
residue), I masked off the knob areas to only show this straight worn out
line. I then used a bottle of "White Out" to restore the line. White out
dries very quickly and after removing the tape, the knobs look perfect for
the most part and the white seems to stay put.
K2WH
Bill (Group Owner)