Hello Chuck,
You might want to check out Antique Electronic Supply at www.tubesandmore.com. They have a online catalog or you can send for one of their paper ones. I don't know what to tell you about the tuner wheel except that I have heard of people having one turned on a lathe out of good steel. You might keep a eye out on Ebay for a "parts radio" that has a good one.
Take care
Bud
: I'm in the market for some tuner cable. Where can a person buy replacement grade material for these radios. Also, I need a tuner drum for a couple radios. That pot metal is sure a weak point. I would hate to scrap out a radio because of a tuner pulley.