[Eliot Ness]

You might want to try some fine polishing compounds in an inconspicuous area. Meguiars Scratch-X is usually available in most automotive departments. It isn't very harsh and requires a lot of elbow grease. Basically it works on the on the premise of diminishing abrasives; as you work the polish the abrasives gradually become finer and finer leaving a nicely polished surface:

http://www.meguiarsonline.com/forums/sho...h-ScratchX

I should quantify that I haven't used Scratch-X on a Plaskon (or any plastic or Bakelite) radio so be careful. I think I'd still try the GoJo and cleaner wax first. There is a good chance that the Plaskon is discolored from age, heat, or sunlight and you just might have to accept it:

http://www.myantiqueradio.com/plastic.htm

I should also add that the Novus line is an accepted polish for plastics:

http://www.pilotgearonline.com/novus-pla...re=default

But many of us find alternative products, such as Brasso (old formula), metal polishes, and auto polishes, etc., to work as well. Good luck and keep us posted with pictures!