[Arran]

Fred,
Send me your bare chassis and I'll get it zinc plated for you!
Steve

Steve;
  Ordinarily that would work for a chassis restoration, but with several Philco models there are aluminum shield cans that are permanently attached to the chassis. Rather then use threaded studs and nuts, clips, or even rivets, they inserted the cans into corresponding sized holes and then rolled the bottom edge over so you can't take them out. The coils inside these are attached to a bracket which is screwed onto the chassis from the underside and those can be removed for repair or replacement. Maybe someone can figure out how to remove these cans without destroying them, but then you would also have to figure out how to replace them? Perhaps I or someone else can experiment on a junk chassis.
Regards
Arran