In article <49m19f$ce5@caesar.ultra.net>, tsmith@fibusa.co says...
>Can anyone suggest a good source for older F components? I'm looking >for FTn finders, prisms, screens and more importantly meter resisters >(or commonly referred to as wipers).

Sorry, can't help you with most of the above, but screens are easy.
F and F2 screens are interchangeable. F3 and F4 screens are also
interchangeable. AND, the glass-plastic optical parts are
interchangeable on ALL the screens (so you can have the latest
screen type in your 60's F - though if you use the TTL meter, you
will need to recalibrate [or reset the ASA] to allow for the greater
brightness of the newer screens).
Hope this helps.