[Amps] winding plate inductors

[Partain, Chuck]

        quick question, where can I find info about the actual winding of a
plate inductor. 
I know copper, silver plated, all that good stuff to use but I haven't run
across (other than winding and measuring) 
any "magic formula" for winding different coil sizes.. 
  
when I figure out what I need for a specific inductance on a band, how do I
know what to wind? 

looked in orr's handbook and the ARRL handbook, not much in there, plus some
web surfing...nothing. 

help always appreciated. 

~ka1mwp