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IIe 80col/64k card question



Hi folks,

    In my IIe reconditioning project, I've come across two different
80col cards.. an earlier and larger card with about 10 chips and a
jumper; and a tiny later card of 4 chips.

    Are these two cards functionally identical, and if so, why does
the earlier one have a jumper to enable double hi-res?    Is one more
desirable in use than the other?

Thanks as always!
  ~ J