Re: PET 3032 alive :)

From: Ethan Dicks <*ethan.dicks_at_gmail.com*> Date: Thu, 2 Feb 2017 11:21:49 -0500 Message-ID: <CAALmimnUmPcoWOsUNxZsYcp31ZyV3iaLsd7Pt1h_Q+qVesbUKg@mail.gmail.com> · ethan.dicks_at_gmail.com

On Thu, Feb 2, 2017 at 9:57 AM, Francesco Messineo
<francesco.messineo@gmail.com> wrote:
> I do have a few 6821, but I read that the 6520 is equivalent to the
> 6820. Isn't it?

I'm not positive on a feature-by-feature, bug-by-bug comparison, but
as used in the PET, I'm pretty sure the 6821 is a drop-in.  I've done
it, but I can't promise 100.00% functional compatibility (I can't
recall if my IEEE-488 tests were completely successful or not, but I
think I have bad sockets too).  It won't break anything, but it's
_possible_ there could be something that isn't *exactly* the same.
Since you have the 6821, I'd pop one in and look for your cursor and
keyboard to return.

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