Date   : Sat, 22 Mar 2008 14:05:15 -0000
From   : acorn@... (acorn@...)
Subject: Self Built 1770 ?

Hello.

I was thinking earlier today...

I would like to upgrade one of my B's to have the 1770 instead of the 8271
(mainly for convenience of using 3.5" floppies)

As funding is very tight (I am a full time carer for a relative so have very
little income) , I was thinking of using the 1772 from a (broken) M128 PCB
I have lying around.

I understand I only need a few other straightforward logic chips too and
(hopefully) will be able to make something out of veroboard (possibly)

Does anyone have any thought's about this please ?


Andy.