> > I believe this was the chip used in late-model Commodore PETs (after
>> they designed out the earlier 6550 chips); maybe someone wants to
>> confirm this for the list.
>
>Not sure. I think there was a redesign of the static PET, but I thought
>it used 2114s (same geometry as the 6550s). There might be schematics
>on funet.
Ok, I just found my schematics for the PET, labeled "Dynamic
PET P.C. Board Assy" and dated 1/16/79. It shows a total of 16 -
4116 dynamic RAM chips possible, with the 2nd bank of eight being
optional. It also shows two 2114's at locations UF7 & UF8. I don't
have schmatics for the earlier PET's though.
Jeff
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Received on Fri May 03 2002 - 17:14:57 BST