Kearney & Trecker Core memory, may be PDP8
bqt at update.uu.se
Tue Nov 11 21:18:03 CST 2014
On 2014-11-12 04:00, Jon Elson wrote:
> On 11/11/2014 07:33 PM, jwsmobile wrote:
>> I can't tell for sure, but this auction may be for PDP8 core board.
> Boy, that SURE looks like PDP-11 memory, not PDP-8.
> The cast metal stiffener I think came in at least very late in the game
> for the PDP-8. PDP-8s usually had the colored plastic pull handles.
The fact that the board have four edge connectors and not six totally
excludes PDP-11. As for hex size with metal handles, that was used on
the 8/A. (Which indeed is late in the PDP-8 game, but then again, it
wasn't until the 8/A that you saw hex boards either, so if this would be
for a PDP-8, it would have to be an 8/A, since no other model fits the
But this is not 8/A core memory either, since those actually have all
six connectors on the board, even if only a few signals were used on
connector 5, and no signals were used on 6.
But since this isn't even DEC stuff, it could still possibly have been
something for a PDP-8. PDP-11 is still out of the question because of
the four connectors.
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