12 Nov
2014
12 Nov
'14
7:09 a.m.
On 11/11/2014 9:12 PM, Jon Elson wrote:
On 11/11/2014 09:18 PM, Johnny Billquist wrote:
I based my PDP8 on googling and looking for comments about the processor
type. There was a history page which said they used PDP8s in their
designs. I know that the 6 up is more common for PDP11, but wanted to
throw it out there. I figured a core board of the right variety for
$195 might be a steal since the seller didn't list it to be on the DEC
hardware searches on Ebay.
Thanks for Al's comment on the 6800 board. I see about half of all
photos being crap these days on ebay. I was crossing fingers it would
be a design that started out as an actual dec, and maybe had a small
board built up with a Harris pdp processor on it. I know that is a
really long shot, but not impossible.
thanks for the comments.
Jim
On 2014-11-12 04:00, Jon Elson wrote:
The first and last picture of the ebay listing above clearly has
SIX
edge connectors.
And, in fact, a number of PDP-11 peripheral boards had only 4 connectors.
CPU boards and memory did usually have 6.
Jon
On 11/11/2014 07:33 PM, jwsmobile wrote:
The fact that the board have four edge connectors and not six totally
excludes PDP-11. I can't tell for sure, but this auction may
be for PDP8 core board.
KT-KEARNEY-TRECKER-ASSY-KT83-0933-KT84-020-SYSTEM-BOARD
http://www.ebay.com/itm/181565552717