Kearney & Trecker Core memory, may be PDP8

[Paul Anderson]

pic #4 shows a DEC core sticker on the back, but out of focus.

On Wed, Nov 12, 2014 at 1:09 AM, jwsmobile <jws at jwsss.com> wrote:

>
> On 11/11/2014 9:12 PM, Jon Elson wrote:
>
>> On 11/11/2014 09:18 PM, Johnny Billquist wrote:
>>
>>> 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.
>>>>>
>>>>> KT-KEARNEY-TRECKER-ASSY-KT83-0933-KT84-020-SYSTEM-BOARD
>>>>>
>>>>> http://www.ebay.com/itm/181565552717
>>>>>
>>>>>
>>>>
>>> The fact that the board have four edge connectors and not six totally
>>> excludes PDP-11.
>>>
>> 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
>>
>>
>>  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
>