pdp8/11 console cable pinouts

From: Dave McGuire <mcguire_at_neurotica.com>
Date: Mon Dec 27 16:09:49 1999

On Mon, 27 Dec 1999, Tony Duell wrote:
>I know the RK05 internals reasonably well (even if I say so myself) and
>have the prints here. So if you need help with that, post on classiccmp
>and you should get help...

  Excellent, thank you! At this point I've got it cleaned up and cabled...It
doesn't seem to want to spin up though. No fault or anything, just no spindle
motor activity. The door locks, the "load" lamp goes out, and then nothing. I
can turn the spindle by hand, so it's not siezed, and the belt looks ok.

  I know RL01/2 drives won't spin up unless they're cabled properly, but I
don't remember RK drives having the same requirement...do they?

>I assume your packs are all 16 sector ones. The PDP8 uses those, while
>the PDP11 uses 12 sector packs (which, alas, are a lot more common).

  Yup, they're 16 sector packs...about ten of them. Mostly unlabeled.

  My "original" pdp8/e is still in storage 200 miles from here...I haven't seen
it in probably nine years...I do so love OS/8 hacking; I can't wait to get this
box running! :-) :-)

                 -Dave McGuire
Received on Mon Dec 27 1999 - 16:09:49 GMT