On Fri, 13 Aug 1999, Pete Turnbull wrote:
> On Aug 12, 14:00, Chuck McManis wrote:
>
> > PDP-11 boards come in two flavors Unibus and Q-bus the are either 2 high,
> > four high, or six high. Generally only Unibus and PDP-8/a boards are 6
> > high. (I don't think they ever made a Q22/CD/EF backplane.)
>
> They did make one -- DDV11-B hex wide 9 slot. However, the E/F section
> isn't bussed, only having +5/+12V/0V connections (ABCD are normal Q-Bus).
> It's meant for third-party development, and there are no hex Q-bus boards.
"no hex Q-bus boards" - Really? Then the PDP-8/a CPU, and RL02
controller (for the 8/a) boards I have here must be REAL oddballs, no?
(each are hex wide boards)
-jim
---
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Received on Fri Aug 13 1999 - 09:40:43 BST