21 Dec
2011
21 Dec
'11
7:28 a.m.
On Dec 21, 2011, at 4:38 AM, Pete Turnbull <pete at dunnington.plus.com> wrote:
Dave McGuire wrote:
...both very much PDP-11/23s, regardless of the sticker on the front. ;)
On Dec 20, 2011, at 9:03 AM, David Riley
<fraveydank at gmail.com> wrote:
The microPDP-11/23plus came in a BA23, usually the "storage heater" deskside
style, but occasionally as a rackmount, which is the same box but without the skins.
The PDP-11/23 and 11/23+ came in a BA11N or BA11S, and those don't have conventional
rails. The BA23 (which I'm on the lookout for, if
anyone has a spare; also looking for BA123) is in a similar boat. I don't think any
/23 or /23+s came in a BA23, though.
They did; a lab I worked in many years ago
had a direct-from-DEC 11/23 in a BA23 chassis. It was rackmounted with an expansion
chassis, running RSX. Instead they have a wrap-around black steel cover
which is bolted into the rack. It covers the top and the sides, with two front flanges
that bolt to the front uprights of the rack, and adjustable panels at the rear of the
sides which bolt to the rear uprights. The sides each have a small lip bent under the
body which the BA11N/S box slides onto. From the front it looks a bit like this (if you
have a fixed-width font!):
__________________________________
|o| |o|
| | | |
...and I'm looking for one or two sets of the rear flanges, if anyone has spares.
-Dave
--
Dave McGuire
New Kensington, PA