[CCTECH] QBUS backplanes, potentially free for shipping

From: Paul Thompson <thompson_at_new.rr.com>
Date: Thu May 23 09:18:58 2002

I will probably have some empty BA213 QBUS housings available free for
shipping. I will know if I want to grab these if I find anyone interested
in them and if I can find a box big enough to hold them as I have little
use for them myself.

One is a pedestal enclosure which orignally housed a DECserver 500 and
features 12 slots of Q-CD goodness and a single H7868 power supply.

I mention this because it appears that DEC shipped some sort variation of
the 213 for the DECserver 500 which did not support a second power supply.
The spot for the card edge backplane connector is there where the second
H7868 would plug in but no connector is present. Obviously it would not
be a big trick to rig some sort of separate power supply for drives or
tapes.

The other unit is from a rackmount DECserver 550 and appears to have a
more normally configured BA213 with space for two working power supplies,
although none are included.

Either of these units might help give your QBUS Microvax some Q22
breathing room.

On a related note, I recall that there was some ability to convert the
KDJ11 module for this DECserver into a working PDP 11/xx (83+?) with a
PROM swap? Does anyone know more about this and its feasibility?

Paul

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Received on Thu May 23 2002 - 09:18:58 BST

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