QBUS boards...

[Patrick Finnegan]

Gene Buckle declared on Saturday 25 September 2004 04:14 pm:
> First up is a Parallax graphics board with the number 990-0001 on it.
> It's got a small cab kit with four BNC connectors on it marked RGB and
> Sync.  There's a 75Ohm terminating resistor on the Sync connector.

It looks like Parallax produced at least a few different QBUS framebuffer 
boards.

> Next is a board made by MDB Systems that has "MLSI-DR11-W" printed on
> it. It's got a cab kit with it that has two 37 pin(?) d shell
> connectors on it.

It's probably the MDB QBUS equivalent of a DEC DR11-W, which is a 
"General purpose DMA parallel interface".

> I've got a cab kit for a PDP-11 of some kind (I _think_).  It's got
> two 25 pin d-shell connectors on it marked "A0 (Console)" and A1. 
> Each has a rotary knob underneath for setting a baud rate.

This sounds like the cab kit for an 11/23+, or possibly an 11/53.

> A D315 distribution panel.  Has four 25 pin d-shell connectors on it.
>
> A three board set joined with short IDC cables consisting of one M7169
> and two M7168 modules.

That's a VCB02 framebuffer card for a QBUS VaxStation.

Nothing looks particularly valuable from the list.  I'd say $5-10 per 
item would be a fair value, unless you find someone who has a real need 
for one of them.

Pat
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