you can pull the BA-23's out and use them standalone.. they are simply
rackmounted.
Doc Shipley wrote:
> Hi, all.
> I went last night and picked up (OK, dragged, while groaning) the
> MicroVAX Terry Murphy posted for rescue Thursday night.
> I'm fairly certain he hadn't ever used it, as the description was not
> terribly accurate. There was no DELQA, several of the cab kits aren't
> there, memory is only 16M, etc. Nice haul, anyway. The thing came in a
> 42" elephant-ear cabinet, which is in fair cosmetic shape, and without
> plugging it in, I'd guess good to excellent functional shape. Some QBus
> boards I can't ID, and the other goodies that came with, I'll post
> separately.
>
> So.
> I'm not enamored of the idea of running a 240VAC rack in my garage if
> not necessary. That leaves me with two other ideas.
>
> 1) The "drawers" are simply BA23 enclosures, right? Any reason I can't
> use the primary enclosure as a stand-alone unit? It's going to be
> running a minimal set of hardware:
>
> KA655 CPU
> Dataram 63016 16M RAM
> DMV11 (simply to occupy the last CD slot)
> DEQNA/DELQA (whichever I can scrounge cheapest, first)
> TQK50 (undecided)
> RQDX3 (with probably only the RX50 or an RX33 attached)
>
> That _is_ the right bus order, isn't it?
> Will either the power requirements or cooling be a problem? What if I
> decide to run the RD54 instead of the TK50? Is it OK to run the BA23
> without skins, lying flat?
> And, if I want to run the second backplane and extra drives, can I
> just stack them?
>
> 2) I can put all the above in the BA123 lurking downstairs. But it
> seems a huge waste of space & power over the BA23. Plus, I don't have
> cooling vanes for the dual cards in the added CD slots, or enough
> D<mumble>11 boards to go around. Plus, the BA23 I can wedge into my
> office, but the BA123 would have to live in the garage.
>
> Advice, discussion, points I've missed, all welcome.
>
> Doc
--
David Barnes
davebarnes_at_adelphia.net
OpenVMS , Tru64, Netbsd, Linux guru
and collector of DEC equipment
Received on Sat Apr 06 2002 - 14:52:48 BST