Simulated disk drive for RT-11?

David Betz dbetz at xlisper.mv.com
Mon Jun 6 14:24:52 CDT 2005


Is there a description somewhere of all of the BA11-?? variants? It 
seems that there are many of them and they are of various sizes and 
shapes. In fact, I think that the cabinet my 11/23-AH is mounted in is 
a BA11 of some sort (a BA11-AH maybe?) but it is nowhere near as small 
as this BA11-VA that you describe. I've found various lists of QBus 
modules on the net but no list of the various boxes that DEC produced. 
Can someone point me to one?

And, I'll repeat my question, does anyone have one of these small -11 
QBus boxes they'd like to sell or trade? It seems that the BA23 might 
be a good choice as well.

Thanks,
David

On Jun 6, 2005, at 2:06 PM, Allison wrote:

>>
>> Subject: Re: Simulated disk drive for RT-11?
>>   From: Kevin Handy <kth at srv.net>
>>   Date: Mon, 06 Jun 2005 11:06:25 -0600
>>     To: General Discussion: On-Topic and Off-Topic Posts 
>> <cctalk at classiccmp.org>
>>
>> David Betz wrote:
>>
>>> Or maybe I should just run simh... I'm not really a hardware guy 
>>> anyway!
>>>
>> You could make one like DEC used to: Take an 8-slot backplane, and
>> fill in four of the slots with epoxy. You now have a 4 slot backplane.
>
>
> Yes but can you fit that in a 4.25x13x12 box with power supply?  That's
> a BA11-VA, aka shoebox.
>
>
> Allison
>



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