PDP-11/73 booting!

[Allison]

>
>Subject: Re: PDP-11/73 booting!
>   From: Pete Turnbull <pete at dunnington.plus.com>
>   Date: Tue, 13 Dec 2005 00:10:56 +0000 (GMT)
>     To: "General Discussion: On-Topic and Off-Topic Posts"<cctalk at classiccmp.org>
>
>On Dec 12 2005, 18:01, Allison wrote:
>
>> uVAX-II and 11/73B need/require over the top.  11/23B (and 11/73A)
>> is strictly Q22.  I happen to have the earlier non-pmi 11/73.
>> And of course the uVAXII.
>
>11/73 doesn't need over-the-top and has no provision for it.  As an
>11/73 it's supposed to be used with normal QBus memory, but all will
>work with PMI memory (a la 11/83, in fact they're the same board).
>

I did say 73B didn't I?  There were two different J11 cards, I am using 
the M8190 KDJ11-B which is Q22.  However there is a later J11 that uses 
the PMI memory.  I have memory for that one but not the CPU.

I have every Qbus PDP-11 from the LSI-11/03 through the 11/73.

Here in the greater Maynard area we get to see more of the bits that DEC 
sold.  Then again I got the option during the great bleed to purchase my
underdesk systems for a token amount as we all left that facility.  Many 
others did as well. 


Allison