I saw an 11/70 front panel for sale on ebay yesterday!!! You might want
to check there for details. I don't have the URL handy.
Kevin
>
>
> > Date: Fri, 23 Oct 1998 09:15:43 -0400 (EDT)
> > From: Ethan Dicks <erd_at_infinet.com>
> > To: classiccmp_at_u.washington.edu
> > Subject: PDP-11/70 rescued!
> > Message-ID: <199810231315.JAA24826_at_user2.infinet.com>
> > MIME-Version: 1.0
> > Content-Type: text/plain; charset=US-ASCII
> > Content-Transfer-Encoding: 7bit
> >
> >
> > The Computer Quonset Hut has its first aquisition - a pair of PDP-11/70's
> > with peripherals.
>
> Lucky guy.
>
> > My biggest disappointment is that the CPUs have the corporate front panel,
> > not the programmer's front panel. Anyone have a spare front panel they
> > want to trade? ;-)
>
> Actually the panel is better in some ways (except looks) than the 11/70
> front panel.
>
> I do prefer the DECdatasystem 570 (I think) 11/70 blue corporate
> cabinet front panel for style. (The 11/74 used almost the same
> front panel -- YES I did work with an 11/74 in DEC Princeton...
> They did exist...
>
> The "programmer's" front panel doesn't exist for the PDP11/70.
> What you probably have is the 11/70 Remote Diagnostic Console
> which allowed DEC to remotely diagnose the 11/70 (even when hung
> in a microcode loop or power fail routine) from Colorado.
>
> The front panel hooks to a microprocessor controlled card which interfaced
> to a 300 or 1200/300 baud DEC or Racal Vadic modem (in auto answer
> mode) when the key is in remote. Colorado would run a diagnostic chain,
> examine the bus, read error logs etc.
>
> >
> > -ethan
> >
> > P.S. ISTR that PDP-11/70's and VAX-11/750's use the same hex-height 39-bit
> > ECC memory boards. Is this true? I know that 750's had 256K and 1Mb
> > boards (and eventually 4Mb boards), but every jump up required a new
> > memory controller (and backplane wires ;-) What's the scoop on the 11/70?
>
> They do use the same ones... I don't think the 11/70 supported more than
> the 256k MS-11K boards, though.
>
>
> Bill
> ex-DEC Field Service...
>
--
Kevin McQuiggin VE7ZD
mcquiggi_at_sfu.ca
Received on Sat Oct 24 1998 - 11:50:46 BST