Bill's PDP-11/34A (was Re: PDP-11/34A bring up (question about front panel))

Dave McGuire mcguire at neurotica.com
Wed Nov 3 12:04:39 CDT 2010


On 11/3/10 12:54 PM, Pontus Pihlgren wrote:
>>>>    Hey, that looks just like the rack my 11/70 is in.
>>>
>>> It's a lovely colortheme, Update has an 11/70 with the same colors and
>>> logotype, though the rack is wider. (two racks in fact)
>>
>>    Actually I suspect that 11/34's rack is the same one, double-wide,
>> but the picture is cropped.  Anybody know for sure?
>
> I don't think so, you can see the edge of the rack in the picture. Also
> the logotyp is short enough to fit within one rack. Compare to this
> (which I think is your rack):
>
> http://upload.wikimedia.org/wikipedia/commons/3/3a/PDP-11-70-DDS570.jpg

   ROFL!  Yes, this is mine. :)  Yes, good point about the logotype; it' 
definitely extends past the middle of the rack.

> And look at Bills blue door:
>
> http://vintagecomputer.net/digital/pdp11-34a/before/2010-10-27_20-42-43_160.jpg
> http://vintagecomputer.net/digital/pdp11-34a/before/2010-10-27_20-42-09_614.jpg

   Yes, that one is clearly smaller, a single-width rack, like the one 
housing the TE-16 in my 11/70 system.  It's a separate rack with a 
cableway on the right, and it's bolted to the main (double-wide) 11/70 rack.

> I can imagine relocating an 11/70 is a chore, especially if you have
> lots of peripherals or memory expansions.

   It's not a huge system peripherals-wise, but it has two memory 
chassis.  And those power supplies are HEAVY!

               -Dave

-- 
Dave McGuire
Port Charlotte, FL



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