[pups] pdp11 in Utah

Gregg C Levine hansolofalcon at worldnet.att.net
Fri Nov 2 02:28:19 AEST 2007

(Regular address time.)
Yes I agree from your photos he is standing on his head. And judging from
everyone else's descriptions, he's slightly larger then the others who live

Have there been any other takers?

Gregg C Levine hansolofalcon at worldnet.att.net
"The Force will be with you always." Obi-Wan Kenobi

> -----Original Message-----
> From: pups-bounces at minnie.tuhs.org [mailto:pups-bounces at minnie.tuhs.org]
On Behalf
> Of Kees Stravers
> Sent: Thursday, November 01, 2007 11:16 AM
> To: Brad Midgley
> Cc: Milo Velimirovic; pups at minnie.tuhs.org
> Subject: Re: [pups] pdp11 in Utah
> This is a BA23 box with what looks like an early PDP-11/23 in it. You
> have it upside down on the photo, so it is best to turn it over, or else
> the power supply will burn out because of overheating. The power switch
> should be at the top. It has a RD53 70 MB Micropolis harddrive and a
> TK50 95MB tape drive. Since it has four serial ports, one of which is
> the console, I think it has a CPU card without a serial console port on
> it, which makes it an early one. In those cases a separate four port
> serial card was installed, with the first port set to the console
> address. I have such a system in my collection.
> Kees
> Brad Midgley wrote:
> > hey
> >
> >> This sounds like a Digital BA-11 of some sort. It could be something
> >> as early as a pdp 11/20, 11/05, 11/34, 11/35, or as late as a 11/24
> >> or 11/44 -- possibly others.
> >
> > I think the toggle switches on the front need to be set right and the
> > terminal settings need to be guessed at to talk over serial. The pics
> > probably don't reveal much but they're easier than describing it.
> >
> > http://www.xmission.com/~bmidgley/front.jpg
> > http://www.xmission.com/~bmidgley/back.jpg
> >
> > I don't have the inclination to tear it open.
> >
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