DoveBid Phoenix, AZ (4x) PDP 11/04 $1700,

[Paul Anderson]

Easy upgrade to a 34 or 34A,  just slip in a M7265 and 66 or a M8265 and 66.
Any cpu in any box will take the KY11-LA or LB.

Paul


On 11/30/07, Tony Duell <ard at p850ug1.demon.co.uk> wrote:
>
> >
> > On Thu, Nov 29, 2007 at 05:10:05PM -0600, Jay West wrote:
> > > Richard wrote...
> > > >>Looks like noone else wanted to pay that much either.  I don't know
> > > >>where they came up with a price like $1700 for 4 11/04s ($425 ea?),
> >
> > It's more than _I_ would want to pay for a bare 11/04 in unknown
> > condition.
>
> Me too..
>
> >
> > > To which Pat replied...
> > > >An 11/04 is somewhat more desirable of a machine than the 11/03 is
> (it's
> > > >UNIBUS instead of QBUS), but you still lack the MMU, and only have a
> > > >calculator-keypad frontpanel instead of a full lights and toggles
>
> IIRC the keypad frontpanel is an option (the 'Programmer's Panel'), as I
> believe it is on the 11/34. Every 11/34 I've seen has had the keypad,
> every 11/04 hasn't, but that's hardly a representative sample.
>
> > > >frontpane, and it's relatively slow.  So, it's not generally all that
> > > >desirable to people, compared to something like an 11/83, or even an
> > > >11/10, or 11/34.
> >
> > It's a fine RT-11 box, but so is an 11/23 (which is much more common
> > and about the same physical size).  If you had some Unibus peripherals
>
> The 11/04 has one advantage (to me) over the 11/23. The CPU is not one
> (or a few) custom chipa, it's a board of standard parts -- TTL, PROMs,
> etc. That could be an advnatage if you're looking for a machine you can
> repair easily, or what to learn (or teach) the internals of a real CPU.
>
> > you wanted to play with, you could drop a couple in there, but ISTR
> > there's a small number of empty slots after you install the CPU, memory,
> > and a console.
> >
> > I'm not saying it's an terrible machine - I have one myself.  There are
>
> I nearly got one, but eneded up taking na 11/34 instead. I don't really
> regret that choice.
>
> The 111/04 and 11/34 are pretty similar. Same backplane, mounting box
> (There are 2, 5,.25" and 10.5", but either can be used for either
> machine),
> memory, PSU (for a particular box), front panel etc. The 11/04 is a
> simgle hex-height board for the CPU, the 11/34 is 2 boards.
>
> _Somewhere_ O have an 11/04/34 user manual were references to the 11/09
> and 11/39 have clearly been whited out before the manual was
> duplicated... In fact I think one of the line drawings has '11/39' on it.
>
> -tony
>
>