[GreenKeys] just bagged a heath TU off eplace good to go with H89 in disp...

Christian Gauger-Cosgrove captainkirk359 at gmail.com
Mon Nov 5 13:15:11 EST 2012


Ah, will the 11/73 work in the H-11?

The answer is "Maybe." It depends on whether the H11 does anything
"funky" with the -- at the time of the LSI-11/03 -- unused bus lines
that the 11/23 and 11/73 (and later 22-bit '11 CPUs) used for the
higher order address bits.

It shouldn't since the H11 uses the actual straight from DEC LSI-11 CPU board.


You will probably also want to invest in an MSV11-L RAM; or if you
feel very bored, wirewrap the backplane to 22-bit and invest in a 512K
or 1MB RAM board.


Otherwise, it should be fine.


Cheers,
Christian

On 5 November 2012 13:04,  <COURYHOUSE at aol.com> wrote:
> I will have to make a list  ...    due to it's prior owner I would suspect
> it is as loaded as can be.  I have the floppy drives but the   disks  are
> roached ... I need to  find  some live media or a way to load and save
> some....tell me more....... oddly enough I wonder if the  ACE  video editor
> carcus  that has an  11/73  board in it would fly in this  H-11 unit!?
>
>
> In a message dated 11/5/2012 8:48:43 A.M. Alaskan Standard Time,
> captainkirk359 at gmail.com writes:
>
> Hello Ed:
>
> What kind of boards are in the H11 by any chance?
>
>
> And have you considered trying to get the H11 up and running RT-11 by
> any chance? (All you need is a PC with a serial port and a second
> serial port on the H11. And patience. BUT NEVERMIND THAT!)
>
>
> Also, you considered trying to upgrade the H11's CPU from the godawful
> LSI-11 to a PDP-11/23 CPU instead?
>
>
> Cheers,
> Christian


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