You can pick up Tektronix X-Y displays fairly cheap
but they are small. I picked up 2 perfectly good ones
that just needed cleaning and a new cord plug for
$15.00 ea locally. I missed a BIG HP unit (with about
a 9" screen) that went for only ~$20 on eBay.
--- Tom Uban <uban_at_ubanproductions.com> wrote:
> Very nice!
>
> For a temporary X/Y screen solution, you might
> consider using a display
> from any
> of the Atari vector graphics games, such as
> Asteroids. They should be cheaply
> available -- most were made by Wells Gardner.
>
> --tom
>
> At 09:19 PM 8/30/2002 +0200, you wrote:
> >Some 20 odd years after it was decommisioned we
> finally got our PDP-9 to
> >boot software off an old DECTape. Advanced Software
> System version 5A
> >came up today for the first time on our restored
> -9.
> >
> >This after a long and frustrating summer when we
> spent over 100 man hours
> >chasing a processor fault which resulted in the
> execution of the saved PC
> >value after an interrupt (instead of the word after
> the saved PC value).
> >Turned out to be a misaligned delay circuit which
> caused a reset signal to
> >arrive late and provoke all sorts of havoc in the
> processor while nicely
> >reseting all the tell-tales.
> >
> >Seems like the memory and processor hardware is
> quite stable now. We have
> >two DECtape units attached with two more units
> availabe to be attached.
> >Further debug on the DECtapes and learning the
> software will be followed
> >by attachemnt of TU20 mag tape units.
> >
> >If anyone knows of an available (and cheap) large
> X-Y plotting scope
> >preferably somewhere in europe we would be very
> interested in hearing from
> >you. We have a graphics controller but no large
> screen. With the screen,
> >the DECtapes and the TU20's this is going to be one
> impressive system.
> >
> >We also used the -9 for the first time today to try
> and recover an image
> >from an old Elliott 903 paper tape I was given in
> the UK recently. Due to
> >operator error that attempt failed but I fully
> expect to be able to get a
> >tape image this weekend.
> >
> > -- hbp
> >
> >
> >
>
__________________________________________________
Do You Yahoo!?
Yahoo! Finance - Get real-time stock quotes
http://finance.yahoo.com
Received on Fri Aug 30 2002 - 18:56:01 BST