[rescue] SPARCstation SLC connector pinout

[Skeezics Boondoggle]

On Tue, 19 Jul 2022 11:04:04 -0400 Mouse wrote:

>
> Perhaps.  My visual acuity seems to be better than most people's, at
> least for things that are in focus.
>
> But 1600x1200 tends to be done with a relatively high frame rate and
> thus a high dot clock, and a lot of CRT monitors didn't have the
> bandwidth to handle it cleanly; single-pixel-wide vertical lines tended
> to be dimmer than single-pixel-wide horizontal lines as a result.  That
> was one of the few things I didn't like about that 1600x1200 bwtwo.
>
>
I have some fond memories of a 1600x1200 Sun-3/60 on my desk in the early
'90s, which for a pixel slut like me was a real extravagance until, to
remain somewhat on topic, our Sun-3s were upgraded to SLCs with their
Sun-standard 1152 x 900 displays. Sure, the Sparcs were quieter and faster
but I missed the extra elbow room.  Well into the early '00s it seemed 1280
x 1024 was pretty much the minimum acceptable working space for a
reasonable OpenWin desktop, but now 1920 x 1200 is starting to feel snug
(even with two of them side by side ;-) but that could just be my poor old
eyesight starting to go...

Of course, being a PERQ nut during my impressionable years I'd grown up
hearing about the rumored "next generation" display (and custom RasterOp
chip) that Three Rivers Computer had been developing in the '80s but never
got to see one of the mythical beasts.  I only recently discovered this
fascinating article about the challenges of developing their original
"Megascan" display:

http://archive.informationdisplay.org/Portals/InformationDisplay/IssuePDF/V04N01-1988%20January.pdf

(See "Case study: developing a 3000-line interactive CRT display" starting
on page 12.)

To sum up:  4096 x 3300 x 1 @ 300dpi on a 19" Clinton tube, 72Hz refresh,
1.5GHz data rate (pixel clock of 670ps).  Shipped in 1986.  Yes, you read
that correctly.

Cheers!
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