> OK, I know DEC had some graphics products (VR something? GT something?)
DEC had a long history of displays, going back to the Type 30 display on the PDP-1
Type 338, 339, and 340 displays processors for the PDP-8, 9 and 10, respectively
DEC's laboratory systems all had point plot scopes (LINC, LINC/8, PDP12)
VR was the designation for their CRTs. There were two generations of display list
vector processors (VT-11, packaged with a PDP11 CPU as the GT series) and the VS-60
and a 512x512 raster display with a similar instruction set (VS-11)
--
The E&S LDS-1 was a peripheral for the KA-10
OK, I know DEC had some graphics products (VR something? GT something?)
and I know that some of you out there are much more knowledgable about
these than I, so can I get a little help here?
Please create a free account on my web site and add information about
DEC graphics peripherals for the PDP-8, PDP-11, and DECsystem series
of computers. If you know stuff about their workstations that would
be great too!
<http://www.computergraphicsmuseum.com>
Everything is done as a wiki, so it should be easy to edit and add
information once you create yourself an account.
The whole site is run by me, and I give spammers a quick knee to the
groin when I meet them in person, so you know I'm not going to abuse
your personal data.
Thanks for your help!
--
"The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
<http://www.xmission.com/~legalize/book/download/index.html>
Legalize Adulthood! <http://blogs.xmission.com/legalize/>
Hi,
> I can't comment on the quality of their services, I just
>happened to have a magazine on the desk with their adverts
>in.
Thanks for the info, mostly just idle curiosity at the moment.
TTFN - Pete.
Ethan Dicks said:
> What I haven't been able to find online is a list of the boards that
> an H-11 typically shipped with. I know it used an LSI-11 (11/03) CPU,
> so there's that, plus a console SLU board, probably a Heath one (don't
> know the part number), the H-27 host card, and at least 16K of RAM,
> I'm figuring, but is there anything else? In particular, I'm thinking
> about bus termination... an unremarkable PDP-11/23 board set might be
> a KDF-11 + MSV11 + RXV11 + DLV11E + BDV11... that gives you (in order)
> CPU, memory, disk, console SLU, and bootstrap/terminator. What's the
> equivalent combo for an unremarkable H-11?
I'm certainly no expert on Heath gear, or DEC gear for that matter, but I've been
lucky enough to snag a couple of H11s in the last year. Here's what are in my two
systems:
Sytstem 1:
- M7270 : KD11-HA : LSI 11/2 CPU
- WHA-11-16 : 16KB memory
- H-11-5 : Serial I/O
- H27 : Floppy I/O
- M8028 : DLV11F : Async SLU
- WHA-11-16 : 16KB memroy
System 2:
- M7270 : KD11-HA : LSI 11/2 CPU
- MSC 4601 : 16KB memory
- H-11-5 : Serial I/O
- H27 : Floppy I/O
- H-11-5 : Serial I/O
- H-11-5 : Serial I/O
I haven't been able to test these out yet, though I have gotten as far as reforming
the PS capacitors and running the PSs thoroughly.
I have some original documentation for the H-11-5 serial boards, and comparing
that with the DEC handbook I discovered that the configuration jumpers, etc. are
essentially the same as the DLV11.
If these two systems are at all 'ordinary' and 'unremarkable' then there you go!
Hope this helps!
BTW, I might have HT11 on floppies hidden in some boxes. Haven't yet gotten to
doing the software inventory.
- J
Woodelf wrote:
> Tim Shoppa wrote:
>> My last batch I got from Antique Electronic Supply, on the web at
>> http://www.tubesandmore.com/
>>
>> The past few years I've been a good enough customer of theirs that
>> they sent me some chocolate vacuum tubes at Christmas time :-).
> So what have you been buying? I only need a order every other year.
Tubes, transformers, chokes. Some ham and audio stuff,
but one of my latest projects
does digital logic with several dozen 6SN7's. No, it's not
actually a "computer" in that it's not programmable but my
next thoughts are turning to that arena. The first programmable
stuff I might do would end up being plugboard programming,
most likely.
I've recently been playing with heptodes as logic gates (and
gotten many 7036's with IBM labels from AES. They're
dirt cheap, and if I do it right each will replace 1 to 3 6SN7's!)
Tim.
>
>Subject: Baseline H-11 board set?
> From: "Ethan Dicks" <ethan.dicks at gmail.com>
> Date: Fri, 22 Jun 2007 14:56:17 -0400
> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
>
>Hi, all,
>
>I dug out my H-11 and H-27 this week, to take yet another stab at
>getting the H-27 drives working. The H-11 itself works fine with
>various DEC boards (including an RXV11 + RX01), but I'd like to get it
>working as an H-11, not a PDP-11 in a Heath shell.
>
>What I haven't been able to find online is a list of the boards that
>an H-11 typically shipped with. I know it used an LSI-11 (11/03) CPU,
>so there's that, plus a console SLU board, probably a Heath one (don't
>know the part number), the H-27 host card, and at least 16K of RAM,
>I'm figuring, but is there anything else? In particular, I'm thinking
>about bus termination... an unremarkable PDP-11/23 board set might be
>a KDF-11 + MSV11 + RXV11 + DLV11E + BDV11... that gives you (in order)
>CPU, memory, disk, console SLU, and bootstrap/terminator. What's the
>equivalent combo for an unremarkable H-11?
>
>-ethan
Barest minimum:
LSI-11
16kram (or a partial populated card of 4k)
SLU (dl equivilent)
Additional items:
FDC interface for H27 (the Heath Floppy interface has a BOOT rom)
Second serial (usually printer in DEC systems)
Parallel for Heath punch reader.
A terminator is NOT required for LSI-11
nor a BDV(boot card) as uODT allwos for boot code if needed
by hand entry.
Allison
Hi, all,
I dug out my H-11 and H-27 this week, to take yet another stab at
getting the H-27 drives working. The H-11 itself works fine with
various DEC boards (including an RXV11 + RX01), but I'd like to get it
working as an H-11, not a PDP-11 in a Heath shell.
What I haven't been able to find online is a list of the boards that
an H-11 typically shipped with. I know it used an LSI-11 (11/03) CPU,
so there's that, plus a console SLU board, probably a Heath one (don't
know the part number), the H-27 host card, and at least 16K of RAM,
I'm figuring, but is there anything else? In particular, I'm thinking
about bus termination... an unremarkable PDP-11/23 board set might be
a KDF-11 + MSV11 + RXV11 + DLV11E + BDV11... that gives you (in order)
CPU, memory, disk, console SLU, and bootstrap/terminator. What's the
equivalent combo for an unremarkable H-11?
-ethan
---------------Original Message:
Date: Thu, 21 Jun 2007 12:57:57 -0700
From: Al Kossow <aek at bitsavers.org>
Subject: Caig ProGold / Stabilant 22
The wisdom of using this stuff was being discussed on another mailing
list, so I thought I'd see what people knew about it. I suspect it is
similar to this:
http://www.stabilant.com/techt20h.htm
There seems to be almost nothing on the web about what the Caig stuff
actually is. Materials safety data sheet lists ingredients as 'trade secret'
Reasonable discussion of the Stabilant stuff in patent #4696832
--------------Reply:
I've used Stabilant22 for years to coat edge connectors on boards in
systems exposed to heavily contaminated industrial environments.
Works well; expensive, but a little goes a long way.
mike
> What I want to know is, what did they write the original mac os on.
Lisa
> And is that what they wrote the subsequent versions on?
Lisa for the System until roughly the start of MPW when there was a
Mac-hosted build environment. The ROM was entirely assembler and could
be built on a Mac Plus with HD20 (slowly).
Parts of the system converted from Pascal to
C through the 80's.
