24 Jan
2019
24 Jan
'19
8:44 a.m.
From: Paul Koning
> Also, I still need images of a few things: -11/60
and -11/94 front
> consoles, the original LSI-11 card, the KDJ11-E, and most of the DEC
> QBUS boxes. (Yeah, I could try looking for free images
Google "pdp11/60" turns up some good
pictures, one showing the console
panel closeup is from a UK computer museum.
Which one - 'computermuseum.org.uk'? Many of the pictures I saw online were
on pages with copyright notices. I was actually hoping someone who _has_ one
the the things I listed would take a picture and send it to me.
It seems like a problem caused by taking the photo
with flash; lit by
ambient light it would probably look better.
They are in low-light locations; without flash it's a long exposure and I get
blurring because my hand isn't steady enough. And I don't feel like moving
them, or re-doing the lighting - too many higher priority things to do.
A variant of the LSI-11 is the H-11 sold by Heathkit.
.. it would be
worth mentioning.
I've seen some go by on eBait, so I have an idea of the value, but I
couldn't get enthusiastic about listing them.
Do you want to show the PRO system boards? And maybe
the I/O boards?
Again, not enthusiastic enough to put in the work...
In the discussion of boards, you might mention that
"FLIP CHIP" often
appears ... And there will be a "digital" logo, the 7-box kind.
OK, I will add that.
(on older boards?All boards? Many boards regardless of
age?)
It's spotty, and seems to die out later on. The -11/40 boards have it, but
for the -11/45 and -11/70, some do, and some don't. None of the KDF11 or
KDJ11 QBUS CPU boards do.
The "Miscellaneous Digital Equipment Corporation
PDP-11 Information"
link lands me on a "Forbidden" error page.
Ooops. Fixed. Thanks.
Zane Healy
Don't forget the quad-height /73 board, it's
much nicer than the
dual-height boards.
That's the KDJ11-B, no? That's there.
Is a /44 really worth that much now?!?!
Hey, one just went for more than that: eBait #183624991924, $3K! Admittedly,
that one was loaded, but the page does say "a number of factors will cause
them to vary considerably from the numbers given here ... Exactly which
peripherals and memory are included".
But I did adjust the number a bit - the boards are going for about $50 each,
and add in a BA11-A, it's probably $700 for a bare machine. Actually, I
really need to check all the numbers.
But I think I'd rather get the QBUS boxes sorted out first; I pretty much
only know the BA11's. If someone could tell me what later boxes to list,
above the BA23, (which I also need an image of), that would be very helpful.
Noel
24 Jan
24 Jan
8:51 a.m.
On Jan 24, 2019, at 11:44 AM, Noel Chiappa via cctalk
<cctalk at classiccmp.org> wrote:
Yes, that's the one. Given the source I figured they probably would give permission.
I thought of another PDP11 variant you could mention: the PDP-11/R20. I've never seen
one in person, only photos. As I recall, it looks like a regular 20 but with metal handle
toggle switches on the console rather than plastic handles.
paul
From: Paul Koning
> Also, I still need images of a few things:
-11/60 and -11/94 front
> consoles, the original LSI-11 card, the KDJ11-E, and most of the DEC
> QBUS boxes. (Yeah, I could try looking for free images
Google "pdp11/60" turns up some good
pictures, one showing the console
panel closeup is from a UK computer museum.
Which one - 'computermuseum.org.uk'? Many of the pictures I saw online were
on pages with copyright notices. I was actually hoping someone who _has_ one
the the things I listed would take a picture and send it to me. 
9:22 a.m.
On Thu, Jan 24, 2019 at 10:44 AM Noel Chiappa via cctalk
<cctalk at classiccmp.org> wrote:
But I did adjust the number a bit - the boards are
going for about $50 each,
and add in a BA11-A, it's probably $700 for a bare machine.
Speaking of boards vs boxes, any idea what an empty BA11-F fetches
these days? I have a box with all the boards for a KB11-C (PDP-11/70)
including backplane and front panel PCB (no mounting bracket or front
plexi) and I'd like to turn it into a working machine if possible.
(I also have all the boards and backplane, and no box, for 2MB in-1670
Intel memory subsystem (eg
https://books.google.com/books?id=5OsHzHowTLIC&lpg=PA16&ots=sRWXIRa…)
- just need to fabricate a box for that and add a fat PSU. It has
over 1300 4116 DRAMs)
Actually, I really need to check all the numbers.
I would recommend adding somewhere a date for when the numbers were
last updated since prices will obviously change as time goes on.
Nothing wrong with giving out numbers, but provide them with a
"freshness date".
But I think I'd rather get the QBUS boxes sorted
out first; I pretty much
only know the BA11's. If someone could tell me what later boxes to list,
above the BA23, (which I also need an image of), that would be very helpful.
I have a number of BA23 boxes, and a BA123. The next one up in the
series off the top of my head is the BA213. I'm fuzzy after that
because we stopped buying DEC gear around that era.
-ethan
26 Jan
26 Jan
7:10 a.m.
On Jan 24, 2019, at 8:44 AM, Noel Chiappa via cctalk
<cctalk at classiccmp.org> wrote:
Okay, I obviously missed it.
Don't forget the quad-height /73 board,
it's much nicer than the
dual-height boards.
That's the KDJ11-B, no? That's there. Is a /44
really worth that much now?!?!
Hey, one just went for more than that: eBait #183624991924, $3K! Admittedly,
that one was loaded, but the page does say "a number of factors will cause
them to vary considerably from the numbers given here ... Exactly which
peripherals and memory are included".
But I did adjust the number a bit - the boards are going for about $50 each,
and add in a BA11-A, it's probably $700 for a bare machine. Actually, I
really need to check all the numbers. But I think I'd rather get the QBUS boxes sorted
out first; I pretty much
only know the BA11's. If someone could tell me what later boxes to list,
above the BA23, (which I also need an image of), that would be very helpful.
The most obvious is the BA123. A /73 in a BA123 makes for a *VERY* nice system,
especially if you have removable SCSI disk trays.
Something that comes to mind is the DECserver 500/550, it?s a PDP-11/53 with a different
PROM. IIRC, it was typically in a rack-mount BA213 chassis. I think that I have at least
parts for one around here somewhere.
Zane
1940
days inactive
1942
days old
3 comments
4 participants
participants (4)
-
ethan.dicks＠gmail.com -
healyzh＠avanthar.com -
jnc＠mercury.lcs.mit.edu -
paulkoning＠comcast.net