ben wrote:
> What I would like to get is a serial printer (rs232), with a definable
> character set. Does any one know of a cheap one?
Probably not cheap unless you get lucky, but an excellent choice would
be the Toshiba P1351 (not to be confused with their later 1351 laser
printer) or the narr
jim stephens wrote:
> Sad day when AOL changed to CDs and you then had to make
> coasters or trash them.
My wife and our neighbor use them as reflectors to scare birds away from
her garden. We finally ran out of the AOL CDs and are now working on my
backlog of MSDN CDs. I keep them stacked on
I would also buy at least two, probably three.
Alan Frisbie
Earlier, I wrote:
> 30-pound struts are not strong enough. They improved things a bit,
> but it still takes a lot of effort to raise the box. I have ordered a
> pair of 50-pound struts and will post an update when they arrive (next
> week).
The pair of 50-pound struts arrived today, and in my
Chris Zach wrote:
Jesus. How much does the 11/44 chassis weigh?
On 12/30/2021 3:39 PM, Alan Frisbie via cctalk wrote:
2. 30-pound struts are not strong enough.? They improved things a bit,
but it still takes a lot of effort to raise the box.? I have ordered a
pair of 50-pound struts and
On 12/25/21 3:37 PM, I wrote:
I made a wild random guess and ordered two of the 30 pound struts,
which should be delivered Wednesday (12/29/2021). The 40 pound
ones have a seven week lead time, and a pair of 50 pound ones seem
way too high. When they arrive, I'll let you know how well they wor
Mark J. Blair wrote:
> When I need gas struts and cannot identify a source for exact original
> replacements, I usually look at McMaster-Carr first:
> https://www.mcmaster.com/gas-struts/
Thanks for the McMaster-Carr suggestion, I should have thought of that.
I removed the gas struts from my P
I have a PDP-11/44 system in the DEC 41" high cabinet.
It is designed to be tilted up for service, aided and
supported by two gas struts, one on each side.
Unfortunately, after all these years, the struts have
failed and do not provide any assistance. That box is
heavy!
Does anyone know where I
Rob Jarratt wrote:
I am looking for the service guide for the RF30 DSSI disk. It is not on Manx
and not on BitSavers. Does anyone know of a copy? The part number is
apparently EK-RF30D-SV.
If anyone finds one, I would greatly appreciate a copy also.
Thanks,
Alan Frisbie
I just unpacked the rack with my TU56 DECtape drive and discovered that
the movers managed to break the takeup reels. This, despite many layers
of foam padding, stretch film, and warning signs. On the other hand,
this was the only item that suffered any damage at all. Not too bad for
three movi
I am in need of some disk cartridge storage racks. The kinds I am
looking for are the ones used for front-loading cartridges (IBM 2315,
DEC RK05, etc.) as well as the ones for top-loading cartridges (IBM
5440, DEC RL02, etc.).
They were typically made of welded wire, and stored the cartridges
on
Al Kossow wrote:
> On 8/25/21 4:51 PM, Alan Frisbie via cctalk wrote:
> > I recently acquired a Wilson Laboratories SX-530 disk exerciser
> > for SMD interface disk drives.? Unfortunately, it did not come
> > with a manual.? Does anyone out there have a copy they could
>
I recently acquired a Wilson Laboratories SX-530 disk exerciser
for SMD interface disk drives. Unfortunately, it did not come
with a manual. Does anyone out there have a copy they could
make available? Yes, Bitsavers was the first place I checked. :-)
Yes, I still have some SMD drives in work
Now that I am finally getting my vintage computer accumulation
in order, I need a punched card file cabinet. Does anyone know
of one that might be available for purchase or trade? I am willing
to pick up anywhere in the western US.
In an ideal world, I would love to find one of the ones with a
Charles Dickman wrote:
> There are indications in the KDJ11-B processor spec on bitsavers that
> the M8190 could be used in a multiprocessor configuration. For
> example, bit 10 of the Maintenance Register (17 777 750) is labeled
> "Multiprocessor Slave" and indicates that the bus arbitrator is
Al Kossow wrote:
> anyone willing to chip in some money to help me pay for this?
> https://www.ebay.com/itm/303733340900
I don't have a PDP-11/84 and likely never will but I just
sent you $150. Bitsavers has saved my bacon multiple times
and it's only right that I support you.
In about a mont
Fred Cisin wrote:
> On Tue, 25 Aug 2020, Alan Frisbie via cctalk wrote:
> > A few months later, two guys named Steve showed up at a meeting
> > with a kit they called the "Apple I", for the grand price of
> > $666.66. I wish I had had the foresight to buy one!
On 8/22/20 8:52 AM, Murray McCullough via cctalk wrote:
> 45 yrs. ago last month, mid-July, Dick Heiser started a new industry,
> the retail computer store. It opened in West L.A. under the name
> Arrow Head Computer Company. aka, The Computer Store. This began the
> direct marketing of microcom
Al Kossow wrote:
On 8/3/20 7:25 PM, Mike Stein via cctalk wrote:
And what about your L9000 (or was it an 8000?) ? Did it also go to the LCM?
Not many left, alas...
we have an L-9000
https://www.computerhistory.org/collections/catalog/X1742.2001
Here is another one:
In 2006, Nelson Namepl
Jerry Weiss wrote:
> On 2/12/20 11:28 AM, Noel Chiappa via cctalk wrote:
>
> > > That fourth card (M7268) is apparently a connector card for the Q-Bus
> > > and drive bus.
> >
> > Yes, but actually there are 6 cards: the M7269 is a dual card which goes
> > into the QBUS backplane, and
Guy Dunphy wrote:
> Ditto for a service/schematics manual for the Documation
> TM200 punch card reader. No copy can be found.
I don't know about the TM200, but I have the technical manual
for the Documation M-200 card reader. If that will help you,
I would be happy to scan it for you. It is a
Ethan Dicks wrote:
> I have had an RK11-C for a long time that I've never tried to
> power up (I got an RKV11-D and used that on Qbus machines
> instead).
Wow, someone else with an RKV11-D! I thought I was the only
person who had one. I modified mine (using the dead bug
technique) to add 18-b
> > > Likely some disk controllers did NOT SUPPORT crossing 64K boundaries!
> >
> > No; the RK11 spec says "[the two extended memory bits] make up a two-bit
> > counter that increments each time the RKBA overflows".
> >
> > The actual error turns out to be slightly different to my guess; there'
j...@mercury.lcs.mit.edu (Noel Chiappa) wrote:
> > From: Alan Frisbie
>
> > Harbor Freight sells a nice hydraulic lift table for under $200 that I
> > have found very useful for that sort of thing. It doesn't go up very
> high
> > (like for the top of a rack), but I used it with s
Jack Harper wrote:
I got both drives into the rack this past weekend and I am an old guy
(67) - I carefully stared at the thing before I started and finally
figured out that I could, in fact, lift the drive from a waist high
cart for a few seconds, but definitely could not lift it or lower it
v
> > Alan Frisbie via cctalk wrote:
> > I always found it amusing that Data General's computers were
> > named after transitory phenomena: Nova, Supernova, Eclipse.
> Bruce Ray wrote:
>
> I see what you mean... sorta like the DEC "Rainbow"?
Good one! I didn't see that coming. :-)
Alan
Bruce Ray wrote:
> Really, the Nova is 50? Yup - so join us in celebrating the personal and
> technical impact of this youngster..
I always found it amusing that Data General's computers were
named after transitory phenomena: Nova, Supernova, Eclipse.
Of course, in the grand scale of things, w
Chuck Guzis wrote:
> I'm looking for a small quantity of 10.5" half-inch reel tape seal
> belts. These are the things that almost everybody with a large
> collection of tapes used to hang their half-inch tapes in racks made for
> the purpose.
> I can't seem to find anyone who is sitting on a p
Chuck Guzis wrote:
> In WWII radio equipment, MGs in a unitzed form called
> "dynamotors" were used to supply the high-voltage anode voltage
> for the tubes.
And long after WWII! In the 1960s, I had a Motorola 140D (140
for the power, "D" standing for Dynamoter) mobile radio (6 meter
ham band)
To estimate postage, I am in Los Angeles, California.
Since several people have already indicated interest, I will wait
until the digest goes out tomorrow to give those people a chance.
Then I will put the names in a hat and have my wife draw one.
I'm very happy that I won't have to toss this in
While cleaning out my office, I found a brand new, unopened copy
of WRQ Reflection 4+ version 5.0 for DOS. It provides (per the
box):
Accurate emulation of Digital VT340, VT320, VT220, VT241, VT102,
and VT52 terminals, with VT420 features.
Windows-like interface with pull-down menus and
Tony Duell wrote:
> > until the 8085 CFE loaded the microcode.
>
> Loaded from a TU58 cartridge, which is the main reason my 11/730 is not
> running at the moment. The hardware is fine, I've rebuilt the drive rollers,
> but as yet don't have a readable tape (not even blank, to write the
> microc
Douglas Taylor wrote:
> I just got one of these and wanted to configure it via the 10
> pin RS232 port on the board.
> Is the port a standard DLV11-J type?
Yes, it is identical. I was the original beta tester on the
SCDC and used it extensively. In fact, the designers called
it "the Frisbi
j...@mercury.lcs.mit.edu (Noel Chiappa) wrote:
Err, which RLV11/RLV12 emulators are you seeing? I know of several RL02
emulators - Reinhard Heuberger's, and another I can't immediately find my
saved info on - (and one crazy project that turned a real RL02 into a USB
device :-), but you still nee
"pe...@rittwage.com" wrote:
> You don't want to try to repair the controller? There are some custom
> IC's on there (it appears) but is largely off-the-shelf TTL... I'm
> sure someone on the list has a lot of experience with these and could
> repair it or help.
Indeed, I DO want to repair it, b
Several days ago I wrote about my joy of finding a TDL-12 disk
controller, emulating four DEC RL02 drives and using a SCSI drive.
Sadly, I discovered that the controller is a dead as a doornail.
It doesn't respond to any bus address at all.
So, I'm back to my original quest: I need a controller t
I don't know if Glen Slick is on this list, but I owe him one!
I am working on an elderly PDP-11/23 system running RSX-11M v3.2 -- too
old to know about MSCP disk controllers like the RQDX1/2/3 and compatibles.
It is only sysgened for RK05, RL01/2, and an incompatible 3rd-party disk,
but neither
I'm cleaning out my accumulation of "stuff" and there are several
things that aren't worth the effort of putting on ebay. If
anyone on this list wants them, they are yours for the cost of
shipping. The first item is:
QB-5JCAG-SA
Compaq Storageworks
RAID Array 450 V5.4A Platform Software Kit f
Ethan Dicks wrote:
I don't happen to have a VR201 here right now to measure directly (or
I would just do that), but IIRC, there's a threaded mounting insert on
the bottom (for the "E.T. Stand", if nothing else), I want to
fabricate a shelf clip for a VR201 and am seeking the diameter/thread
pi
Paul Koning wrote:
> I have two items that I'd like to send to a good home. That
> means, someone who can read the item in question and make it
> available so it's preserved.
> 1. A DECtape labeled "VT30 distribution for RSX11D V06-B".
> VT30 is a DEC CSS product, a color alphanumeric terminal
couryho...@aol.com wrote:
what is this NCR modem? what did it go to?
NEW Vintage 1971 NCR Acoustic Coupler Modem, NOS, Factory Boxed, C260-400
/ F01 132411929563 on the bay
It is a Bell 103A compatible modem (110 or 300 baud) used with the NCR 260
series of thermal printing terminal
Al Kossow wrote:
> Need to update my reader anyway soon, so I'm going
> to append something similar to what you did the new
> images I create, probably just a ascii text record
> and a label picture.
For the many hundreds of 9-track tapes I'm turning into
image files, I am also including an ASC
On 07/06/2017 02:01 PM, Paul Koning wrote:
On Jul 6, 2017, at 4:20 PM, Alan Frisbie wrote:
...
TRAX was designed around a modified version of RSX-11M-Plus,
v1.0, yet no mention of it survives today. Indeed, a year after
its announcement, it appeared to have sunk without a trace.
I don't reme
Since it is doubtful that I will ever have a need for them,
and I badly need the space, I am selling my TRAX documentation
set on ebay:
http://www.ebay.com/itm/142437733294
or search for "TRAX" or Seller Frisbie99
This includes the five TRAX manuals that are NOT on Bitsavers.
Description:
In 19
Al Kossow wrote:
https://strandgames.com/blog/magnetic-scrolls-games-source-code-recovered
and now we know why all the questions were asked recently
So, what are the currently-recommended tape baking temperatures and times?
I have been using 58C/136F for 24 to 48 hours with some luck, but I
Al Kossow wrote:
> Alan Frisbie via cctalk wrote:
> > Our current project is to replace the ST-506 disks with
> > the David Gesswein MFM disk emulators. To do this, we
> > need to determine the CRC algorithm used by DTC, which we
> > cannot find any documentation f
In the early 1980's, a company in Toronto, Hazelcom Industries,
produced a music synthesizer based on an LSI-11/23 running
RSX-11M v3.2. The music part of it was written by David McLey,
so the product was called the McLeyvier (pun intended).
Several people in the industry have told me that this
Marc Howard wrote:
> Although I can find the RK11D users manual on the web there doesn't appear
> to be print set (schematics) out there. Does this exist somewhere under a
> non-obvious name?
The RK11-D controller maintenance manual is on Bitsavers at:
/pdf/dec/unibus/EK-RK11D-MM-002.pdf
I sc
"Shoppa, Tim" wrote:
The bitsavers archive is 267 Gbytes.
And growing. I just sent Al a CD with 450 MB of scans of
old obscure IBM manuals from the late 1960s and early 1970s.
One example:
225-3360-1 2030 Processing Unit Field Engineering Theory of Operation
(It describes all the internal op
j...@mercury.lcs.mit.edu (Noel Chiappa) wrote:
> One DEC book I really crave, but _cannot_ find, is the "PDP-11 Systems
> Handbook" ("Featuring: MicroPDP-11/83 MicroPDP-11/73 MicroPDP-11/53
> PDP-11/84"). If anyone has an extra copy of this they're willing to part
> with, please let me know,
I h
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