On 2011-08-26 19:00, Fred Cisin <cisin at xenosoft.com> wrote:
>>> > > I think the contents would be disappointing, and prob'ly not worth
>>> > > breaking them open. They are glued. I could prob'ly cut the glue joint
>>> > > and pry one open, but it would be much more fun to use a LARGE mallet ot
>>> > > open it.
> On Thu, 25 Aug 2011, Tony Duell wrote:
>> > I preFer to open things up in the least destructive way possible. Often
> That depends on the thing, and whether re-assembly is to be considered.
> Unlike ARD, some of us sometimes feel that the greatest value that some
> things have may be as a recipient of mindless brutal violence. (even
> though neither SC817 bears any resemblance to a college administrator)
>
>> > the reason for opening some is at least to investigate the internals, if
>> > not repair them, so the less damage done the batter. Hitting it with a
>> > mallet/hammer could break an intenral PCB (if there is one) making
>> > tracing tracks a lot harder...
> Well, the largest mallet that I have handy is only 4 pounds, so I'm going
> to mail it to Poughkeepsie, instead. THAT might subject it to enough
> impact(s) to open it. If not, then somebody else can maturely and
> carefully unseal it.
Hit it with a college administrator? ;-)
/Jonas
We are waiting for a UA-11 from Guy, but in the mean time a high-priority
project is being held up for lack of a way to check out the Unibus on a
PDP-11/40.
Does anyone in the Seattle-Tacoma region have one of these that we might
borrow until we get our own?
Please feel free to reply off-line if you like.
Thanks,
Rich
Rich Alderson
Vintage Computing Sr. Server Engineer
Vulcan, Inc.
505 5th Avenue S, Suite 900
Seattle, WA 98104
mailto:RichA at vulcan.com
mailto:RichA at LivingComputerMuseum.orghttp://www.LivingComputerMuseum.org/
I'm struggling with designing adapters for situations where things sit
right above a PCB (like the CBM 1541-II PCB under the disk mechanism)
where there is not enough room for a:
Header
PCB
Socket
IC
And sometimes not enough for even:
Header
PCB
IC
A while back, I found a pic of a "low profile" header option.
Pic: http://postimage.org/image/2o6zinnk4/
Notice how the header pins are attached to a plastic "film"? Does
anyone know what that is called, or better yet, have a source for this
type of header?
Jim
--
Jim Brain
brain at jbrain.comwww.jbrain.com
Spotted on epay...thought there might be interest here...no connection
with the seller
310335159258 Lot of Zilog Z8000 CPU Manuals, Specs, Dev Mod, Assembl
310335159274 Lot of 5 Original IBM 5110 Portable Computer Manuals
--
Paxton Hoag
Astoria, OR
USA
Hi, All,
Due to an off-hand watermelon comment made around the house last
night, I rewatched "Buckaroo Banzai". I already know the computer in
the President's hospital room is a DEC Rainbow 100 (with a
faux-TV-image overlay) and the computer at the Banzai compound is an
CompuPro 8/16 ( http://starringthecomputer.com/feature.php?f=78 ), but
what's that orange-tinted terminal attached to the S-100 box?
-ethan
There is a large lot of vintage ex-JPL Modcomp gear available in the LA area, but it would require an extremely prompt pickup, with difficult logistics. These are classic TTL blinkenlights minis, with really sexy-looking front panels. It looks like there is enough material to satisfy several collectors. I'd be interested in hearing from interested folks in SoCal ASAP.
--Bill
Just noticed a rather large collection of DEC equipment including a
MicroVaxII and a CDC fixed disk on CL offered at $499
item no 2550822438. in the South Jersey (Cherry Hill) CL
Steve
From today's (August 24) Wall Street Journal front page:
http://online.wsj.com/article/SB10001424053111903596904576516552161014410.h…
Written as a bit of a puff piece, but interesting
nonetheless, given the national reach of the WSJ. It might
(though I doubt it) spur a few Wall Street types to take a
keener interest in retro gear, making things dearer and
harder for us homie hobbyists to acquire. :)
Kudo's to Ian (King) and Rich (Alderson), et al.
-- Jared
Don't suppose anyone has any U5 RAM they'd be willing to sell me?
Getting a "Memory Address not Aligned" on my Ultra5. Hoping it's just the
RAM and not something else.
Replies offlist, please.
Thanks chaps (and chapettes);
- JP
Iowa
If anybody has md5sum.txt files from Sun Solaris versions or can compute
them from Solaris ISOs downloaded directly from Sun, would you please post
them on this list? md5sums on Solaris Studio would be appreciated also.
I lost a bunch of files and I want to make sure any replacement copies I
can scrounge are legit. I have not been able to find anything using
archive.org on Sun's old site. Thanks guys.
Hello
It has been some years since I was last on the list but here goes,
I am involved with an on-line computer history preservation site its
URL is www.1000bit.com we have a good collection of computer brochures
but we are looking for more.
I was therefore wondering would any of the list members have old
brochure, sales guides etc that they would be will to part with or
sell, I am quite happy to pay a fee and shipping
I am look for most things from 1984 - to 1999 on various companies
here are just a few
Apollo/AT&T/DEC/CRAY/DG/IBM/NCR/NEC/Netframe/Tricord/Pyramid and Wang
etc
regards and many thanks
Mark
email markarmbrennan AT gmail DOT com
Hi all --
Anyone have a service manual for the HP 9485A (not the B or C)? I
picked up three of these machines in fairly good physical condition just
a couple of days ago, but their operating condition leaves something to
be desired :).
I've looked in the usual places (hpmuseum.net, and hp9845.net) but I can
only find the manual for the B/C revisions. My understanding is that
the "A" version is different in some ways (not really sure what the
hardware differences are yet.)
The good news is that one of the three 9845s just required some careful
reseating of the cards and ROMs and it now appears to be working
correctly (I haven't yet tested the printer (no paper yet) and I'm
assuming the tape drives will require a bunch of work, assuming I ever
find any tapes to use). I'd love to get the other two running as well,
hence the need for the service manual. All three appear to be complete
(with I/O, Mass Storage, and Graphics option ROMs), now if I could just
get my hands on an HPIB interface...
Thanks,
Josh
At 1:14 -0500 8/23/11, Fred wrote:
>Would you like a few "RS232 Smart Cable"s?
>
>They obviously do not work anywhere near as well as a conscious human
>being with an LED tester and a breakout box.
This depends on the human being, or possibly the definition of
"conscious". I was too ignorant to get my Rainbow talking to my NeXT
without mine, a few years back. I still have all 3, and next time I
connect them, I'll likely still be too ignorant (unconscious?) to do
without the Smart Cable...
--
- Mark 210-379-4635
-----------------------------------------------------------------------
Large Asteroids headed toward planets
inhabited by beings that don't have
technology adequate to stop them:
Think of it as Evolution in Fast-Forward.
I am a bit confused about this. I have an MicroVAX II in a BA123 enclosure
with an RQDX3 which has a problem with not seeing the disks (which I know to
work), when I try to boot from a disk I get DEVINACT. I am beginning to
suspect a fault in either the RQDX3 or the M9058. I decided to make sure
that the cable between them was the right way round as the cable I have does
not have keyed connectors. Here is where I get confused.
On the M9058 printset
(http://bitsavers.org/pdf/dec/qbus/MP02259_RQDX3_schem_Oct85.pdf) it shows
the M9058 as having pin 1 on the left of the card (when looking at the
component side with J12 at the top). The printset does not show where pin 1
is on J1 of the RQDX3, but I had it connected to the uppermost side of the
connector when the board was installed in its slot. In this configuration
the front panel lights show green when I apply power.
However this gets the error I mention above. I checked my MicroVAX II in a
BA23, this machine accesses the disk just fine, but the cable is connected
with pin 1 at the other side, ie opposite to the BA123. I tried inverting
the cable at the RQDX3 in the BA123, but it still gets DEVINACT and this
time the front panel lights don't work.
I am pretty sure therefore that the cable was in the right way round in the
first place, and that looking at the BA23 is a red herring, possibly with
the cable being inverted at both ends and therefore "correct".
Can anyone confirm that I have the cable oriented correctly in the BA123? In
other words pin 1 at the bottom of the connector on the RQDX3 itself when
installed in its slot, and on the M9058 pin 1 on the left of the card when
viewed component side with J12 at the top (ie at the top again when the
M9058 is mounted in its slot)?
Thanks
Rob
This message has been forwarded from Usenet. To reply to the
original author, use the email address from the forwarded message.
Date: Mon, 22 Aug 2011 06:01:41 -0700 (PDT)
Groups: comp.sys.dec
From: olinhamrick at windstream.net
Org: http://groups.google.com
Subject: PDP-11/23 and peripherals available
Id: <644fd724-48ed-4631-be38-9aca8a334d7b at b20g2000vbz.googlegroups.c
om>
========
I have in storage a PDP-11/23 with two RLO-2 drives (I think), two or
three VT100 (or 101?) terminals, a line printer and a spare RLO-2
drive.
I would like to get rid of the whole lot, located in Mt. Pleasant, SC.
The mini-mainframe was last powered up in about 1995.
Does this stuff have any value? Is there a market for it or for any
of the parts?
Do you have any serious suggestions re how I might get rid of it.
I have already had several suggestions such as 1) take it all out to
sea and dump it to form a mini-artificial reef; 2) construct a
catapult and send it deep into the Hell Hole Swamp; 3) buy it a one-
way bus ticket to somewhere far away; 4) offer it to any of the local
college IT/computer science depts. to be used as yard art.
The whole mess weighs about 700 lbs.
I would love to see it get recycled or put into a good home if there
is one.
Any serious suggestions would be much appreciated.
Thanks,
Rick Hamrick
At 12:00 -0500 8/20/11, Rich wrote:
> I got an email from someone in Landrum, SC (close to Greenville and
>Greer)
Grab it before it washes away.
Rich, you might return cautions and good luck wishes to the original
source for us.
http://www.nhc.noaa.gov/graphics_at4.shtml?5-daynl#contents
Hurricane Irene is currently headed for thereabouts.
--
- Mark 210-379-4635
-----------------------------------------------------------------------
Large Asteroids headed toward planets
inhabited by beings that don't have
technology adequate to stop them:
Think of it as Evolution in Fast-Forward.
The 8/L, ASR33, DF32 disk emulator project has been sold. Thanks
for all your interest (and offers). Anyone who wants the DF32
emulator schematic and artwork, I can email you a copy. I hope
someone can take my "first draft" and make a useful unit for those
who are interested.
I have a working ADM-3A that I may want to sell also. It has a
homebrewed lower-case 2716 ROM (thanks Steve Loboyko for the font
files). I installed the "optional" parts for current loop on the
main PCB, and used it with the 8/L. The only thing that's missing
is the little aluminum panel covering the dip switches.
Any interest? Same deal as before, please email offers, "sealed
bids".
thanks
Charles
http://www.ezwind.net/jwest/photo.JPG
I have one of these bin/toolOrganizers (made by rubbermaid) on my home techbench. Love it. I'm looking for another one for my work techbench, but apparently they are no longer made and my google & ebay searches have come up dry. Anyone have one, or know where I can get another one of these? What's a fair bounty for finding one - $20?
Jay
I sent the email below out a little while back, just wondering if anyone has
any advice?
Thanks
Rob
_____________________________________________
From: Rob Jarratt [mailto:robert.jarratt at ntlworld.com]
Sent: 23 July 2011 21:25
To: General Discussion: On-Topic and Off-Topic Posts
(cctalk at classiccmp.org)
Subject: RD53 Stiction
I have an RD53 which is suffering from the sticky bumper
problem. Normally I can resolve this with a sliver of paper placed over the
sticky bumper. But in this instance it seems the bumper has practically
liquefied and I think it has gummed up some of the mechanism.
Is it feasible to dismantle the assembly to clean it up? Has
anyone ever done this? Any advice?
Thanks
Rob
All,
This looks so fictitious, I just have to ask:
Anyone know "Zephyr"?
Anyone else get a similar offer?
If no and no, be careful. I have a Mac Plus and don't need a
NIB newton. Been scammed once, so I'm highly tempted to drive up to
Austin and try to arrange a face-to-face meeting. Not tempted enough,
though.
At 8:15 PM -0700 8/18/11, Zephyr Carroll wrote:
>Hi,
>My name is Zephyr and I got your e-mail off of the Antique Computer
>collector website. You had stated that you were interested in
>Vintage Apples. Well I have a Macintosh Plus, fully operational with
>keyboard and mouse, power cable and lots of Software. I also have a
>Newton in the box with stylus and docking/charging station. In
>addition I have two small floppy boxes loaded with software, and a
>sealed yes sealed in the box version of Microsoft Basic interpreter
>for mac. As well as A sealed version of the Newton pc connect
>software. I was interested in if you would be interested in adding
>these pieces to your collection. I would love to make a deal with
>you for everything, because I don't want these pieces of history to
>end up as an aquarium or landfill, since they are in working order.
>Please feel free to e-mail me, I am in the Austin, TX Area. Or call
>me if you like at 512-415-3218. Thank you for your time and hope to
>hear from you soon.
>Zephyr Carroll
>512-415-3218
>zmcbreeze at yahoo.com
--
- Mark 210-379-4635
-----------------------------------------------------------------------
Large Asteroids headed toward planets
inhabited by beings that don't have
technology adequate to stop them:
Think of it as Evolution in Fast-Forward.
> [PCs as terminals]
>> The big advantage over a conventional terminal
>> was the capability of
>> capturing output to a file or sending a file
Part of me still craves dedicated terminals
since they're just so reliable, and you can just swap
in another when it breaks. No (or few) stored settings.
Even "smart terminals" such as the BLIT
and "thin clients" are a pleasure to use
when in a properly supported environment.
But I'll admit that PROCOMM is still a wonderful program,
emulating all sorts of terminals
with screen capture, session capture and file transfer.
Not long ago, I used a DOS laptop with PROCOMM
for an embedded processor lab
so I was up and running instantly and consistently.
> Incidentally, the first PC I owned was a genuine 5160 PC/XT
> (It still runs, it's in front of me now).
Nice! There's been a resurgence in appreciation
of the "classics".
MARCH: the NJ Vintage Computer Museum
has a 5100 and 5150 on display!
> Reminds me of the tremrinal emiulator ROM for th HP9830,
Sweet! Google found this for pix and desc:
http://en.wikipedia.org/wiki/HP_9800_series_desktop_computers
My high school started everyone with programming BASIC
on the HP 9820A:
http://www.hpmuseum.org/hp9820.htmhttp://www.oldcalculatormuseum.com/hp9820a.html
Somewhere I have 2 of the 'extra capacity' cards
(HP Part #9162-0045): 10 1/2" inches long,
storing 90 memory registers per side.
I traded it away long ago, but I had a HP terminal
that was extremely "smart"
- the lid opened up to add cards for RAM or peripherals
- I think it allowed 1-2 tape drives to store/xmt files
- the CRT was a 2:1 aspect ratio: twice as wide as high.
- external keyboard that was too thick and heavy
to ever put on your lap!
-- jeffj
----- Original Message -----
> Date: Fri, 19 Aug 2011 08:27:00 -0400
> From: Toby Thain <toby at telegraphics.com.au>
> To: cctalk at classiccmp.org
> Subject: Re: 8/L has been sold. Have ADM-3A for sale.
> Message-ID: <4E4E5694.6060404 at telegraphics.com.au>
> Content-Type: text/plain; charset=ISO-8859-1
>
> On 18/08/11 4:56 PM, William Donnelly wrote:
>> Do you still have the ADM-3A?
>>
>>
>
> Me too! I'm looking for a glass tty something like this, pref somewhere
> near Toronto, Canada (DEC, Televideo, Visual, L-S, etc).
>
> --Toby
------------------
How about an ADM-11? Clean, no burn, with manual - $50.00
Downtown TO.
mike
I just came across a Tektronix labeled transformer that I removed from some scrap analytical equipment some time ago. Part No.: 120-1097-00 manufacture date 7919. The price is right - from 85704.
->CRC
Hi all,
I just came into the possession of an Xpanse PCI-to-NuBus chassis, much like the one here:
http://web.archive.org/web/20061018024944/http://www.2ndwave.com/details.as…
However, it has the 3.4 ROM, which is incompatible with the Beige G3, which is the primary . Does anyone out there have a v3.5 ROM, and is willing to provide a dump?
The ROM is located on the PCI card, in a socket.
If anyone knows how to reach the company, this would be helpful, but they seem to be out of business.
Thanks!
--Dave
>> Can anyone identify the diagnostic panel?
>> http://ferretronix.com/march/dm160_dage/
>> It's 18: DM160 indicator tubes with hand-written legends,
>> possibly from an AT&T 1ESS or early switch.
> The DM160 is a European (Philips/Mullard) number and it's quite common in
> European paper tape equipment, instrument control systems, etc over here.
> Was it commonly used _with that number_ in the States?
It had a industrial number of 6977 as well, but most commonly I've seen it called
the DM160 even here in the states.
The Soviet equivalent is the IV-15.
All seem to be readily available today from a number of sources (e.g. tube houses, E-bay, etc.)
Tim.
It's tidy-the-workshop time (or as her indoors put it, can't you get rid
of some of that junk). So I have quite a big box of surplus cables to
get rid of. Some are only fit for an advert on freecycle (assorted long
lengths of 3-core manis cable, umpteen RJ45 Ethernet cables), but I
thought the more classiccmp-ish ones might be of more interest here.
Any or all for the cost of the postage:
DB25M - DB25F 8-wire screened 2m
DB25M - DB25M 25-wire 10m
50HD - 50-"Centronics style" SCSI 1m
DB25M - 50-"Centronics style" genuine HP SCSI 1m
DB25M - 50-"Centronics style" SCSI 0.5m
DB 13W3 - DB 13W3 Sun screened monitor cable, beige 1.2m
DB 13W3 - DB 13W3 SGI screened monitor cable, granite 1.2m (for
Indy/Indigo^2)
DB 13W3 - DB 13W3 SGI screened monitor cable, beige 3m (for Indigo)
DE9M - DE9F Sun screened monitor cable, 1m (for BW framebuffer)
DE9M - DE9F Taxan screened monitor cable, 1m (brand new in bag)
HD15M-HD15M Sun VGA cable beige 1.8m
HD15M-HD15F VGA cable beige 2m
HD15M-HD15F VGA cable high quality black 2m (brand new in bag)
HD15M-HD15M PC VGA cable good quality beige 1.8m
HD15M-HD15M VGA cable PC quality black 2m (brand new)
HD15M-HD15M VGA cable PC quality black 2m (brand new in bag)
DVI-D - DVI-D cable black 1.8m (brand new in bag)
2 x DE9F - DE9F HP serial cable (null-modem) black 2m
DE9F - RJ45 HP serial cable (for Procurve/Cisco switch console) black 2m
plus a few SGI and other PS/2 mice.
But I'd like to know quickly if anyone wants any, so I can advertise
leftovers with the rest of the box on Freecycle.
--
Pete Peter Turnbull
Network Manager
University of York
Hoping someone from the list can help, I'm trying to track down a
Northern Telecom DisplayPhone for the archive.
http://dxiconsulting.com/images/northern%20telecom%20displayphone%20circa%2…
Actually had one years ago as a kid, and what I used for BBS'ing in
the early 80's. So it holds sentimental value besides archival.
--
Marty
I just posted this on comp.os.cpm
There is no indication other than the mastering number on the disk that they are different.
Now I'm wondering how many other Walnut Creek CDROMs have deleted content.
---
> Hallo,
>
> For the sake of redundancy, conservation and fun:
> an ISO of the Walnut Creek CDROM.
>
Thank you. I just discovered there are TWO versions of this disk!
The one you have has versions of teledisk removed, and has directories dated Jan 31, 1995
The original have directories dated Oct 25, 1994.
here are the only two files that differ in 00-INDEX.TXT
> TELED210.ZIP 89957 01-09-94 Disk utility that can read complete CP/M
> | disks and copy them to a file to be recreated
> | or transmitted.
> TELED214.ZIP 139264 01-07-94 Upgrade to Teled210 disk program- See
> | Teled210 for complete Manual and
> | documentation.
md5 of original is 42571cceef022c582f02dabb4ac68e2c
md5 of 1995 version is faa8c5ba9d1184b7bfc34d999a8c42c4
Can anyone identify the diagnostic panel?
http://ferretronix.com/march/dm160_dage/
It's 18: DM160 indicator tubes with hand-written legends,
possibly from an AT&T 1ESS or early switch.
I also need help with my Dage Scientific MC-3
1802 processor development system.
It is similar to the RCA COSMAC ELF.
But it is MISSING the keyboard/display panel!
Just the manual and/or schematic would help me.
Thanks in advance
-- Jeff Jonas
replying to ard at p850ug1.demon.co.uk (Tony Duell)
>> Nice! There's been a resurgence in appreciation of the "classics".
> The 5160 I just mentioned with 4 floppy drive
How did you accomplish that?
- a controller that honors all 4 drive selects, not just 2
- primary & secondary disk controller
- Compaticard or other disk controller
at "non-standard" address & IRQ?
My pre-PC systems (mostly Z80 CP/M)
all support 4 floppies per the original specs.
But NOOOOOOOOOOOOOO, the PC's "cable twist" ruined that,
limiting things to 2 floppies and 2 hard drives per controller.
Not 'till SATA have we been able to un-do that mistake :-(
> 2 hard drives
Awww, come on, you can do better than that :-)
I have a 80386 DOS system running MFM, ATAPI/IDE and SCSI.
The "4drives" shareware was the first DOS support I found
for the hard drive controller at alternate addresses & IRQ.
> MDA and CGA cards,
Dual display? What programs support that?
> 4 serial ports, 24 line user I/O (8255-based), etc.
> Not all original IBM of course
Ah yes, that reminds me of the excitement of reading
Computer Shopper and all the computer shows,
always with new upgrades: higher res graphics, more memory, etc.
Every month or so, ALL the vendors had a different brand
of add-on card. For a while it was a box with a king playing card
on the cover. Then Pine Technologies. Then something else.
For those of us USING the stuff at the time,
we were always upgrading it piece by piece.
That's why it's so hard to find one with all original parts.
> A PDP8/e with 32K words of real core
Do the boards have clear plastic for you to see the cores?
That's such a treat: true non-volatile memory!
>> My high school started everyone with programming BASIC
>> on the HP 9820A:
> I find that hard to believe for one good reason.
> The HP9820 never ran BASIC...
You got me there.
It was kinda almost similar to BASIC.
It's so close that I totally forgot
when I converted to BASIC.
Since BASIC has so many "dialects",
I guess that fuzzed my memory a little.
Thanks for the clarification.
> The HP9820 was HP's first infix-notation
> (as opposed to RPN/postfix) calculator
> and used a language that developed into the 'HPL' of the 9825 etc.
It was such a pleasure using an instant response interactive machine!
No waiting for carriage-return for the interpreter to handle the line
or waiting for the compiler for an all-or-nothing result.
> You may have guessed I have something of a soft spot for these machines.
As an undergrad, I never had the budget for a HP calculator
nor access to a HP desktop like my high school's.
Somehow a TI-55 sufficed for me as an EE undergrad.
Looking back, I just can't see how. It's *SO LAME*.
I got a HP-28C when it was new and it's still my primary calculator.
I really need that 4 line display to use RPN so I can see the stack.
-- jeffj
The two LA50 manuals listed on MANX don't seem to be accessible, and a web
search for them does not seem to turn up anything, does anyone have
EK-OLA50-IP-003 or EK-OLA50-TM-001?
By the way, anyone know of any UK sources of tractor feed paper that would
suit an LA50?
Thanks
Rob
On Sun, Aug 7, 2011 at 7:38 PM, Bill Sudbrink <wh.sudbrink at verizon.net> wrote:
> I wish I was in or going to Michigan...
>
> Ebay lot # 310337111857
The same seller also has a very complete, incredibly cool Varityper
typesetting system for $notmuch. I would love to rescue it but it's
well beyond my means (storage & transport) at this time. I am hoping
someone else will make arrangements to save it. This guy looks like
he's a scrapper!
--
jht
I give up. The 11'th attempt at repairing that gummy drive wheel resulted in yet another unround wheel that is unable to smoothly transfer cards.
I just cannot seem to find the exact size of tubing, anything constructed with heatshrink just is not round.
The clutch operation seems to be OK.
Anyone wants to sell me a few inches of KNOWN WORKING ( i.e. correct size ) tubing ?
Jos
At 19:10 -0500 8/9/11, Richard wrote:
>My friend who works with non-profits tells me that "Computer Graphics
>Museum" is too boring for fundraising. He wants me to come up with an
>alternative name that we can use.
"Pixels, Bits, and Cobwebs"
--
- Mark 210-379-4635
-----------------------------------------------------------------------
Large Asteroids headed toward planets
inhabited by beings that don't have
technology adequate to stop them:
Think of it as Evolution in Fast-Forward.
Hi,
Here in Europe, we have still collectors, so maybe this is also for interst.
My name is Gerhard and I collect DEC PDP8 and PDP11, www.compuseum.at
Thanks for note our work here.
With best regards
Gerhard
OE3GKC
-----Urspr?ngliche Nachricht-----
Von: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org] Im
Auftrag von cctalk-request at classiccmp.org
Gesendet: Samstag, 13. August 2011 19:00
An: cctalk at classiccmp.org
Betreff: cctalk Digest, Vol 96, Issue 18
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Today's Topics:
1. Re: WANTED: More regional collectors (Charles E. Fox)
2. Re: WANTED: More regional collectors (Jason McBrien)
3. Re: WANTED: More regional collectors (Pontus)
4. Re: WANTED: More regional collectors (SPC)
5. Re: cctech Digest, Vol 96, Issue 5 (Liam Proven)
6. Non-revenue-producing (Was: cctech Digest, Vol 96, Issue 5
(Fred Cisin)
----------------------------------------------------------------------
Message: 1
Date: Sat, 13 Aug 2011 05:36:42 -0400
From: "Charles E. Fox" <cfox1 at cogeco.ca>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Subject: Re: WANTED: More regional collectors
Message-ID: <338904$8c689t at fipsb03.cogeco.net>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 09:03 PM 12/08/2011, you wrote:
>Hi,
>I run the website http://oldcomputers.net
>I get a lot of old computer systems offered to me for cheap or free,
>but most I don't want - too big, or too far away to pay shipping.
>
>A while back I asked for other collectors who would be receptive to
>these orphaned systems, and over 60 people have signed-up so far!
>
>But entire parts of the US are still open - the East coast is
>covered pretty well, but west of the Mississippi River these is
>almost no one until the coast. I've got Nathan in Iowa, Richard in
>SLC, but that's about it.
>
>Send me your name, email, and what you collect, and I'll try to get
>you some good stuff (some people got some REALLY good stuff).
>
>Thanks-
>Steven Stengel
>http://oldcomputers.net
Please put me down for Windsor Ontario Canada.
Charlie Fox
Charles E. Fox
793 Argyle Rd. Windsor Ont.
519-254-4991 N8Y3j8
www.chasfoxvideo.com
------------------------------
Message: 2
Date: Sat, 13 Aug 2011 08:14:58 -0400
From: Jason McBrien <jbmcb1 at gmail.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Subject: Re: WANTED: More regional collectors
Message-ID:
<CAHG8iGVmMREt-E_m_WiG7YOjisz87Bao4a3bkqjfGfPXYgcGXw at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Jason McBrien
Warren, Michigan
jbmcb1 at gmail.com
On Sat, Aug 13, 2011 at 5:36 AM, Charles E. Fox <cfox1 at cogeco.ca> wrote:
> At 09:03 PM 12/08/2011, you wrote:
>
>> Hi,
>> I run the website http://oldcomputers.net
>> I get a lot of old computer systems offered to me for cheap or free, but
>> most I don't want - too big, or too far away to pay shipping.
>>
>> A while back I asked for other collectors who would be receptive to these
>> orphaned systems, and over 60 people have signed-up so far!
>>
>> But entire parts of the US are still open - the East coast is covered
>> pretty well, but west of the Mississippi River these is almost no one
until
>> the coast. I've got Nathan in Iowa, Richard in SLC, but that's about it.
>>
>> Send me your name, email, and what you collect, and I'll try to get you
>> some good stuff (some people got some REALLY good stuff).
>>
>> Thanks-
>> Steven Stengel
>> http://oldcomputers.net
>>
>
> Please put me down for Windsor Ontario Canada.
>
> Charlie Fox
>
>
> Charles E. Fox
> 793 Argyle Rd. Windsor Ont.
> 519-254-4991 N8Y3j8
> www.chasfoxvideo.com
>
------------------------------
Message: 3
Date: Sat, 13 Aug 2011 14:32:47 +0200
From: Pontus <pontus at update.uu.se>
To: General Discussion: On-Topic and Off-Topic Posts
<cctalk at classiccmp.org>
Subject: Re: WANTED: More regional collectors
Message-ID: <4E466EEF.7010506 at update.uu.se>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
2011-08-13 10:03, steven stengel skrev:
> I will add you.
> Everyone who replies to me will be added, whether or not I respond.
>
A reply is always nice :) I think I already signed up, but I'm in for
sweden :)
Regards,
Pontus.
------------------------------
Message: 4
Date: Sat, 13 Aug 2011 15:15:14 +0200
From: SPC <spedraja at ono.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Subject: Re: WANTED: More regional collectors
Message-ID:
<CACytpF-bpavfQd7LW17bMyiKqwY2a36ni_pXS+80H7Xi4ujEVg at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
I live in Spain. And I've received diverse items from the US during the last
ten years (at least). Mostly without problems.
Regards
Sergio
2011/8/13 steven stengel <tosteve at yahoo.com>
> I have 14 people in Europe.
> You are on the list as NW UK.
>
>
> --- On Sat, 8/13/11, Rob Jarratt <robert.jarratt at ntlworld.com> wrote:
>
> > From: Rob Jarratt <robert.jarratt at ntlworld.com>
> > Subject: RE: WANTED: More regional collectors
> > To: "'General Discussion: On-Topic and Off-Topic Posts'" <
> cctalk at classiccmp.org>, cctech at classiccmp.org
> > Date: Saturday, August 13, 2011, 12:47 AM
> > Do you ever get asked about machines
> > in Europe? Would it be worth extending
> > the scope to cover Europe? If so I am in the UK.
> >
> > Regards
> >
> > Rob
> >
> > > -----Original Message-----
> > > From: cctalk-bounces at classiccmp.org
> > [mailto:cctalk-
> > > bounces at classiccmp.org]
> > On Behalf Of steven stengel
> > > Sent: 13 August 2011 02:04
> > > To: cctech at classiccmp.org
> > > Subject: WANTED: More regional collectors
> > >
> > > Hi,
> > > I run the website http://oldcomputers.net I get a lot of
> > old computer
> > systems
> > > offered to me for cheap or free, but most I don't want
> > - too big, or too
> > far
> > > away to pay shipping.
> > >
> > > A while back I asked for other collectors who would be
> > receptive to these
> > > orphaned systems, and over 60 people have signed-up so
> > far!
> > >
> > > But entire parts of the US are still open - the East
> > coast is covered
> > pretty well,
> > > but west of the Mississippi River these is almost no
> > one until the coast.
> > I've
> > > got Nathan in Iowa, Richard in SLC, but that's about
> > it.
> > >
> > > Send me your name, email, and what you collect, and
> > I'll try to get you
> > some
> > > good stuff (some people got some REALLY good stuff).
> > >
> > > Thanks-
> > > Steven Stengel
> > > http://oldcomputers.net
> >
> >
> >
>
------------------------------
Message: 5
Date: Sat, 13 Aug 2011 14:27:02 +0100
From: Liam Proven <lproven at gmail.com>
To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org>
Subject: Re: cctech Digest, Vol 96, Issue 5
Message-ID:
<CAMTenCF9dJ9swKQsBhv_EkyXata1WHTwUN5tZ7wm2ZLZFYMYGQ at mail.gmail.com>
Content-Type: text/plain; charset=windows-1252
On 12 August 2011 18:39, Tony Duell <ard at p850ug1.demon.co.uk> wrote:
>>
>> On 7 August 2011 20:49, Tony Duell <ard at p850ug1.demon.co.uk> wrote:
>>
>> >
>> > It doesn't. Since nobody will pay me for my time, my time is by
definti=
>> on
>> > worthless.
>>
>> I am in the same boat, but recently, I have managed to get several
>> bits of paying work.
>
> Unfortunately, I've been informed by the powers-that-be that while it is
> perfectly legal for me to use my workshop for my hobby, if I make money
> using it, it's a business and I have to meet all sorts of safety
> regualtions, such as fitting guards to machine tools, fume estraction
> equipment to the soldring iron, etc. Needless to say this would cost me a
> lot more that I could evr make from doing such jobs, so while I'll hapily
> help you fix your machines, I cannot accept payment for it.
>
>
>>
>> So, in the garage & attic, I have:
>>
>> * 1 dead Apple iMac G5 20" with a well-known motherboard capacitor
proble=
>> m
>
> Do you know which capactiros are involved? Do you have replacements (or
> at least know what they should be)?
>
>> * 1 dead Apple Mac SE/30, cause unknown, but I've bought a service manual
>
> I doubt that's what I'd call a 'service manual' but I can take a look at
> the machine anyway...
>
>
>> * 1 dead IBM ThinkPad 700, due to battery leakage, that needs to be
>> stripped down and given a good clean and checked for damage
>
> OK...
>
>> * 1 dead Acorn RISC PC and a spare motherboard, which to be honest, I
>> suspect I can sort out myself :)
>
> Pitty, that's the only one I have a schematic for.
>
>>
>> Fancy having a crack at the two Macs and the "Butterfly"? Happy to pay
>> for your time, and I'll deliver them to you. I'll buy and bring a set
>> of replacement capacitors for the iMac.
>
> Quite possibly, but as I said, there'll be no charge. Alternatively I can
> bring a small-ish toolkit and test gear to you and at least fix the
> easier machines, and get some idea what needs to be done ot the others.
> Let me know...
OK, thanks, and I will do!
--
Liam Proven ? Info & profile: http://www.google.com/profiles/lproven
Email: lproven at cix.co.uk ? GMail/GoogleTalk/Orkut: lproven at gmail.com
Tel: +44 20-8685-0498 ? Cell: +44 7939-087884 ? Fax: + 44 870-9151419
AIM/Yahoo/Skype: liamproven ? MSN: lproven at hotmail.com ? ICQ: 73187508
------------------------------
Message: 6
Date: Sat, 13 Aug 2011 09:31:38 -0700 (PDT)
From: Fred Cisin <cisin at xenosoft.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Subject: Non-revenue-producing (Was: cctech Digest, Vol 96, Issue 5
Message-ID: <20110813092714.U69797 at shell.lmi.net>
Content-Type: TEXT/PLAIN; charset=US-ASCII
> Unfortunately, I've been informed by the powers-that-be that while it is
> perfectly legal for me to use my workshop for my hobby, if I make money
> using it, it's a business and I have to meet all sorts of safety
> regualtions, such as fitting guards to machine tools, fume estraction
> equipment to the soldring iron, etc. Needless to say this would cost me a
> lot more that I could evr make from doing such jobs, so while I'll hapily
> help you fix your machines, I cannot accept payment for it.
But that does NOT preclude you giving Tony an appropriate gift. Legally
gifts may include currency, but that might look like non-compliance on
Tony's part, so stick to interesting old hardware, or gift certificates to
his suppliers.
End of cctalk Digest, Vol 96, Issue 18
**************************************
Yes, I could use the RX33 format. Email me an image and I'll get
PUTR to write it out.
Use to be able to do this long ago, but I have changed computers so
many times that I lost the ability.
Doug
At 07:50 PM 8/9/2011, you wrote:
>On Tue, Aug 9, 2011 at 3:54 PM, Douglas Taylor <dj.taylor4 at verizon.net> wrote:
> > Did you ever get the disk you were looking for? I need the same thing, I
> > had one but accidentally over wrote it.
> >
> > Doug Taylor
>
>Are you looking for this in RX33 format? Given an RX33 image do you
>have the capability to write it out to a physical floppy from a PC?
>It shouldn't be too difficult to cook up a bootable RX33 XXDP image
>using SIMH. Of course only a subset of the XXDP diagnostics will fit
>on a single floppy so you need to tailor the set to the target system
>and task at hand.
>
>-Glen
At 09:03 PM 12/08/2011, you wrote:
>Hi,
>I run the website http://oldcomputers.net
>I get a lot of old computer systems offered to me for cheap or free,
>but most I don't want - too big, or too far away to pay shipping.
>
>A while back I asked for other collectors who would be receptive to
>these orphaned systems, and over 60 people have signed-up so far!
>
>But entire parts of the US are still open - the East coast is
>covered pretty well, but west of the Mississippi River these is
>almost no one until the coast. I've got Nathan in Iowa, Richard in
>SLC, but that's about it.
>
>Send me your name, email, and what you collect, and I'll try to get
>you some good stuff (some people got some REALLY good stuff).
>
>Thanks-
>Steven Stengel
>http://oldcomputers.net
Please put me down for Windsor Ontario Canada.
Charlie Fox
Charles E. Fox
793 Argyle Rd. Windsor Ont.
519-254-4991 N8Y3j8
www.chasfoxvideo.com
Anyone know where I can find the first IBM PC commercial?
It's not on youtube and they have one on Gametrailers..
I'm looking for it to post on my blog for the 30th anniversary of the PC
Sign up for the yahoo Hercules VM group. They will probably have what you need. Also google or scroogle for Bob Abeles, he is the guy that got the VM distribution from IBM packaged, IIRC.
------Original Message------
From: Christian Corti
Sender: cctalk-bounces at classiccmp.org
To: General Discussion: On-Topic and Off-Topic Posts
ReplyTo: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: Solaris 10 update 10 is available [OT]
Sent: 12 Aug 2011 15:32
On Fri, 12 Aug 2011, vintagecoder at aol.com wrote:
> Don't everybody grab it now until my downloads finish!
Still waiting for Solaris 11 and perhaps silently migrating to FreeBSD
in the future (ZFS is a must-have nowadays).
| Collecting: DOS assemblers, compilers, & books (Z80, M68K, 6502, 808X) |
| Software & doc for IBM S/360 through OS/390 |
Hmm, I could need a VM/SP Rel.5 Starter System tape image in order to
install my VMSUP distribution.
Christian
OK, my Kickstarter campaign is a great success, but it's coming upon it's
end.
If you would like to pre-purchase a special Kickstarter edition, then
please check out - http://t.co/8iSzNKF
Your welcome to freely read the entire first issue of the zine
"Historically Brewed" here - http://www.classiccomputing.com/hb.html
Thanks!
Best,
David Greelish, Computer Historian
President, Atlanta Historical Computing Society
Classic Computing
The Home of Computer History Nostalgia
http://www.classiccomputing.com
Classic Computing Blog
Classic Computing Show video podcast
"Stan Veit's History of the Personal Computer" audiobook podcast
Retro Computing Roundtable podcast
I just finished running ZRQB?? using two different RQDX1
controllers. The drive used in each case was an RD51.
While each RD51 drive works correctly under the RQDX1
controller which was used to format the drive, each RD51
will not work with the other RQDX1 controller. Each RQDX1
is able to successfully use the same RX50 floppy drive.
Each RQDX1 is so old that the version of the EPROMs
can not be read. They look to be the same, but I don't
have an EPROM reader.
I always thought that any given M8639 YA controller
produces the same format. Can anyone comment? This
is the first time that I have ever seen an incompatibility.
Any advice would be appreciated.
Jerome Fine
Hi all,
I have taken an inventory of the things I would like to pass on etc.
1.) PDP 11/73 DECDatasystem Containing the following:
a. 2X RD52; 1X RD53; 2X RL02; 1X TS05.
b. 2X BA11 type Chassis, containing:
i. M8190; M8067; Something unreadable; M7957; M7504; M3104; M7198; M8061: M9404
ii. M9405; M7555; M7513
c. Complete Orange wall of Docs for:
i. RSX 11M PLUS V 3.0
ii. MicroPower PASCAL v2.4
iii. DATATRIEVE
iv. FORTRAN 11
v. BASIC
d. Software, Approx 15 RL02 Drive Cartridges and mucho tape
2.) VAXStation 4000 VLC Includes:
a. Keyboard & Mouse
b. 2X CD Drives and Caddies
c. 2X SCSI External Storage
d. 1X VR290 Monitor
3.) VXT 2000 Includes Keyboard, Monitor and Mouse
4.) Infoserver 150
5.) VT420 & Keyboard
6.) Box 'O' Qbus cards Contains:
a. 3X Prototyping cards, includes some Qbus drivers
b. M8189; M7606; M3104; M8639; M7676; M7676; F094; adac; M3106; M7546; M7607; M7607; EMULEX QD211
7.) VT125 Complete
8.) VT101 Complete
9.) LetterWriter 100
10.) Tektronix 4105 Complete
11.) Tektronix 4105A Complete
12.) HP 7475A Pen plotter
13.) 2X RA90 Disk Drive Units
14.) AlphServer DS10 Includes keyboard, Mouse & Disc farm (6X 4.3Gb Drives)
15.) New, In Box Qbus Modules, as follows;
a. 93 08036 Music Board (never could find any info on this. It's a Qbus with phono plug outlet.)
b. A026 ADC/DAC Board
c. M3104 DHV11
d. M7607 Falcon Board
16.) MicroPDP11 in Deskside Box
17.) Hitachi ESDI 515-78 to go with the Emulex board.
18.) RD53
19.) MicroVAXII Includes 1X TK50; 1X RD53. Bare cassis only
20.) SCSI Storage expansion (1X TK50 & 1X Disk)
21.) 1 empty MicroPDP Chassis
22.) 1X Mini chassis (BA11) containing;
a. MENTEC M90 Not sure about this, as its difficult to extract anything meaningful from the board. Definitely Mentec and definitely a J11.
b. M8639; M9047; 2X Homemade I/O Boards.
23.) VAX 6000-440; Contains all the usual plus, Infoserver 1000 3X CD Drives & 2X RA90 Drives.
24.) SG Personal Iris 3D/30 including a full set of binders for IRIX
All this stuff was fully operational last time I turned it on. Again, Items are for local pick up only (Madison, WI). Donations would be gratefully received but are entirely optional. I would like to keep the systems intact as much as possible. I will begin local advertising in about a week or so.
If you are interested, please drop me a line at briandotcdotmichellatgmaildotcom Thanks for reading.
Brian.
________________________________
The information contained in this email is confidential. It is intended solely for the addressee. Access to this email by anyone else is unauthorized. If you are not the intended recipient, any form of disclosure, reproduction, distribution or any action taken or refrained from in reliance on it, is prohibited and may be unlawful. Please notify the sender immediately.
My friend who works with non-profits tells me that "Computer Graphics
Museum" is too boring for fundraising. He wants me to come up with an
alternative name that we can use.
I'm open to suggestions. The point is to have a catchy name that
(for instance) school kids will remember from their visit, or that
will catch the eye/attention of donors who don't necessarily know
anything about computing history.
If your name is selected and you're in the continental US, I have a
C=64 demoscene DVD I will award to you.
--
"The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
<http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/>
Legalize Adulthood! <http://legalizeadulthood.wordpress.com>
> There was a lot of speculation that the new machine would be 68000
> based. ? ?Shortly before the 5150 escaped, IBM came out with their
> rather cool CS9000 lab computer using the 68K and that just raised
> the anticipation.
The 9000 series was announced almost a year after the 5150 was (June
82 / August 81).
--
Will
I'm planning to make a board run of my PS/2 KB to serial/parallel adapter:
http://www.go4retro.com/2011/03/11/micro-project-ps2encoder/
I'm wondering if anyone who might use the item has any suggestions prior
to my committing the design to the PCB fab house?
* Among other things, rs232 signalling are TTL levels. Is that an
issue? (I'm not sure how to add a level shifter without expanding
the board size.
* The board offers 24 pin DIP footprint and 2x12 headers for
connections. Concerns?
* The PS/2 connector is on the edge of the board, but can be wired up
via pigtails. Is that OK?
Any suggestions welcome. I am hoping to offer the board in PCB form,
and in finished programmed form. I think the finished option would be <
$20.00, if that makes any difference.
Jim
--
Jim Brain
brain at jbrain.comwww.jbrain.com
I have a friend that needs this set up to test some Hard Drives
and get his system going. Anyone out there that have a Floppy
that they could image with image disk and send me.
Thanks, Jerry
Jerry Wright
JLC inc
g-wright at att.net
Remember doing exactly that 25 or so years ago. Wrote some process control
software; CGA monitor on top of the PC and the MDA monitor hanging from
the
roof of the factory floor displaying bundling information. Machine control
via the
parallel port which required a tiny bit of assembler but the rest was
QBasic.
Doug.
----- Original Message:
Message: 20
Date: Sun, 7 Aug 2011 19:57:39 -0400 (EDT)
From: Jeff Jonas <jeffj at panix.com>
To: cctech at classiccmp.org
Subject: Tony Duell's maxed out 5160 and PDP
Message-ID: <Pine.NEB.4.64.1108071922220.6274 at panix5.panix.com>
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
replying to ard at p850ug1.demon.co.uk (Tony Duell)
>> Nice! There's been a resurgence in appreciation of the "classics".
> The 5160 I just mentioned with 4 floppy drive
How did you accomplish that?
- a controller that honors all 4 drive selects, not just 2
- primary & secondary disk controller
- Compaticard or other disk controller
at "non-standard" address & IRQ?
My pre-PC systems (mostly Z80 CP/M)
all support 4 floppies per the original specs.
But NOOOOOOOOOOOOOO, the PC's "cable twist" ruined that,
limiting things to 2 floppies and 2 hard drives per controller.
Not 'till SATA have we been able to un-do that mistake :-(
----- Reply:
NOOOOOOOOOOOOOO, as Chuck said, you've obviously lived a sheltered life; the
PC & XT supported 4 drives just like your Z80 CP/M boxes, and instead of
"ruining" anything, the "cable twist" actually permitted running only one
motor at a time instead of needlessly spinning and wearing out the idle
disks (since most 5 1/4 drives did not have head load solenoids).
As to hard disks, how many of your Z80 CP/M ST412/506 hard disk controllers
had provisions for more than two drives?
As to other interfaces I think SCSI and IDE (PATA) both allowed more than
two drives per controller and predate SATA by quite a bit...
m
Hi
My friends and I are restoring a PDP-12. It is in quite good condition
but we are hunting down some errors in the CPU. We have engineering
drawings but we would like to manufacture a new flip chip, M161 to be
specific, That would be simpler and more "authentic" if there was
layouts available.
Was there ever layouts published? Or has somebody taken it upon the to
scan circuitboards?
Kind Regards,
Pontus.
I've been digging looking for things, and came across this unit. It
looks like a RK11-D, 4 slot hex backplane with 4 quad boards in it.
Any body know for sure? Any body need one? zip 61853, IL.
Thanks, Paul
I collect, among a lot of other things, old microscopes, and almost
anything Zeiss. I have a dozen or so of various companies and styles,
including stereo zooms, available if anyone is interested. zip 61853,
IL
Thanks, Paul
My Altair 680 has achieved the position of primary attention on
my workbench. All of the ICs are socketed. Not having seen
power in over 20 years, I did not trust the power supply as far
as I could throw a bus. I pulled all of the ICs, attached dummy
loads (automobile bulbs) and powered up. Sure enough, there was
AC all over the place (where there should have been DC). I
replaced all of the electrolytic caps and that got rid of the AC
but some of the voltage levels are very wrong, at least as compared
to what is written on the schematics. The worst offender is just
off the "plus" side of the full wave bridge (BR-1). It should be
nine volts but is actually at 11.5. This makes what should be the
main five volt rail a little more than 9 volts... the far side of
VR-1 (a 7805). The wave form coming off the transformer is really
ugly not a smooth sine wave. I hate power supplies. I don't really
understand, looking at the schematics, what this transformer should
be doing. My guess is that it should be making a nice nine volt,
60 cycle AC sine wave with each of the two outputs 90 degrees out
of sync? What could be wrong with a transformer that it would
produce something like:
__
/ \
| \
/ \_
/ \
| /
| /
\_/
bent and very squared off at spots? My scope shows nice clean 120
coming into the transformer. How do I figure out a part number for
a replacement transformer?
Thanks!
I believe you are correct Tony. It looks like dropping values into
the TMA-11 registers
while the processor is halted does not work.
I had forgotten that I have a 873-YA bootstrap loader installed which
can boot from
a TM11 tape drive. I located a backup tape that was built using
Rollin. I booted
>from the tape and I did get the Rollin command prompt on the console.
So it looks
like the tape drive is in fact working.
You are also correct that if the RK05 works (it does), the grant
signals should be
good up to the RK11 controller.
My PDP-11/05 system with 32kW (28kW usable) now has a working RK05 drive
with RT-11 v2C with MUBASIC and a TMA-11/TS03 tape drive. Once I hook up my
ASR33 teletype, I will have an authentic 1972-ish system. Later, I
will begin work
on my PDP-11/20. That system was installed in Sept/1970.
Many thanks to all who helped sort out my issues.
--barrym
Sun Aug 7 12:06:09 CDT 2011 Tony Duell wrote:
>> To test the tape drive, I used the programmer's console on my PDP-11/05 to
>> issue a read command to a mounted tape. When I issued a read command by
>> depositing a command into the TMA-11 command register, the tape advanced
>> slightly and then stopped. The 'Bus Grant Late' error was set in the TMA-11
>> status register. The status register did indicate the controller and tape drive
>> were both ready. No data was read in.
> Were you toggling in commands on the front panel with the CPU halted? I
> seem to remmber that some PDP11s will not handle bus requrests / NPRs if
> the processor isn't running, and thus if you try to operate such a
> peripheral in this wa, you will get a 'late grant' problem. It's better
> to enter a short program from the panel and run that. All the program
> needs to do is deposit the correct device command word in the right I/O
> location (you can set up all the other values -- the address, word count,
> etc -- from the panel) and loop either until the device indicates the
> command has completed, or just loop forever, and you can halt the program
> after a suitable time and examine device registers, memory ,etc.
>> The read command was issued while the processor is halted.
>>
>> This particular system did not originally have any external devices hooked up
>> to it.
>>
>> Beginning at the processor, the system has the following components installed:
>> KD11-B PDP-11/05
>> LS11 line printer card (connects to a Centronics 101A printer)
>> MM11-U 16K x 16 core memory
>> MM11-U 16K x 16 core memory
>> RK11-D RK05 disk controller
>> (See http://www.iamvirtual.ca/collection/systems/minis/PDP11-10/Boards.html
>> for details)
>>
>> The BC11 cable leading to the TMA-11 controller is put on the Unibus
>> out connection
>> at the last slot of the RK11-D controller.
>>
>> Based on previous posts from others, I suspect I don't have the processor grant
>> set up correctly.
> My first question is 'Does the RK05 work correctly?'. The RK11-D is an
> NPR device too, so if its's working, grants must be getting as far as
> that. If the're then not getting to the tape controller, there must be a
> fault either in the cable between those devices, or a fault in the RK11-D
> itself (I have had a device that failed to pass on a grant, I think one
> of the bus driver ICs had fialed. It was an easy fix, anyway...)
>
> -tony
With the help of various knowledgeable people on this list, it was
pointed out that
I did not have the connection to the tape drive controller in the
correct position.
To test the tape drive, I used the programmer's console on my PDP-11/05 to
issue a read command to a mounted tape. When I issued a read command by
depositing a command into the TMA-11 command register, the tape advanced
slightly and then stopped. The 'Bus Grant Late' error was set in the TMA-11
status register. The status register did indicate the controller and tape drive
were both ready. No data was read in.
The read command was issued while the processor is halted.
This particular system did not originally have any external devices hooked up
to it.
Beginning at the processor, the system has the following components installed:
KD11-B PDP-11/05
LS11 line printer card (connects to a Centronics 101A printer)
MM11-U 16K x 16 core memory
MM11-U 16K x 16 core memory
RK11-D RK05 disk controller
(See http://www.iamvirtual.ca/collection/systems/minis/PDP11-10/Boards.html
for details)
The BC11 cable leading to the TMA-11 controller is put on the Unibus
out connection
at the last slot of the RK11-D controller.
Based on previous posts from others, I suspect I don't have the processor grant
set up correctly.
I am currently reading several different manuals to get a description of how the
grant lines should be hooked up. I have read many descriptions of the
signalling,
but I have not located information on where to use the Grant Continuity cards
or making changes to the wire-wrapped bus. In my case, I will need to make
changes to the bus, since I do not have any of the Grant Continuity cards ;-)
Am I on the right track to assume that the problem is likely to be
the processor
grant wiring, or should I be looking elsewhere?
Many thanks for any pointers!
--barrym
My google-fu is not working today.
The Seagate ST-506 manual references
"application note ST001" for optimized seeking.
I can't find it.
Does anyone have that app note?
Thanks in advance.
-- jeffj
Hi.
I try to get my "new" PDP-11/34a back to live. I did a quick PSU test
today with dummy loads. All voltages, LTCL, DCLO and ACLO where OK so I
pluged in the logic boards. But the machine does not respond to the
knobs on the programmers console. Pressing HLT + CNTRL brings the
machine not to halt, but the "Bus Error" LED of the console lights up.
Grant continuity cards and NPR jumpers are in place.
It looks like I have the wrong bus terminator: There is a M9301-YF at
the CPU side and a M930 at the other bus end. It seems I need a M9302
in place of the M930? This would explain the bus error.
I took my scope to have a look at the ripple of the voltages.
Here is what I got on the second +5 V PSU:
X = 0.2 V / div ; Y = 2 ms / div
http://www.unixag-kl.fh-kl.de/~jkunz/tmp/5_Volt_Ripple__y=0.2V__x=2ms.jpg
X = 0.2 V / div ; Y = 10 us / div
http://www.unixag-kl.fh-kl.de/~jkunz/tmp/5_Volt_Ripple__y=0.2V__x=10us.jpg
I get similar pictures on all voltages. Both +5 V power bricks (H7441)
show similar ripple as well as +15 V and -15 V.
There are spikes with up to 1.2 Vpp and it is clearly related to the
50 Hz lines frequency. This doesn't look that healthy. I had a look at
the BA11-K power distribution schematic. The two +5 V PSUs are
independent and run of different windings of the mains transformer.
I am a bit surprised to see about the same fault on all PSUs. I am no
SM-PSU expert, so I am now at the point where I have to ask for advice.
--
\end{Jochen}
\ref{http://www.unixag-kl.fh-kl.de/~jkunz/}
Hello,
I seemingly now have my ASR-33 TTY 100% operational. It works in both LOCAL and REMOTE.
Now I just need more 1-inch 'oiled' paper for the reader/writer.
Is there a source?
Thanks-
Steve.
Paul Anderson <useddec at gmail.com> wrote:
> If the RK11-D in the last thing on the bus, remove the M930 terminator
> and place the BC11-A cable going to TM11 there, and then terminate the
> Unibus in the TM11. The RK05 can only be connected to another RK05
> (or RK03), or the terminator.
>
> I hope that solves your problems, and good luck, that's a nice system.
Thanks. I am using it as my test system before I tackle my PDP-11/20
system.
>
> Paul
Yikes! I checked the PDP-11 and the RK05. I am happy to report that both
survived the newbie torture test!! RT11 w/ MUBAS is still operational :-)
I never considered the fact that the bus inside the main system is so tailored
to the cards installed within them, especially on a slot by slot basis.
If I understand things correctly, the first RK05 drive cable is
attached to the bus
opposite the M7255 card. The RK05's are daisy chained together. The last
RK05 has an M930 terminator. In the main cabinet, the M930 terminator
opposite the M7257 card is removed and the BC11 cable leading to the 1st
slot in the TMA-11 is installed. The M930 terminator in the TMA-11 now
becomes the Unibus terminator. If the entire Unibus chain is <50 ft, then we
are good.
Are all BC11 cables the same? I see some with M919 connectors and others
with M929?
Many thanks!
PS. I am still looking for an installable RSTS-11 (version 4 or LESS) so I can
prep an RK05 drive under SimH where I can copy the image onto a real RK05
disk pack (I wrote some software to do this)
--barrym
All,
I'm trying to get caught up on my Physics Today collection
(no, I'm not, I just read the mag). There was an article in the
October 2010 issue, entitled "The Evolution of the Science Museum". I
think that article might be of interest to any of you who are in the
process of trying to make your collections publicly accessible.
Anyone who is interested, please contact me for details.
--
- Mark 210-379-4635
-----------------------------------------------------------------------
Large Asteroids headed toward planets
inhabited by beings that don't have
technology adequate to stop them:
Think of it as Evolution in Fast-Forward.
Memorex was the first independent disk pack manufacturer, beating Caelus by
several months. The decoder ring for you IBM types
1316: Mark I (2311)
2316: Mark VI (2314)
3336: Mark X (3330)
3336-11: Mark XI (3330-11)
3348 Data Module: Data Mark
I don't think Telex was first in any disk area, first PCM tape subsystems
for sure.
Memorex was first to ship a 2311 PCM and OEM and the first to ship a 2314
OEM. ISS probably beat Memorex on a 2314 PCM and I don't have a clue as to
3330.
Of course the first OEM disk drive company was Bryant.
Tom
>
> Message: 1
> Date: Mon, 1 Aug 2011 13:25:13 -0400
> From: "Shoppa, Tim" <tshoppa at wmata.com>
> To: "cctalk at classiccmp.org" <cctalk at classiccmp.org>
> Subject: Re: Looking for old Memorex gear
> Message-ID:
> <B136EDE3DF5EC441B6F08E0A7AB872450DCB139586 at EX2K7-CMS-1.wmata.local>
> Content-Type: text/plain; charset="us-ascii"
>
> > 3) Mark I, V, VI, X or XI disk packs
>
> I'm not familiar with those model names but I suspect I might know them as
> a "Memorex brand 2315 cartridge" or "Memorex brand 3330 pack" or similar.
>
> Was Memorex the first maker of IBM-compatible packs? Where did Caelus come
> in the scheme?
>
> For a while in the mid-2000's there was a Memorex brand USB keychain
> drive, which I swear was styled to look exactly like a miniature little
> disk pack. Not a very efficient of pocket space but wow, did it look like
> an old disk pack :-).
>
> > 4) A Data Mark module
>
> Help refresh my memory... Data Mark was Memorex's version of the IBM 3348?
> Head and positioner inside the cartridge?
>
>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 01 Aug 2011 10:56:16 -0700
> From: "Chuck Guzis" <cclist at sydex.com>
> To: "General Discussion: On-Topic and Off-Topic Posts"
> <cctalk at classiccmp.org>
> Subject: Re: Looking for old Memorex gear
> Message-ID: <4E368650.17242.93B3F3 at cclist.sydex.com>
> Content-Type: text/plain; charset=US-ASCII
>
> On 1 Aug 2011 at 13:25, Shoppa, Tim wrote:
>
> > Was Memorex the first maker of IBM-compatible packs? Where did Caelus
> > come in the scheme?
>
> Would perhaps Telex be the first, at least for the 3330 disk drives?
>
> --Chuck
Page 7-24 in TI 1971 set:
http://bitsavers.trailing-edge.com/pdf/ti/_dataBooks/1971_TI_IntegratedCirc…
Expander gates will be about as clear as mud in the modern logic diagram sense if you look at a single chip. Make sure to look up the 74H60 or 74H62 which is the "other half".
There was an early 70's TI TTL book (not so much databook but more of a cookbook/how-to book) aimed towards college students or guys new to TTL that illustrated expander gates in useful ways. By the 80's there are still pages in the TI databooks for the expander gates but you'd be stumped trying to decode them.
I am in the process of adding a TMA-11 tape controller with a TS03
tape drive to my PDP-11/10 system
which has a single RK05 drive attached. There no other devices attached.
I removed the Unibus terminator out of the RK05 and connected the BC11
cable in it's place. The cable
then goes to the TMA-11 controller. The TMA-11 controller does have a
terminator as well (ie. it is the
end of the Unibus).
Previously, the PDP-11/10 and RK05 worked as expected.
Now that the TMA-11 controller is connected, the RK05 drive does not
spin up. When the 'Load' button is
pressed on the RK05, I do hear the door lock solenoid engage, but the
drive spin up. If the system is
powered down and the cable to the TMA-11 is disconnected, the drive
does spin up.
Any ideas on why the RK05 would refuse to spin up when connected to
the TMA-11? I am just looking
for some pointers to narrow my search.
Thanks!
--barrym
Does anyone on the list happen to have a comprehensive data sheet for this part?
Rich Alderson
Vintage Computing Sr. Server Engineer
Vulcan, Inc.
505 5th Avenue S, Suite 900
Seattle, WA 98104
mailto:RichA at vulcan.com
mailto:RichA at LivingComputerMuseum.orghttp://www.LivingComputerMuseum.org/
Hi all,
I have reached a point where I must dissolve my collection.
I have just reached this decision, so this email is providing a head's up as it were. It seems so many people reach this point then have to get rid of their collection within the next n (where n is <10) days.....
I am in the process of making an inventory, but basically I have the following;
System 1. VAX 400VLC, 26in? Color monitor, external storage and CD w/caddy
System 2. VAX 3100-10 with Evans and Sutherland PS390 Includes connection to VAX, Evans and Sutherland Monitor, button box, Keyboard, Stereographic glasses and software.
System 3. PDP 11/23 in a pedestal enclosure
System 4. VAX 6000-440; contains 4 RA90 drives, two internal to the cabinet and 2 spare, integral infoserver and several CD drives and a TU81+ tape transport. OpenVMS 6.0 Con Dist.
And the system that got me started in this hobby,
System 5. PDP 11/23+ DECDatasystem Two Cabinet wide 19"Rack form factor; processor has been upgraded to 11/73. 3 Drives; 2 operational, one standby.
2X RD52 and a RD53. TSV05 tape transport & 2X RL02 Drives. I have numerous terminals for this system, Two Tek Graphics Terminals, a few VT type and an LA100. This system was used as a basis for developing micro controllers, to that end this system also comes with a secondary chassis, two LSI 11 Falcon boards, in the original packaging, a Mentec M90 (I think) PDP on a board, the original 11/23+ processor and several other modules. The software as I recall is RSX-11M-PLUS (V?), FORTRAN & BASIC Also comes with MicroPower Pascal for driving the external Microprocessors. The software comes complete with Licenses, about 10 to 15 RL02 disks, loads of tape and an Orange wall of Documentation. I also have a Qbus ESDI card and Drive, but have not installed those.
I am Loathe to let these systems go. But I cannot keep them. I am offering them to the list first in the hope someone will keep them alive and continue to use them. I will be taking an inventory soon and will post that as I make my way through everything. Items are for local pick up only (Madison, WI). I am looking for Donations for this equipment, which, given how unusual some of them are, I think is warranted.
If you are interested, please drop me a line at briandotcdotmichellatgmaildotcom Thanks for reading.
Brian.
________________________________
The information contained in this email is confidential. It is intended solely for the addressee. Access to this email by anyone else is unauthorized. If you are not the intended recipient, any form of disclosure, reproduction, distribution or any action taken or refrained from in reliance on it, is prohibited and may be unlawful. Please notify the sender immediately.
Just curious if anyone was attending Defcon in Las Vegas that's going on
this week and weekend?
https://www.defcon.org/
I'm leaving for it Thursday.
Keith
> I ran across mention of the Gould Quadrabyte processor in a ca. 1980
> magazine product annoucement.
> Does anyone know what CPU was used in these?
I thought it was a boardset with a gate-array+bitslice+STTL CPU that came when Gould bought S.E.L.. i.e. not a single chip CPU.
But... 1980 is before Gould bought S.E.L. right? So maybe I'm mixing things up. I don't think it was a mini-SEL-32 (I asked about this once in the 80's!)
Tim.
I ran across mention of the Gould Quadrabyte processor in a ca. 1980
magazine product annoucement.
Does anyone know what CPU was used in these?
Thanks,
Chuck
Hi Brian,
I'm relaying a message from Dave Mcguire, he's in the middle of a big move
>from home at the moment. He would be interested in te Tek Terminals. We were
curious as to which model#s these happen to be. Were located in Pittsburgh.
Thanks
=Dan
~{sent *[from ?my] ^Android}
On Aug 1, 2011 3:45 PM, "Michell, Brian" <Brian.Michell at bruker-axs.com>
wrote:
> Hi all,
>
> I have reached a point where I must dissolve my collection.
> I have just reached this decision, so this email is providing a head's up
as it were. It seems so many people reach this point then have to get rid of
their collection within the next n (where n is <10) days.....
> I am in the process of making an inventory, but basically I have the
following;
> System 1. VAX 400VLC, 26in? Color monitor, external storage and CD w/caddy
> System 2. VAX 3100-10 with Evans and Sutherland PS390 Includes connection
to VAX, Evans and Sutherland Monitor, button box, Keyboard, Stereographic
glasses and software.
> System 3. PDP 11/23 in a pedestal enclosure
> System 4. VAX 6000-440; contains 4 RA90 drives, two internal to the
cabinet and 2 spare, integral infoserver and several CD drives and a TU81+
tape transport. OpenVMS 6.0 Con Dist.
> And the system that got me started in this hobby,
> System 5. PDP 11/23+ DECDatasystem Two Cabinet wide 19"Rack form factor;
processor has been upgraded to 11/73. 3 Drives; 2 operational, one standby.
> 2X RD52 and a RD53. TSV05 tape transport & 2X RL02 Drives. I have numerous
terminals for this system, Two Tek Graphics Terminals, a few VT type and an
LA100. This system was used as a basis for developing micro controllers, to
that end this system also comes with a secondary chassis, two LSI 11 Falcon
boards, in the original packaging, a Mentec M90 (I think) PDP on a board,
the original 11/23+ processor and several other modules. The software as I
recall is RSX-11M-PLUS (V?), FORTRAN & BASIC Also comes with MicroPower
Pascal for driving the external Microprocessors. The software comes complete
with Licenses, about 10 to 15 RL02 disks, loads of tape and an Orange wall
of Documentation. I also have a Qbus ESDI card and Drive, but have not
installed those.
>
> I am Loathe to let these systems go. But I cannot keep them. I am offering
them to the list first in the hope someone will keep them alive and continue
to use them. I will be taking an inventory soon and will post that as I make
my way through everything. Items are for local pick up only (Madison, WI). I
am looking for Donations for this equipment, which, given how unusual some
of them are, I think is warranted.
>
> If you are interested, please drop me a line at
briandotcdotmichellatgmaildotcom Thanks for reading.
>
> Brian.
>
>
>
> ________________________________
>
> The information contained in this email is confidential. It is intended
solely for the addressee. Access to this email by anyone else is
unauthorized. If you are not the intended recipient, any form of disclosure,
reproduction, distribution or any action taken or refrained from in reliance
on it, is prohibited and may be unlawful. Please notify the sender
immediately.
> 3) Mark I, V, VI, X or XI disk packs
I'm not familiar with those model names but I suspect I might know them as a "Memorex brand 2315 cartridge" or "Memorex brand 3330 pack" or similar.
Was Memorex the first maker of IBM-compatible packs? Where did Caelus come in the scheme?
For a while in the mid-2000's there was a Memorex brand USB keychain drive, which I swear was styled to look exactly like a miniature little disk pack. Not a very efficient of pocket space but wow, did it look like an old disk pack :-).
> 4) A Data Mark module
Help refresh my memory... Data Mark was Memorex's version of the IBM 3348? Head and positioner inside the cartridge?
I have some databooks and docs that didn't sell and I'm offering them free
for shipping. Take one or take all.
Motorola CMOS/NMOS Special Functions Data 1986
TRW RF Devices DataBook (1986 printing)
Zenith Z-207-7 and Z-207-71 floppy drive manuals
Pragmatic hard disk subsystem brochure & documentation
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
I have a TI-59 calculator and a PC100a printer. The printer stopped working
suddenly and I would like to see if I can figure out why. Does anyone have
access to:
A) a schematic
B) a pin out for the TMC0251 controller
This year is the 50th anniversary of the founding of Memorex and its alumni
will be holding a reunion in October at the Computer History Museum. We are
looking for historic Memorex hardware and media products to display at the
reunion and then donate to the museum for its permanent collection.
Anyone know where there is
1) A 1270 Terminal Control Unit (or parts thereof)
2) A 1377 or 206x Terminal
3) Mark I, V, VI, X or XI disk packs
4) A Data Mark module
We can pay for shipping.
Any help would be appreciated
Tom
For those of you using gopher.floodgap.com and the various Mac, Commodore and
Alpha Micro resources on www.floodgap.com, thanks to Time Warner Business who
promised me two weeks for the buildout and are now up to four and counting I
will be offline completely starting tomorrow (as my current ISP contract was
terminated based on their estimate). Services on those machines will be
inaccessible until connectivity is restored, which hopefully should be in
less than a week or there will be hell to pay.
Hopefully Jay will not unsub me from the list :) but E-mail should fail over
to my MX peer anyway.
The inconvenience is regretted.
--
------------------------------------ personal: http://www.cameronkaiser.com/ --
Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com
-- There's always free cheddar in a mousetrap, baby. -- Tom Waits -------------
> From:?Earl Baugh <earl at baugh.org>
> Date:?Thu, 28 Jul 2011 15:26:29 -0400
> Anybody know where I might be able to find a Sun 501-1134 or 501-1209 3/110
> Motherboard?
>
> Thanks.
>
> Earl
I have twelve of the 501-1209 boards that are untested. It looks like
one is new. What I have done for others is drop the board off at the
local PakMail store. You can call the PakMail store and pay for the
shipping with your credit card.
--
Michael Thompson
Vintage Computer Festival Midwest 6.0 / Emergency Chicagoland
Commodore Convention 2011
http://vcfmw.org / http://starbase.globalpc.net/eccc
September 24-25, 2011, Lombard, IL
WHAT: VCFMW is a free and open exposition of classic computing
hardware, software and memorabilia. ECCC is the world's top September
destination for Commodore enjoyment. Two great shows, one great
non-price!
WHEN: 8AM Saturday, September 24, 2011 to 4PM Sunday, September 25,
2011 (display area will close 11PM Saturday to 10AM Sunday)
WHERE: Heron Point Building, next to Fairfield Inn and Suites (Marriott)
http://marriott.com/property/propertypage/CHIFS
665 West North Ave
Lombard, Illinois 60148 USA
1-630-629-1500
Mention "Fall Commodore Expo" for special $69/night room rate!
# Join the VCF-MW Facebook group!
http://www.facebook.com/#!/event.php?eid=198133433540110
# Follow us on Twitter http://twitter.com/vcfmidwest
# Join us on IRC at freenode #vcfmw
# Visit for extra ECCC Facebookery.
http://www.facebook.com/event.php?eid=199033060117396
Copyright ? 1997-2011 Vintage Computer Festival http://vintage.org
Vintage Computer Festival and VCF are trademarks of VintageTech
http://www.vintagetech.com
This is a copy of late 1970s "fortune" from Vax/Vms of the time,with some additions.
I'm still trying to find my original printout of the actual filewhich I'll post when I do.
But I didn't want this lost, and some of it's amusing.
Also several of the sayings are my fault or because of me or inspired by me.Some will live forever in infamy
see: http://pastebin.com/RQz0ax0F
Again, it's not 100% original, when I do find that one, it'll get posted.Maybe some here will recognize it.
I may never live down some of the ones that are my fault :)
Dan.
Before I forget, located in Wrentham, MA, which is near the MA/RI border.
Doing more cleaning in the basement. Getting ready to recycle LOTS of
data books. Before I do, I thought I'd check with the group first.
I've already packed the Motorola, TI and National Semiconductor books.
They took about 20 feet of shelf space and the packed weight is about
160 pounds for the three Motorola boxes, 100 pounds for the two TI boxes
and about 80 pounds for the National Semi boxes.
Still on the shelves are another 36 feet of books. Some examples of the
larger collections are Analogic, 3 feet of Intel, AMD, Fairchild, RCA,
Signetics (3 feet) and many, many others.
A few books go to the early 70's, even perhaps late 60's, but most are
in the 80's.
I have taken pics of the packed books and I can take pics of the
remaining shelves, if there is any interest.
I'd really like to get rid of them all at once, but I'm willing to
entertain breaking it up, just as long as it doesn't cost me money to
ship(you pay shipping) or take too long to sort through and pick out
singles.
thanks,
Joe Heck
For all you third-party DEC accessories fans, newly uploaded to the
ChiClassicComp archives:
Engineering drawings for the Cipher Quarterback 1/4 Inch Tape Drive.
89 11x17 pages, 600dpi.
http://chiclassiccomp.org/docs/index.php?dir=%2Fcomputing/Cipher
--
jht
I will shortly be receiving some of these, apparently a mixture of rev A and
rev B. I don't know what the difference is, can anyone tell me?
Thanks
Rob
Anybody know where I might be able to find a Sun 501-1134 or 501-1209 3/110
Motherboard?
I've got one that's got flaky RAM, and while I try to find the defective
components, I'd like to find a replacement in case it's not something easily
repairable, so I can keep the system operational.
Thanks.
Earl
This guy is going to give me boxes of these old magazines.
If there are any you want, I can mail them media rate, or you can pick-up in southern California 92656.
I don't really want to pick through them looking for specific issues, though.
Byte magazine
80 Micro-C
Communications of the ACM
ACM Computing Surveys
ACM Sigart
Kilobaud Microcomputing
Computational Linguistics
Scientific American '60s
Sent from Steve's iPhone.
Hi All
I'm in Berlin until friday. I'm planning a visit to the Technical museum
today. Is there anything else classic computing wise that I should check
out?
Anyone in berlin who wants to show of their collection?
Kind Regards,
Pontus
Hi,
got 2 HX20s in carrying cases yesterday. As far as I can tell the displays
work. The Cassette Drives spool and the one machine I tested loaded a
program.
The internal batteries are dead but exchangeable to more modern rechargable
cells with little effort. I'd like to swap the second HX20 for some radio
gear (a Stornophone 6000 for 2m VHF for example would be a great deal). The
available HX20 comes to you with a carrying case, a bit of printer paper, a
Wall-Wart(original) and the cassette module on the right; german localized
keyboard. The little computer looks nice and clean but is rather untested
(it switches on at least and brings the 1 Monitor 2 Basic menu). I can throw
in a micro-cassette or two if you want.
There were some Bull marked printed boards in this lot, likely from an old
computer which are available for any interested people too. I don't have any
idea what this boards are but I think these are 60s PCB-Design. Every board
is a c (abt. 15cm sidequadratis) and has some little doughter-boards
soldered onto. I'll post pictures in the evening.
http://www.technikum29.de/de/rechnertechnik/gamma10.shtm has an Image of One
of the cards I've got too. I have 5 or 6 cards in total. Available to good
hands.
Regards,
Wolfgang
<offtopic on> With the HX20s came an old Eminent Type-80 Electronic Organ. I
found nearly nothing about this particular model but would need some
schematics or hints to repair this one. Should bring nice sounds as it is a
full tube model. Anyone a clue where I could get some more information
<offtopic off>
--
Wolfgang Eichberger - OE5EWL
Operating System Collector
Blog: 5ewl.blogspot.com
Homepage: www.eichberger.org