<
<I will check to see if Best Buy has anymore 16 meg simms, since $25 is goo
<price ?? Up north they almost give them away.
<
Keep this in mind...
Most systems that use 30 pin simms require either sets of two (mostly old
386s) or sets of 4. So 16mb 30 pin simms are going to net 64mb ($100)
of ram in a 486... The common and desired parts are 4mb. The average 486
will use either four or eight of them to net 16 or 32mb. The later being
more resonable for that class of cpu.
Allison
In a message dated 08/12/1999 2:15:52 AM Eastern Daylight Time,
mikeford(a)netwiz.net writes:
> It isn't that they are hard to find, they are just expensive ala $25 each.
I'm not sure what area of the world you live in, but in central florida US$25
for a 16 mb 30-pin simm is a _real_ bargain.
Glen Goodwin
0/0
On my last trip to Costco, I noted that their 64MB dimm's were $40. How
does that compare with where you are?
Dick
-----Original Message-----
From: Mike Ford <mikeford(a)netwiz.net>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Saturday, August 14, 1999 12:37 AM
Subject: RE: 30 pin simms
>>I will check to see if Best Buy has anymore 16 meg simms, since $25 is
good
>>price ?? Up north they almost give them away.
>
>I attended the bankruptcy auction of MGC (something like that) the big
>memory supplier to Best Buy and Costco. Two items stand out, one office had
>three large boxes of filled out rebate forms, and a fax machine had a sheet
>in it with a nice personal greeting from somone at Best Buy and query on
>the status of a RMA for a couple lots of 700 simms. Yipes, glad I don't
>have those.
>
>BTW I bet those Best Buy simms are 72 pin, not 30 pin.
>
>
Somebody on this list one told me that he was interested in
genuine DEC modems. I spotted these two at a wrecking yard
today:
DF-112AA (1200 baud, I think)
DF-03 (300 baud, I'm sure)
If these old modems are of interest, I'm sure I can pick
them up cheaply.
Respond via private e-mail.
Jeff
___________________________________________________________________
Get the Internet just the way you want it.
Free software, free e-mail, and free Internet access for a month!
Try Juno Web: http://dl.www.juno.com/dynoget/tagj.
On Aug 13, 18:38, Eric Smith wrote:
> Subject: Re: field maintenance print sets
> Jim wrote:
> > "no hex Q-bus boards" - Really? Then the PDP-8/a CPU, and RL02
> > controller (for the 8/a) boards I have here must be REAL oddballs, no?
> > (each are hex wide boards)
>
> If your PDP-8/a CPU and RL8-A are Q-bus boards, then yes, they are
> >*REAL*< oddballs. All of my 8/e and 8/a gear uses Omnibus.
Poor Jim's had so much flak for that, that I couldn't possibly comment,
except to say that, for once, I actually thought about the words before I
hit "send" :-)
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
Today I managed to sve a Modcomp Classic minicomputer from a fate worse
than death.
It is a tall (5ft) dual width cabinet, one housing the CPU the other a
mag tape drive. It was used as a dat comm concentrator.
Don't know anything about these machines. Has anyone any info?
I'll try and put up some pictures this weekend.
Regards
_---_--__-_-_----__-_----_-__-__-_-___--_-__--___-__----__--_--__-___-
Hans B Pufal Comprehensive Computer Catalogue
<mailto:hansp@digiweb.com> <http://digiweb.com/~hansp/ccc>
On Aug 12, 14:00, Chuck McManis wrote:
> PDP-11 boards come in two flavors Unibus and Q-bus the are either 2 high,
> four high, or six high. Generally only Unibus and PDP-8/a boards are 6
> high. (I don't think they ever made a Q22/CD/EF backplane.)
They did make one -- DDV11-B hex wide 9 slot. However, the E/F section
isn't bussed, only having +5/+12V/0V connections (ABCD are normal Q-Bus).
It's meant for third-party development, and there are no hex Q-bus boards.
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
I also have several quad wide Qbus cards with plastic handles. Be carefull
many even look the same at a glance. I have several Emulex UC08's (Quad
wide Qbus with 2 SCSI ports) and a UC18 (Quad wide Unibus with 2 SCSI ports)
and they look VERY similiar at a glance. Both have only plastic handles.
The Mentec M90 CPU has plastic handles and the M100 has metal rail /
ejectors.
Dan
>>
>> > The easy way to tell a quad pdp11 board from a quad pdp8 board is to
look at
>> > the top and see if it's got metal ejector handles or plastic "flip
chip" style
>> > handles. pdp11 boards have a metal spine and metal ejector handles,
pdp8
>> > boards have the plastic handles.
>>
>> This isn't the case. There are several quad height Unibus/pdp-11 cards
>> that have plastic handles! Check the field guide or ask on the list!
>
>For quad and hex cards :
>
>The general-ish rule is that boards that fill the full width of the
>standard (for them) cardcage have metal handles, those that don't have
>plastic handles.
>
>So Hex height unibus cards have metal handles. Quad height unibus cards
>have plastic handles (because they don't fill a hex height slot), but
>quad height Q-bus cards have metal handles (becuase Q-bus backplanes are
>normally quad height.
>
>PDP8 Omnimbus quad cards have plastic handles. I guess that's becuase
>they originally didn't go into guides/a cardcage so the metal ejector
>handles aren't any use.
>
>-tony
Hi,
A friend of mine has a core memory board set from a Varian computer he is
contemplating selling. He believes it is complete except for the power
supplies.
The boards read:
MEMORY KIT 01A0015-F&P S/N 000x
INTERCHANGEASBLE: YES ( ) NO (X) POS ( )
(the core has S/N 0001)
It is a total of three single boards (approx 8x12) and the core memory
boards (8x12x3) with the memory sandwiched in the middle.
Anyone trying to restore a Varian and need memory?
Let me know,
clint
>"no hex Q-bus boards" - Really? Then the PDP-8/a CPU, and RL02
>controller (for the 8/a) boards I have here must be REAL oddballs, no?
>(each are hex wide boards)
Seeing as how they're not Q-bus but Omnibus boards, they're perfectly
normal.
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
Hmm, lucky day I guess... I got a 11/780 and a 11/785 field maintenance
print set (2 different printsets) from the EE department. I'm rather
surprised that I didnt notice these several years ago.
Also, I saw what I swear must be a quad height pdp8 board. He wasnt
sure what it was, so he wouldnt let me have it yet. He thought it
might be a PDP11 board (did they make quad height PDP11 systems?).
Heres what the board says:
Excelan
Exos 204 s/n 001993
It has a 16 pin male ribbon cable connector on the top of the board,
and strange 2-part female connector in the middle of the board, sort
of like a 10 pin and a 36 pin ribbon female connectors joined together
so that there is a slight gap between them.
some intel chips on the board are dated 1982, the board itself is dated 1984.
Anyone know what this board is?
-Lawrence LeMay
Is a RT-11 Media Kit on TK-50, that was built under V5.4 using some command
which currently escapes me, bootable? I just realized that apparently V5.3
doesn't support TK50's. BLEEP!!!!
I'd just try it, but don't want to have to type in the bootstrap if it
isn't. Rather spend the time trying to figure out the best sequence of
hoops to jump through if it isn't! BEEEEEEEEEEEEP! Just when I was
starting to make some serious progress at getting my /73 put back together.
BLEEP!
On that note, I think I'd best get some sleep.
Zane
| Zane H. Healy | UNIX Systems Adminstrator |
| healyzh(a)aracnet.com (primary) | Linux Enthusiast |
| healyzh(a)holonet.net (alternate) | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| and Zane's Computer Museum. |
| http://www.aracnet.com/~healyzh/ |
In a message dated 08/11/1999 6:41:42 PM Eastern Daylight Time,
ard(a)p850ug1.demon.co.uk writes:
> I have the service manual for (one version) of the FD55GFR here, but the
> only info on the jumpers is the schematic diagram (showing one large ASIC
> for almost everything). And these jumpers have labels like D0, D1, D2,
> D3, IU, HL, etc.
Thanks -- I have since found another of the teac drives and the jumpers are
plainly marked. The first one (which I posted the inquiry about) had no
clear screening on the pcb.
Glen
0/0
This question is most likely to be answered by Megan Gentry
since I don't know of anyone else who might have the background.
In the very distant past, I used to prepare paper tape programs
in so-called LDA format from an RT-11 based system. Since
I don't and likely won't have access to a system with a paper
tape reader (let alone a paper tape punch), does anyone remember
if the program that does get loaded can also be prepared as an
SAV file by setting the appropriate directives to the MACRO
assembler and then the LINK program?
hi, saw your post. do you have or have any idea where
i can find 16 meg 30 pin simms? i need 2 of them. any
help is appreciated. thanks.
kelly
_________________________________________________________
Do You Yahoo!?
Get your free @yahoo.com address at http://mail.yahoo.com
Whilst scrounging around in my stash, i found an old, old mitsubishi mp286L
laptop, 286 model in like new condition. it boots up with a cmos error, but
will boot dos from a floppy. needless to say the hard drive wont mount. i
downloaded a generic bios setup problem and ran that, setting the hard drive
type to 11 which is what the sticker said underneath the laptop. alas, fdisk
cannot find it. tried a few debug LLF commands, but no go. any ideas at this
point? i am unable to find any mitsubishi computer info anywhere.
d
Would like the below listed items. Please let me know the total cost.
Ronald A Fraser
11 Granger Rd
Westborough, Ma 01581-1716
>
> AT&T UNIX PC / 3B1 software and documentation - Complete copy of SYSV UNIX
> version 3.51 for the 3B1/UNIXPC. Includes all manuals. Shrinkwrapped.
> $15.
>
>
> Control Data 9427H Disk Drive service manual - $5
>
>
> Coleco ADAM Logo manual - $5
>
> Radofin Aquarius - includes PSU, missing cartridge port cover - $10
> Coleco Adam - System unit, printer, keyboard. System worked when last
> used, printer non-functional, printer PSU good - $40
>
> --
> Scott Ware ware(a)interaccess.com
>
>
>
>Also, I saw what I swear must be a quad height pdp8 board. He wasnt
>sure what it was, so he wouldnt let me have it yet. He thought it
>might be a PDP11 board (did they make quad height PDP11 systems?).
>Heres what the board says:
>
> Excelan
> Exos 204 s/n 001993
>
>It has a 16 pin male ribbon cable connector on the top of the board,
>and strange 2-part female connector in the middle of the board, sort
>of like a 10 pin and a 36 pin ribbon female connectors joined together
>so that there is a slight gap between them.
>
>some intel chips on the board are dated 1982, the board itself is dated 1984.
>
>Anyone know what this board is?
It is an Excelan network board. I'm not sure off the top of my head whether
it's Q-bus or Unibus, but will do some research. It has drivers under BSD,
I believe.
The 16 pin connector goes to, I believe, an AUI network connector.
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
I know this is an old subject but, I swear, the last time it was brought
up, I downloaded the fonts. But, I can't find them now!!
Q: Where can I download the old ASR-33 TTY TTF font???
Q2: (NOT CLASSIC related) When I open up my terminal program in Winblows,
it won't give me my full font selection. Any clues on how to get the
ASR-33 fonts to work on the terminal program?
Thanks,
(Sorry about the Winblows question.)
A
----------------------------------------
Tired of Micro$oft???
Move up to a REAL OS...
######__ __ ____ __ __ _ __ #
#####/ / / / / __ | / / / / | |/ /##
####/ / / / / / / / / / / / | /###
###/ /__ / / / / / / / /_/ / / |####
##/____/ /_/ /_/ /_/ /_____/ /_/|_|####
# ######
("LINUX" for those of you
without fixed-width fonts)
----------------------------------------
Be a Slacker! http://www.slackware.com
Slackware Mailing List:
http://www.digitalslackers.net/linux/list.html
Hey guys, I just picked up a DATA ACCESS 1620 terminal. It looks like a
HUGE IBM Executive typewriter but, I know it's not. Anyone have any
information on this machine? Like how do I configure a serial port to talk
to it?
Here's some pictures:
http://mh106.infi.net/~arfonrg/collection/
----------------------------------------
Tired of Micro$oft???
Move up to a REAL OS...
######__ __ ____ __ __ _ __ #
#####/ / / / / __ | / / / / | |/ /##
####/ / / / / / / / / / / / | /###
###/ /__ / / / / / / / /_/ / / |####
##/____/ /_/ /_/ /_/ /_____/ /_/|_|####
# ######
("LINUX" for those of you
without fixed-width fonts)
----------------------------------------
Be a Slacker! http://www.slackware.com
Slackware Mailing List:
http://www.digitalslackers.net/linux/list.html
On Thursday, August 12, 1999 1:52 PM, Sellam Ismail
[SMTP:dastar@ncal.verio.com] wrote:
> On Thu, 12 Aug 1999, Arfon Gryffydd wrote:
>
> > Hey guys, I just picked up a DATA ACCESS 1620 terminal. It looks like
a
> > HUGE IBM Executive typewriter but, I know it's not. Anyone have any
> > information on this machine? Like how do I configure a serial port to
talk
> > to it?
> >
> > Here's some pictures:
> >
> > http://mh106.infi.net/~arfonrg/collection/
>
Cool,
Got one at home that looks just like it.... I've used it as a dumb terminal
so I know mine works. If you don't find any better info, let me know and
I'll open it up to see how it's wired.
See Ya, Steve Robertson - <steverob(a)hotoffice.com>
Hi,
I e-mailed three people regarding their checks for what I'm supposed to
ship them, but haven't gotten any replies or checks. I wasn't subscribed
to the list at the time, perhaps you replied to the list? At any rate,
e-mail me personally about this.
--Max Eskin (max82(a)surfree.com)
Did anyone else see the Miller Beer commercial with Norm MacDonald (of
Saturday Night Live fame) and Marc Andreesen (of Netscape fame)? More
proof that "Nerds have Arrived". :)
Sellam Alternate e-mail: dastar(a)siconic.com
------------------------------------------------------------------------------
Don't rub the lamp if you don't want the genie to come out.
Coming this October 2-3: Vintage Computer Festival 3.0!
See http://www.vintage.org/vcf for details!
[Last web site update: 05/25/99]
Does anyone have a spare IBM 3363 optical controller card for a MCA bus? I
recently sent one to someone, and it got damaged in transit, so I'm trying
to find one to replace it.
ThAnX,
///--->>>
-Jason Willgruber
(roblwill(a)usaor.net)
ICQ#: 1730318
<http://members.tripod.com/general_1>
PS>> was there ever a such thing as a double sided 3363 optical disk?
Here's a short tidbit I found in today's paper:
Talk about good rebounders--Mick Jagger's ex, Jery Hall, appears to have
taken up with one of the world's richest men, Paul Allen, who with Bill
Gates founded Microsoft. Britain's Daily Telegraph says the model, 43,
is vacationing on one of Allen's yachts in the south of France. Allen,
45, is way richer than the Rollling Stone--$22 billin to a few hundred
million--plus, like Jagger, has a liking for rock, playing guitar in his
own band, the Threads.
Geek *IS* chic!
Sellam Alternate e-mail: dastar(a)siconic.com
------------------------------------------------------------------------------
Don't rub the lamp if you don't want the genie to come out.
Coming this October 2-3: Vintage Computer Festival 3.0!
See http://www.vintage.org/vcf for details!
[Last web site update: 05/25/99]
>I got my Hardware problems solved, and as a result I've gotten RT-11
>installed on the Hard Drive I wanted to. Which brings up the question,
>is there any harm in not using all the space on a Hard Drive when you
>have it partitioned with RT-11? I don't care that I can't use the space.
Normally there is absolutely no problem in not using all of the disk.
RT and the DU handlers will only care about what you tell them about
(via PORT,UNIT,PART). The only thing you might have to worry about is
a program which uses the SPFUN which allows total access to the disk
(which is not something which you will find in any of the standard RT
utilities). If you only run distributed software or your own code,
there will be no problem (modulo any bugs that might be lurking).
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
Finally the weather was agreeable, and I was able to have the PDP-11/44
running out in the garage without getting it to hot out there tonite. So I
got my Hardware problems solved, and as a result I've gotten RT-11
installed on the Hard Drive I wanted to. Which brings up the question, is
there any harm in not using all the space on a Hard Drive when you have it
partitioned with RT-11? I don't care that I can't use the space.
Zane
| Zane H. Healy | UNIX Systems Adminstrator |
| healyzh(a)aracnet.com (primary) | Linux Enthusiast |
| healyzh(a)holonet.net (alternate) | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| and Zane's Computer Museum. |
| http://www.aracnet.com/~healyzh/ |
With all these discussions about disk heads is there anyone that is
interested in some RK05 heads? I am bidding on a bunch of DEC equipment
tomorrow by noon EST and there are the following that may be in interest to
those that are restoring RK05's etc.
-G938 - G 5 RK05J HEAD POSITION SERVO,DOUBLE X 8.5
-H743 -AA G 1 PWR SUPPLY, H737 REPACKAGE FOR RK05 PLUS
BATTERY,1
30-10863-01 G 10 HEAD,DISC RECORDING,RK05,''B''UP
30-10863-02 G 6 HEAD,DISC RECORDING,RK05,''B''DOWN
30-17108-00 G 2 DISK,PACK RM05CE ALIGNMENT
9883-51 CONTROL DATA
SYSTEMS IN
These are all by line item and quantity shown. If you are interested let me
know off list by 11:30 tomorrow (8/12) as I have to have the bid in by noon.
I will just add it to my current bid. (the entire list is 76 pages)
Dan
-----Original Message-----
From: Tony Duell <ard(a)p850ug1.demon.co.uk>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Wednesday, August 11, 1999 6:47 PM
Subject: Re: Disk flying height
> I watched a support guy clean an RK05 head off with a pocket knife.
> True story.
Wow!. I am impressed (very). Although I often thought some of the stuff
in the RK05 service manual was a little OTT. Those drives _are_ pretty
robust.
(The HP drive that we're discussing here uses similar technology to the
RK05 and will have much the same flying height, etc. So I sould guess
that drive will be similarly robust).
> RK's fly so high they actually ran a year in a machine where the tech
> left the filter caps on.
I assume you mean the dust caps over the ends of the absolute filter and
not the filter capacitors in the PSU. You mean that drive had no airflow
at all? Again, Wow!
>
> As far as flying height, RK05's are the SR71 or U2 of the disk heads.
:-).
RK05s (and similar drives) are good to learn on, because it's difficult
to get a fatal headcrash. I've seen it happen once, or rather I got to
change the heads after it had happened. That head had visible scoring
across the pad. I suppose it might have cleaned up, but I had new heads
in stock anyway...
But most of the time if you stick in a damaged platter or have other
problems, you get the 'ting, ting, ting' noise long before the head is
ruined.
-tony
Moving day is quickly approaching, and I need to trim my collection down
quite a bit. I'll be going through the majority of the hardware this
weekend and posting a more complete list of available items then. Until
then, I have the following items (some of which I'm sure I'll eventually
kick myself for getting rid of) available.
To keep things simple, I've included enough to cover shipping costs in the
continental US in these prices. Feel free to make other offers if these
prices seem out of line - I'm really only looking to recoup some of the
cost of packing and shipping things out during a period when free time is
at a premium.
AT&T UNIX PC / 3B1 software and documentation - Complete copy of SYSV UNIX
version 3.51 for the 3B1/UNIXPC. Includes all manuals. Shrinkwrapped.
$15.
Apple III "BPI General Accounting" and "BPI Accounts Receivable". Boxed,
with docs. Requires ProFile. $20 for both.
IBM OS/2 2.1 "For Windows". Shrinkwrapped. Several copies - $10/each.
Control Data 9427H Disk Drive service manual - $5
IBM XENIX documentation - Assembler reference, text formatting guide,
software command reference, library function and C reference - $15 for
all.
AT&T PC6300 User's Guide - $5
Coleco ADAM Logo manual - $5
Radofin Aquarius - includes PSU, missing cartridge port cover - $10
TRS-80 CoCo2 - OK physical condition, untested - $10
Coleco Adam - System unit, printer, keyboard. System worked when last
used, printer non-functional, printer PSU good - $40
Magnavox RGB display 80 - Analog RGB (Amiga), digital RGB(CGA), and NTSC
composite inputs. No cover for controls - $40
Mono composite monitors - Apple, others - $15
Nortel ISDN terminal adaptors - 64k sync / 57.6k async operation on one B
channel. Requires external NT1. 2 units, one psu, one manual - $20
Apple Disk II drives - untested - 2 for $15
3 Magnavox Odyssey pong systems - red, yellow, and white (200,300,400?).
One AC adaptor, one RF connector. $40 for all
Magnavox Odyssey2 - Boxed, with joysticks. I think I have the wall wart
and an "Intro to Programming" cartridge for this one. $20
Odyssey2 - 2 Untested Odyssey2 games in one box. no PSU - $20
Laser 128 - Dirty, missing keys, untested. $7
--
Scott Ware ware(a)interaccess.com
Heads up central Michiganites.... respond directly to Donald..
;)
Mike: dogas(a)leading.net
-----Original Message-----
From: DonaldF F Christensen <dfcsenior(a)JUNO.COM>
To: HEATH(a)LISTSERV.TEMPE.GOV <HEATH(a)LISTSERV.TEMPE.GOV>
Date: Wednesday, August 11, 1999 4:50 PM
Subject: FS vintage computer
>Vintage computer collectors: I have the following Heath/Zenith components
>for sale
>or trade: One Heath/Zenith H-89 All-in-one Computer/monitor/keyboard;
>one Heath/
>Zenith H-25 Dot Matrix printer-big one; One Heath/Zenith H-37 Dual Floppy
>Disk Drive;
>One lot of instruction books, data, etc, etc. The computer components are
>in very good condition. If anyone is interested, please let me know. I
>will not ship-for pickup only
>in central Michigan. Thanks. 73 Don W8WOJ
>
>Sponsored by the City of Tempe
>
>Listserver Submissions: heath(a)listserv.tempe.gov
>Listserver Subscription: listserv(a)listserv.tempe.gov - "subscribe heath
'name' 'call'"
>Listserver Unsubscribe: listserv(a)listserv.tempe.gov - -"signoff heath"
>
Please contact DonaldF F Christensen <dfcsenior(a)JUNO.COM> if interested.
Do not reply to me. Good luck.
>X-Mailer: Juno 1.49
>Date: Wed, 11 Aug 1999 16:18:22 -0400
>Reply-To: DonaldF F Christensen <dfcsenior(a)JUNO.COM>
>Sender: Heathkit Owners and Collectors List <HEATH(a)LISTSERV.TEMPE.GOV>
>From: DonaldF F Christensen <dfcsenior(a)JUNO.COM>
>Subject: FS vintage computer
>To: HEATH(a)LISTSERV.TEMPE.GOV
>
>Vintage computer collectors: I have the following Heath/Zenith components
>for sale
>or trade: One Heath/Zenith H-89 All-in-one Computer/monitor/keyboard;
>one Heath/
>Zenith H-25 Dot Matrix printer-big one; One Heath/Zenith H-37 Dual Floppy
>Disk Drive;
>One lot of instruction books, data, etc, etc. The computer components are
>in very good condition. If anyone is interested, please let me know. I
>will not ship-for pickup only
>in central Michigan. Thanks. 73 Don W8WOJ
>
>Sponsored by the City of Tempe
>
>Listserver Submissions: heath(a)listserv.tempe.gov
>Listserver Subscription: listserv(a)listserv.tempe.gov - "subscribe heath
>'name' 'call'"
>Listserver Unsubscribe: listserv(a)listserv.tempe.gov - -"signoff heath"
Christian Fandt, Electronic/Electrical Historian
Jamestown, NY USA cfandt(a)netsync.net
Member of Antique Wireless Association
URL: http://www.antiquewireless.org/
Hi Tony,
>....(read : most microcomputers...) get stuck behind stuff I'm
>working on. Which means to get to the Nimbus I'll have to climb
>over a couple of VAXen, a Zilog S8000, a Sun, etc...
Heh, heh, I know the problem well.... ;-)
>....I think you can learn as much from a Beeb or an Apple ][ as
>from a PC. If not more.
Personally I'd say more.
A few years ago I decided to get a formal qualification in electronics (I've
been a hobbyist since '77). As part of the course we had to learn the proper
techniques for fault finding digital systems....we were taught these using
microProfessors and similar 6502 based boards (I forget their name....hex
keypad, couple of VIAs, LED readout etc).
"Primitive" systems like these (and Apples and Beebs) I think are far better
animals on which to learn the inner workings of computers, far too much is
hidden away inside the VLSIs our PCs are made from these days. :-(
TTFN - Pete.
--
Hardware & Software Engineer. Sound Engineer.
Collector of Arcade Machines, Games Consoles & Obsolete Computers (esp DEC)
peter.pachla(a)virgin.net |
peter.pachla(a)vectrex.freeserve.co.uk |
peter.pachla(a)wintermute.free-online.co.uk | www.wintermute.free-online.co.uk
--
Hello all:
Does anyone have jumper information on these two old drives? Both are 5.25"
drives pulled from old PCs. The jumpers are not marked (except for jp1, jp2,
etc.). I need to configure them for use with a TS2068 fdd i/f.
The drives are:
Epson SD-621L
Teac FD55-GFR
If you can point me in the right direction I'd appreciate it.
Glen Goodwin
0/0
You'd be better advised to use a really fine diamond lapping paste as you
might obtain from an industrial supplier. There are fine enough pastes
available that one can lap to a .000003" finish . . . essential if you're
making Jo-blocks, but probably overkill for your task. If you contact an
outfit like Manhattan Supply Corp, which has branches throughout the U.S,
you'll find something suitable and probably in a quantity you can afford.
If you're worried about the head flatness, I'd not try this trick until
you're more sure of yourself, though.
-----Original Message-----
From: Tony Duell <ard(a)p850ug1.demon.co.uk>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Tuesday, August 10, 1999 3:24 PM
Subject: Re: 14" hard drive refurb....
>>
>> Ok, I know this sounds crazy....
>>
>> One person told me that if the heads were heavily oxidized, that they
could
>> be cleaned with a soft toothbrush and TOOTHPASTE (followed by a rinsing
in
>> 91% alcohol)???????
>>
>> Anyone know if this is crazy or advisable?
>
>Toothpaste is a fairly mild abrasive that does sometimes help in
>cleaning/polishing things. I've used it on the plastic covers from panel
>meters, for example.
>
>But I'd not use it on a disk head. My feeling is that you will damage the
>surface. I doubt if you'd ever get it flat enough to work.
>
>No real evidence, though, but I sure wouldn't try it.
>
>-tony
>
Well, I got enough of the oxide off to see there is definitely a few scores
in the ceramic pad. Since I'm a total neophyte at this, I decided to get
some professional help (related to the disc heads <grin>). I located an
outfit with the following prices:
1) New heads - $135.00 each
2) Replace the pads, check the spring, and test fly - $35.00 each
3) Clean and recontour the head - $20.00 each.
Just to be safe, I'm probably going to go with option two, and at least I'll
be sure the heads I'm putting in aren't going to destroy the platter. Does
anyone know of an outfit that gives better pricing here in the states?
Jay West
G'day,
In the past, I've asked for information on the Weitek [Graphic] Array
Processor. Well, I've located some documentation for it and accompanying
software: WAFT, Weitek Assembler with Flexible Translation, APSIM, Array
Processor SIMulator, and QUAKE :-).
The board has one integer processor (an equivalent of 4 Am2901's + Am2910)
and one floating point processor (2 WTL1066 register files, 1 WTL1032 ALU
and 1 WTL1033 multiplier). Manual claims that performance of this hardware
reaches 8 MFLOPS. Clock frequency is 4 MHz.
I've not found any reference to this product (by name) on the Net. From
comments in source code, it looks like Thomas J. Riordan, Craig Hansen,
and Michael Ekberg were involved in the design of this product.
Does anyone remember this product?
I'll have to verify that hardware is working, but there is a good chance
that it is OK.
--
Sergey Svishchev -- svs{at}ropnet{dot}ru
G'day,
I am looking for the following manuals (in dead-tree, microfilm or -fiche,
photo- or xerocopied, or scanned form).
For better support of VAX 8200 series in NetBSD/vax:
*** Digital Equipment Corporation
Paul Wade "The VAXBI Bus -- A Randomly Configurable Design",
Digital Technical Journal, February 1987, pp.81--87
EB-27271-46 VAXBI Options Handbook
EB-28190-46 VAXBI Technical Summary
EK-DEBNT-TM DEBNT Ethernet Tape Controller Technical Manual
EK-DEBNX-TM DEBNA/DEBNT Technical Manual
??-?????-?? BVP Architecture Manual
EK-DMB32-TD DMB32 Technical Description
EK-DWBUA-TM DWBUA UNIBUS ADAPTER TECH.
EK-KA820-TM KA820 Processor Technical Manual
EK-MS820-TM MOS Memory Technical Manual
EK-KDB50-SV KDB50 Disk Controller Service Manual
EK-ORA60-SV RA60 Disk Drive Service Manual
EK-ORA81-SV RA81 Disk Drive Service Manual
EK-ORA82-SV RA82 Disk Drive Service Manual
AQ-FJ86L-ME VAXstation 8000 hardware files
EK-VS800-IG VAXstation 8000 Installation Guide
EK-VS800-OM VAXstation 8000 Owners Manual
EK-VS800-SG VAXstation 8000 Service Guide
EK-VS800-SM VAXstation 8000 System Manual
EK-VS8PL-TM 8-PLANE GRAPHICS COPROC
(If I guessed right, this describes VSB70 --
Evans & Sutherland graphics hardware in VS8000)
EK-KA800-TM KA800/MS800 Technical Manual
EK-KFBTA-TM KFBTA Disk Controller Technical Manual
Most part numbers were found in Digital Assisted Services catalog; if you
think something that's not in the above list might be useful too, let me
know.
For (nonexistant yet, and possibly going nowhere) NetBSD/tek4300 port:
*** Tektronix Inc.
Everything about these VME boards: CE ( = 4301 Application processor), PP2
(Picture Processor 2), ZB (Z-buffer), FB8M (8-plane frame buffer), CP.
This board set forms a Tektronix 4336 workstation.
I'm also looking for spare parts, option boards (esp. memory expansion for
4301!), and other machines of the 4300 series.
*** Weitek
Everything about Weitek 1167 Floating Point Accelerator. It is an optional
item for Tektronix 4301.
--
Sergey Svishchev -- svs{at}ropnet{dot}ru
G'day,
I fired up a VAXstation 8000 that was sitting in a corner collecting dust.
After some fiddling, I managed to get it to work -- at least partly. It
would not even show the chevron prompt until I pulled the KK810 cable
(KK810 is "Control Assembly") out of GIF (Goes In First) BI bus terminator.
Even then, no luck: (DU50 is a RD54 that is hung off KFBTA)
Hand transcribed logs:
Plain boot:
>>> B DU50
01000000
%BOOT-F-Failed to allocate PFN bitmap
Boot with memory test disabled:
>>> B/R5:84 DU50
01000000
%BOOT-F-Unexpected exception
PC=000003E1
>>> B/R5:2004 DU50
01000000
%BOOT-W-Ten percent or more of main memory is bad
%BOOT-F-Insufficient memory for CI
Boot with boot breakpoint set:
>>> B/R5:20 DU50
1 BRK AT 00003E8C
00003E8C/7E5BD001
Something is obviously wrong, but without docs I am going nowhere...
Comments? Advice?
--
Sergey Svishchev -- svs{at}ropnet{dot}ru
I, like other DECUS members, just got a letter from Compaq
assuring me that VAX (and OpenVMS) support will continue for
another ten years - although the VAX family will be retired.
Now wouldn't that letter have been much more exciting if they'd
decided to open-source all the other retired DEC products?
- John
>On Mon, 9 Aug 1999 21:33:07 -0600 mark acierno
><macierno(a)cvm.msstate.edu> wrote:
>> questions
>...
>> 2)Does anyone have any software for it? I had a whole bunch (but that was
>> 1981)!I can still remember a company called AARDVARK SOFTWARE sold a
bunch
>> of great games........
I've got Sargon II (Hayden Software I think) on cassette for the 1p floating
around here somewhere. Bill, is this one that you have and have slated for
wav conversion and posting?
;)
- Mike: dogas(a)leading.net
>OK, as long as I don't run into any unforseen trouble that keeps me from
>having time, I plan on installing RT-11 on a large disk in the next few
>days. However, I won't be using the nice WQESD ESDI controller that I've
>got that makes partitioning disks easy. So I want to make sure I
>understand how partitioning works under RT-11.
Doesn't it do the partitioning in hardware anyway? Of course that is
easy... they become separate units...
>If I'm reading the manuals correctly I would first boot off of my RL02
>pack and do the following
>
>.INIT/BADBLOCKS DU0:
>
>then
>
>.SQUEEZE/OUTPUT=DU0: DL1:
>.COPY/BOOT DL1:RT11FB.SYS DU0:
That should be
.SQUEEZE/OUTPUT:DU0: DL1:
.COPY/BOOT DU0:RT11FB.SYS DU0:
>and then boot the system from DU0: So far that's pretty straight
>forward, and except for using SQUEEZE to copy the distribution, pretty
>much the way I got it from RX50 to RL02.
Squeeze is a faster way of doing the copy when the output volume is
a freshly initialized volume. You could do it with a COPY/SYS...
>Now then since I'll want to use more than just the first 30Mb of the Hard
>Drive, I'll need to set up partitions. Do I do this prior to
>initializing DU0: or after booting from a freshly installed DU0:?
There are a number of factors involved... you need to ensure that the
partitioning in the DU driver you are using to write to the DU device
is the same as the DU driver which gets written *to* that device. If
not, you could write the data just fine, but not be able to find it
easily.
An example of this might be having a specially-partitioned XM version of
the DU driver. You use it to copy a system to some other partition,
but you set it to boot RT11FB (which uses a different copy of DU -- the
one built for SB/FB) and then boot the volume... when it gets up far
enough that it tries to use the FB version of the handler, it references
an entirely different partition.
>I realize the command to do the partitioning is:
>
>.SET DU0 UNIT=0,PORT=0,PART=0
>.SET DU1 UNIT=0,PORT=0,PART=1
>.SET DU2 UNIT=0,PORT=0,PART=2
>.SET DU3 UNIT=0,PORT=0,PART=3
Personally, I like to think more hierarchically, doing the PORT, then
UNIT, then PARTition. But yes, this could work. I also tend to keep
the DU0-DU3 devices mapped to partition zero of the corresponding
physical units:
.SET DU0 PORT=0,UNIT=0,PART=0
.SET DU1 PORT=0,UNIT=1,PART=0
.SET DU2 PORT=0,UNIT=2,PART=0
.SET DU3 PORT=0,UNIT=3,PART=0
and then assign the non-zero partitions to DU4-DU7 (this is with a handler
without the extended unit support, of course).
>Also I assume that a partition has to be 65,535 blocks, but does the last
>one have to be that, or will it simply be however much space is left?
It is automatic. All partitions other than the final one will be
65536 (not 65535) blocks in size. The last one will be whatever is
leftover (total_size % 65536). BTW - although the partitions are
65536 blocks in size, the last block is reserved, so the effective
size is 65535.
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
No, I only soaked them for about an hour. They quickly reached a point where
no more oxide will come off with a foam-type "q-tip". Still, there is so
much oxide left that won't come off... I'm sending the heads in for work
today.
Thanks for the tip!
Jay West
-----Original Message-----
From: John Lawson <jpl15(a)netcom.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Tuesday, August 10, 1999 11:58 PM
Subject: Re: 14" hard drive refurb....
>
>
> JAY!!! I **hope** you read this before tomorrow! Please remove
>the heads from the alcohol right now... it is unpredictable what
>long-term immersion in 91% isopropanol will do to a head assembly..
>but I doubt anything good.
>
> It is possible to soften and dissolve the coil binders, and
>possibly to delaminate the magnetic core... and at the least to
>impregnate the coils with alcohol, which will then be released as a
>vapor or liquid contaminant over time... maybe carrying goo from the
>stack.....
>
> I hope that nothing evil comes of this... but overnight soaking
>in **anything** is >not< the way to clean up magnetic heads.
>
>
> Hoping for the best..
>
>
>John
>
>
>
Hi,
The IMSB407 Ethernet TRAM (Size 8, T222 + 64K SRAM + 7990 LANCE +
thinwire transceiver), according to inmos bulletin 324 at
http://www.hensa.ac.uk/parallel/vendors/inmos/archive-server/bulletin/b324.…
requires the s507a support package. I have the s507b support package
and apparently it is for the IMSB300. Does anyone have the support
package for the IMSB407?? Or can I use the s507b?? Thanks
Ram
--
,,,,
/'^'\
( o o )
-oOOO--(_)--OOOo-------------------------------------
| Ram Meenakshisundaram
| Senior Software Engineer
| OpenLink Financial Inc
| .oooO Phone: (516) 227-6600 x267
| ( ) Oooo. Email: rmeenaks(a)olf.com
---\ (----( )--------------------------------------
\_) ) /
(_/
On Sun, 8 Aug 1999 21:15:44 EDT Glenatacme(a)aol.com writes:
>Sellam Ismail replied:
>
>> I think its worth holding onto because its a part of the history of
>>the product. It tells a bit about the company at that point in its
>>life in terms of the packaging design and such. If the styrofoam is
making
>>a mess then perhaps it'd be best to throw that out, and then maybe fold
>>the box up and stick it away somewhere to preserve it for posterity.
>
>In general, Tony, I agree with Sam. The packaging can provide insight
>into both the packaging technology of the times and the marketing
strategy
>(some of the claims on those old boxes are outrageous, and the graphics
can
<SNIP>
Oh yeah, like the time Commodore shot itself in the foot claiming on the
outside of the box that the C64 could run CPM programs! Of course then
the FTC stepped in. . . .
Jeff
___________________________________________________________________
Get the Internet just the way you want it.
Free software, free e-mail, and free Internet access for a month!
Try Juno Web: http://dl.www.juno.com/dynoget/tagj.
Just obtained a 1p and have two questions
1) how does this differ from the C1P which I had in high school (other than
they slapped a nicer looking plastic case over the metal case)?
2)Does anyone have any software for it? I had a whole bunch (but that was
1981)!I can still remember a company called AARDVARK SOFTWARE sold a bunch
of great games........
mark
-------
ICQ 40439199
http://www2.msstate.edu/~mja2
> 1) The Controler <-> drive cable, can I crimp a three
>appropriately sexed IDC connectors on to flat ribbon cables for hookup?
You should be able to...
> 2) How to hook up the drive control panel? The 3900 has a
>connector that is wired to the bulkhead and the drive, it also holds a
>"unit number" plug. The BA123 has its normal DRIVE 0 WP/Ready control
>with a different sized connector. Can I adapt it to the RF7x series
>drive? How?
I'm sure it could be done electrically... but I'm running several
DSSI drives on a KFQSA (in a VS3600) with no unit select anything.
> 3) DSSI terminators connect to the scsi like DSSI connector, if I
>put a SCSI 2 connector on my cable can I use an active SCSI 2 terminator
>instead?
Do NOT, I repeat, *DO NOT* use a SCSI terminator on a DSSI cable.
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
Sorry Allison, I meant to say the head was heavily coated with oxide from
the disk platter, not oxidized itself! :)
I just removed the two lower heads, and neither comes clean with 91%
alcohol. Now I'm just soaking the heads in a glass in the alcohol, and
waiting overnight to see if they'll then come clean. If that fails, I was
wondering about a toothbrush with just 91% alcohol.
Ok, this is the challenge. NetBSD runs flawlessly on my KFQSA in the 3900
but hangs using the SIGMA RQ11D in my uVax 3. Since I have an "extra" KFQSA
(now knowing how to configure it!) I could put it into my BA123 but that
appears to be a challenge when no documentation is present :-)
Some questions:
1) The Controler <-> drive cable, can I crimp a three appropriately sexed
IDC connectors on to flat ribbon cables for hookup?
2) How to hook up the drive control panel? The 3900 has a connector that
is wired to the bulkhead and the drive, it also holds a "unit number" plug.
The BA123 has its normal DRIVE 0 WP/Ready control with a different sized
connector. Can I adapt it to the RF7x series drive? How?
3) DSSI terminators connect to the scsi like DSSI connector, if I put a
SCSI 2 connector on my cable can I use an active SCSI 2 terminator instead?
As always, thanks!
--Chuck
Guys:
If there is anyone out there who is running RT-11
on an 11/03, could you please reply to me via private
e-mail?
Thanks!
Jeff
We now return you to our regularly scheduled programme . . . .
___________________________________________________________________
Get the Internet just the way you want it.
Free software, free e-mail, and free Internet access for a month!
Try Juno Web: http://dl.www.juno.com/dynoget/tagj.
Another classic computer maker "bites" the dust.
See: http://www.news.com/News/Item/0,4,40250,00.html
Which is a news.com story about how EMC (makers of storage products mostly)
will buy Data General for 1.1 billion in stock. This was the last of the
great mini-computer companies that had been left standing after DEC was
bought by Compaq.
I'm looking for other examples, but I believe this leaves IBM (System 360)
and Sun (SPARC) as the last two companies who designed their own computer
architecture still standing under their own name. (I don't count Xerox
since they don't sell their D-series machines any more).
Companies known to have gone away:
DEC
Data General
Tandem
Prime
--Chuck
<alcohol. Now I'm just soaking the heads in a glass in the alcohol, and
<waiting overnight to see if they'll then come clean. If that fails, I was
<wondering about a toothbrush with just 91% alcohol.
NO! Try a Qtip with some acetone (nail polish remover) and then clean that
off with isopropanal.
There are plenty of more aggresive cleaners before resorting to abrasives.
When my RL02 crashed (bad pack) I had to use MEK on the heads to get them
clean. Isopropanal or ethanol are about the most mild solvents and someof
the media binders need some push.
Allison
In a message dated 8/10/99 3:30:46 PM EST, ard(a)p850ug1.demon.co.uk writes:
<< We've had many discussions here about whether it is better to restore a
machine (and thus instal unoriginal parts) or whether it is better to
keep everything original and live with it not working. For me, there is
no contest here - I like to use my old machines, and thus I try to get
them working. Fixing them is half the fun anyway :-). >>
I agree! I like stuff I can use. The only non-working stuff I keep (besides
packaging material ;>) is that which has spare parts for my working machines,
or machines I hope to acquire in the future.
<< Ooops... I thought almost everyone here was short of space... >>
Well, some of us collect the "small" stuff & we can get a lot of it on a five
foot shelf ;>) I'm also blessed with a wife who understands my hobby (if I'm
tinkering with this crap she knows where I am . . .)
<< People here have made some good points as to why I should keep the
original box, so for the moment at least, it stays. >>
Right on! The dumpster loses again!
Regards,
Glen Goodwin
0/0
Ok, I know this sounds crazy....
One person told me that if the heads were heavily oxidized, that they could
be cleaned with a soft toothbrush and TOOTHPASTE (followed by a rinsing in
91% alcohol)???????
Anyone know if this is crazy or advisable?
TIA
Jay West
A company in Richardson, Texas wants to get rid of some fairly classic
stuff.
I've personally seen all this stuff, but it was almost two months ago and
I've forgotten what a lot of it is. However, if you have a question about
anything, please e-mail me and I'll try to get it answered for you.
The price for this stuff is open ended. My guess is that in most cases
they will want some token amount, or may even be happy for you to come and
take it away. I'll act as the go-between so any offers you want to make
should be mailed to me and I'll forward them on for you. Please include
an e-mail address and a telephone number.
Here is the list:
Texas Instruments 1500 (1 bay)
Archive tape drive
8-port TI hub
Texas Instruments 1500 (8 bay)
Archive tape drive
8-port TI hub
Texas Instruments 300 Business System Terminal
Texas Instruments Business System 300 (blows fuse after a minute)
IBM PC/XT w/System/36 interface board
IBM PC monochrome display
IBM System/36 Desktop (Type 5364)
ADP PC/AT (no P/S)
ADP MAX 8500 (dead)
Archive tape drive
(2) 4-port networking hubs
Motorola SYS3304NY151
Archive tape drive
Texas Instruments System 1000
Archive 150MB tape drive
TI System V Xemix 386 by SCO
Manuals
Texas Instruments System 1000
(3) NEC N4810II modem
(2) Racal-Vadic VA212 audto-dial modem, AC adapter, cables, manuals
DIS System 36 (bad hard drive)
IBM monitor
CITOH 8510 printer
Texas Instruments Omni 800 printer
Sperry IT (PC/AT with SCO Xenix)
Unisys color monitor
Priority will go to those who can offer local pickup, since the company
doesn't want to have to deal with having to ship stuff if they can avoid
it (in fact, I don't know that they even want to ship anything, but I'll
find out).
The company wants to ditch this stuff soon so act fast or else it might be
scrapped.
Sellam Alternate e-mail: dastar(a)siconic.com
------------------------------------------------------------------------------
Don't rub the lamp if you don't want the genie to come out.
Coming this October 2-3: Vintage Computer Festival 3.0!
See http://www.vintage.org/vcf for details!
[Last web site update: 05/25/99]
My 1984 catalog indicates that it processes video signals, both analogue and
digital. It appears, from the cables offered that the analog is a 75 ohm BNC
and the digital is a 15 pin, prob. D sub Centronics type. Nothing indicates
that it could be used with the 4051, also in this catalog.
It's recording technique processes raster scan video with a fiber optic CRT.
It does use both kinds of Tek dry silver paper, switch selectable. The High
performance paper 7772 is capable of 125 lines per inch(LPI). The regular
7770 paper does 100 LPI.
There is a RGB Mixer available for color to mono conversion. I may have a new
one in a box if you get the 4634. The printer, new, comes with a roll of
paper, 75 ohm terminator and manual. If it is new in the box I sure would
recommend getting it. Few of these exist because they are valuable as scrap
metal.
In 1984 Tek wanted $7900 for this printer. A roll of paper cost $215, a case
$750.
If your Tek 4051 has a 15 pin video out in the back it might hook up to this
printer. The connector on the printer is not a Tek GPIB port.
Paxton
I just secured a block of 20 rooms at the Biltmore Hotel and Suites in
Santa Clara for VCF 3.0. This is the same hotel we used last year, and
they were very good to us.
The room rate is $69 or $89 a night depending on how much you want to
spend. I stayed a night in each room (the regular rooms and the tower
suites) last year and both were comfortable and clean (of course the tower
suites were much nicer :) $69 a night for a room in Santa Clara is a
prtty damn good deal actually.
All the information you would need to reserve a room can be found at:
http://www.vintage.org/vcf/hotel.htm
Act soon. The deadline to register at the VCF rate is September 3. Be
sure to ask for the Vintage Computer Festival room rate. If you have
trouble you can probably ask for Sabina, whom I negotiated with. Please
e-mail me as well if you do.
Sellam Alternate e-mail: dastar(a)siconic.com
------------------------------------------------------------------------------
Don't rub the lamp if you don't want the genie to come out.
Coming this October 2-3: Vintage Computer Festival 3.0!
See http://www.vintage.org/vcf for details!
[Last web site update: 05/25/99]
<> One person told me that if the heads were heavily oxidized, that they cou
<> be cleaned with a soft toothbrush and TOOTHPASTE (followed by a rinsing i
<> 91% alcohol)???????
Don't. has that person ever dealt with ceramic heads?
Clean it with 91% ISOPROPANAL (alcohol). inspect first during and after.
Most heads are ceramic and oxidized is not likely.
Allison
Various people said:
>> > The Commodore 64 _could_ run CP/M programs...provided one had the
>> > optional Z80 cartridge...though I never tried myself. :-) The 128 was the
>> > first Commodore machine to actually boot CP/M disks with a 1571 drive,
if I
>> > remember correctly.
>>
>> Well so _could_ the PDP-8 if someone built the necessary hardware or wrote
>> a simulator for it :)
>
>And so can a Macintosh if you run a terminal emulator and connect the
>serial port to a Northstar Horizon. :-)
I point is that Commodore had the foresight to put a "DMA" line
on the Expansion Port so that an external device could tri-state
the address lines on the 6510, effectively removing the 6510 from
the memory map. Which makes it very easy to run the C64 with multiple
processors or just a different processor.
The C64 CP/M cartridge was set-up so that you could have 6502 code
embedded in your Z80 code. You just need to set a certain register
every time you wanted to switch processors.
That coupled with the fact that you could swap out all the ROM and
all of the I/O leaving a continue 64K ram space, makes the C64 a
hardware hacker's dream.
Just my two cents.
--Doug
===================================================
Doug Coward dcoward(a)pressstart.com (work)
Sr Software Engineer mranalog(a)home.com (home)
Press Start Inc. http://www.pressstart.com
Sunnyvale,CA
Visit the new Analog Computer Museum and History Center
at http://www.best.com/~dcoward/analog
===================================================
I finally got around to putting a new lower platter into my 7900A. Kinda
hard to do from underneath, but it's done.
Now I'm getting ready to take the lower heads out for thorough cleaning.
Before I do, I wanted to ask some advice... When I powered the drive up
before, I could hear minor HDI (very slight scraping). Upon inspection it
was obviously the lower platter that was missing a track of oxide. The heads
had oxide on them but they didn't look all that bad to me. Most of the folks
on the list (and a few people I talked to voice) said just replace the lower
platter and clean the bottom heads and all would probably be well. Two
questions:
1) Everyone said because the lower platter is fixed, there's no concern for
alignment, precision, feeler guages, etc. Just unbolt the heads, clean 'em,
and bolt 'em back on. No special checks and so forth. Before I unbolt them I
wanted to double check and make sure I wasn't about to do anything silly.
So - just unbolt, remove, clean, rebolt, and power up?
2) I was thinking (bad sign <grin>)...if the heads contacted the platter
enough to scrape off a nice circle of oxide, won't cleaning the heads and
replacing the platter accomplish nothing? What I mean is - isn't it very
likely that whatever caused them to scrape in the first place won't be fixed
by a new lower platter and cleaned heads? What am I missing here?
Thanks in advance for the education on 14" hard discs!
Jay West
Here's an interesting company that purports to be in the business of:
"Supporting clients with older, "obsolete" computer
equipment, including, but not limited to, DEC PDP-11's,
PERQ graphic workstations, various workstations and
other machines running UNIX, DEC VAXen, and various
personal computers running CP/M, MP/M and MS-DOS."
http://www.perqlogic.com
Sellam Alternate e-mail: dastar(a)siconic.com
------------------------------------------------------------------------------
Don't rub the lamp if you don't want the genie to come out.
Coming this October 2-3: Vintage Computer Festival 3.0!
See http://www.vintage.org/vcf for details!
[Last web site update: 05/25/99]
I would be MOST interested in the HP1000 (*VERY* much so if it includes a
7900A or 7905), but would need to know what peripherals are in it. Please
let me know as soon as you can find out - shipping from CA to me isn't a
problem....
Jay West
-----Original Message-----
From: Mike Ford <mikeford(a)netwiz.net>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Tuesday, August 10, 1999 2:38 PM
Subject: SoCal Salvage, ALR, HP 1000
>One salvage place has a load of ALR (Advanced Logic Research) stuff going
>through it. Mostly all the old "stuff" that tends to accumulate in a firm,
>and then goes when it gets bought. Lots of ALR bits like big chassis, some
>triple pentium pro boards, boxes of power supplies.
>
>Later this week they tell me a complete HP 1000 is coming in, but no
>details yet.
>
>All above located in SoCal.
>
>
>
>Basically what I meant is banks of two. There's two SIMMS in a bank, with
2
>banks, totaling 4 SIMMS.
>
>If you install three 2 MB SIMMS, instead of getting a 6 MB memory reading,
>you'll get a 4 MB reading and a memory error.
>
Nope.
You'll get a memory error until you run the reference disk. If you have an
error while running the reference disk then you have the wrong type of
simms.
It's not until you get to Pentiums that you need 72pin simms in pairs.
>///--->>>
> -Jason Willgruber
> (roblwill(a)usaor.net)
> ICQ#: 1730318
><http://members.tripod.com/general_1>
>
>-----Original Message-----
>From: Olminkhof <jolminkh(a)nsw.bigpond.net.au>
>To: Discussion re-collecting of classic computers
><classiccmp(a)u.washington.edu>
>Date: Friday, August 06, 1999 2:11 AM
>Subject: Re: IBM PS/2 P70-386 SIMM needed...+ a couple other things...
>
>
>>
>>
>>Jason Wrote:
>>>I need a 2MB SIMM for an IBM PS/2 P70-386. I know they go in in sets of
>>>two's, but for some reason, I have a spare SIMM that I found. Does
anyone
>>
>>
>>I've never heard of this "sets of 2" stuff on these.
>>They use the same simms as the desktop model 70 . . ie with presence
>>detect circuitry.
>>
>>Hans
>>
>>
>
In a message dated 08/09/1999 5:07:15 PM Eastern Daylight Time,
ard(a)p850ug1.demon.co.uk writes:
> Hmmm... I didn't realise there was a lack of info on 1980's packaging
> (most manufacturers did much the same thing).
Perhaps they did. Perhaps not. Nonetheless this is a poor excuse for
trashing original packaging, unless you are forced to because of lack of
space. A piece of history is in your hands, to do with as you choose.
> > interesting, too!). Additionally, collectors will certainly pay a
premium
> > for an item which includes some or all of the original peripheral
"trash."
> That implies I collect as an investment, which I don't. I collect because
> I love old computers. I have no intention of _ever_ selling anything on.
I'm not an investment collector, and I certainly didn't mean to imply that
you are. However, when I finally croak, I hope that someone finds as much
useful enjoyment in these machines as I do. If not, I hope my survivors sell
them for top dollar, styrofoam and all. On the other hand, my wife might
just sweep them all into the bin ;>)
> You obviously don't know how little space I have here.
Of course I don't, having never seen your storage area! Which is why I
suggested that an abundance of space was required in order to keep all of the
associated "trash."
For crying out loud, Tony, lighten up! You ask for suggestions and then
ridicule the replies! Sheesh!
Glen Goodwin
0/0
Hi Hans,
>>PC/XT class machines generally have no clock hardware
>>in them as standard....
>
>This is only true if you look at the very basic unit....
But that's exactly what I was talking about, STANDARD PC/XT machines. IBM, to
the best of my knowledge, never released any form of clock card for the PC or
XT.
>....but clock-cards have been popular back than. Either as single
>function card (rather rar) or within a multi function card.
I used to have at least one clock card and several multi-function cards with
built in clocks for use in such machines.
The point is though that even though they were popular, they were generally the
exception rather than the rule....
TTFN - Pete.
--
Hardware & Software Engineer. Sound Engineer.
Collector of Arcade Machines, Games Consoles & Obsolete Computers (esp DEC)
peter.pachla(a)virgin.net |
peter.pachla(a)vectrex.freeserve.co.uk |
peter.pachla(a)wintermute.free-online.co.uk | www.wintermute.free-online.co.uk
--
Hi!
I was wondering if anyone had an old copy of MS-Works (3.0?) for DOS that
they'd be willing to email to me trade something for (I have some old Mac
and IBM programs).
I'm looking for a copy of the install disks to install in an old ZDS
SuperSport. The JVC HD recently seized in it, and I bought a new one (Alps)
through www.zdsparts.com . Luckily, I had all of my documents backed up on
disk, but unfortunately, the MS-Works that was on the Zenith was the only
copy of MS-Works I have, and it was on there when I bought the computer.
I'm currently using WordPerfect 5.0, which doesn't recognize Works format,
or have spreadsheet / database. I also really don't feel like spending the
money to buy a new version of Works to just convert the files to
WordPerfect. (Word '97 doesn't read Works 3.0 for DOS format files,
either.)
ThAnX,
///--->>>
-Jason Willgruber
(roblwill(a)usaor.net)
ICQ#: 1730318
<http://members.tripod.com/general_1>
I bought a Tek4051 while in the USAF in 1978. I developed several programs
using the 4051 for data collection and reduction.
I would like to find one, probably for the nostalgia, I still have the my
old program listings.
I saw the recent thread on the EXEC command, I figured out the EXEC command
and wrote a couple of 6800 assembly language programs (play music, dump the
ROMs to the printer, etc). As I recall the format of the command was EXEC
A$, where the string was typically read from the tape as a single file.
Monty McGraw
>From: Joe <rigdonj(a)intellistar.net>
>Reply-To: classiccmp(a)u.washington.edu
>To: "Discussion re-collecting of classic computers"
><classiccmp(a)u.washington.edu>
>Subject: Re: Tektronix 4051 or 4052
>Date: Tue, 10 Aug 1999 13:09:27
>
>Monty,
>
> Good Luck! I only know of two 4051s and only one 4052. I have one of
>the
>4051s. None of them are for sale. Are you looking for one to collect or
>what?
>
> Joe
>
>At 11:05 PM 8/9/99 -0500, you wrote:
> >I'm looking for an old Tektronix 4051 or 4052 graphics computer.
> >
> >Thanks in advance,
> >
> >Monty McGraw
> >Spring, TX
> >
> >Attachment Converted: "C:\ATTACH\Tektroni.htm"
> >
>
_______________________________________________________________
Get Free Email and Do More On The Web. Visit http://www.msn.com
The WD2797 has little in common with the i8272. It is essentially a WD1793
with a built-in PLL for clock recovery. The instructions are, I think, the
same as those for the WD1793.
The clock recovery circuit works adequately for data rates suitable for
5.25" drives, but is less than wonderful for the 8" drives. It was used
with great success on the 5.25" drive interfaces on Western Digital's line
of bridge controllers. AFAIK, it was not as well received as the 9229 and
9216, both of which were digital clock recovery circuits suitable for use
with 8" drives. These were popular enough, however, that someone on the
list probably has already scanned the data sheet.
Dick
-----Original Message-----
From: Dwight Elvey <elvey(a)hal.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Monday, August 09, 1999 6:59 PM
Subject: Information on part
>Hi
> I need information on a 2793. I know what it is, 'just need
>to know how it is the same and how it differs from some
>controller like a 8272.
> I looked at the obvious places on the net without results.
>Dwight
>
Fellow here has some good VAXen stuff pretty cheap. Contact directly
if you're interested.
-=-=- <snip> -=-=-
On Tue, 10 Aug 1999 11:02:10 GMT, in comp.os.vms you wrote:
>>From: wetboy <wetboy(a)shore.net>
>>Subject: FS: mVaxII, mVax2000, grey wall - $50.00
>>Newsgroups: comp.os.vms
>>User-Agent: tin/pre-1.4-980618 (UNIX) (SunOS/4.1.4 (sun4m))
>>Lines: 29
>>Message-ID: <SETr3.1282$EG4.221700(a)news.shore.net>
>>Date: Tue, 10 Aug 1999 11:02:10 GMT
>>NNTP-Posting-Host: 192.233.85.1
>>X-Complaints-To: abuse(a)shore.net
>>X-Trace: news.shore.net 934282930 192.233.85.1 (Tue, 10 Aug 1999 07:02:10 EDT)
>>NNTP-Posting-Date: Tue, 10 Aug 1999 07:02:10 EDT
>>Organization: Shore.Net/Eco Software, Inc; (info(a)shore.net)
>>Path: news1.jps.net!news.pbi.net!165.87.194.248!newsfeed.us.ibm.net!ibm.net!news.maxwell.syr.edu!news.shore.net!not-for-mail
>>Xref: news1.jps.net comp.os.vms:785
>>
>>MicroVax II:
>>
>> BA123 case
>> RD53
>> 9 MB ram
>> TK50
>> VMS 5.3
>>
>>MicroVax 2000:
>>
>> RD32
>> 6 MB ram (IIRC)
>> VMS 4.5B
>>
>>
>>VT320, LA75
>>
>>Most of VMS 5.0 "grey wall" (some
>>notebooks later than 5.0).
>>
>>
>>All for $50.00
>>
>>Pick up near Portsmouth, New Hampshire.
>>
>>E-mail me if you are interested.
>>
>>
>>-- Wetboy
-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho,
Blue Feather Technologies -- kyrrin (at) bluefeathertech [dot] com
Web: http://www.bluefeathertech.com
"...No matter how we may wish otherwise, our science can only describe an object,
event, or living thing in our own human terms. It cannot possibly define any of them..."
>Using RT-11 V5.01, on an 11/03 with a Dual RX02 drive,
>I would like to compare the files on two disks. Since it appears that
>the disk I booted from must remain in the drive, how do I compare two
>other disks?
You can't... the device/file comparison programs don't have the
code which allows them to mount another volume for the operation
and then mount the system volume (the /wait option in other
utilities).
Best you can do is copy the files to a common volume and compare
them there...
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
Using RT-11 V5.01, on an 11/03 with a Dual RX02 drive,
I would like to compare the files on two disks. Since it appears that the
disk I booted from must remain in the drive, how do I compare two other
disks?
Steve
Ok, I spoke to the employee handling the purge of obsolete equipment at
the company in Richardson, Texas. Here's the deal: they would prefer if
someone could just come and haul all the crap away and be done with it.
They don't want anything for it, just for it to be hauled away.
More has been added to the pile since the list I posted, but I don't know
what.
I'm going to probably be in the Dallas area at the end of this month or
beginning of September for probably the last time in the forseeable
future. I may make one visit or two or maybe even several, I don't know.
But, the point is that I can make arrangements with anyone in that area
who wants to meet me at the company and haul the crap away. Then you can
do what you please with the stuff. Sell it at a profit to others, be nice
and give it away for 1.2*shipping, etc.
So I put out the call to anyone in the Dallas region who is interested in
taking this on to e-mail me and figure out what to do with this stuff.
To those who have expressed an interest so far in some of the stuff, I'll
e-mail you separately about what happens next.
Sellam Alternate e-mail: dastar(a)siconic.com
------------------------------------------------------------------------------
Don't rub the lamp if you don't want the genie to come out.
Coming this October 2-3: Vintage Computer Festival 3.0!
See http://www.vintage.org/vcf for details!
[Last web site update: 05/25/99]
>1) Everyone said because the lower platter is fixed, there's no concern for
>alignment, precision, feeler guages, etc. Just unbolt the heads, clean 'em,
>and bolt 'em back on. No special checks and so forth. Before I unbolt them
I
>wanted to double check and make sure I wasn't about to do anything silly.
>So - just unbolt, remove, clean, rebolt, and power up?
Don't forget to vacumn the dust!!! And change the air filter.
>
>2) I was thinking (bad sign <grin>)...if the heads contacted the platter
>enough to scrape off a nice circle of oxide, won't cleaning the heads and
>replacing the platter accomplish nothing? What I mean is - isn't it very
>likely that whatever caused them to scrape in the first place won't be
fixed
>by a new lower platter and cleaned heads? What am I missing here?
The first time you spin it up I would unplug the head positioner and let it
spin for 10 minutes without the heads loading to be sure to get the last of
the dust out. I don't know if the HP will stay spinning if it does not find
a servo track however. If it doesn't then spin it up and down several times
before allowing the heads to load.
What you have done along with above comments are all I ever used to do.
Dan
--- allisonp(a)world.std.com wrote:
> > >Dhrystone clocks it at 1974 MIPS (aka 1.974 GIPS!) Truely it boggles the
> > >mind. I had to explain to our sysadmin how the uVAX 3900 sitting in my
> > >office was about the speed of a 386/25 and he nearly choked.
>
> > "There's more to computer performance than clock speed, folks."
>
> Bigtime!
>
> back when pc and Vaxen were being pitted, the 386/16 was on par with
> a Vax750 if it had the FPU chip. Otherwise the vax could out math it.
I always liked to see the looks on people's faces when I compared our
VAX-11/750 (0.6 VUPS) with the *integer* performance of a Sega Genesis
(8Mhz 68000). The reason we could support 20+ users on the VAX with 8Mb
of memory was a) the 32-bit channel to disk and b) DMA outbound serial I/O
(a wad of Emulex 16-port muxes). Of course, it was more fun to be the
only user, especially when playing "Empire".
-ethan
===
Infinet has been sold. The domain is going away. Please
send all replies to
erd(a)iname.com
_____________________________________________________________
Do You Yahoo!?
Bid and sell for free at http://auctions.yahoo.com
On Mon, 09 Aug 1999 17:10:35 Joe <rigdonj(a)intellistar.net> writes:
> At 11:26 AM 8/9/99 -0700, you wrote:
> >Another classic computer maker "bites" the dust.
> >
> >See: http://www.news.com/News/Item/0,4,40250,00.html
> >
> >Which is a news.com story about how EMC (makers of storage products
> mostly)
> >will buy Data General for 1.1 billion in stock. This was the last
> of the
> >great mini-computer companies that had been left standing after DEC
> was
> >bought by Compaq.
>
> I guess that makes the DG Nova down here that needs rescuing an
> instant
> classic. Someone should grab it and put in on E-OverPay with a big
> pitch
> about how rare it is!
>
> Joe
This would be one of those rare instances where hype would be
mostly true . . .
___________________________________________________________________
Get the Internet just the way you want it.
Free software, free e-mail, and free Internet access for a month!
Try Juno Web: http://dl.www.juno.com/dynoget/tagj.
In a message dated 8/9/99 8:00:47 AM Eastern Daylight Time, gene(a)ehrich.com
writes:
> I need a battery for my IBM Thinkpad 500.
>
> Does anybody have one available or know where one can be obtained?
>
www.direct.ibm.com
choose parts and perhiphs link. you can locate the fru and price for the
battery. i've heard of a store called batteries plus that supposedly has lots
of laptop batteries that might have it. worth checking out.
--
d.b. young team os/2
--> this message printed on recycled disk space
visit the computers of yesteryear at-
http://members.aol.com/suprdave/classiccmp/museum.htm
Hum.... well... knowing what I know about HP corporate (their recent breakup
of the business partnership between them and EMC was *VERY* confrontational)
it makes me wonder if EMC purchasing data general isn't a "spite" move. When
HP killed the HP/EMC partnership EMC lost 20% of their revenues...
Jay West
-----Original Message-----
From: allisonp(a)world.std.com <allisonp(a)world.std.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Monday, August 09, 1999 3:21 PM
Subject: Re: EMC buys Data General
>> >Dhrystone clocks it at 1974 MIPS (aka 1.974 GIPS!) Truely it boggles the
>> >mind. I had to explain to our sysadmin how the uVAX 3900 sitting in my
>> >office was about the speed of a 386/25 and he nearly choked.
>
>First I think that is quite in error. First the clock on the 3900 is well
>above 25mhz and the CISC impmentation of the VAX used there is easily
>more of the 486dx/early Pentium class.
>
>> Yeah but did you explain that you can pile 30 users on that 3900 and
it'll
>> still perform about the same? That's not even possible with current
Wintel
>> hardware.
>>
>> "There's more to computer performance than clock speed, folks."
>
>Bigtime!
>
>back when pc and Vaxen were being pitted, the 386/16 was on par with
>a Vax750 if it had the FPU chip. Otherwise the vax could out math it.
>
>A real compare would be a NT box running many xterms and thin clients
>against a VAX... it would show how weak the PCs are. Vaxen with the high
>throughput IO for storage and all has all the advantages.
>
>Allison
>
>
>
>
Greetings!
This Message is not SPAM. If this message was sent to
you in ERROR, you have my sincere apologies, PLEASE IGNORE IT.
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Tony Duell inquired:
> > A couple of months back I bought a second-hand Commodore 1570 disk
drive.
> > It came in the original box, which is, alas, in very poor condition. The
> > polystyrene is cracked and has chunks missing. The cardboard sleeve is
> > torn/ragged.
> >
> > Is there any point in keeping it? I don't normally care about the
packing
> > boxes for computers, but I know some people do. Also, I believe the 1570
> > is not the most common CBM drive, so presumably the boxes for them
aren't
> > that common either.
Sellam Ismail replied:
> I think its worth holding onto because its a part of the history of the
> product. It tells a bit about the company at that point in its life in
> terms of the packaging design and such. If the styrofoam is making a mess
> then perhaps it'd be best to throw that out, and then maybe fold the box
> up and stick it away somewhere to preserve it for posterity.
In general, Tony, I agree with Sam. The packaging can provide insight into
both the packaging technology of the times and the marketing strategy (some
of the claims on those old boxes are outrageous, and the graphics can be
interesting, too!). Additionally, collectors will certainly pay a premium
for an item which includes some or all of the original peripheral "trash."
The foam does tend to break down, especially if it is in contact with other
plastic items such as cables, etc, but it is still worth keeping. My
solution is to wrap the foam -- and each item it contains -- in _stable_
plastic bags, and then stash the whole mess in a larger cardboard box. This
of course requires a certain abundancy of storage space . . .
Glen Goodwin
0/0
Hi Tony,
>No, the 286 has 24 address lines....
Thanks for clearing that up - I'd mistakenly thought it had 22.
>....This machine (p850ug1) started life as a PC/AT. Although it now
>has a 486 processor....
How'd you do that? Sounds like one heck of a hack....
TTFN - Pete.
--
Hardware & Software Engineer. Sound Engineer.
Collector of Arcade Machines, Games Consoles & Obsolete Computers (esp DEC)
peter.pachla(a)virgin.net |
peter.pachla(a)vectrex.freeserve.co.uk |
peter.pachla(a)wintermute.free-online.co.uk | www.wintermute.free-online.co.uk
--
Seen on Usenet. Anyone want this stuff, get in contact with the seller
directly.
Thanks.
-=-=- <snip> -=-=-
On Sun, 08 Aug 1999 17:58:09 GMT, in comp.os.vms you wrote:
>>From: midigear(a)gis.net (midigear)
>>Newsgroups: ne.forsale,comp.os.vms,comp.sys.vax
>>Subject: FS: rx-50 drive, digital mouse / delni
>>Date: Sun, 08 Aug 1999 17:58:09 GMT
>>Organization: Posted via Supernews, http://www.supernews.com
>>Lines: 17
>>Message-ID: <37adc523.20592952(a)news.gis.net>
>>Reply-To: midigear(a)gis.net
>>X-Complaints-To: newsabuse(a)supernews.com
>>X-Newsreader: Forte Free Agent 1.11/32.235
>>Path: news1.jps.net!news.pbi.net!206.170.175.2!ns2.foothill.net!oronet!news.gv.tsc.tdk.com!newsout.pdxfiber.net!cyclone.bc.net!feed.newsfeeds.com!newsfeeds.com!nntp-relay.ihug.net!ihug.co.nz!remarQ60!rQdQ!supernews.com!remarQ.com!corp.supernews.com!not-for-mail
>>Xref: news1.jps.net ne.forsale:276 comp.os.vms:738
>>
>>LAST CALL
>>
>>- digital delni hub (with a dozen connectors)
>>- digital mouse model VS10X-EA Rev 3a
>>- miscellaneous related items
>> (VMS, a couple dozens floppies)...
>>- RX-50 disk drives (2 drives in one assembly)
>>- long keyboard/monitor cable (3 BNC cables (RGB) and 1 keyboard on
>>one end, multipin on ther other)
>>
>>for pickup in somerville (boston) / davis square
>>
>>please make an offer, I'll probably take it!
>>
>>I CANNOT ANSWER ANY TECHNICAL QUESTIONS ON THIS
>>- ALL ITEMS AS IS
-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho,
Blue Feather Technologies -- kyrrin (at) bluefeathertech [dot] com
Web: http://www.bluefeathertech.com
"...No matter how we may wish otherwise, our science can only describe an object,
event, or living thing in our own human terms. It cannot possibly define any of them..."
On Sun, 08 Aug 1999 22:22:45 -0500 Chris Cureau <cureau(a)centuryinter.net>
writes:
>> Oh yeah, like the time Commodore shot itself in the foot claiming on
>>the outside of the box that the C64 could run CPM programs! Of course
>>then the FTC stepped in. . . .
>
> The Commodore 64 _could_ run CP/M programs...provided one had the
>optional Z80 cartridge...though I never tried myself. :-) The 128 was
>the first Commodore machine to actually boot CP/M disks with a 1571
drive,
>if I remember correctly.
>
>Just my two cents,
>Chris
>
You are absolutely correct! The Z-80 cart was originally shelved when
Commodore decided it was taking too much time and engineering effort to
develop. The FTC forced Commodore to produce the carts or be sued
big time. They produced enough to satisfy the FTC requirements, and
that was the end of that. CPM carts are quite scarce as a result.
(And a bit buggy).
Jeff
>
___________________________________________________________________
Get the Internet just the way you want it.
Free software, free e-mail, and free Internet access for a month!
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The supply connections on the schematic are +24, +12 , +5, Gnd, and -12.
The +24 is shown with a separate return from that of the other supplies. It
seems to me that there is a considerable tolerance on the +24, but that's a
common supply voltage. The thermal printer appears to be a TI EPN-9120,
which might be just as happy with 18 volts, but might require a different
set of passives at that voltage. I doubt you'll hurt anything with a
voltage as low as 18Vdc, though the stepper may want more. When I used this
mechanism, I usually AC-coupled the stepper so the circuitry didn't heat
when the printer was idle.
All indications are that the AIM uses a couple of parallel port bits to
provide the ultra-slow (110 bps) interface to the TTY via some transistors
and TTL gates. It's not the usual isolated 20mA interface. However, TXD is
on J1/pin U and its return is on S, while the RXD from the TTY KEYBOARD and
its return are on J1, pins T and R, respectively.
If you want to improve anything at all, I'd start by combining the input
clock with the R/nW signal to create the write strobe to the RAM memories.
That will provide considerably better hold time, which 2114's definitely
require. I normally 'NAND' the Phase-0 and Phase-2 clocks with inverted
R/nW to accomplish this.
There's a single-step switch and a reset switch, as well as the one that
selects the TTY keyboard.
I wouldn't be afraid to "play" with this one. It looks like it can handle
reasonable abuse.
Dick
-----Original Message-----
From: Hans Franke <Hans.Franke(a)mch20.sbs.de>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Monday, August 09, 1999 7:24 AM
Subject: Re: Spiffy Little Hamfest Find
>
>>>Geee, what a neat beast - I'm searching a cased AIm (or an AIM
>>>case) for years.
>>>> I haven't powered it up yet since it seems to want 12 and 24
>>>> volts and I don't have a 24 volt supply handy.
>>>Wasn't it +5 and +/-12 ? It's a long time ago.
>
>> Yes, 5 VDC and plus and minus 12 VDC. The -12 is only used for a comm
>> port I think. The + 12 is used for the comm port and the printer. You CAN
>> run it without the plus and minus 12 VDC but you'll lose the comm port
and
>> printer. You MUST have the 5 VDC.
>
>Exact, the 12V are also needed for the TTY.
>
>>>> Does anyone have the pinouts for the expansion and application
>>>> connectors on this little guy?
>>>Try Richards page - he did a good job and scanned a lot of the Manuals.
>>>http://highgate.comm.sfu.ca/~rcini/classiccmp/my_docs.htm
>
>>>> Also, there's a switch that lets you switch between keyboard and
>>>> tty but I see no place to connect a tty, not even a little dual
>>>> inline connector or anything appropriate. Clues?
>>
>> I don't know. Maybe it uses the keyboard connector or the expansion
>> connector. You should be able to trace the KB-TTY switch out if nothing
>> else. BTW some of my boards don't have the switch. The traces are there
and
>> there's a jumper soldered between two of them.
>
>> >There are two edge connectors - one supplys the system (extension)
>> >Bus, the other offers the 'user' port, including a 20mA TTY (like
>> >the KIM)
>
>> Mine say "J1 Application" and "J3 Expansion". The keybaord connects
to
>> "J4". "J2" connects to the printer. I don't know where the comm port is.
>> Have you looked at the stuff on Rich's web site yet. The manuals there
>> should tell where it is and how to use it.
>
>J1 Application == 'user' port, including the com line and the TTY line
>J3 Expansion == system bus
>
>Gruss
>H.
>
>--
>Stimm gegen SPAM: http://www.politik-digital.de/spam/de/
>Vote against SPAM: http://www.politik-digital.de/spam/en/
>Votez contre le SPAM: http://www.politik-digital.de/spam/fr/
>Ich denke, also bin ich, also gut
>HRK
The local Hospice organization is having their annual flea market. One of the
workers pulled me aside and asked if I knew anyone that could use a box of 16
brand new replacement keyboards for IBM laptops. Neither of us know what model
they are for. He gave them to me to sell as they would have been dumpstered.
If anyone is interested please contact me off list for shipping etc info. I
will be asking for 2 checks. One to Hospice and one to me for actual shipping
costs. The one to Hospice is for what you feel they are worth. Keep in mind
they are a non profit organization and the flea market is how they raise funds
for the local home.
The IBM P/N 07G1103
FRO P/N 07G1735
EC No. C81240
Then under the bar code is *1M630037331
They do not have the pointer nub in the middle of the keyboard so I know they
are for an older model. Might even meet the 10 year rule.:)
FWIW almost all of the PC related stuff that I get in the course of my business
gets donated to Hospice for this annual flea market.
Dan
Hi,
Is anyone familar with this unit? I know what it is, it's a screen
printer. I have a catalog that describes an earlier model but not the 4634.
Does anyone know if this one also requires the dry silver paper? Will it
work with the Tektronix 4051 computer? Exactly how are these connected to
the system? I found one of these in a junk yard. It's still new in box. I'm
wondering if I should grab it to add to my Tek 4051.
Joe
Anybody who started with this thread (and many thanks to Mike Ford),
I got a second hand wall-wart power supply which puts out 9v dc 500
mA. The connector on the wall-wart cable has a socket for a central pin and
an outer conductive barrel. The socket is +, the outer barrel is -
according to the power supply label.
I plugged it into the Etherprint-T Plus and it ran fine for at
least 5 minutes (after which I unplugged it and went to bed). I'll let you
know if it causes trouble later. YMMV, of course, but as far as I can tell
Mike's forwarded post took care of me perfectly. Thanks, Mike!
- Mark
Cleanup efforts have unearthed a Unibus board: Specifically, M8200-YB.
If no one speaks up for it, I'll just put it out at my garage sale on the
28th/29th. Otherwise, first person to offer $5.00 (covers packing and
shipping) gets it.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho, Blue Feather Technologies
http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com
Amateur Radio: WD6EOS since Dec. '77
"Our science can only describe an object, event, or living thing in our
own human terms. It cannot, in any way, define any of them..."
<>It's a TK50 in an external case with a single 50 pin D-sub connector and
<>no ID switch.
<
< A single connector? A D-sub 50 no less?
<
< Geez... that's downright psychotic. Ok, I'm baffled. Anyone else?
Sounds like a externally mounted TK50 for use with the usual Qbus M7546.
The companion was the externally mounted RD5x for use with the RQDXn and
the matching distribution card. Both are for those that had BA23s and
no place left for a disk or tape.
Allison
At 15:55 08-08-1999 -0400, you wrote:
>Is a TK50-D not a SCSI device? It sure bears only about a fifth of a
>superficial resemblance to one.
Never ran into the 'D' version. The two I've seen that are SCSI are the
TK50Z-FA (for use with VAXStation 2000) and the more generic TK50Z-GA (less
proprietary on the SCSI side than the FA).
>If not what is it used with?
Depends. If you're talking the bare drive with the 26-pin Berg header on
the back, it's a proprietary serial interface which requires the M7546 (or
similar) tape controller. Such were often installed in MicroVAX II and III,
and could also be found on the MicroPDP-11 series.
If you're talking external case with a pair of 50-pinners on the backside,
that could be either an FA or a GA. Such were used with systems like the
VAXStation 3100 series, or anything else that needed a TK50 on SCSI.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho, Blue Feather Technologies
http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com
Amateur Radio: WD6EOS since Dec. '77
"Our science can only describe an object, event, or living thing in our
own human terms. It cannot, in any way, define any of them..."
Hello List,
Would anyone like a Tektronics 4113 graphics terminal? It's in
perfect working order, but slightly scuffed here and there. One 8" floppy
drive that works, color monitor that works, and perhaps even the color
printer that goes with it, though I haven't seen that thing recently.
I'm looking for pdp11 stuff, a sun3 framebuffer, cash or a good sob story
in exchange.
It's near Pittsburgh, PA. and it's pretty big, so you'll probably
not want to mess with shipping..
Act fast before I shamelessly pimp it on Ebay...
jake
Forgot to mention, I have a bit of DOC, but haven't read it yet. Perhaps I
can find where the serial port connections are located. Since the thing
doesn't appear to have a UART, I'm curious what it uses. Perhaps it uses a
6522 serial I/O port. It could bit-bang, I guess.
After I've looked the docs/schematics over, I'll know more, which I'll
share, if needed.
Dick
-----Original Message-----
From: Anthony Clifton - Wirehead <wirehead(a)retrocomputing.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Sunday, August 08, 1999 4:09 PM
Subject: Spiffy Little Hamfest Find
>
>Found an AIM-65 at a hamfest today (at the Amana Colonies near
>Cedar Rapids, Iowa) for $1.00. It's got the cheesiest brown,
>plastic case I've ever seen, a cut little printer built in,
>an ascii keyboard, a funky led display and not much else.
>
>I haven't powered it up yet since it seems to want 12 and 24
>volts and I don't have a 24 volt supply handy.
>
>Does anyone have the pinouts for the expansion and application
>connectors on this little guy?
>
>Also, there's a switch that lets you switch between keyboard and
>tty but I see no place to connect a tty, not even a little dual
>inline connector or anything appropriate. Clues?
>
>Thanks...
>
>Anthony Clifton - Wirehead
>
>
The plastic cases were an add-on, but the printer and "funky" LED display
were standard. It's a standard sort of 6502 board, with a 1 MHz processor,
a bit of ram and a bit of ROM, depending on what you put in. I've got two
of them (borrowed) atthe moment, one with a video board and extra prom board
and a prom programmer, and the other without the case, etc, but with all
available ram and rom populated. I believe it's got the assembler and BASIC
in ROM along with a monitor. AFAIK, there's a FORTH available for it as
well, but I'm not a 4th sort of guy.
Joe Rigdon has a couple of these with the BASIC and Assembler ROMs on board.
Maybe you want to pull his chain and see what's really in those ROMs he's
got.
Dick
-----Original Message-----
From: Anthony Clifton - Wirehead <wirehead(a)retrocomputing.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Sunday, August 08, 1999 4:09 PM
Subject: Spiffy Little Hamfest Find
>
>Found an AIM-65 at a hamfest today (at the Amana Colonies near
>Cedar Rapids, Iowa) for $1.00. It's got the cheesiest brown,
>plastic case I've ever seen, a cut little printer built in,
>an ascii keyboard, a funky led display and not much else.
>
>I haven't powered it up yet since it seems to want 12 and 24
>volts and I don't have a 24 volt supply handy.
>
>Does anyone have the pinouts for the expansion and application
>connectors on this little guy?
>
>Also, there's a switch that lets you switch between keyboard and
>tty but I see no place to connect a tty, not even a little dual
>inline connector or anything appropriate. Clues?
>
>Thanks...
>
>Anthony Clifton - Wirehead
>
>
From: "r. 'bear' stricklin" <red(a)bears.org>
> Is a TK50-D not a SCSI device? It sure bears only about a fifth of a
> superficial resemblance to one.
> If not what is it used with?
The -FA and -GA models have a SCSI controller board (TZK50) with the
drive, in the box which is about 12.5 inch (32 cm) wide.
Assuming that the "-D" is the one which is about two-thirds as wide,
it is just the raw drive with its ribbon cable going to a (largely idle)
50-pin D connector (as I recall). It connects to a suitable controler,
such as the Q-bus TQK50 or the UNIBUS TUK50. I believe that it was most
commonly used with big-old UNIBUS machines like the VAX-11/7xx, which
had no convenient place for an internally mounted TK50 drive, whereas
most Q-bus systems did.
Nowadays, the most common use for one is probably as a safe place to
keep a spare drive, in case the drive in one's -FA or -GA fails.
------------------------------------------------------------------------
Steven M. Schweda (+1) 651-645-9249 (voice, home)
1630 Marshall Avenue #8 (+1) 612-754-2636 (voice, work)
Saint Paul MN 55104-6225 (+1) 612-754-6302 (facsimile, work)
sms(a)antinode.org sms(a)provis.com (work)
<> The one on my s100 board is definatly broke... I wrote the bios!
<
<Are you saying you have an RTC chip that changes the year from 1999 to
<something other than 1900 or 2000? If so, what on earth is the chip?
Very early msm5832 C1979.
What you've missed is many of the early parts and even the Dallas parts
were buggy. This is one of the very early and quite buggy ones!
Allison
In a message dated 8/8/99 2:47:49 PM Eastern Daylight Time,
ard(a)p850ug1.demon.co.uk writes:
> >
> > I keep all boxes that I get until a better one comes along. John
>
> One other thing to remember. I (like most people here I guess) are
> _terminally_ short of space.
>
> If I had infinite space, I'd keep all the boxes, etc, in case they were
> useful/historically important. As it is, I am not so sure....
>
well, if the boxes are in decent shape, they do stack better. One thing to be
careful of though, is to make sure that insect pests aren't hitching a ride
in an old box you decide to bring in your house.
--
d.b. young team os/2
--> this message printed on recycled disk space
visit the computers of yesteryear at-
http://members.aol.com/suprdave/classiccmp/museum.htm