- test-drb@ccmp.vtda.org - classiccmp.org

by SUPRDAVE＠aol.com

the first one is a bal-500 eprom programmer. it fits in a slot, but it's too tall to run with the cover on! it's not a pc card either. anyone with info on this? the second is a mpc peripherals ap-32 card. its full length with a language card connector, and empty socket for eprom i guess and 6 leds at the top and a toggle switch at the back. the third one is a full length card called an appli-card by pcpi. the last one is a full length card that looks older than most made by axlon 1981. it has a 34 pin header at the top of the card. lots of 74lxxxx chips. no other identification for this one. i can take pictures of these with my quickcam and make available on my page if need be. if anyone knows anything about these cards, give me a shout please. david

28 years, 7 months

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My weekend DEC haul...

by rcini＠classic.msn.com

Hello, all: I was able to score the following from Temple Univ. on Friday. There is still a load of stuff for older machines, and older machines themselves (such as a load of 11/23s, a handful of 11/40s, two 11/34s, plenty of RL01s, monitors, printers, etc. Too much to report...and I didn't even have time to get to the "documents" room, where they had software and manuals for all of the hardware. I spent over 4 hours there and didn't even scratch the surface. I'll be going back in early-October to get more stuff. Here's what I got: 1 DEC 6' 19" rack with 30a power controller 1 MultiTech modem rack and 2 DEC communications servers. The rack is filled with 10 2400-baud modems. 2 DECMate terminals minus keyboards :-( maybe next time. 1 EPROM programmer/IC tester (no disk; bummer) - Miscellaneous cables 1 RD52 hard drive; bad power supply and the grandaddy of them all: A working VAXstation I. Hadrware/software unknown at this time, although I can identify a console port, an Ethernet AUI port, and 12 serial ports. Now, I have a shopping list for my next trip, and I need to see the docs and software room. Time to play... +============================================+ | Rich Cini/WUGNET | | <rcini(a)msn.com> | | MCP Windows 95 and Windows Networking, | | Charter ClubWin! Member (6) and a | | collector of classic computers | +============================================+

28 years, 7 months

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anyone heard of "lobo drives"?

by SUPRDAVE＠aol.com

I decided to catalog all my apple ][ stuff this weekend and rediscovered some controller cards and some drive analog cards by a company called lobo drives. they are in good shape, but definately appear to be their age. the circuit boards for the controller cards is almost translucent and they don't seem to have the component or soldering/design quality that later model cards have. several the the analog cards are missing the 74ls125? chip, probably because of incorrect cabling. anyone heard of this company? are the parts worth keeping? david

28 years, 7 months

2
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PDP11/15

by jolminkh＠c2.telstra-mm.net.au

After all the discussion here recently about collecting PDP11's I have located one which I intend negotiating for. I haven't actually seen it yet. It is a PDP11/15, a model number that I haven't seem mentioned. Is there a listing somewhere on the web that describes the various models as there is for PDP8's ? This one apparently dates from about 1970, and is probably incomplete. There was talk of a rack, the PDP11/15 itself, some RKO5 disk drives and some boxes labelled PDP11/10 which may be other computers. There is no other IO device other than front panel switches. Could this equipment be used with a more recent terminal? I have no chance of finding a card reader or teletype but have access to several VT220's.

28 years, 7 months

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Replies

by lwalkern0spam＠interlog.com

My apologies. I have been setting up my "Pegasus" mailer ( a GREAT prg ) and had inadvertedly unchecked the original message indicator. ( > ) ciao larry lwalkernospam(a)interlog.com remove n0spam to reply

28 years, 7 months

1
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What is this tape cartridge?

by healyzh＠ix.netcom.com

I was checking out the local surplus shop looking for a 19" rack for my latest computer project, no luck there but I did find some other stuff. What I'm really wondering about is this tape cartridge I found: COUSINO Echo-matic II Self Threading Tape Cartridge Orrtronics, Incorporated Toledo, Ohio, USA It's quarter inch tape in a clear case approximatly 1" x 3.5" x 5" in size, and rounded on one end. The actual tape reel is about 2.25" and has almost no tape on it. The tape looks to be a continous loop. Does anyone have any idea what this is? Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)ix.netcom.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Mac Programmer | +----------------------------------+---------------------------+ | For Empire of the Petal Throne, and Traveller Role Playing | | see http://www.dragonfire.net/~healyzh/ |

28 years, 7 months

3
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FW: SMD Disk drive, FREE to good home -- UK

by kyrrin2＠wizards.net

Can one of our UK readers help with this? Fellow's got an SMD drive free to the first caller. Thanks! -=-=- <snip> -=-=- I have a surplus Fujitsu M2333K (330MB) SMD drive to give away. This is an 8" unit with power supply, and - as far as I know - in working order. It's presently in a small cabinet which was built to hold four of these units. Pressure of space forces me to get rid of it, so it's free to a good home, providing you collect it from York (UK). Otherwise, sadly, it will contribute to some landfill site... Pete <pnt103(a)cs.york.ac.uk> Tel. York (01904) 488699 -=-=- <snip> -=-=- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- UNSOLICITED COMMERCIAL E-MAIL SUBJECT TO $500.00 PROOFREADING FEE PER ITEM SENT. SENDING ME SUCH UNSOLICITED ITEMS CONSTITUTES UNDERSTANDING AND ACCEPTANCE OF THESE TERMS. Bruce Lane, Sysop, The Dragon's Cave (Fido 1:343/272) http://www.wizards.net/technoid "...Spam is bad. Spam wastes resources. Spam is theft of service. Don't spam, period..."

28 years, 7 months

1
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What's this ISA card?

by ard＠p850ug1.demon.co.uk

A non-text attachment was scrubbed... Name: not available Type: text Size: 682 bytes Desc: not available Url : http://www.classiccmp.org/pipermail/cctalk/attachments/19970823/d5b626e3/at…

28 years, 7 months

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PRELIMINARY Vintage Computer Festival Announcement

by dastar＠crl.com

This announcement is aimed to inform the members of the classiccmp community of the plans for the upcoming Vintage Computer Festival and is not intended for general distribution. Vintage Computer Festival The Vintage Computer Festival (VCF) is an event held to celebrate computers and their history. Due to the incredible pace of computing technology, computers at least ten years and older are the main focus of this event. Meet other collectors to trade tips, stories and even computers, hear talks by notable computer industry figures, attend workshops geared towards the vintage computer collector, visit the on-site interactive vintage computer museum. Two days of celebrating the science and technology of our diverse computer heritage! Event Highlights Vintage Pioneer (Featured Speaker) TBA - Candidates include Steve Wozniak (Inventor and co-founder of Apple Computer), Lee Felsenstein (Inventor of the SOL-20 Computer), Chris Espinosa (Legendary Programmer, Apple Computer). Guest Speakers TBA - Candidates include Jodelle French (Curator, Intel Museum), Robert X. Cringely (Author of _Accidental Empires_, Producer of _Triumph of the Nerds_ as seen on PBS), Steven Levy (Author of _Hackers_), Paul Fridell (Designer of IBM 5120), Kip Crosby (President of Computer History Association of California) Vintage Computer Spotlight Each year a classic computer is chosen to be featured in the Vintage Computer Spotlight. This year, being the 20th anniversary of the Apple ][, what else but the Apple ][ will be featured. What's more, each year's Vintage Computer Spotlight subject will be the grand-prize of the end-of-show drawing. All attendees will be automatically entered to win this year's Spotlight computer, an original Apple ][ with Integer BASIC ROMS! Workshops A panel of vintage computer collectors will give talks on topics relating to the hobby of classic computer collecting. Discussions will include: Restoration and preservation of old computers - external and internal cleaning tips and techniques; basic electronic repair tips; storage procedures for the long haul Software preservation with a focus on storage tips and techniques for the long haul Computer Collecting 101 - basic computing skills including operation, disk formats, serial communcations basics, how to recognize computers and their peripherals Vintage Computer Museum A hands-on, interactive museum featuring many examples of classic computing machinery through the years. The exhibit is composed of artifacts on loan from the collections of organizations and individuals, and will span the course of decades from the 1950s to the 1980s. Vending A swap-meet style vending area where attendees can shop for old, in some cases antique computers, peripherals, documentation and software. No IBM clones here, just good old classic computers. Where and When TBA - Tentative dates: October 18-19, 1997 Venue TBA - Tri-Valley Area, East Bay (San Francisco Bay Area) Admission - TBD Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass

28 years, 7 months

5
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Computers (fwd)

by manney＠nwohio.com

> > Switch 1-2 tells it (both PC and XT) about the presence of the coprocessor. > > (I do, btw, have an 8087 in my collection...only one I've ever seen! Even > > rarer was the 8088 to 386 SX-16 upgrade board...the world's s-l-o-w-e-s-t > > 386.) > > K00L. How long does it take to install Linux using that? :-)} Ya know, I was going to try to run Windows on it -- it came with 1 MB. That ought to be interesting across an 8 bit bus. You suppose I could fit enough files on my ST-412? Manney

28 years, 7 months

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Maybe not here-floppy for Toshiba

by rcini＠classic.msn.com

I know that this really doesn't belong here, but in some circles, the old Toshiba laptop that I have may be considered a classic! Anyway, I'm looking for help finding an internal floppy drive for my Toshiba 3100/20 laptop. It's a portable, non-battery Red plasma laptop, with a messed-up 720k floppy drive. Does anyone know where I can get one of these. Toshiba want's over $150 for one, and I won't pay that for a crappy 720k drive on a free machine. Any leads appreciated! Rich Cini/WUGNET rcini(a)msn.com

28 years, 7 months

2
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Lisa II Power supply wanted in Bay Area...

by kevan＠heydon.org

Hi, I have been looking for a power supply for my Lisa II for some time now, but as Lisa seem to be very rare in the UK I have had no luck so far. I guess they are more common in the US, so I am putting out this email in the hope of finding someone who has a spare they can let me have. I know of someone who would be willing to transport one back from the Bay Area this weekend which would be real good because it would save a lot in shipping costs. Many thanks for listening... -- Kevan Old Computer Collector: http://staff.motiv.co.uk/~kevan/

28 years, 7 months

2
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East Coast PDP's

by danjo＠xnet.com

Boy I thought I had lost this one 8-( But NOPE I found it! Harvard seems to have an excess. I can't get there but you people on the East Caost may have a beter chance. Please talk to Clifford. > From chen47(a)fas.harvard.edu Mon Aug 11 19:55:23 1997 > Date: Mon, 11 Aug 1997 14:18:35 -0400 (EDT) > From: Clifford Chen <chen47(a)fas.harvard.edu> > To: Brett <danjo(a)xnet.com> > Subject: Re: PDP-11 miscellany for sale Hi. Sorry for the extreme delay, but we've had quite a time organizing and documenting our stuff. In any case, here's the list we drew up: Hardware: 1 Digital Decscope (vt-52) 1 Heathkit H19 Terminal (vt-52?) 2 DecWriter II's 1 PDP-11/05 1 PDP-Industrial 11 (a model 35, I think) 1 RK-05 drive + interface 1 Card reader 9+ bus interfaces 1 RK-07 disk drive and 48 inch rack 2 Expansion boxes with power supplies 3 extra power supplies lots of unidentifiable circuit boards 1 RL-01 disk 1 Nashua 15-12 disk a bunch of RK-05 cartridges 1 MT-11 Tape drive and rack Documentation: 1) RT-11 System Reference Manual 2) Programming RSX-11 in Macro and Fortran 3) Workbook for 2) 4) RSX-11 Task Builder manual 5) RSX-11 I/O drivers reference manual 6) RT-11 Software Support Manual 7) RT-11 System Message Manual 8) RT-11 Programmer's Reference Manual 9) RSX-11M PDP-11 Record Management System 10) RSX-11M System generation and installation 11) PDP-11 DL-11 asynchronous line interface engineering drawings 12) RK-05 Engineering drawings 13) KW11-2 Engineering drawings 14) Bootstrap Terminator schematics 15) BA-11-K Mounting box manual 16) RK-07 Schematics 17) KT-11D Memory Manager schematics 18) ME-11L Core memory Schematics 19) KE11-F Floating Instruction Set Schematics 20) TM11 DEC Magtape Schematics 21) KW11-P Programmable Real-time clock Schematics 22) TU10 DEC Magtape engineering drawings 23) Power supply/chassis engineering drawings 24) DL-11 Asynchronous Line interface schematics 25) H720 Power supply and rackmount drawings 26) RK-711N schematics 27) DL-11 Asynchronous line interface schematics 28) Restart Loader schematic 29) KT-11D Memory Manager 30) PDP-11/05 engineering drawings 31) LAXX-KG drawings 32) RK-05J engineering drawings 33) More RK-05 engineering drawings 34) RK-11D disk controller schematics 35) RK-611 schematics 36) KD-11A schematics 37) Qume daisywheel manual and schematics 38) Heathkit terminal manual 39) RK-07 manual and schematics 40) DECwriter 2 manual 41) Model 1770 memory manual 42) KT-11 memory manager manual 43) DL-11 asynchronous line interface manual 44) RT-11 Software Support Manual 45) RT-11 System User's guide 46) RT-11 Documentation Directory 47) RT-11 System reference manual 48) Qume interface manual 49) RX-02 floppy manual 50) RT-11 Programmer's manual 51) RT-11 System release notes 52) RT-11 Fortran manual 53) Kermit Manual 54) DSR (text formatter) manual 55) RT-11 intro 56) Decwriter II maintenance manual 57) RT-11 Basic manual 58) RT-11 software support manual 59) LISP manual 60) ODT Reference (RSX-11) 61) RSX-11 Crash dump analyer manual 62) RSX-11 Error logging 63) RSX-11 System Library routines 64) RSX-11 diagnostics 65) RSX-11 System library update notice 66) RSX-11 Program development 67) RSX-11 I/O operations 68) Random pages from a 1984 Byte magazine 69) Centronics Series 100 Printer manual 70) M200 Card Reader manual 71) Raytheon PDP-11 repair manual 72) RX211 floppy controller drawings 73) KT-11D memory management manual 74) KW11-L programmable clock manual 75) DL-11 asynchronous line manual 76) MM11S, MF-11L, MF11-D core memory systems 77) BA11K mounting box manual 78) DL-11 asynchronous line manual 79) XXDP - PDP11 diagnostic manual 80) MS11-L MOS memory users guide 81) PDP-11/05-s, PDP-11/10-s system manual 82) BA11K mounting box 83) BA11K technical manual 84) DL-11 asynchronous line manual 85) DR11-W direct memory interface module 86) BA-11K engineering drawings BC -- ------------------------------------------------------------------ Name: Classic Computer Rescue List URL: http://www.geocities.com/BourbonStreet/1055/classic.html Name: The Classic Computer Encyclopedia Page URL: http://www.xnet.com/~danjo/classic/ Name: Classic Computer ListOp URL: http://haliotis.bothell.washington.edu/classiccmp/

28 years, 7 months

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Finding and Caring for PDP's or VAX's

by healyzh＠ix.netcom.com

Hi, For quite some time I've been pondering getting either a PDP or a VAX, I'm wondering about a few things. First and formost would be how does one go about finding one :^) and what kind of price can I expect? Also, what would space and power requirements be? Yes, I'm aware they vary in size from tiny little things, up to systems that require a full sized computer floor. I'm thinking a system that would fit in a garage as far a size goes. Also what would be a good source to familiarize myself with the various models as I embark upon my latest quest? Thanks, Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)ix.netcom.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Mac Programmer | +----------------------------------+---------------------------+ | For Empire of the Petal Throne, and Traveller Role Playing | | see http://www.dragonfire.net/~healyzh/ |

28 years, 7 months

1
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Multiple Topics...

by carl.friend＠stoneweb.com

On Mon, 18 Aug 1997 21:51:45 -0500 (CDT), Brett wrote this: > http://haliotis.bothell.washington.edu/classiccmp ^^^^^^^^ Why do I always parse this as "halitosis"? :-) ______________________________________________________________________ | | | | Carl Richard Friend (UNIX Sysadmin) | West Boylston | | Minicomputer Collector / Enthusiast | Massachusetts, USA | | mailto:carl.friend@stoneweb.com | | | http://www.ultranet.com/~engelbrt/carl/museum/ | ICBM: N42:21 W71:46 | |________________________________________________|_____________________|

28 years, 7 months

9
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Anyone ever?

by thedm＠sunflower.com

Anyone ever run STiK on an ATARI ST? I have it up and it works, but I can't seem to get a DNS resolution, If i manually put in IP's its works and connects, say to IRC. But I can't get it to resolve names against IP's I have the entries in Default.cfg that the docs SAY that works, but it dosn't appear to. Line is NAMESERVER x.x.x.x and NAMESERVER0 x.x.x.x obviously, in my configuration I have the ip's for our nameservers.

28 years, 7 months

2
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Wait! Crossed cable! It booted, it booted!

by dseagrav＠bsdserver.tek-star.net

It booted! It's up! I have no idea what to do! And it IS RSTS/E!

28 years, 7 months

2
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Old arcade game?

by sinasohn＠crl.com

At 08:50 PM 8/21/97 -0500, you wrote: >flakes all over it from that age. Anyway, it was simply a black and white >game in which you control a motorcycle (a white dot or line) down the >road, again white lines, and try not to die. A very simple game. I also There was a game called "Night Driver" that was similar. It too was simple graphically, with a pair of dotted(?) lines scrolling downward to indicate the edge of the road. It would bend right and left -- curves -- and you had to steer between them. Had a real steering wheel and an accellerator pedal, possibly a high-low gear shift as well. I know there was a sit-down model, there may have been a stand-up version as well. It was incredibly simple, especially compared to some of the high-end, need-a-pentium-and-3d-video-card games out today, but it was actually a lot of fun. --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad sinasohn(a)crl.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.crl.com/~sinasohn/

28 years, 7 months

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Multiple Topics...

by allisonp＠world.std.com

<> Getting _new_ 8" drives is next-to-impossible < <No, not really. I just call up California Digital (310-217-0500, <or look at http://www.cadigital.com/) and FedEx brings the drives There is that. Myself I only have two sets of 8" to worry about one sa800 on the cp/m crate (rarely used and that drive is generally powered off) and my RX02s. Around here 02s are easy to find and I have spares for everything on it. I also hardly use that, noisy, I have hard drives, rx50 and rx33 as well. It's there for compatability. Nearly every system I have has been migrated toward 3.5" drives or up scaled 5.25s where possible. Exceptions are the Vt180 where compatability is required and the odd 360k floating around. The PDP-11 and vax DEC hardware it's not a choice for the most part and I keep them compatable. Three goals are accomplished, single 3.5" media, more storage than 8 or 5" formats and power down with media in place is not problematic. All 3.5" PC/PS2 compatable drives have write interlock on power fail. One unique thing I've done is to embed two PS2 720k 3.5" floppies inside a kaypro as 782k hard disks. They are drives A: and B:. They have power fail but, their bezels are specific to the IBM case. They can be found real cheap as a result and are a deal. Using Advent turborom in the 5.25/96tpi mode puts 781k on them. By putting them on a bracket inside the case they are captive and amount to a slow small hard disk from the user side. For CP/M use 1.5m of on line storage not including the 3.5<782k> and 360k 5.25 on the front pannel makes for a fairly roomy system. That system has a 2meg ramdisk so it can boot and copy the floppies to ramdisk for speed. Advantages include if the media fails pop the cover and put in a new disk and it's less likely to crash the disk if dropped. The only other storage I keep around is the TU58 dectapeII as it's serial and can be plugged into anything that can do RS232/423. At 256k a cart its not big or fast. What I'd like to find out how to do is use the floppy interfaced tapes for non-PC systems. These drives in the smaller storage sizes can be found cheap and even new ones aren't too expensive. Allison

28 years, 7 months

5
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Darn! Darn darn darn! RA81 problems continue: No O/S?

by dseagrav＠bsdserver.tek-star.net

I plugged everything up, and fired her up. b du and b du0 hit the harddisk for a second, then it returns to the ODT prompt. Does this mean no O/S?

28 years, 7 months

1
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9-track tape drive: What is this?

by fmc＠reanimators.org

Tony Duell <ard(a)p850ug1.demon.co.uk> writes: > [IEEE488/centronics/whatever connectors] > >From the HP-97S user manual (I have one on loan for a demonstration in a > few weeks...) > > 'Your peripheral device is connected to the HP-97S interface with a > standard 25-pair telephone connector (Amphenol 57-30500 or equivalent)' Ah. Yes, we used to call the 50-pin version a telephone or telco connector because, well, that's where we used to find most of them: going to a 5-line office phone, or on the side of a punch-block. But HP-IB and Centronics printer connectors didn't have enough pins to be called telco connectors. Besides, HP-IB used bigger, stackable screws, and Centronics printer connectors had those ears. It wasn't 'til I saw the 50-pin Centronicsish SCSI connector that I started to get confused. -Frank McConnell

28 years, 7 months

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PDP11/15

by Philip.Belben＠powertech.co.uk

Since no-one seems to have answered this, I shall put my bit in. I am no PDP expert, though. > After all the discussion here recently about collecting PDP11's I have > located one which I intend negotiating for. I haven't actually seen it yet. > > It is a PDP11/15, a model number that I haven't seem mentioned. Is there a > listing somewhere on the web that describes the various models as there is > for PDP8's ? The 11/15 and 11/20 were two variants of the original PDP11 CPU, which came out in 1970 (I think). The processor itself may have been called the KA11, but I am not sure of this. The difference between them was system configuration, AFAIK. > This one apparently dates from about 1970, and is probably incomplete. > There was talk of a rack, the PDP11/15 itself, some RKO5 disk drives and > some boxes labelled PDP11/10 which may be other computers. There is no > other IO device other than front panel switches. PDP 11/10 is usually an 11/05 variant (again the difference is configuration of the system), dating from c. 1974 (and full of TTL - 74XX device codes and 74XX date codes can be very confusing). But I have heard rumours of an 11/15 variant of that name. No doubt Allison, Tim or Tony will tell you all about this. One day I shall get my 11/10 working... > Could this equipment be used with a more recent terminal? I have no chance > of finding a card reader or teletype but have access to several VT220's. AFAIK it will require a current loop interface. Some quite late terminals had this feature - I use something called a Westward Graphics Terminal. Philip.

28 years, 7 months

1
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8" disk alignment

by dcoward＠pressstart.com

> Tony Duell <ard(a)odin.phy.bris.ac.uk> said: >5.25" and 3.5" alignment disks are still available (but expect to pay $100 >a time...). I can't find 3" (Amstrad, etc) or 8" alignment disks anywhere, >alas... I don't know if anyone's responded to this yet. (I'm behind in my mail again). But you might try Accurite Technologies Inc. here in the bay area. They're at http://www.accurite.com When I talked to them about a year ago, they said they believe that they are the only ones in the world still making 8" alignment disks. They sell both 8" analog alignment diskettes and 8" digital diagnostic diskettes. Don't quote me on this but, I seem to remember them saying that the 8" diskettes were $65 each. ========================================= Doug Coward dcoward(a)pressstart.com Senior Software Engineer Press Start Inc. Sunnyvale,CA =========================================

28 years, 7 months

1
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RA81 problem found!

by dseagrav＠bsdserver.tek-star.net

Ha! Got it! The drive READY light had one of the little posts broken off, that's why it never booted! It was drive 1! But I have to wait till I'm off the clock & my boss leaves before I can test the theory...

28 years, 7 months

1
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Computers (fwd)

by allisonp＠world.std.com

<> > Switch 1-2 tells it (both PC and XT) about the presence of the coproces <> > (I do, btw, have an 8087 in my collection...only one I've ever seen! Ev <> > rarer was the 8088 to 386 SX-16 upgrade board...the world's s-l-o-w-e-s <> > 386.) <> <> K00L. How long does it take to install Linux using that? :-)} I have an xt class machine with an inboard386 and linux is not possible as it only has 1meg of ram and the expansion is off the inboard. FYI the inboard386 was an 386SX/16 compared the the v20 at 4.77mhz it's fast! Allison

28 years, 7 months

1
0
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hhc eproms (fwd)

by dastar＠crl.com

Here's something from our friend Mike. Please send all replies to him. Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass ---------- Forwarded message ---------- Date: Fri, 22 Aug 1997 10:25:30 -0400 (EDT) From: Mikeooo1(a)aol.com To: dastar(a)crl.com Subject: hhc eproms Sam, I didn't hear from you before so can you let me know if there is going to be any need for HHC eproms? I am sitting on approx. 5000 of them which I have received a salvage offer of $1.25/lb for and I'm probably going to take,but I don't want to put anyone in a position where they are requested but now not available like before with the HHC's.So I would appreciate you letting me know. Thanks Mike

28 years, 7 months

1
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Computers (fwd)

by manney＠nwohio.com

> > > For Switch #1: > > For Switch #2 (some obscure combos not typed in) > > It seems to me that one of the sacred switches will put the machine into > an endless loop of reboots - just after the self tests, etc., the machine > would boot again. > > I did not know about this, and had a machine that had this "problem". A > trip to the library solved it. You guys may be talking about Switch 1-1 -- which, for an XT, will do this. Switch 1-2 tells it (both PC and XT) about the presence of the coprocessor. (I do, btw, have an 8087 in my collection...only one I've ever seen! Even rarer was the 8088 to 386 SX-16 upgrade board...the world's s-l-o-w-e-s-t 386.) I'd like to add an 8086 motherboard to my collection...anyone have one?

28 years, 7 months

3
2
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Tandy Model I Problems

by rcini＠msn.com

Well, today I decided to repair the power supply on the Percom floppy that I have for my pair of Model I's. Then, I decided to see if a complete keyboard-EI-floppy setup worked. Therein lies the problem... It seems like each CPU (a 4k and a 16k Level II) won't recognize either EI (a Rev 0 and Rev 1). Both EI's have 32k of RAM. All that I get on the screen is garbage. I'm turing the EI on first, then the CPU. I've also tried two types of EI cables, one buffered and one not. I can tell which cable goes to which EI because the floppy drive will initialize only with the right combo. It sounds like I have two bad EI's, but the thing that throws me is that the floppy interface performs a floppy reset. Does anyone have any clue?? Also, how does one refer to the floppy drive in a BASIC statement? For example, if I want to load a program, do I type LOAD "0:test.bas"? I have no manuals for these machines, and it's been a loooong time since I used one of these. Also, on an unrelated note, the Altair scans are in, but I'm waiting for Bill Whitson's address so that I can Fedex a tape to him. Does anyone have it?? Rich Cini/WUGNET <rcini(a)msn.com>

28 years, 7 months

4
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FW: Tape drives available

by kyrrin2＠wizards.net

If any of you have need of a very decent 525 MB SCSI tape drive, check with this fellow. This is an excellent price for what he describes, though he does not appear to be aware that DC6525 tapes exist. ;-) -=-=- <snip> -=-=- I have the following for sale: Archive Viper 2525 25583 Rev 002 SCSI tape backup units. Comes in external enclosure with Unisys Tape Streamer marked on it. Uses DC-6150 (150 MB uncompressed) and DC-6250 (250 MB uncompressed) tapes. Tested with Novastor Tape Backup and Cheyenne Tape Backup and Seagate Backup Exec. Novastor has software compression to double capacity. Works great. The unit has a SCSI selector switch and two large 50 pin SCSI connectors on back of unit. $50 + shipping. Thanks, James (jevans2(a)sisna.com) -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- UNSOLICITED COMMERCIAL E-MAIL SUBJECT TO $500.00 PROOFREADING FEE PER ITEM SENT. SENDING ME SUCH UNSOLICITED ITEMS CONSTITUTES UNDERSTANDING AND ACCEPTANCE OF THESE TERMS. Bruce Lane, Sysop, The Dragon's Cave (Fido 1:343/272) http://www.wizards.net/technoid "...Spam is bad. Spam wastes resources. Spam is theft of service. Don't spam, period..."

28 years, 7 months

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7-pin VIC PS Connector

by rcini＠classic.msn.com

Is the 7-pin power connector on certain VIC-20's the same as the power supply on the C64?? I just got a couple VIC's of this type with no power supplies. TIA! +============================================+ | Rich Cini/WUGNET | <rcini(a)msn.com> +============================================+

28 years, 7 months

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9-track tape drive: What is this?

by fmc＠reanimators.org

"Daniel A. Seagraves" <dseagrav(a)bsdserver.tek-star.net> writes: > The front panel on the box says: > HP 1000 A900 > HEWLETT PACKARD. Fairly late-model HP 1000, replaced by the A990 in 1991 I think. I don't know that much about them but think they are descended from the HP 2100 and 21MX processors used in earlier 1000s (and would like to find out more, so corrections are invited). What are the first four digits of the serial number? That will give you some idea of its age; first two digits are probably year less 1960, next two digits are week-of-year. > It says "hp 7970E" It is a 1600 BPI 9-track drive. Is yours in a lo-boy cabinet with the supply and takeup hubs side-by-side, or in the tall cabinet with supply mounted above takeup? Mine is a lo-boy but I have used both. > Buttons a re LOAD, REWIND, ONLINE, RESET, 0, 1, 2, 3, OFF > Connector is a small printer-plug looking thing (Like the plug on your > printer, but smaller. Sounds like HP-IB all right. Note that not all 7970s are. > I do have a scratch tape, how does one get the tape into these? As Tony said, there should be a diagram that shows the tape path. Pop the lever in the center of the supply hub up, and slide your tape on. Leave the lever up for now; you will be pulling tape off the supply reel and if the hub were engaged you would have to turn it too. Pull the tape off the supply reel, threading it around the stationary post, then the tension arm, then the heads (lift the cover over the read/write head to thread the tape through), then the other tension arm, then the other stationary post, then onto the takeup reel. Hold the tape against the takeup reel -- stick your finger through the little hole -- and make a turn or two of the takeup reel to get the tape firmly held on the reel. Push the lever on the supply hub down to engage the supply reel. Now you can push LOAD to get the tape drive to scan for the load point. If it just keeps going and going then there is a problem with the light/sensor assembly. ONLINE puts the drive on-line. Won't work unless the tape is loaded. RESET is "stop what you're doing and take the drive offline". REWIND is "rewind to load point or 'til the tension arms lose tension because the tape came loose from the takeup reel". 0, 1, 2, 3, OFF switch the drive's unit number; OFF is effectively offline. Note that unit number may not have an obvious relation to the system's device name or number. I don't know much about RTE (the OS on the 1000s) but under MPE on classic 3000s it was a component of either the DRT number or the unit number, which were in turn referenced by the logical device number. > Any info is appreciated. Hope this helps, if you have more questions feel free to ask. -Frank McConnell

28 years, 7 months

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Old arcade game?

by kaikal＠MICROSOFT.com

If you jumped buses, it was Atari Stunt Cycle (1976). Basically a clone of Atari Night Driver (http://www.pipeline.com/~jhardie/gallery/coinop/nightdrv.jpg), which I believe owns the title as the original "black & white dots" driving game. I don't recall what Atari's earlier entry (the first driving game) called Gran Trak looked like. Another well-known example was 280ZZZAP. Kai > ---------- > From: Cord Coslor > Reply To: classiccmp(a)u.washington.edu > Sent: Thursday, August 21, 1997 6:50 PM > To: Discussion re-collecting of classic computers > Subject: Old arcade game? > > Does anyone happen to remember a very old 'arcade game' that foes > something like this. I remember playing this in an airport probably 10 > years ago, although the game must have been older. It was encased it a > type of stand-up motorcycle. I remember it as being red with those > sparkly > flakes all over it from that age. Anyway, it was simply a black and > white > game in which you control a motorcycle (a white dot or line) down the > road, again white lines, and try not to die. A very simple game. I > also > remember you only had to hit the coin slot to get it to play. > > Does anyone know what this was called or any other memories fo this? > > Thanks a ton, > > CORD > > //*=================================================================== > ==++ > || Cord G. Coslor P.O. Box 308 - 1300 3rd St. Apt "M1" -- Peru, > NE || > || (402) 872- 3272 coslor(a)bobcat.peru.edu > 68421-0308 || > || Classic computer software and hardware collector > || > || Autograph collector > || > ++==================================================================== > =*// > >

28 years, 7 months

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RESCUE NEEDED! Decent MicroVAXen in UK!!!

by kyrrin2＠wizards.net

Heads up to our UK readers! Fellow's got a decent MicroVAX system that sounds like it would be free for the picking up. Heck, I'd pick it up if I were in the UK... If you can help, PLEASE get in contact with this fellow post-haste. Thanks! -=-=- <snip> -=-=- Date: Thu, 21 Aug 1997 20:57:09 +0100 To: port-vax(a)netbsd.org From: Robin Birch <robin(a)falstaf.demon.co.uk> Subject: uVAX 2 in uk X-Mailer: Turnpike Version 3.03b <YSkKJATYm0AxAbv6xwlBrCeVCW> Sender: port-vax-owner(a)NetBSD.ORG Delivered-To: port-vax(a)NetBSD.ORG Dear All, A week or so ago I advertised a uVAX 2 with 2*RA81, TK50, 8MByte, KDA50 offers please Nobody replied, does this mean that nobody wants it and I've got to throw it away or does some one want to give this box a home. Offers please, buyer collects. Robin Robin Birch robin(a)falstaf.demon.co.uk M1ASU Old computers and radios always welcome -=-=- <snip> -=-=- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Sysop, The Dragon's Cave BBS (Fidonet 1:343/272) (Hamateur: WD6EOS) (E-mail: kyrrin2(a)wizards.net) http://www.wizards.net/technoid "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..."

28 years, 7 months

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Computers (fwd)

by manney＠nwohio.com

Um...not quite. Please see my post. ---------- > From: classiccmp(a)u.washington.edu > To: Manney > Subject: RE: Computers (fwd) > Date: Monday, August 18, 1997 9:30 PM > > >From the handy "Programmer's PC Sourcebook" by Thom Hogan, Microsoft > Press, ISBN 1-55615-321-X: > > For Switch #1: > > Switch 1: number of drives, ON=drives installed, OFF=no drives (see > switch 7/8) > Switch 2: Not used, must be ON > Switch 3 & 4: Memory on system board > ON ON = 16K (PC1) or 64K (PC2) > OFF ON = 32K (PC1) or 128K (PC2) > ON OFF = 48K (PC1) or 192K (PC2) > OFF OFF = 64K (PC1) or 256K (PC2) > Switch 5 & 6: Display adapter > ON ON = no adapter > OFF ON = CGA 40 > ON OFF = CGA 80 > OFF OFF = MDA or >1 adapter > Switch 7 & 8: Floppy drives > ON ON = 1 drive > OFF ON = 2 drives > ON OFF = 3 drives > OFF OFF = 4 drives > > For Switch #2 (some obscure combos not typed in) > Switches 1-5: Memory Installed > ON ON ON ON ON = 16-64K (Switches 3 & 4 control total memory) > OFF ON ON ON = 96K (for this and below switches 3 & 4 should be OFF) > ON OFF ON ON ON = 128K > ON OFF OFF ON ON = 256K > ON ON ON OFF ON = 320K > ON OFF ON OFF ON = 384K > ON OFF OFF OFF ON = 512K > ON OFF ON ON OFF = 640K > Switches 6-8: Not Used, must be OFF (switch 7 reserved for 8087 on PC2) > > Kai

28 years, 7 months

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Computers (fwd)

by manney＠nwohio.com

> Hi there. I noticed in your collection that you had an IBM PC; I'm > assuming it's a 5150. Do you have a manual for it that might list the > jumper and dip switch settings on the motherboard, and if so, could you > tell me what they are? Thanks. The 5150 (i.e. the PC) has 2 switchblocks on the motherboard. The one nearest the power supply Block 2) controls the amount of memory addressed: Mem Switch number (KB) 1 2 3 4 5 6 7 8 ------------------------------------- 16 1 1 1 1 1 0 0 0 32 1 1 1 1 1 0 0 0 48 1 1 1 1 1 0 0 0 64 1 1 1 1 1 0 0 0 96 0 1 1 1 1 0 0 0 128 1 0 1 1 1 0 0 0 160 0 0 1 1 1 0 0 0 192 1 1 0 1 1 0 0 0 224 0 1 0 1 1 0 0 0 256 1 0 0 1 1 0 0 0 288 0 0 0 1 1 0 0 0 320 1 1 1 0 1 0 0 0 352 0 1 1 0 1 0 0 0 384 1 0 1 0 1 0 0 0 416 0 0 1 0 1 0 0 0 448 1 1 0 0 1 0 0 0 480 0 1 0 0 1 0 0 0 512 1 0 0 0 1 0 0 0 544 0 0 0 0 1 0 0 0 576 1 1 1 1 0 0 0 0 608 0 1 1 1 0 0 0 0 640 1 0 1 1 0 0 0 0 0=Off 1=On Switch block 1 is farther from the power supply Switch 1 -- PC -- 0=Boot from Floppy 1=Do not boot from floppy XT -- 0=Normal POST (power On Self Test) 1=Continuous POST (i.e., won't boot) Switch 2 -- 0=Math coprocessor installed 1=Math coprocessor not installed Switches 3-4 -- Filled memory banks (on motherboard) 0 0 =All 4 banks 1 0 = Banks 0, 1, and 2 0 1 = Banks 0 and 1 1 1 = Bank 0 only Switches 5-6 -- Video Adapter 0 0 = Monochrome (MDA) or Hercules with no onboard BIOS 0 1 = Color (CGA) 40 chars x 25 lines 1 0 = CGA 80 chars x 25 lines 1 1 = Video Adapter w/ onboard BIOS Note that the PC will support a monochrome adapter at the same time as another type. Switches 7-8 -- Floppy Drives 1 1 = 1 Floppy Drive 0 1 = 2 FDD 1 0 = 3 FDD 0 0 = 4 FDD Hard drive is taken care of by the adapter card. Please e-mail me with any other questions. manney(a)nwohio.com

28 years, 7 months

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Pertec cabling

by kyrrin2＠wizards.net

I can't speak for the 7970, but I can tell you that Pertec formatted connections are usually a pair of 50-pin (25 to each side) PC edge paddles. I've seen a few (very few!) devices, specifically an old Unibus tape controller, where one connection was a Berg 50-pin header and the other was an edge paddle. From your description, it sounds as though the drive may not have its own formatter built in, outside of the HPIB interface section. I could, however, be mistaken (read: I'd need to see the drive). -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Sysop, The Dragon's Cave BBS (Fidonet 1:343/272) (Hamateur: WD6EOS) (E-mail: kyrrin2(a)wizards.net) http://www.wizards.net/technoid "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..."

28 years, 7 months

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uVAX 2 in uk

by allisonp＠world.std.com

Cross posted without permission but considering all... Please can a UK person rescue this? That is a very nice MV-II system. <Delivered-To: port-vax(a)NetBSD.ORG <Status: R < <Dear All, <A week or so ago I advertised a uVAX 2 with 2*RA81, TK50, 8MByte, KDA50 <offers please < <Nobody replied, does this mean that nobody wants it and I've got to <throw it away or does some one want to give this box a home. < <Offers please, buyer collects. < <Robin <Robin Birch robin(a)falstaf.demon.co.uk < <M1ASU Old computers and radios always welcome <

28 years, 7 months

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DEC DOC LESS

by allisonp＠world.std.com

<find enough boards to get an H-11 up and running. <I was wondering if any of the DEC experts out <there could identify the purpose for any of these <boards.(Names come from whats written on each board) <They all appear to be Q bus. < < M7940 or M7946 RXV11 LSI 11 Interface (Half width) RX01 floppy controller for q-bus (includes h-11). You would need the RX01 disk sustem to match it. < M8340 Decoder and Step Counter (Full width) < M8341 Multiplexers and Timing Generator (Full width) < < These two boards are linked togather with a <connector across the top of the boards. KE-8E extended arithmetic element for PDP-8E < M8639 RDRX Disk Controller (Full width) AKA RQDX2, this is a Qbus (also h-11)hard disk and floppy controller that supports st506,st412,st225, st251,q540 and RX53(1325) mfm hard disks and RX50 dec floppy. It's connector goes via a50 pin cable to a M9058 signal distribuition board and from there to the disks. The rx50 is a double density single sided 96tpi drive unique to DEC. The storage is about 409k per spindle (there are two). It is the only floppy that the RQDX firmwhere knows. You may be able to fake it into using one side of a 1.2m 5.25 floppy strapped to spin at 300rpm. < M7957 Asyn Mux (Full width) Qbus DZV-11 multi port serial IO. < M4002 ? (Half width) Qbus KW-11c programmable real time clock. < M8189 KDF 11-B (Full width) PDP-11/23B ++++ while this may work in a H11 box it will nto support q22 unless the backplane has had the lines wired in (h-11 was Q-16). This is the most common Q-22 (Qbus 22bit addressing) PDP-11 cpu and is a good performer. It has two DL compatable serial ports (console and user) along with a generic boot and ODT console. The standard chip complment is the CPU (two surfacemount chips on it) and MMU. Optional were the CIS Commercial Instruction Set, FIS floating point Instruction Set and the FPP-11 that implments the FIS-11 in hardware. < M8043 ? (Half width) Q-bus DLV-11j 4 DL serial ports on one card. < I have the processor board covered. I have about half <a dozen M7264 LSI-11 processor boards. Basic LSI-11/2 < But, I could also use a list of commands for the resident <monitor. Damn, I can't even remember what it's called. ODT, they are fairly simple: @00000G <start execution at 00000 @00000/ 12345 <display contents of location (00000) the linefeed key will cause the next location to be opend and the contents displayed @00000/ 12345 <lf> @00001/ 02010 <cr> @ Entering data.... @00000/ 12345 001040 open a location, it's contents are displayed, enter new contents, CR to close or LF key to advance to next. @P when typed at the @ (monitor prompt) the cpu will continue execution at the current address (assuming there were no errors to cause a monitor trap). $ or R Open a register for display or change. $S or RS opens the processor status register. This should help. Allison

28 years, 7 months

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DEC DOC LESS

by dcoward＠pressstart.com

I dug these boards out of a closet last night to find enough boards to get an H-11 up and running. I was wondering if any of the DEC experts out there could identify the purpose for any of these boards.(Names come from whats written on each board) They all appear to be Q bus. M7940 or M7946 RXV11 LSI 11 Interface (Half width) I may have written down the wrong board number here. This, I'm 90% sure is the serial interface board I'll need to connect a terminal to the system. At least it looks like one I had on my LSI-11 many moons ago. If it is, I sure could use the pin-out for the connector and baud rate settings. M8340 Decoder and Step Counter (Full width) M8341 Multiplexers and Timing Generator (Full width) These two boards are linked togather with a connector across the top of the boards. M8639 RDRX Disk Controller (Full width) Is this a hard drive or floppy controller and if its a floppy controller, is it single or double density? M7957 Asyn Mux (Full width) M4002 ? (Half width) M8189 KDF 11-B (Full width) This appears to be a processor board with only 3 of the 5 sockets filled. M8043 ? (Half width) I have the processor board covered. I have about half a dozen M7264 LSI-11 processor boards. But, I could also use a list of commands for the resident monitor. Damn, I can't even remember what it's called. Thanks for any help, ========================================= Doug Coward dcoward(a)pressstart.com Senior Software Engineer (PSX and Saturn video games) Press Start Inc. Sunnyvale,CA http://www.best.com/~dcoward/museum =========================================

28 years, 7 months

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Harris flyback transformers for H192 terminals:FS

by dseagrav＠bsdserver.tek-star.net

My boss is getting rid of a bunch of these. New and used. $35 apiece new, the used ones are $10. He's trying to clean out the back room. Can anyone use these? We have around 50 new, and 500 used ones.

28 years, 7 months

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Chip

by dseagrav＠bsdserver.tek-star.net

Found a chip in my mailbox today: Z8400AB1 Is this the Z80 CPU? Not sure who put it there... Doesn't look toasted... No bent pins... It may be good! Does it have any useful purpose by itself?

28 years, 7 months

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PDP-8 docs

by allisonp＠world.std.com

< Yes , I giggled thru the rest of the ng posts, many of which are <unintelligable to me. I keep hoping that enlightenment will <miraculously happen. I have been monitoring this ng for a while <and picking up snippets of info. It occurred to me that the <PDP8/e/f/m maintenance manual (vol 1 } that I had acquired and <kept since my course on dig. electronics in 83 because it had a <beautiful description of the fetch sequence in processors might be <of value in this group. If it's quite available "nevermind" that is an interesting doc. While it may have been common at one time may simply were tossed making them scarce (or still on a shelf somewhere). I'd be interested as I still like hacking with PDP-8s. Allison

28 years, 7 months

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Tandy Model I Problems

by dougdu＠MICROSOFT.com

Rich, Hmmm... let's see if I understand you correctly. You have a TRS-80 Model I with EI and floppy drive and when you turn the system on, the screen fills with random garbage? I have one sitting here in my office and that appears to be normal behavior if there is no bootable disk in drive 0 when the computer is turned on or reset. Try holding down the BREAK key and hitting reset button to enter ROM BASIC. As I recall, if the EI is connected then the system checks the BREAK key and jumps to BASIC if it's pressed, otherwise it reads the first sector >from the disk and executes it. All this happens before video RAM is initialized so the screen is filled with trash. Hope this helps, - Doug

28 years, 7 months

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9-track tape drive: What is this?

by sinasohn＠crl.com

At 11:18 AM 8/19/97 -0700, you wrote: >Now you can push LOAD to get the tape drive to scan for the load >point. If it just keeps going and going then there is a problem with >the light/sensor assembly. It could also mean that you wound the tape onto the take-up reel past the load point, or that the tape didn't have one (i.e., it was cut/broken off.) Try re-loading the tape, after checking for the load point thingy (a little silver piece of something on the tape.) --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad sinasohn(a)crl.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.crl.com/~sinasohn/

28 years, 7 months

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9-track tape drive: What is this?

by 107765.1161＠compuserve.com

Message text written by INTERNET:classiccmp@u.washington.edu >BTW, what's the correct name for that series of connectors? We tend to call them 'Amphenol Connectors' in the UK (while realising that Amphenol make a wide range of different connectors). I've also seen them called 'Centronics Connectors' (after the common use for the 36 pin one I guess), IEEE (or IEEE-488) connectors (after the common use for the 24 pin one) and 'Telco Connectors'. I think the last is what HP call them.< They are generically called "Centronics connectors" in the U.S., being 36 pin, 24 pin, or whatever. The HP connectors are called IEEE-488, since that is the standard they follow; never heard them called "Telco connectors" by HP or anyone else. Gil Parrish

28 years, 7 months

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Apple?

by foxvideo＠wincom.net

I purchased a batch of old micros which included 3 Apples, 1 ][E and two that are not identified. The motherboards are longer than on the "E" and extend under the keyboard. The keyboard has a white key labled upr and lwr case, pwr. in the lower left corner, and the rear of the case has U shaped cutouts instead of the type of openings on the "E" and "+". I havent been able to find "Apple" on the case or motherboard but the power supply seems identical to that in the "E" and "+". Can anyone suggest what I have? Thanks Charlie Fox

28 years, 7 months

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video games

by dhq＠juno.com

While scouring the garage sales this weekend I found 2 old video games, an Atari Pong and a Magnavox Odyssey. They both work, and I could NOT pass them up at the sellers asking price! Hopefully someone else collects these older games. If anybody knows of a list or web site I would appreciate the info. P.S. My T/S 1000 hasn't been sold yet, I guess it is not yet a collectors piece. Regard, David Quackenbush dhq(a)juno.com

28 years, 7 months

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9-track drive: What is it?

by kyrrin2＠wizards.net

Re: the 9-track thread on the HP 7970: Mention has been made that it seems to have an HPIB interface. I ran into the same thing with an HP7974 drive that I acquired from Teltone here in Washington state. However, I also found that the HPIB interface consisted of a removable cage with three cards and its own power supply. Once this subassembly was removed, the drive itself appeared to be a standard Pertec interface. I have yet to actually try it, but a pair of 50-pin card-edge connections sure look like Pertec to me. I will let the group know once I get a chance to actually try it. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Sysop, The Dragon's Cave BBS (Fidonet 1:343/272) (Hamateur: WD6EOS) (E-mail: kyrrin2(a)wizards.net) http://www.wizards.net/technoid "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..."

28 years, 7 months

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Drive Alignment (was: Multiple Topics...)

by sinasohn＠crl.com

At 05:55 AM 8/19/97 +0000, you wrote: > drive alignment for various disk drives (not even close to ready yet). Something to mention is to make copies of disks created on drives you plan to realign before realigning them. That is, if drive A is out of alignment and disk A was created on Drive A, make a copy of disk A (in drive A) onto disk B in Drive B (where drive B is a known, well aligned drive.) Otherwise, when you get all your drives working fine, you won't be able to read any of the disks created when they were out of whack. --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad sinasohn(a)crl.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.crl.com/~sinasohn/

28 years, 8 months

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What's an M7165?

by kaikal＠MICROSOFT.com

Does anyone else find this hilariously funny? > ---------- > From: Tim Shoppa > Reply To: classiccmp(a)u.washington.edu > Sent: Monday, August 18, 1997 5:29 PM > To: Discussion re-collecting of classic computers > Subject: Re: What's an M7165? > > > What's an M7165? > > One half of a KDA50. The other half is a M7164. > > Tim. >

28 years, 8 months

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9-track tape drive: What is this?

by fmc＠reanimators.org

Tony Duell <ard(a)odin.phy.bris.ac.uk> wrote: > > Sounds like HP-IB all right. Note that not all 7970s are. > > It's a fairly safe bet IMHO that anything HP after about 1975 with that > connector is HPIB. There are probably exceptions, but I've not come across > many (any?) Any time I've seen that connector on HP gear it was for HP-IB. And the 7970s that aren't HP-IB don't have that connector. Instead I think they have a card-edge connector or something to mate with a card-edge connector (on the end of a long cable that you're supposed to drag back to the interface in the CPU cabinet). The 7970 is not a new drive; HP made and sold them for a number of years. The first HP 3000 I ever saw (a series II) had one, and that was in 1977. I'm pretty sure there was some way to hook it up to a 2100 (stand-alone, or in an instrument controller or 1000/2000 configuration) as well. The HP 3000 series II and series III did not use HP-IB. The first HP-IB 3000s were the series 30 and 33. When HP started shipping new HP-IB peripherals that were bigger/better/faster[1] they also had the "Starfish" for the series III. That was a small card cage mounted in its own 19" cabinet, reportedly due to UL certification requirements, which provided a GIC (General I/O Channel aka HP-IB interface) and somehow interfaced it to the series III. At a previous place of employment, we had a series III when I started. It eventually (1984) got upgraded to (box swapped for) a series 64, which supported HP-IB somewhat more directly. We had had a Starfish on the III, but had only used it for a 7933 disc -- the 7970E tape drives were hooked up to a MAGNETIC TAPE INTERFACE card in the III. Part of the upgrade was the removal of some interface electronics from the bottom of the "master" 7970E and its replacement with some new interface electronics that spoke HP-IB. There was a similar replacement for the 7925 disc drive too. > BTW, what's the correct name for that series of connectors? We tend to > call them 'Amphenol Connectors' in the UK (while realising that Amphenol > make a wide range of different connectors). I've also seen them called > 'Centronics Connectors' (after the common use for the 36 pin one I guess), > IEEE (or IEEE-488) connectors (after the common use for the 24 pin one) > and 'Telco Connectors'. I think the last is what HP call them. Doggone if I know. We always called them HP-IB connectors. So did the HP CEs. We were pretty much a 3000 shop with not much non-HP equipment outside of the modems and furniture, certainly nothing else that tried to use that connector. Well, we did for a while have a Univac 1004 RJE station, but we never tried to plug it into the 3000 and I can't remember ever trying to do much with it other than feed it paper when it ran out. -Frank McConnell [1] the ones I am thinking of are the 7933 disc drive (404MB washing machine), 7976A tape drive (6250BPI 9-track, streaming and start-stop, OEM'd from someone else (STC I think)), and 2680A laser printer; I think these were the only peripherals supported for connection via Starfish

28 years, 8 months

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Multiple Topics...

by allisonp＠world.std.com

<Yes, I'd realised that. I was planning on making a circuit that triggered <off the index pulse and recorded 'bursts' of (say) 250kHz pulses on the <disk. A bit of logic would let me record a track offset towards the edge <of the disk, twiddle the micrometer to move the head to the same offset <towards the spindle and then record bursts between the ones I'd just put <down. Now align the target drive so that both types of burst are replayed <at the same amplitude. doesn't work, you need the narrower write head. What you will see is the additive components of the signals where the head overlaps the tracks. The can be the sum or the signals, if not in sync there will also be differences due the phases at a given instant. Also do not discount the effects of the tunnel erase portion of the head slicing off the adjacent offset tracks. <The older SA800's used entirely standard logic, so it's not worth taking <parts from an old one. SA850's used custom chips in the read/write <circuit, and later SA800's (according to my service manual) used one big <custom chip :-(. I guess then you have to get spares from old drives. Sometimes it's easier to swap a known board that troubleshoot. <Getting _new_ 8" drives is next-to-impossible, and if you use a True but, there are used and then there are USED. The later being one thats seen umpty years of 24x7. <The less said about that SA400 the better.... Yep! Allison

28 years, 8 months

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Looking for Doug Spence

by dastar＠crl.com

Doug Spence, please e-mail me so I have your current e-mail address. I tried e-mailing you the images of the Apple3 system disks and it bounced. If anyone else wants ShrinkIt archives of the Apple /// system disks let me know and I'll e-mail them off to you. You'll need an Apple that can run ShrinkIt (//e, //c, //gs, ???) and a copy of ShrinkIt (can be found on the net, public domain AFAIK) to transfer them to 5.25" floppies. Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass

28 years, 8 months

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Multiple Topics...

by allisonp＠world.std.com

<> I knew about that too, Those disks is too far expensive for few fixes <> run to pay off in due time. :) < <It's not that bad. You only need 4 disks total - one of each size. They're <no more expensive than the other test gear you really should have. < <If somebody could find a UK source of 8" alignment disks then I'd buy one <_now!_ Dec diagnostic disks that havent been rewritten are generally very close to nominal alignment. <I was planning on removing the pin altogether and letting the head <carriage move freely over the leadscrew. Then fit a micrometer head and a <spring to pull the head assy agains the end of the micrometer. I should be <able to get about 1" of calibrated head movement. While you can do this there is one problem. Alignment disks are recorded with a narrower than normal trackwdith and also stagger tracks (recorded with offset either side of true) for alignment use. Another tool you need is a source of 125/250/500khz pulses that conform to FM timing (single density) for writing patterns. This is something you can build out a handful of counters and a 4mhz clock osc. Over the years I've found that if the drive needs alignment it's wise to look for other problems like spindle and motor bearings that are tired or head to actuator wear that will make for sloppy operation. Head alignment can signal other problems. I retired a SA800 for spindle bearings because the thing would not reliably read (had a new in the box spare). Generally I've found that it's best to put aside those drives in favor of a better one stealing the logic from it as needed. The only time I would fix it is when there is really no other choice. Unless doing a museum style restore I've found some drives are better dumped (sa400s in general) in favor of other better drives of the era. Allison

28 years, 8 months

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This Weekend's Finds

by Philip.Belben＠powertech.co.uk

> I can get lots of TI 99 items, tell what you are looking for ?? Thanks, John. I am looking for: Cartridges (I have none), preferably not of arcade-style games unless particularly significant Manuals, in particular pinout and levels of video port so that I can connect a monitor of some description... Also, details of what sort of joystick I need to connect... Philip.

28 years, 8 months

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Weekend Finds

by 107765.1161＠compuserve.com

Message text written by INTERNET:classiccmp@u.washington.edu >A TI-99/4A (works) with RF Modulator, Joysticks, and 20 cartridges... $5.< Were you soliciting information on the TI? The joysticks aren't Atari-standard, so you're lucky those were in the package. Cartridge-wise, look through your haul particularly for Extended BASIC, Disk Manager II and Terminal Emulator II. The first is critical if you even get an Peripheral Expansion Box ("PEB"); the second is helpful if you get a PEB. The third is useful if you ever get the voice synthesizer (or of course, if you want to try a modem). If you have an Adventure cartridge, it won't do you much good unless you also got the accompanying tape. >Tho this isn't perfectly legit, I also picked up a Sony AC/DC (with 3 types of DC!) 5" color TV, which I plan to use as a monitor / portable monitor for one (or more) of my CoCo's. (The TI didn't like it... :-( < No clue on why . . . . >Question: One of the cartridges has a triangular picture-hanger rivited to the case... would this be some sort of store demo or something?< No way of telling, short of inserting it and seeing what pops up. Gil Parrish 107765.1161(a)compuserve.com

28 years, 8 months

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New Classic Computer Rescue List Location

by fmc＠reanimators.org

Isaac Davis <indavis(a)juno.com> wrote: > On the discussion of classic computers, does anyone have some Analog > magazines from the 86-87 time frame. I am trying to follow some of the > 'Boot Camp' articles (machine language tutorial). The problem that I > have is, they all build off of a beginning article, and you'll never > guess what I am missing. They are articles on player missile graphics in > machine language. If anyone has them, I would really appreciate getting > in contact with them. I believe what I am looking for is in the > July-October issues. I have November 86 - January 87, which are the last > 3 in the series. Time for a show of hands: how many of us are going to LoneStarCon in San Antonio over Labor Day weekend? Isaac, if you haven't found these by say 27 August, please let us know so we know to be looking for them in the huckster room.... -Frank McConnell

28 years, 8 months

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Computers (fwd)

by kaikal＠MICROSOFT.com

28 years, 8 months

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Computers (fwd)

by jrkeys＠concentric.net

If you e-mail me a fax number I can fax you the pages, there are 44 pages in the manual showing the many different settings. At 05:54 PM 8/18/97 -0700, you wrote: >Can anyone help this guy out? > >---------- Forwarded message ---------- >Date: Sun, 27 Jul 1997 20:28:19 -0500 >From: Jim Duchek <jimduchek(a)primary.net> >To: bill(a)booster.bothell.washington.edu >Subject: Computers > >Hi there. I noticed in your collection that you had an IBM PC; I'm >assuming it's a 5150. Do you have a manual for it that might list the >jumper and dip switch settings on the motherboard, and if so, could you >tell me what they are? Thanks. > > >Jim Duchek >jimduchek(a)primary.net > > >

28 years, 8 months

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Computers (fwd)

by bill＠booster.bothell.washington.edu

Can anyone help this guy out? ---------- Forwarded message ---------- Date: Sun, 27 Jul 1997 20:28:19 -0500 From: Jim Duchek <jimduchek(a)primary.net> To: bill(a)booster.bothell.washington.edu Subject: Computers Hi there. I noticed in your collection that you had an IBM PC; I'm assuming it's a 5150. Do you have a manual for it that might list the jumper and dip switch settings on the motherboard, and if so, could you tell me what they are? Thanks. Jim Duchek jimduchek(a)primary.net

28 years, 8 months

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This Weekend's Finds

by jrkeys＠concentric.net

I can get lots of TI 99 items, tell what you are looking for ?? At 10:28 AM 8/18/97 BST, you wrote: >> > I bought: A TI-99/4A (Not as lucky as Roger M - I paid L12 with no >> > joysticks, manuals or cartridges, but I did get the UHF thingy) >> >> Nice!!!.... > >Yes, my first TI computer (I have a broken calculator and a Silent 700 >or two...) > >> > But the real find: A British Telecom Microscribe for L1 >> >> Very nice... >> >> > This object is a solidly built sub-notebook (about 7 in square by 1 >> > thick) with a dinky keyboard and a palmtop-sized LCD. It has 32K of RAM >> > and 16K of ROM, and the processor is an Hitachi HD63A03XP single chip >> > microcomputer. >> >> Is that the only processor? It sounds as though it might be distantly >> related to a Thorn-EMI machine called a Liberator which had a 63-something >> for I/O and a Z80 running a CP/M like OS (or at least, that what I think >> is inside it - the ROM is (C) Digital Research, and running strings on a >> ROM image turns up some interesting stuff) > >'fraid so. Indeed, it is the only chip with >28 pins (apart from the >flatpacks on the back of the LCD). IC master, just to be perverse, >gives various 6301 and 6305 variants in that series, but nothing of 6303 >flavour. > >> Not so. A lot of machines use the NiCd as the smoothing component. HP >> certainly did in just about all of their more recent NiCd calculators (the >> ones that use the 8V 50mA AC charger). > >Interesting. I haven't found where the battery gets in, but the input >stage is something like: > > Diode >Ring --+--/\/\/-|>|-+-----+ > | 56R | \ > | |C / 82R > | |/ \ > +-/\/\/-+--| NPN / > | |\ | > _ |E | >Tip--+ Zener A +-----+--- +5V? to rest of machine (??) > | | > GND GND > >I would guess the battery could well do any smoothing downstream of the >regulator, but I'd still like to see some upstream of it! > >If the machine draws 60mA, minimum voltage at input is around 9V, >maximum around 13V, so I suppose I could try 10V and see what happens... > >> Some, like the Epson HX20 even used the fact that the voltage across the >> NiCd would go above 5V to limit the supply voltage to the chips. The > ^^^^^ >I take it you mean wouldn't > >> If you have an adjustable PSU, apply about 5V, and then crank it up >> towards 9V (I'd guess that's what it takes), monitor the 5V line and stop >> if it rises above (say) 5.5V. See what current flows - it should be >> arround 50mA. > >Worth a try. > >Philip. > > >

28 years, 8 months

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What's an M7165?

by dseagrav＠bsdserver.tek-star.net

What's an M7165?

28 years, 8 months

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1
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Kaypro 10

by dastar＠crl.com

Anyone want any Kaypro 10s? I know someone who has a couple he wants to get rid of. Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass

28 years, 8 months

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RA81

by dseagrav＠bsdserver.tek-star.net

Umm... I just noticed something. On the READY lamp, where the drive number is supposed to be, mine is blank. There's nothing behind the ready cover. No metal in it. Does that mean drive 0?

28 years, 8 months

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unsubscribe CLASSICCMP

by philippe.delbecque1＠vnumail.com

unsubscribe CLASSICCMP

28 years, 8 months

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HP 9831A

by manney＠nwohio.com

> I've got a little reference card for HP9830A Basic. Get me your postal > address and I'll send you a copy. Thank you, it looks as if I'll be unloading it. Perhaps he who gets it would be interested.

28 years, 8 months

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This Weekend's Finds

by Philip.Belben＠powertech.co.uk

[My ascii circuit diagram] > That looks like a voltage regualtor, which is strange, since I'd have > expected a constant current charger for the NiCd. Of course a lot of > machines just use a resistor to limit the charging current (and to get you > to buy more expensive battery packs) It does to me, too! By "to get you to buy more expensive battery packs" do you mean that the packs are more expensive, or that they wear out faster? > > If the machine draws 60mA, minimum voltage at input is around 9V, > > maximum around 13V, so I suppose I could try 10V and see what happens... > > Remember that you'll be charging this thing (probably) with the machine > turned off, so it's not going to be taking much current). Good point. 50mA then (8 < V < 12) based on the 14 hour rate on the battery label. Looks like 9V is about right... There is also a power switch but I haven't found where it connects yet. (Not in series with the circuit I just drew AFAIK) Next task, I suppose, is to trace that part of the circuit. Difficult, because most of PCB tracks are underneath LCD module which is difficult to remove... Philip.

28 years, 8 months

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This Weekend's Finds

by Philip.Belben＠powertech.co.uk

> > I bought: A TI-99/4A (Not as lucky as Roger M - I paid L12 with no > > joysticks, manuals or cartridges, but I did get the UHF thingy) > > Nice!!!.... Yes, my first TI computer (I have a broken calculator and a Silent 700 or two...) > > But the real find: A British Telecom Microscribe for L1 > > Very nice... > > > This object is a solidly built sub-notebook (about 7 in square by 1 > > thick) with a dinky keyboard and a palmtop-sized LCD. It has 32K of RAM > > and 16K of ROM, and the processor is an Hitachi HD63A03XP single chip > > microcomputer. > > Is that the only processor? It sounds as though it might be distantly > related to a Thorn-EMI machine called a Liberator which had a 63-something > for I/O and a Z80 running a CP/M like OS (or at least, that what I think > is inside it - the ROM is (C) Digital Research, and running strings on a > ROM image turns up some interesting stuff) 'fraid so. Indeed, it is the only chip with >28 pins (apart from the flatpacks on the back of the LCD). IC master, just to be perverse, gives various 6301 and 6305 variants in that series, but nothing of 6303 flavour. > Not so. A lot of machines use the NiCd as the smoothing component. HP > certainly did in just about all of their more recent NiCd calculators (the > ones that use the 8V 50mA AC charger). Interesting. I haven't found where the battery gets in, but the input stage is something like: Diode Ring --+--/\/\/-|>|-+-----+ | 56R | \ | |C / 82R | |/ \ +-/\/\/-+--| NPN / | |\ | _ |E | Tip--+ Zener A +-----+--- +5V? to rest of machine (??) | | GND GND I would guess the battery could well do any smoothing downstream of the regulator, but I'd still like to see some upstream of it! If the machine draws 60mA, minimum voltage at input is around 9V, maximum around 13V, so I suppose I could try 10V and see what happens... > Some, like the Epson HX20 even used the fact that the voltage across the > NiCd would go above 5V to limit the supply voltage to the chips. The ^^^^^ I take it you mean wouldn't > If you have an adjustable PSU, apply about 5V, and then crank it up > towards 9V (I'd guess that's what it takes), monitor the 5V line and stop > if it rises above (say) 5.5V. See what current flows - it should be > arround 50mA. Worth a try. Philip.

28 years, 8 months

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This Weekend's Finds

by Philip.Belben＠powertech.co.uk

Hi there everyone! I went to the car boot sale again yesterday. For once, there were lots of computers on offer: two ZX Spectra (original 16K); one Spectrum +2; an Atari 620; any number of Commodore 64s in late-style cases. I bought: A TI-99/4A (Not as lucky as Roger M - I paid L12 with no joysticks, manuals or cartridges, but I did get the UHF thingy) But the real find: A British Telecom Microscribe for L1 This object is a solidly built sub-notebook (about 7 in square by 1 thick) with a dinky keyboard and a palmtop-sized LCD. It has 32K of RAM and 16K of ROM, and the processor is an Hitachi HD63A03XP single chip microcomputer. THE LCD looks as if it might be 200 or 256 by 64 pixels (40 characters by 8 lines?) - I haven't powered it up yet because (a) the NiCd battery is flat and (b) I have yet to work out what voltage to feed it (3.5mm jack with tip negative). All I know is that it must be smoothed DC, since there is a diode but no smoothing capacitor in the input stage. The battery is 4.8V, and somewhat inconsistently marked 0.8 Ah - charge at 50mA for 14 hours (I make that 0.7Ah less charging losses), so the power supply (which feeds a linear regulator - transistor in parallel with 82 ohms) must be greater than this. I would guess at something in the region of 9V given the size of the resistors in the regulator circuit, but... The manufacturer's label on the back suggests it is a Microscribe Model 320, made by Microscribe Ltd at Cwmbran in South Wales. Since they had the forethought to put an address and 'phone number on the label, I shall try and contact them this week (DV). Meanwhile, does anyone have any info on this? In particular, what voltage do I feed it? Philip. <><><><><><><><><><><><><><> Philip Belben <><><><><><><><><><><><><><> Das Feuer brennt, das Feuer nennt die Luft sein Schwesterelement - und frisst sie doch (samt dem Ozon)! Das ist die Liebe, lieber Sohn. Poem by Christian Morgenstern - Message by Philip.Belben(a)powertech.co.uk

28 years, 8 months

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Opus 5000

by dastar＠crl.com

Anybody know what an Opus 5000 is? Someone offered me one for sale and I'm trying to figure out how much I should offer to pay him for it. Thanks. Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass

28 years, 8 months

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Weekend Finds

by zmerch＠northernway.net

Well, guys & gals, remember me? I'm one of the folks who lives in the boonies that owns 70% of the classic machines in a 50 mile radius!!! I travelled just a bit closer to civilization over the weekend, and did a lot of gar[b]age saleing on Thurs. & Friday, and I did get one good find, well, for at least the thumb area of Michigan (lotsa farmers)... A TI-99/4A (works) with RF Modulator, Joysticks, and 20 cartridges... $5. It even came in a computer/game holder, to keep everything organized. (haggled from $10... had to give wifey a lesson on "Don't ask me what it is, when I'm playing dumb!" ;-) Tho this isn't perfectly legit, I also picked up a Sony AC/DC (with 3 types of DC!) 5" color TV, which I plan to use as a monitor / portable monitor for one (or more) of my CoCo's. (The TI didn't like it... :-( Question: One of the cartridges has a triangular picture-hanger rivited to the case... would this be some sort of store demo or something? Anyway, keep digging, you'll eventually come up with something! Have fun, "Merch" -- Roger Merchberger | If at first you don't succeed, Programmer, NorthernWay | nuclear warhead disarmament should *not* zmerch(a)northernway.net | be your first career choice.

28 years, 8 months

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CLASSICCMP digest 147

by Historical＠aol.com

In a message dated 8/17/97 9:45:58 AM, you wrote: <<Hi Dave, just curious how the minimum bids were arrived at as they are quite high based on the prices I see out here in California.>> Marvin, Well, I'm here in Jacksonville, Florida and I source all of my finds >from the AOL classifieds and from a number of newsgroups. The prices are just my best guesses to minimum "shipped" values. The true value of any collectable is what the market will bare. I think I'm letting some of these things go at a pretty modest level (at least from my reference). Thank you for your comments, I'm going to keep trying to make it a better page. Best, David Greelish Classic Computing Press Jacksonville, FL historical(a)aol.com http://www.cyberstreet.com/hcs/hcs.htm

28 years, 8 months

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HP9100 I/O port

by ard＠odin.phy.bris.ac.uk

Does anyone have any info on the I/O port on the back of the HP9100 desktop calculator? I believe that HP once produced a manual telling you how to link up homebrew/custom peripherals, but I don't have it, alas What I really need is a pinout, brief signal descriptions or timings, etc. I want to be able to output a few on/off signals (I don't care if they're binary or BCD encoded). -tony

28 years, 8 months

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Address change

by kyrrin2＠wizards.net

If this ends up being a duplicate, my apologies. The first one was sent while I may not have been subscribed under my new address. In any case... yes, a new address. I had to ditch the old one due to spamming. Please note the new one: kyrrin2(a)wizards.net. Caveat emptor! -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Sysop, The Dragon's Cave BBS (Fidonet 1:343/272) (Hamateur: WD6EOS) (E-mail: kyrrin2(a)wizards.net) http://www.wizards.net/technoid "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..."

28 years, 8 months

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NSC800

by allisonp＠world.std.com

<controllers. There was a NSC800 cpu module, and when I removed it, sure <enough, there was a NSC800 N-1 cpu. No idea what that is though. Heaps of <switches, leds and stuff behind the front panel, too. Sounds like a National semi development system. The NSC800 is a cmos z80 that is 8085 bus compatable if I remember right. Generally speaking development systems tend to be scarce as they are not hight volume. Allison

28 years, 8 months

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Address change!

by kyrrin2＠wizards.net

Hi, folks, Well, it had to happen eventually I guess. I've had to change my address due to spamming of the old one. Please note that my new address will be kyrrin2(a)wizards.net. Caveat emptor! -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Sysop, The Dragon's Cave BBS (Fidonet 1:343/272) (Hamateur: WD6EOS) (E-mail: kyrrin2(a)wizards.net) http://www.wizards.net/technoid "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..."

28 years, 8 months

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NSC800

by adam＠merlin.net.au

Hi I found a scrap place today that ahd a few computers - got on good terms and now they are going to ring me whenever they pick one up. :) Apparantly they just scrapped an old Xerox box, but no details, and they get the occasional Altair and stuff. Anyway, they had little on hand that interested me (I already had their Amstrads, and the Commodore 128D's had no monitor or keyboards, so I thought I would think about them), but I did pick up something - I just don't know what it is. It's about the size of a original PC/XT, but the case is blue - with a blue clear panel on the front. Has two com ports and a vdu port, and two 8" drives. I opened her up, and she has a rack with everything plugging in at teh back, inc lots of controllers. There was a NSC800 cpu module, and when I removed it, sure enough, there was a NSC800 N-1 cpu. No idea what that is though. Heaps of switches, leds and stuff behind the front panel, too. Anyway, this is somewhat outside my normal collecting range, and isn't probably of much interest, but at a couple of dollars I thought it might be worth looking into it. Can anyone tell me what it is, or anything about it? Thanks heaps, Adam.

28 years, 8 months

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FW: Altair Scans

by rcini＠msn.com

Hello, again... Well, the Altair scans got here today, and I must say that the quality is excellent. There's stuff for the 8800b, the 8800, some add-in boards, and the "computer-notes" pamphlets. All told, with the schematics, there's about 90mb of info. Based on a quick count, there's probably 750-1000 pages of info. The files are in Adobe Acrobat PDF format. As soon Bill can reach his computer again, I'll Fedex them to him to post on the ftp site. ------------------------ Rich Cini/WUGNET <rcini(a)msn.com> - ClubWin Charter Member (6) - MCPS Windows 95/Networking

28 years, 8 months

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Mark 8

by groberts＠mitre.org

From: Tom <tomxs(a)hotmail.com> 4:22 Subject: Mark-8 for sale FYI, from comp.os.cpm: >Mark-8 Computer for sale. Intel 8008 introduced July 1974. >Serious collectors only. >Tom Smith >tomxs(a)hotmail.com

28 years, 8 months

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A moment of silence, please

by sinasohn＠crl.com

At 08:26 PM 8/12/97 -0700, you wrote: >The other day I haggled over a quarter for god's sake! Last weekend at a garage sale, a guy wanted to sell me three things (kiddie cars) for a quarter. I gave him $.50. --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad sinasohn(a)crl.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.crl.com/~sinasohn/

28 years, 8 months

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IBM 5100

by kaikal＠MICROSOFT.com

Yeesh, if you run into any, I'll trade you for them! I have several friends looking for them. I know of only two collectors besides myself who have 5100's. In contrast, there are about 15 Altairs represented on this mailing list. I do know of an Apple I that's for sale... anybody got $10,000 burning a hole in their pocket? Yeesh. Kai > ---------- > From: Sam Ismail > Reply To: classiccmp(a)u.washington.edu > Sent: Thursday, August 14, 1997 5:07 PM > To: Discussion re-collecting of classic computers > Subject: RE: IBM 5100 > > On Thu, 14 Aug 1997, Anthony Eros wrote: > > > > They're extremely rare. Rarer than almost anything except an > Apple I. > > > Just before I was lucky enough to be gifted mine from a saintly > > > old-timer, I saw one sell for $650. That's the only one I've ever > seen > > > for sale, and the seller said he'd received over 60 inquiries. He > also > > > said he could have gotten more if he wanted to drag the bidding on > for > > > another couple of weeks. > > I have to question this "rarer than almost anything escept for an > Apple > I" as I have seen two 5100 in varying states in the last few months. > I've seen even less of more obscure computers. In my estimation, > 5100's > aren't the hardest things to find. > > > Sam > ---------------------------------------------------------------------- > --------- > Computer Historian, Programmer, Musician, Philosopher, Athlete, > Writer, Jackass >

28 years, 8 months

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Old computer auction

by Historical＠aol.com

Maybe we can help someone sell an old system in the future. I'm just now fooling around with an internet auction. We hope to do another in the future. Check out the old computer auction at: http://members.aol.com/mtpro I appreciate any discussion and comments. Thanks. Best, David Greelish, Classic Computing Press http://www.cyberstreet.com/hcs/hcs.htm

28 years, 8 months

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HP 9831A

by jrkeys＠concentric.net

how much you asking? I'll pick up the postage and little something for your time. jrkeys(a)concentric.net At 08:24 AM 8/15/97 -0400, you wrote: >Dug up an HP 9831A...single-line, dot matrix display, full keyboard desktop >unit (abt the size of a typewriter). Looks fairly old. > >Seems to be a full computer (not a programmable calculator, which they also >made a lot of), as it wakes up in a BASIC mode. I get a lot of error >messages --probably due to improper commands. It will accept and run a >simple program. > >Anyone want it? > >manney(a)nwohio.com > > >

28 years, 8 months

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Philips G7000

by MPritchard＠Ensemble-Studios.com

> > the service manual) that the other 2 were luminance (Y) and > (PAL-encoded) > > chrominance, or possibly composite colour video and audio if it > feeds audio > > through to the TV. > > The composite video on the G7400 is Pal encoded, and I'm pretty sure > it is on the G7000. I have 2 sets of schematics. One for the > Odyssey2 (where every part number is an internal Magnavox number :-P > and the other for the G7000) - I seem to recall something about PAL > conversion on the RF modulator board. I probably just don't remember > right. > > If one is not composite video, where is the sync encoded? On Y (i.e. > making it composite mono)? I suppose this could just possibly be > video > + composite sync - just what I need. > > > >> >> What chips _other than the 8048_ are in this device? Is the > video side > > >> >> custom or does it use one of the many Philips video chipsets? > (Philips > > >> >> Prestel terminals tend to be stuffed with their Teletext IC's, > for > > >> >> example...) > > > > >Pretty boring, I'm afraid - 8245 and 6110 plus about 20 TTL chips. > I > > > > What the heck are those? > > 8245 is a Nat Semi keyboard controller. This chip says Intel on it, > but > I was assuming, probably very rashly, that it was the same thing. > > [Matt Pritchard] > We've been unable to find any info on the video chip; though it > supposed to be an Intel chip. Most of it has been reversed enginnered > though. > > 8 colors > 4 sprites, 8 by 8 pixels, independantly positioned & colord. can be > double sized > 12 characters, independantly positioned & colored, up to an 8 byte > tall strip from the character rom (512 bytes, 64 chars) can show just > part of a character. > 4 quad characters. 4 characters positioned in a horizontal row with > one character spacing inbetween. independantly colored. Put two of > these together to make 8 consecutive text characters. > > Background grid 10 by 8 blocks with 4 thin line segements around each > block. Complete off/on control of ever segment. Set a flag in the > video chip to fill in the large box to the right of each vertical line > segment. > > The horizontal retrace is run into the 8048 so you can count scanlines > - that is how colors are changed midway down the screen. > > 6110 is a typo for 6810 :-), in fact Motorola MCM6810, a RAM chip. > Looking it up last night I discovered that it is in fact 128 by 8 > (yes, > 128 bytes!) so I cannot think what it is used for! (It is too slow to > > be a video output buffer) > > [Matt Pritchard] > Are you sure it's not 256 bytes? > > Philip.

28 years, 8 months

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HP 9831A

by manney＠nwohio.com

Dug up an HP 9831A...single-line, dot matrix display, full keyboard desktop unit (abt the size of a typewriter). Looks fairly old. Seems to be a full computer (not a programmable calculator, which they also made a lot of), as it wakes up in a BASIC mode. I get a lot of error messages --probably due to improper commands. It will accept and run a simple program. Anyone want it? manney(a)nwohio.com

28 years, 8 months

2
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Please help this Amiga 500!

by alanr＠morgan.ucs.mun.ca

Lets try and help this guy out, he is trying to hook the young! I got a call yesterday from this guy who was looking for a disk drive for an Amiga 500, he is trying to set it up for his young niece. As luck would have it, a disk drive was the only piece of Amiga hardware that I have, so I went down there today to set it up for him. Unfortunately, it seems that the problem is not the disk drive but the floppy controller (i think). Not being fortunate enough to have owned an Amiga myself, I am at a loss. Here is the problem in brief: The machine will display the little picture asking for the disk... Put the disk in, and the drive is polled, but doesn't read it, so it ask again for the disk... I tried my drive in the system, with the same result (hence thinking it might be the controller)... I'm not exactly sure if it is the right disk he has, he ordered it from Toronto at a cost of $26.00 (can), it says Amiga workbench, however I am not sure if that is really what is on it... I would appreciate any help or suggestions from anybody who might have come across this situation before. Remember: This guy is setting this up for his young niece, who calls every day asking if it is ready yet. I think its great to get the young into classic computing (my own nieces just call my machines door stops, and call me a geek for having them ;) ---------------------------------------------------------------- ______________________________________________Live from the GLRS The Man From D.A.D ----------------------------------------------------------------

28 years, 8 months

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Haggling

by gmast＠polymail.cpunix.calpoly.edu

> On Thu, 14 Aug 1997, Tim Shoppa wrote: > > > I would tend to agree with Roger. Deal with people fairly and they'll > > respect you and your hobby. If you start haggling over every tiny little > > thing they'll just throw it away instead of calling you next time... > > I disagree. Nobody is going to say "Gee, I'd really like to take all > this old junk and sell it at a swap meet but those darn hagglers just > make it such a chore!!!" > > It's part of the whole swap meet experience. The fact is, I do treat > people fairly. I'm paying them what I feel it is worth, and as we all > know, that is what a "fair price" is. They certainly don't have to sell > it to me for what I ask, and in fact that has happened on several occasions. > Sam At a swap meet or garage sale most people expect you to haggle. That is part of the game. You can tell pretty quick if they're not into it becuse they say no to your offer. Most of the people I buy stuff from are just trying to get rid of it. They're more than happy to bargain. Especially if you buy all the boxes of "computer junk" they have. On the other hand there's a lady who hauls out an old Amiga 500 without power supply or mouse every week and is "Firm at $100". Someday she'll figure it out. (usually $5-$10 at Goodwill) I recall a stubborn seller a few years back. I was searching for a collectible Coke machine. I called a guy that had one for $1000. I mentioned making an offer once I had seen it and he told me he was "firm" on $1000 and seemed insulted. Well, before I could get there to check it out, a fellow collector drove down there within an hour and hauled it away for $200! Funny thing is that at the time I was ready to fork out at least $600 for it! You can never tell what people are thinking.

28 years, 8 months

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Transputers (was: Re: CCC : Atari machines)

by kaikal＠MICROSOFT.com

No transputers, but I know where you can get a 1450XLD from an ex-Atari employee, although he is only willing to sell it if he gets "the right price", whatever that is. Kai > ---------- > From: bluesky6(a)ix.netcom.com > Reply To: classiccmp(a)u.washington.edu > Sent: Friday, August 15, 1997 9:21 AM > To: Discussion re-collecting of classic computers > Subject: Re: Transputers (was: Re: CCC : Atari machines) > > I have actually seen the Atari Transputer machine at a show in Paris. > > If memory serves, one of the demos they had was the mandelbrot drawing > program with the 4 transputers each taking a part of the screen and > computing it at the same time while a stock ST had the 68K calculate > the entire screen by itself. > > IMHO, Atari had a lot of great products in those days. Unfortunately, > most of them were never really marketed or even so, were marketed > poorly. > > Ben >

28 years, 8 months

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PDP Stuff-What to get?

by djenner＠halcyon.com

Rich, I have found that getting hardware is relatively easy. I probably have enough pieces to put together a half-dozen Q-Bus 11's, although I consider most of the pieces "spares". Software, however, is another matter. Original distribution disks with accompanying documentation has been hard to come by. If you have any knowledge of DEC OSs, grab all you can get. For instance, I have been looking for an original distribution (disks, docs) for RT-11 Version 5.2 or later. If you run across a spare one of these, I would be happy to help you dispose of it! :) Thanks, Dave Jenner djenner(a)halcyon.com Seattle, WA 206-527-2018 ---------- > From: Richard A. Cini, Jr. <rcini(a)msn.com> > To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> > Subject: PDP Stuff-What to get? > Date: Friday, August 15, 1997 6:19 AM > > Hello, all: > > Well, I finally heard from that guy at Temple University (Philly, PA) about > the truckloads of PDP equipment. I'm going down there next Friday to get some > stuff. I asked this question before, but didn't get a complete answer, so here > it goes again... > > "If you were able to get your pick of PDP-11 equipment (like 11/34s) and > accessories, what would you get?" This is my first PDP acquisition, so I don't > know what to look for (and I don't have a truck, so I can't just haul it > all!). I don't even know how big this stuff is, but I'd like to try to get a > "complete" (whatever that is) PDP system, but a rack-mount style, which is > easier for me to transport. > > From what I understand, the Temple computer department has truckloads of this > equipment, from all types of hardware to software and manuals. I'm looking for > an expert's recommendation as to what to shop for. > > Thanks for the input! > > > ------------------------------------------------- > Rich Cini/WUGNET > e-mail: rcini(a)msn.com > - ClubWin Charter Member (6) > - MCPS Windows 95/Netowrking

28 years, 8 months

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CCC : Atari machines

by hans1＠filan00.grenoble.hp.com

OK, here is the complete listing from the CCC of the machines made by Atari. Please consult your favorite references and confirm/deny or complete the missing data. I would like a month/year for the first customer shipment or the first public working demonstration of the machines. Please provide references where possible, if they are on-line then so much the better. I am also planning to extend the information per machine to include data about processor used, word-size, memory configurations etc. so feel free to add that data also. I have set the reply to address to my personal Email so as not to clutter the mail list. You can always go to the CCC to recover the updated data. If there are enopugh requests I can post an updated preview table here before the CCC gets updated. I would also be interested in a potted history of the manufacturer, date started where located and significant events in its history. I know most of this is probably available on the NET for Atari, but not for some of the more obscure companies. CCC list for Atari I think I am correct in saying that all Atari machines were designed in the USA. 400 Dec-78 800 1979 1200XL 1982 600XL 1983 800XL 1983 1040 ST 1985 130XE 1985 520 STfm 1985 520 ST Jan-85 65XE Jan-85 Mega ST 1987 Mega STe 1987 XE Game system 1987 STe 1990 TT 1990 1024 STe 1040 STf 1040 STfm 260 ST 2600 520 ST+ 520 STe 520 STm 800XE ATR-8000 Falcon 16 Mega 1 Mega 4 STacy STbook TT/16 Thanks for you help Hans B Pufal

28 years, 8 months

4
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Philips G7000

by Philip.Belben＠powertech.co.uk

> A Composite video conversion is pretty easy; I converted a G7400 over in > about 5 minutes. Could I have some details, please? Is composite Video easy to find in the circuit, or do I have to reverse engineer or poke around with a scope? Philip.

28 years, 8 months

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Philips G7000

by Philip.Belben＠powertech.co.uk

> Assuming that there are no other connections to the 'Modulator' then one of > those wires has to be a power rail. I'd guess (without seeing the device or Oops! The connection to the PSU is another ground, so I guess you must be right. > the service manual) that the other 2 were luminance (Y) and (PAL-encoded) > chrominance, or possibly composite colour video and audio if it feeds audio > through to the TV. If one is not composite video, where is the sync encoded? On Y (i.e. making it composite mono)? I suppose this could just possibly be video + composite sync - just what I need. > >> >> What chips _other than the 8048_ are in this device? Is the video side > >> >> custom or does it use one of the many Philips video chipsets? (Philips > >> >> Prestel terminals tend to be stuffed with their Teletext IC's, for > >> >> example...) > > >Pretty boring, I'm afraid - 8245 and 6110 plus about 20 TTL chips. I > > What the heck are those? 8245 is a Nat Semi keyboard controller. This chip says Intel on it, but I was assuming, probably very rashly, that it was the same thing. 6110 is a typo for 6810 :-), in fact Motorola MCM6810, a RAM chip. Looking it up last night I discovered that it is in fact 128 by 8 (yes, 128 bytes!) so I cannot think what it is used for! (It is too slow to be a video output buffer) Philip.

28 years, 8 months

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PDP Stuff-What to get?

by rcini＠msn.com

Hello, all: Well, I finally heard from that guy at Temple University (Philly, PA) about the truckloads of PDP equipment. I'm going down there next Friday to get some stuff. I asked this question before, but didn't get a complete answer, so here it goes again... "If you were able to get your pick of PDP-11 equipment (like 11/34s) and accessories, what would you get?" This is my first PDP acquisition, so I don't know what to look for (and I don't have a truck, so I can't just haul it all!). I don't even know how big this stuff is, but I'd like to try to get a "complete" (whatever that is) PDP system, but a rack-mount style, which is easier for me to transport. From what I understand, the Temple computer department has truckloads of this equipment, from all types of hardware to software and manuals. I'm looking for an expert's recommendation as to what to shop for. Thanks for the input! ------------------------------------------------- Rich Cini/WUGNET e-mail: rcini(a)msn.com - ClubWin Charter Member (6) - MCPS Windows 95/Netowrking

28 years, 8 months

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Philips G7000

by MPritchard＠Ensemble-Studios.com

A Composite video conversion is pretty easy; I converted a G7400 over in about 5 minutes. > -----Original Message----- > From: Philip.Belben(a)powertech.co.uk > [SMTP:Philip.Belben@powertech.co.uk] > Sent: Wednesday, August 13, 1997 6:20 AM > To: Discussion re-collecting of classic computers > Subject: Re: Philips G7000 > > > > collectible. (What is the G7000 anyway? Yes, I did buy it! It > has an > > > 8048 as the CPU, of all things!) > > > > It is a video game system that is compatible with the Magnavox > Odessey^2 > > > > Do you have any cartridges for it. If not then I have a few > duplicates. > > Yes thanks, I have four or five. I don't expect to use the thing > until > I can find out how to get composite video or RGB out, since I don't > possess a television. > > [For those of you not in the UK, here one requires a licence to > operate > "Television Receiving Apparatus", which I think includes any TV with a > > UHF tuner, but not a monitor. The licence fee is (without looking up > either the current fee or the exchange rate) about $120 a year, and I > am > not prepared to pay this. So I don't have a TV - and seldom miss it.] > > Philip.

28 years, 8 months

1
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IBM 5100

by Eros＠mail.dec.com

---------- From: Kai Kaltenbach[SMTP:kaikal@microsoft.com] Sent: Wednesday, August 13, 1997 5:32 PM To: Discussion re-collecting of classic computers Subject: RE: IBM 5100 > They're extremely rare. Rarer than almost anything except an Apple I. > Just before I was lucky enough to be gifted mine from a saintly > old-timer, I saw one sell for $650. That's the only one I've ever seen > for sale, and the seller said he'd received over 60 inquiries. He also > said he could have gotten more if he wanted to drag the bidding on for > another couple of weeks. Sheesh! It's all a matter of timing, I suppose. Aside from the system I didn't buy several years ago, I spoke with a town manager in upstate NY who had trashed two 5100s after posting a "for sale" message on a web page and had received no responses. > I am aware of a gentleman who may be willing to part with a 5110 + dual > 8" external drives + printer, but he wants a "very generous offer" for > it and the shipping alone would be a killer since the total weight is > about 200 lbs (he's in PA). Pennsylvania's not a problem -- I'm in Delaware and could certainly pick it up. What's the difference between the 5100 and the 5110? > BTW, do you have a web page for your collection? Not yet, but it's on my list of things to do... -- Tony Eros Proprietor -- FooBear's Cluttered Cellar Classic Computer Collection

28 years, 8 months

2
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Possible PDP11 acquisition/what to get

by rcini＠msn.com

I may have the opportunity to pick-up some PDP11 equipment. I'm not too knowledgeable about the PDP11 series and all of the accessories that go with it, nor do I have a complete list of the goodies at this time. What I'd like to do though is to get a "complete" system for my collection (which consists mostly of micro stuff). Some of the equipment includes several 11/34s, 11/23s, 11/23+, 11/40, 11/05, etc., RK05/RL01/RL02/RX01/RX02 drives, plus racks and a whole load of other stuff. Any guidance here would be appreciated. BTW, this stuff is at Temple University (for all of those East-coast rescuers). TIA! ------------------------ Rich Cini/WUGNET <rcini(a)msn.com> - ClubWin Charter Member (6) - MCPS Windows 95/Networking

28 years, 8 months

9
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Philips G7000

by ard＠siva.bris.ac.uk

> Well, finding a composite video point is trivial, therefore. > >Inside the modulator can, I fear. > >I had another look inside last night. The two metal cans appear to be >video circuitry (on motherboard) and modulator (separate). They are >linked by a 4-way ribbon cable of which one conductor is ground. I >suspect the remaining three of being video, line sync and frame sync. >(They could, I suppose, be composite mono, U and V but I doubt it) Assuming that there are no other connections to the 'Modulator' then one of those wires has to be a power rail. I'd guess (without seeing the device or the service manual) that the other 2 were luminance (Y) and (PAL-encoded) chrominance, or possibly composite colour video and audio if it feeds audio through to the TV. >> >> What chips _other than the 8048_ are in this device? Is the video side >> >> custom or does it use one of the many Philips video chipsets? (Philips >> >> Prestel terminals tend to be stuffed with their Teletext IC's, for >> >> example...) >Pretty boring, I'm afraid - 8245 and 6110 plus about 20 TTL chips. I What the heck are those? >can't read the numbers of the chips inside the video can unless I >desolder said can from PCB. Well, that's what I'd have done by now... > >Philip. -tony

28 years, 8 months

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applecolor rgb monitor info needed

by zmerch＠northernway.net

Whilst in a self-induced trance, SUPRDAVE(a)aol.com happened to blather: >i have this big apple monitor that i need some help with. it's big, beige, >and heavy with a motorized tilt screen and a db15 connector. i'm having a >video problem with the monitor. i don't get any kind of raster screen and i >do not have the special card to run it on my //e. i've tried it on the video >port of my laser 128 and on my dodgy apple ///, all to no avail. can anyone >figure out a possible solution? if i cannot get it to work, i'd like to get >rid of it, but it's so heavy it wouldnt be worth shipping unless you live in >north carolina. If it's a sub-miniature DB-15, then that sounds like a PC VGA plug-in. If it's a normal-sized DB-15, then that sounds like it's a direct-connect for a later-model Smackintosh. (I say this jokingly, I have one...) When I say later-model, I'm talking a Mac IIsi or something like that, altho I think the PowerMacs use that connector as well, and I believe it's compatible. (I had my Mac IIsi hooked up to the monitor we use for a PowerMac 6100/60 at work, and it worked fine.) If you're looking to get rid of it, I would pay shipping to Michigan... yea, it'd be expensive, but if it's a nice tube, it would make my Mac happy... (all I have is the base, but it only cost me $5 and it works!) Got a keyboard & mouse to round out the deal??? ;-) HTH, "Merch" -- Roger Merchberger | If at first you don't succeed, Programmer, NorthernWay | nuclear warhead disarmament should *not* zmerch(a)northernway.net | be your first career choice.

28 years, 8 months

2
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Can we help this guy out?

by idavis＠comland.com

I was sent this email and I figured who better to help this guy out, than our little group. =================================================== Return-Path: MajorLeague(a)getthe.net Date: Thu, 14 Aug 1997 08:54:10 -0600 From: Major97 <majorleague(a)getthe.net> Reply-To: majorleague(a)getthe.net To: idavis(a)comland.com Subject: Do those disk drives work? Your disk drives mentioned in your rescue page, you have listed apple II drives. Would you be willing to part with a couple of them? I would like to know how much you would want etc. if you sold. I would pay shipping. I have an apple knockoff (I think it is a pear) I really don't know what it is but it came with apple IIe stuff. My drives are hatched. Thanks Steve =================================================== I also encouraged him to join the list. Isaac Davis | Don't throw out that old computer, idavis(a)comland.com | check out the Classic Computer Rescue List - indavis(a)juno.com | http://www.comland.com/~idavis/classic/classic.html

28 years, 8 months

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Could I build a PDP-8

by fmc＠reanimators.org

Hans Pufal <hans1(a)filan00.grenoble.hp.com> writes: > The Art of Digital Design, an introduction to top-down design > by Franklin P. Prosser and David E. Winkel > Prentice-Hall 1987 ISBN 0-13-046673-5 025 Thanks. Maybe this was a popular thing to do in the mid-1980s? The undergraduate computer architecture course (1983 I think, maybe 1984) I took basically went from gates to a PDP-8-like CPU over the course of the semester. Somewhere at the beginning I think we spent a half-hour on the fact that there are different logic families, but we never touched on that again. (This was a Computer Science course, Real Hardware seemed to be the province of the Electrical Engineering department.) > Talking of 16 bit extensions to the PDP-8, that is what the HP-2116A > appears to be, anyone konw that processor? By manuals only I'm afraid, and I spent more time fascinated by the possibilities of user-developed microcode in the 2100A. The 2116A is entirely hardwired, with two accumulators, 16-bit word, 32KW memory I think. Oh, and stable across the same environmental conditions as other HP instrumentation. I suggest you webulate over to www.chac.org and look for the plain-text versions of Engine 2.3 and 2.4. You want to read the interviews with Barney Oliver and Joe Schoendorf in those issues. -Frank McConnell

28 years, 8 months

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