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

by CLASSICCMP＠trailing-edge.com

>> > >> > Err, and just what _production_ PDP11s are pre-11/20?? >> > >> >> Gordon Bell had 300 "PDP-11" minicomputers made that were *slightly* >> different from the PDP-11/20. Most 11/20 boards are rev "A". I will list soo >> the differences - most had to do with the UNIBUS.. but there was some >> changes to the datapaths as well. >Ah, so they're not really production machines... > >As a user/repairer (as opposed to a collector), my views on prototype >machines and their value is perhaps a little different to others. You also have to keep in mind who the owner is and how much he wants to inflate the value of his equipment. I think it's been conclusively shown that there are at least some members of this list who are very good salesmen (perhaps PT Barnum style), and some others who aren't so good. Q: What's the difference between a computer dealer and a car dealer? A: The car dealer knows when he's lying. Tim.

26 years, 2 months

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Busses vs no busses

by xds_sigma7＠hotmail.com

Chuck, Of course, you can always point out that with the DEC stuff, the unibus, omnibus, posibus, negibus, and qbus all use the same connectors... realllly different electrical signals but still the same connectors... quite handy.. Will J ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

26 years, 2 months

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HP86

by yakowenk＠cs.unc.edu

Hey all, I have a line on an HP-86 up for grabs in California, about 90 miles north of Sacramento: ] HP-86 with manuals, monitor, two disc drives, memory modules, matrix ] manipulation hardware (never used), etc. I have not taken a complete ] inventory of what is there. Would be happy to GIVE it to anyone that ] has an interest. Let me know if you're interested, and I'll pass the word on. Cheers, Bill.

26 years, 2 months

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Busses vs no busses

by xds_sigma7＠hotmail.com

Oops, I should have made it clear that I was speaking only about WIREWRAP boards! I did not mean to imply in any way whatsoever that you could put unibus boards in say a negibus backplane, unless you like the smell of burnt circuitry.. that was also the reason for my note about their electrical signals being totally different, i.e. that unibus boards might have the same connectors as qbus boards, but they are electrically different... Dear lord I hope nobody cooked anything by mistake!!! Will J ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

26 years, 2 months

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Cool hack (was Busses vs no busses)

by RCini＠congressfinancial.com

There was a project just for this in Electronics Now or Popular Electronics just recently. I'd say Feb. or March issue. If I have time tonight, I'll dig-up the article. As I recall, it uses a PIC and a group of LEDs on a pendulum to provide the date and time using the same "persistence of vision" as mentioned below. I don't recall if the swinging was user-invoked, motorized or magnetic. Rich ========================== Richard A. Cini, Jr. Congress Financial Corporation 1133 Avenue of the Americas 30th Floor New York, NY 10036 (212) 545-4402 (212) 840-6259 (facsimile) -----Original Message----- From: Marvin [mailto:marvin@rain.org] Sent: Tuesday, May 09, 2000 11:06 AM To: classiccmp(a)classiccmp.org Subject: Re: Cool hack (was Busses vs no busses) John Foust wrote: > > What's the name of those signs that are composed of nothing but > a single vertical column of LEDs, where you can only see the > image (or the digital clock display, etc.) as your eye scans > across it, leaving the multiplexed image in your brain? I can't recall either, but that brings to mind an interesting project a friend of mine worked on quite a few years ago. The Art Museum here was having some kind of show and an artist wanted to paint electronic pictures. My friend designed the electronics (I built the circuit boards) to put a line of LEDs on a pendulum and paint pictures electronically as the pendulum swung through its arc. With the multi-colored and higher intensity LEDs available today, it would be really cool to do the same thing but with color pictures. Doesn't sound like too hard a project especially with the speed of todays computers.

26 years, 2 months

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RL02 cart on eBay

by jfoust＠threedee.com

http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=328480021 - John

26 years, 2 months

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Couple of cheapies

by kyrrin＠bluefeathertech.com

And, finally, a couple of cheapies. RT-11 Pocket Guide, still in the shrink wrap, for Ver. 5.0. Since I don't use RT-11, this is not very useful to me. First person to offer $5.00 (Shipping included!) gets it. I also have a data cable as used on the HP 262x series terminals. It's a DCE species, HP part #5061-4216. Has the 50-pin Amphenol 'Micro-Ribbon' connector on one end, and a female DB25 on the other. Same price: $5.00 (Includes shipping). In the event of multiple responses, priority goes to the E-mail with the earlier time/date stamp. Thanks much! -=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner/Head Honcho, Blue Feather Technologies (www.bluefeathertech.com) kyrrin(a)bluefeathertech.com "SCSI Users, Unite! Beware the IDEs of March!"

26 years, 2 months

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PDP-8 book available

by kyrrin＠bluefeathertech.com

Ok, here's another Haggle item at: http://www.haggle.com/cgi/getitem.cgi?id=202308864 It's a copy of "Introduction to Programming" (DEC) that seems to have been written around the PDP-8. The bottom of the front cover reads "PDP-8 Handbook Series" (wazzat a clue or what?) ;-) Starting bid is two bucks plus mailing. Help me find this one a good home. Thanks! -=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner/Head Honcho, Blue Feather Technologies (www.bluefeathertech.com) kyrrin(a)bluefeathertech.com "SCSI Users, Unite! Beware the IDEs of March!"

26 years, 2 months

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HP9825 Manuals and Tapes Available

by kyrrin＠bluefeathertech.com

I just posted a listing on Haggle's Antique Computers section (I absolutely REFUSE to deal with E-pay) as follows: http://www.haggle.com/cgi/getitem.cgi?id=202308845 It's for a stack of manuals/tapes on the HP9825 desktop computer. Full description's at the site. I thought about limiting the posting to the list, but I wanted to give any of you who have a 9825, and might need the docs, a fair crack at it. Thanks much. -=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner/Head Honcho, Blue Feather Technologies (www.bluefeathertech.com) kyrrin(a)bluefeathertech.com "SCSI Users, Unite! Beware the IDEs of March!"

26 years, 2 months

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IMSAI 8080

by jeff.kaneko＠juno.com

This is being offered by a third party. All inquiries should be made to the e-mail near the end of this message. ----------------------------------------------- ** FOR SALE: IMSAI 8080 ** Serial Number: 1009006 Boards installed: IMSAI MPU-A 8080 CPU CCS Model 2422 Multimode Floppy Controller SC DIgital Model 32K Memory board Two memory boards, maker unknown (see pic) Tei IO 3P+3S Serial/parallel io card S-100 Extender board Northstar MDC-A4 Hard-sector Floppy Controller Documentation: "A couple of boxes" of hardware & sofware docs. Software: Stack of hard-sectored diskettes, that looks like they have the OS, and some applications on them, couldn't tell for sure. Package also includes: Pair of MPI floppy drives in a hand-made copper cadrive cabinet (see pic). OKI Microline 82 printer Apple pen plotter B/W Television Set, modified for use as a monitor. ------------------------------------------------------ I looked at this stuff the other nite; it looks like a pretty nice example of the IMSAI with its original CPU card. It's a bit dusty inside, but cosmetically fine otherwise. No broken paddle switches, and it comes with the original steel top (made of boilerplate). I've been told that there may be more items added to the inventory, but this is what has surfaced so far. It was working when this was put away, but hasn't been powered up since. Actual electrical condition unknown. Photos can bee seen at: http://home.kscable.com/kh6jjn/imsai_front.jpg http://home.kscable.com/kh6jjn/imsai_side.jpg http://home.kscable.com/kh6jjn/disk_drives.jpg http://home.kscable.com/kh6jjn/memory_board.jpg ------------------------------------------------------- All offers/bids/whatever should be sent via e-mail to: DENYS FREDRICKSON, at: denysgf(a)juno.com Thank you for your attention. We now return you to our regularly scheduled programme. . .

26 years, 2 months

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Unix vs. VAX/VMS and Windows vs. Unix/Linux/BSD -- seems like we'veseenthis before

by allisonp＠world.std.com

>Getting W95C legally was difficult if you're not an OEM or buying it with >hardware. I'm going to look at 98lite20. I've been pretty pleased with >the performance on Win98. Simple, buy 95b and hit their site for hte upgrades. Most of them are for USB anyway. >Actually, I'm wondering if the FreeBSD 1.1.5.1 would run on some of >the new hardware. I've got a tape of it and I'm thinking about >building it. Likely it would but you'd have problems with hardware that is not supported as it didn't exist then. >> Which WPoffice? I have Caldara Openlinux 2.2 and 2.3 and WP8 is fine >> under KDE. Just has a huge footprint on teh disk though. > >Word Perfect Office 2000... It's huge (the full load of the Professional >version is around 340mb). I heard it was a monster. I know people that like WP-8 as it does things format wise that Word cant and it's very useful to lawyers for that. >The VT180 was one of the best CP/M machines to use. Typeahead, >good hardware, a great screen and the best keyboard. Just too expensive >for most people. Yep, it's a winner. I have several (plus gave away a bunch more over the years). It's a nice machine to hack as well. Mods I've done include 6mhz z80, two sided, 3.5" 781k/720k floppy and a romdisk/ramdisk. plus a bubble memory interface. The AmproLB is another really great CP/M engine with SCSI even. There were some later designs like the P112 (from OZ) with a 16mhz Z180 IDE and all the other goodies. Another favorite is the Micromint SB180 with the scsi/com card 9.6mhz 64180 (z180) 256k ram FDC that works with any 8/5.25/3.5 disk and a SCSI interface for hard disk. Kaypros are OK, the display software is slow but they run well especially if they have turborom installed. Allison

26 years, 2 months

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Unix vs. VAX/VMS and Windows vs. Unix/Linux/BSD -- seems like we'veseen this before

by allisonp＠world.std.com

>But until the Vax is available at Intel prices and reliablity (the old >VS3100's and uVaxII's are getting a bit long in the tooth for joe >consumer -- and the disks are now creaky)... What disks creaky? They run with newer stuff. But no any os that has the VMS/Unix admin requirements is not consumer friendly anyway. Unix or VMS or even NT the aim is the same for someone like me. That is to get the user out of the core system where they have no business. Now the problem is that w9x et al has become pervasive any new OS one might introduce has to work and play well in that space, thats a PITA! Linux is ok, I've got Caldara OpenV2.3 and it's not faster than W95 and it uses just as much space, it aquired all the bloat win has. the advantage is it's got security. The down side is now you have a user that can't use word documents and excel spread sheets without conversion. Sharing files is easy if you fire up samba and try to explain "mounting" so someone that can nearly say CPU. Thats the problem with better. Allison

26 years, 2 months

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HP 3000/925 available

by ss＠allegro.com

Re: > > Where is this located? The HP 3000/925 is in Houston, Texas. Stan Sieler sieler(a)allegro.com www.allegro.com/sieler/wanted/index.html www.allegro.com/sieler

26 years, 2 months

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Update on what's still available

by xds_sigma7＠hotmail.com

Ok, what's left is: Dataram Corp. P03 LSI-11 Parity Controller Product Specification 1 HP700/92 + HP700/94 User's Manual Wang 2200 BASIC-2 Language Reference Manual (kinda beaten but complete) VMS 4.4 Volumes 1B, 5A, 7B, 8B, 8D, and 10A, complete except for the I/O reference, part I. I know for sure that I have more stuff to get rid of, when I've found another somewhat significant amount I'll let the list know. Also, I will make lists of the advertising stuff from DEC, Emulex, etc. for those who were interested. Also, just to clarify, I meant that either you could trade me something *or* it was free... And money is not accepted, I meant trade other computer-related items. ;p Will J ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

26 years, 2 months

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Unix vs. VAX/VMS and Windows vs. Unix/Linux/BSD -- seems like we'veseen this before

by allisonp＠world.std.com

>I can't forgive A.T. for the anti-assembly-language advocacy in his comp arch He he teaches it, when was he the author of commercial code? ;) >at once and then tries to draw conclusions. But if Minix is "free" now, that >must mean that at least he changed his mind about the bizarre licensing rules >he used to have. IIRC it was ~$100 for the book+code and you could install >"a few" copies, whatever that means. the licensing went from noncommercial personal use to a more open license (details on line). The book at about 60$, I got it and it's useful as was the cdrom( with V2.0). one of the other characters has a version that runs under dos and also a version with real VM support. Theres IP support too. It's good where small is desireable and swap (2.0) is not on the wish list. Allison

26 years, 2 months

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Looking for LMI LISP Machines

by wvh＠gethip.com

Every few years I evaluate the holes in my workstation collection (http://www.city-net/~wvh/collection.html, not up to date) and inevitably find that I still have no LMI LISP machines. This list seems to be the perfect place to ask (1) if anyone has one (or more) or docs, software, or even just parts that they're willing to "part" with or (2) if anyone knows where any systems, software, or docs are lurking. It's been a long time since their "heyday" (Stallman honed his hacking skills on these boxes). I have working samples of most/all of the other classic LispMs (PERQs, TI Exploders, XEROX boxes, Symbolics) but alas, no LMIs. Can anyone help? Thanks! Bill

26 years, 2 months

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Ford's '60s computer?

by mranalog＠home.com

Robert <pbboy(a)mindspring.com> said: > Does anyone know what computer Ford Motor Company used in the 1960's? > I've read that Shelby used a computer to find the proper location for, > among other things, the upper control arm on the '65 Mustang for his > GT350 and used one to help design most, if not all, of his other > creations' critical parts. I've searched IBM (must've been IBM!) and > Ford and came up with nothing. Although IBM's timeline has the 608 It sounds like you're asking what computer Caroll Shelby used? As I understand it Ford built the cars then they were modified at Shelby's company, Shelby American, in L.A. You might try asking the Los Angeles Shelby American Automobile Club,http://www.lasaac.org/ or ask at Carroll Shelby official web page,http://www.carrollshelby.com/ --Doug ==================================================== Doug Coward dcoward(a)pressstart.com (work) Sr. Software Eng. mranalog(a)home.com (home) Press Start Inc. http://www.pressstart.com Sunnyvale,CA Curator Analog Computer Museum and History Center http://www.best.com/~dcoward/analog ====================================================

26 years, 2 months

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Lots o' stuff that I don't need, it's free too

by xds_sigma7＠hotmail.com

Hi all, In an effort to make room for other manuals, etc. I have the following extras/stuff I don't want available for the taking. Trades would be nice but don't feel obligated.. ;p Clinch/Peters/Small/Summerfield "Tailoring RT-11" Data General Corp. Nova Minicomputers Instruction Reference Card (x2) Dataram Corp. P03 LSI-11 Parity Controller Product Specification DEC Installing and Using the VT320 DEC playing cards, still in the plasic "Digital Know Networks!" DEC PDP-11 Architecture Handbook, 1983-1984 DEC PDP-11 Microcomputer Interfaces Handbook 1983-1984 DEC PDP-11 Programming Card (the July 1975 one) DEC Remote System Manager VMS User Reference Card DEC Terminals + Printers Handbook, 1983-1984 DEC US Systems Price List Oct. 1, 1988 DEC US Systems Price List July 2, 1990 DEC VAX Technical Summary (the original that's not a handbook and not from DECbooks, copyrighted 1982) Gill, Arthur "Machine and Assembly Language Programming of the PDP-11" Grisham, Ralph "Assembly Language Programming for the CDC 6000 Series" Hewlett-Packard HP-16C Owner's Handbook Hewlett-Packard HP700/92 + HP700/94 User's Manual (2 copies) Hewlett-Packard HP7475A Graphics Plotter Interfacing + Programming Manual Hewlett-Packard HP7475A Graphics Plotter Operation and Interconnection Manual IBM 8130 and 8140 Processors Operator's Guide MDB MLSI-DLV11 Instruction Manual Wang 2200 BASIC-2 Language Reference Manual (kinda beaten but complete) VMS 4.4 Volumes 1B, 5A, 7B, 8B, 8D, and 10A, complete except for the I/O reference, part I. Also VMS 5.5 on TK50, with about 8 or 9 VMS manuals And I dunno if anyone besides me has any interest in old sales materials, but I have a bunch of extra DEC/Emulex/Wyse sales info if anyone is interested let me know and I'll get more details. ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

26 years, 2 months

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What a weekend!

by allisonp＠world.std.com

>> > Even got parts from a lunar lander... >> What? Name 'em! > > Part of the RADAR altimeter and a spare hatch. Parts of the flight computer would be a catch! Even those of the Shuttle. While I'm not actively trying to get more there are some things out there on my "Oh, don't pass that one up" list. Minuteman missle computer. An old disk machine with serial electronics and all transistor. It was my intro to real touch it hardware some 28 years ago. Cincinatti Millichron CM2xxxx series 16bit computer CA1973ish (anyone but me ever see one?) Allison

26 years, 2 months

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Info on how to get digest version

by SWMORETP＠aol.com

Does anyone know how to get the digest version of this group instead of single e-mails? Tony

26 years, 2 months

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I wrote 'Nuke Redmond'

by xds_sigma7＠hotmail.com

There's only one reason that MS has the market share they do, and it's quite simple: IBM. It works like this; 1)IBM comes up with the PC. 2)Asks MS to provide OS. 3)MS pays SCP to be able to port 86-DOS to the IBM PC, later buys rights to DOS, yadda yadda yadda. 4)The PC is cloned, and all of the PC clone makers come to MS and pay them to have the same OS as IBM. 5)Due to PC being far more succesful than anyone imagined, the PC market becomes quickly locked into MS software, since without it, you wouldn't have compatibility with old programs, etc. This is, of course, totally over-simplified, and could possibly be inaccurate about some of the minor points, but its the general reason. And of course, OS/2 really isn't an MS compititor, since IBM paid MS to write it and MS even sold it with their own name on it for a while. Amusingly, even after MS stopped making OS/2, they still sold MS LANManager, which requires OS/2. Heh. Will J ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

26 years, 2 months

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Enough with the MS bashing, please

by xds_sigma7＠hotmail.com

Is it truly necessary to fill the list with stuff like "Microsoft is awful", etc etc etc.? I don't see how that is particularly related to classic computers... Like the "Nuke Redmond" thread, which filled my mailbox with probably 100+ messages which I had no desire at all to even look at. It is really annoying to check your mail, have about 70-100 messages, and have about 80 or so be pure garbage like that. Besides, not everyone dislikes Microsoft's products. I for one, like their products a lot, I'm using Win 98SE right now, and our NT server has been running continuously for about 4 years now, no crashes at all. And I do have experience with other OS's, I also run BeOS on my machine, I also run Solaris, Netware, VMS, RT-11, OS-32, Infoshare, CP/M, MacOS, UnixWare, and HP-UX. I'd say VMS is my favorite, BeOS is up there, same with UnixWare + Win 98, with Linux, Netware, and MacOS being my all-time least favorites. I wouldn't even consider running a Linux machine unless there was money in it for me ;p Anyway, I've now added some of what I hate, going against the entire message I was saying, but anyway, how about having the list a bit more on topic? Will J ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

26 years, 2 months

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Goodbye, for now....

by kla＠helios.augustana.edu

Classic Computer folks: I guess I cannot leave lists without saying goodbye, just like it would be improper to leave a party without thanking the host. So here is my goodbye (for now at least, because I cannot guarantee I won't be back :-). Much as I still lust after a functional PDP-8 system, my life is just too hectic right now (with two upcoming moves -- to Dubuque, Iowa in June and then to Bismarck, North Dakota in July -- and related unknown job searches...) to actively seek such a system. At the same time, I am envious of you folks for both having such classic systems (whether it be luck or by crook :-). But somehow my mind is too cluttered to keep straight all the permutations and modifications needed to keep the hardware and software booting and running. (I'm having a hard enough time keeping my older radios and my amateur radio equipment going at the moment...) Yet I have learned a bunch from you guys in the short time (half year or so) that I have followed this list. And much as I have opinions as well about Microsoft, viruses, prefered OS, etc., somehow it is not the same discussing them over a mailing list. I'd match rather do it face-to-face, while preferably seated in a pleasant pub with a good pint o' ale or red lager in hand <grin>. So, see you around the next bend....take care. Cheers/73. Kevin Anderson (ham radio folks: listen for me on 10-40 meters -- KB9IUA/mobile, soon to be K9IUA I hope through the FCC buy-a-call program -- both CW and SSB. I'll be handing out ND counties for the county hunters.) * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Kevin L. Anderson Ph.D., Geography Department, Augustana College Rock Island, Illinois 61201-2296, USA phone: (309) 794-7325 e-mail: kla(a)helios.augustana.edu -or- gganderson(a)augustana.edu * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Opinions expressed here are my own and do not represent the administration of Augustana College.

26 years, 2 months

1
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I wrote 'Nuke Redmond'

by allisonp＠world.std.com

>I don't believe you have had a four year uptime with NT unless your NT box >is not connected to a network. At least admit you reboot the machine from >time to time. The best Uptime I have had on an NT machine is NT4 Terminal >Server which stayed up for six months without a reboot. I feel NT is a >qualified server OS but my particular circumstance is an NT machine with Well I have to live with three NT3.51 servers and reboots do occur but they are from power failures that exceed the UPS or when the fan on the cpu got noisey and needed replacing. Within it's limits it's ok. >little network activity. On other larger NT server networks I work on I >have to reboot the server as often as once per week to maintain decent >availability. I think it has to do with hash tables NT creates to deal One thing you have to watch for is "memory leaks" from things like ODBC drivers and the like that don't work right. We did have one drier that would take the server to it knees about every three days if we let it. the fix for that (kluge in my opine) was to stop that process every night and restart it. >with high-demand network activity. My guess is NT does not deallocate the >ram allocated to these processes which eventually degrades network >performance to the degree that the admin must 'deallocate' this ram by >manually rebooting the server at intervals defined by the level of use the >server receives. Driver with memory leak is the problem. >I could imagine a 9x system being stable despite it's poor foundation if >that foundation were made of diamond. This would not be an estheticly >pleaseing operating system but it could be made stable if it's core were >very strong. My main objection to 9x is that application installs replace >core components with non-tested ones ( at least in that given >configuration ). In other words, each Windows machine is unique in it's >core configuration. This is a dangerous design approach and invites >nearly infinite opportunities for incompatabilities and general >instability. Yep, lots of poor apps tend to really muck up the systems as they load old .dlls and other bad things. there are a million SPs for fixing core stuff that get trashed when you install something with copies of old DLLs. The above behavour is not limited to MS OSs but more common due to it's widespread use. >I don't blame you. Linux is not ready for Prime Time on the desktop. It >lacks the level of user-pretties and network configurability I would look It's got some things I like but I could not use it at work on the desktop as the average user there would not fare well (some have difficulty with win9x that is not OS fault!). >for in a desktop environment. My personal choice would be OS/2 for just >about everything desktop related. I wish IBM had the guts to market it. It's still not adaquate in my book. Any OS where the common user is the unix equivilent of superuser (root) by default or lack of protections is a problem in my book. The classic case is the other days when a user decided to copy a colder to the desktop... save for it was C:\WINDOWS. It did a lot of damage to that system. As sysadmin I'd rather see something like VMS where the user has their sandbox where they can trash and slash but the rest of the box is off limits. Right now the common OSs that can do that (more or less) are Unix and clones based on the unix model, WinNT and VMS. I'm sure there are others but, Win9x and MacOS, DOS and OS2/warp do not meet this criteria. Allison

26 years, 2 months

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I wrote 'Nuke Redmond'

by allisonp＠world.std.com

>That is backwards. The law, and common sense, requires >that you already have to have significant market share >to have monopoly power. Monopoly power is the ability >to control prices and exclude competition by virtue of >monopoly power. To me, the question is, how did MS >achieve that power in the first place. There is no >doubt that once they had the power they abused it -- It started with the licensing of DOS at the vendor level to the extent that if the hardware could run dos it had to be licensed. Some of us may remember the early machines the the "jumper" to disable dos. the is was to inhibit the CP/M follow ons, Netware and the unix varients. This first lockin of the vendors was exploited for the windows software that followed. It would also get the DOJ to issue an aggreement back some years for MS to stop this monopolistic activity. Thats how the got the power. The money came from the applications and MS was known for them and never cheap. Allison

26 years, 2 months

5
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VCF Europe?

by foxvideo＠wincom.net

Has anyone had a progress report on happenings at the VCF Europe? Regards Charlie Fox Charles E. Fox Chas E. Fox Video Productions 793 Argyle Rd. Windsor N8Y 3J8 Ont. Canada email foxvideo(a)wincom.net Check out "The Old Walkerville Virtual Museum" at http://www.skyboom.com/foxvideo and Camcorder Kindergarten at http://www.chasfoxvideo.com

26 years, 2 months

3
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VCF Munich!

by dastar＠siconic.com

I just returned home from my voyage to Munich for the VCF 1.0e and I am happy to report that it went rather well, in fact as well as expected. A little over 100 people came through over the course of the weekend. There were some great exhibits, including a complete VAX 11/850 setup and running, an Atari 1450XLD (only a few of these exist), some rare East German microcomputers, and even an Inca Quipu! We somehow managed to execute the Nerd Trivia Challenge despite numerous technical challenges. Our own Philip Belben took 2nd place. Congratulations, Phil! After the event was over, Hans, Philip and myself went on a three day whirlwind tour around Germany. Three days couped up in a car with a wacky Bavarian is more torture than anyone should ever be subjected to, but Philip and I managed to make it through the ordeal without too many psychological scars (I enter long term counseling tomorrow). Of course you may get slightly differing opinions from Philip but pay him no mind ;) Somehow we didn't find time to visit the Deutches Museum in Munich to see the Siemens 2002 (worlds first transistorized computer) but we did make it to the Technik Museum in Berlin and saw many fine Zuse machines, including a replica of the Z1 and a Z23, along with some other special purpose machines. It was a fantastic exhibit. I got digital photos of the machines and will be posting them to the VCF website shortly (I'll announce when they are up). We then made it over to the Heinz Nixdorf Museum in Paderborn and I must say I am impressed! What an excellent place. They had excellent exhibits starting with humankind's earliest attempts at writing and counting and worked up through various stages of technological innovation to the computers. There were all sorts of excellent machines on exhibit but we weren't allowed to take any photos :( The place was crawling with spooks ready to give you a sound drubbing if even the thought of taking a picture crossed your mind. Always the rebel I did manage to snap a picture of one of the exhibits anyway. Nyah. Anyway, highly recommended. We bought some good books, including an autobiography of Konrad Zuse which I had the pleasure of reading on the long flight back. What an amazing story! We also scored some prints of Zuse's, one of which was even signed by him when he visited the museum before he passed away. I spent the last two days in Oxford, England, where I delivered two talks on computer collecting. I was able to meet our own John Honiball there as well as pick up several good books from a used book store. I didn't have time to search for any old computers but I did make contact with a Physics professor there at Oxford who has in his own collection several of the DEC machines the university has discarded over the years, including a PDP-8 (i.e. "straight 8"). He said he knows of some DEC machines (an 11/23 was specifically mentioned) that are to be discarded soon so if anyone has any interested in making contact with him (I'm sure he'll be a continued source of good stuff) then contact me privately and I'll pass on his contact information. I also managed to find some neat-o stuff in Munich at a flea market we went to before the VCF. I got an Atari 520ST+ (only because I don't have a '+' model), a Sharp PC-1500 with expansion chassis and case, and a Siemens teletext terminal that was used in Germany throughout the 80s (similar to the French Minitel or the English Prestel systems). Now that VCF 1.0e is a part of history, I will start ramping up production for VCF 4.0. My interest in producing an East Coast USA event is also growing, and I will be contacting those who have offered assistance in the coming weeks to determine if a summertime event would be feasible. As well, if there is anyone in the New England region who would like to assist then please contact me privately. Thanks to everyone who helped with VCF 1.0e, and of course extra- special thanks go to Hans Franke for making it a reality. I also thank him for teaching me some particularly juicy German. As my reportoire of languages grows I will soon be able to insult and offend people the world over! Pictures of VCF 1.0e will be posted to the VCF website soon. Stay tuned for details. We'll see you all at the next VCF! Sellam International Man of Intrigue and Danger ------------------------------------------------------------------------------- Looking for a six in a pile of nines... VCF Europe: April 29th & 30th, Munich, Germany VCF Los Angeles: Summer 2000 (*TENTATIVE*) VCF East: Planning in Progress See http://www.vintage.org for details!

26 years, 2 months

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The Shell Game

by ckaiser＠oa.ptloma.edu

Well, marginally related to classic computing, I put my in-progress directory of dialup shell providers on the Net at http://www.armory.com/~spectre/shell/ I'm still acquiring providers. Let me know who you use, if any. I'm hoping to use this as a resource for people with other computers who still want to use them for at least terminal access. -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser * Point Loma Nazarene University * ckaiser(a)ptloma.edu -- Hidden DOS secret: add BUGS=3DOFF to your CONFIG.SYS. ----------------------

26 years, 2 months

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I wrote 'Nuke Redmond'

by fmc＠reanimators.org

Jim Strickland <jim(a)calico.litterbox.com> wrote: > Ok, I'm a dolt. I get 4 mailing lists, 3 are about BeOS and this one. If > my comments about Gobe Productive, etc, don't make any sense, it's because > they're BeOS specific - it's been a busy day and I mixed up what group I was > writing to. Sorry. Oh, you get M*cr*s*ft advocacy and chatter about this week's VBScr*pt/W*rd macro "virus" on your other mailing lists too, so you can't tell the difference between them anymore either? You have my sympathies. -Frank McConnell

26 years, 2 months

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Ford's '60s computer?

by xds_sigma7＠hotmail.com

Umm, just a guess, but I would imagine in the late 50's/early 60's they probably had a Philco 2000 of some sort, since Philco was/is a division of Ford... And yes, they were later a Multics shop, up into about the mid to late 80's or so, I think. Will J ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

26 years, 2 months

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I wrote 'Nuke Redmond'

by gregorym＠cadvision.com

-----Original Message----- From: Chuck McManis <cmcmanis(a)mcmanis.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Sunday, May 07, 2000 6:12 PM Subject: Re: I wrote 'Nuke Redmond' >Has anyone mentioned WordPerfect. You know the Word processor that had >over 90% of the market until Microsoft changed their OS licensing terms >such that their OEMs had to bundle either Office (or later Works) with >every copy of Windows they sold. > >--Chuck Sorry, but WordPerfect contributed a lot to their own demise. First, they abandoned many of the non-Windows platforms that made them attractive in the first place (e.g. DOS, Amiga, NeXT). The ability to exchange documents between different platforms was a huge win for WordPerfect, and they threw it away. Second, when they belatedly jumped on the Windows bandwagon, they produced a buggy, unstable, all but unusable version - WP for Windows 6.0. The time it took them to fix all of the problems with WP 6.0 enabled MS-Word to catch up on features, when WP had been demonstrably better up until then. The corporate merry-go-round that saw WordPerfect go from an independant company, to Novell, to Corel probably didn't help either. Mark.

26 years, 2 months

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OT: Re: Welcome to classiccmp

by jhfine＠idirect.com

>majordomo(a)classiccmp.org wrote: > Welcome to the classiccmp mailing list! Jerome Fine replies: Hi all, just wanted to confirm to myself that I am back on the list.

26 years, 2 months

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MVME Docs/Data Needed

by kyrrin＠bluefeathertech.com

Hi, folks, Got some good ones here. Recent acquisition activity has netted me a nice Motorola MVME945B chassis stuffed full of cards. Any docs or data I can get on said chassis would be most welcome. Jumper diagrams are what I need the most. In addition, I have some boards here that I don't recognize, including: MVME372A (three of 'em). MVME333-2 (one) I seem to recall, from my field service days at Motorola, that the big 'M' published a field engineer's guide that showed specs and jumper assignments for the entire MVME line. Perhaps I can snare one of these? Thanks in advance. -=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner/Head Honcho, Blue Feather Technologies (www.bluefeathertech.com) kyrrin(a)bluefeathertech.com "SCSI Users, Unite! Beware the IDEs of March!"

26 years, 2 months

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I wrote 'Nuke Redmond'

by allisonp＠world.std.com

>win9x, Unices, Vaxens, Linux is more of nerd's dormain and clueful >users who know better to call for help first if some kind of problems >becomes out of their depth understanding how to deal with it. This left me mystified. VAX/vms running DECwindows is a good interface without give away the farm for the user. It's user proof. The system admin part is definately not for he average user but then neither is linux, unix or NT. Its possible to build a OS that has the needed protections that seem to be missing from Win9x. Allison

26 years, 2 months

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Ford's '60s computer?

by pbboy＠mindspring.com

Does anyone know what computer Ford Motor Company used in the 1960's? I've read that Shelby used a computer to find the proper location for, among other things, the upper control arm on the '65 Mustang for his GT350 and used one to help design most, if not all, of his other creations' critical parts. I've searched IBM (must've been IBM!) and Ford and came up with nothing. Although IBM's timeline has the 608 ('57, calculator),1401 ('59), Stretch ('61), SABRE ('62) and the System/360 ('64), they don't give detailed descriptions. I don't know what the others are, but I've read a bit on the 360. I'm willing to bet it was the 360, but I'm not sure how often a company would buy a computer considering the price of the computers then. But considering the severe race competition between the Big Three (and the world), in that era, I'd imagine they'd pay almost anything to gain any edge over the competition (Win on Sunday, Sell on Monday). Anyone know for sure? Did Ford use any other computers before then? What about other car manufacturers?

26 years, 2 months

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Couple of cool HP 110/150 finds

by fmc＠reanimators.org

Joe <rigdonj(a)intellistar.net> wrote: > >HP Series 100 Communicator Volumes 7-12 (very cool) > > Now those are unusual. I have two volumes but I've never been able to > find any more of them. Where did you find them? HP used to ship the current "Series 100 Communicator" in the box with your new Series 100 (i.e. 120, presumably 125, and 150) computer, or more likely in the box with its keyboard. I don't remember seeing them with 110s or Portable Pluses, but that could just be my defective memory. If you liked it and wanted more you had to buy a subscription. Given that it was mostly filled with new-product announcements for stuff that we either wouldn't use or could ask our sales rep about, and usage tips that weren't especially non-obvious, we didn't bother. -Frank McConnell

26 years, 2 months

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Great week

by jrkeys＠concentric.net

This has been one of those dream weekends, all week I did not pick a thing and then starting Friday night it was wild. I was at a callers house to pick up some items and got there at 6:30pm and left at 11pm with many items still left there. My van was full even in the front seat. I got alot of early colorcomputer stuff; manuals, tons of software, 3 systems. I got NeXt software and manuals brand new unopened boxes, same for Mac software and manuals. This guy had many items that he had been collecting over the years. Saturday I went to a police auction and got several notebooks, complete systems, parts, manuals it was great. I will be putting out a better list as I go through the items. I hope everyone had a good computer hunting weekend. John

26 years, 2 months

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RK05 cable

by wilson＠dbit.dbit.com

On Sun, May 07, 2000 at 07:50:01AM -0500, Lawrence LeMay wrote: > Someone mentioned that the cable for connecting a RK05 to a PDP 8/E > is different than the one for a PDP 11/45. Is this correct, and if > so does anyone know the DEC name and part numbers for the cable > that is used with a PDP 8/E? I *think* the paddle card is M993, but could be wrong. The entire assembly including the ribbon cables (which connect to the paddle board using soldered IDC endings rather than the usual Berg connectors) has another #, 54-class I think????? IIRC the reason it's different (besides the fact that the RK8E plugs into regular Omnibus slots and wouldn't be able to dedicate a backplane slot to the Unibus style cable that the RK11D uses) is that the RK8E uses the old individual drive select lines (for four drives max), not the new encoded drive selects (for eight drives). Could be remembering wrong though. Anyway this only matters between the controller and the first drive, after that you can connect the other drives using Unibus cables. John Wilson D Bit

26 years, 2 months

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RK05 cable

by lemay＠cs.umn.edu

Someone mentioned that the cable for connecting a RK05 to a PDP 8/E is different than the one for a PDP 11/45. Is this correct, and if so does anyone know the DEC name and part numbers for the cable that is used with a PDP 8/E? -Lawrence LeMay

26 years, 2 months

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FREE! Siemens TTY and converter (fwd)

by jpl15＠netcom.com

This might be of some interest to European Classiccmpers... respond directly to the original poster, and it looks like you will have to arrange shipping, but hey, it's free... Maybe someone in the Tennessee area can cache it..? ---------- Forwarded message ---------- Date: Sun, 07 May 2000 10:32:11 -0500 From: Tom Norris <badger(a)telalink.net> To: greenkeys(a)qth.net Cc: boatanchors(a)theporch.com, BASWAPLIST(a)foothill.net Subject: FREE! Siemens TTY and converter FREE FREE FREE Siemens T100 ( ASR ) teleprinter, several rolls of punch tape Siemens FSE-1306 converter with full spares kit including spare tubes and CRT. Both items refurbished 1987, both look like new. There may be some literature, most likely just an ops manual on one or both. Currently mounted in my ex-Bundeswehr radio truck, and I need the stuff out of the way to redo the truck for Field Day use. Photo at http://www.telalink.net/~badger/tty_dec.jpg After a week, they go to the trash, I hate to trash the stuff but am absolutely running out of room and the gear needs 220VAC 50Hz, which I don't have. ( no BA guys, the tubes and good parts stay with me, I have not got totally bonkers ) Is in Manchester, TN are, near Nashville. No shipping, sorry. Tom Norris KA4RKT

26 years, 2 months

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PDP8/E peripherals

by lemay＠cs.umn.edu

Ok, i finally found the guy at his office (we work for the same department here at the university ;) and had a chat. Looks liek he might try to get me the pdp8/e cpu (without any boards) and the boards if he can find the box that they are in. This leaves 2 RK05's and a Dectape unit.. is anyone willing to pay a reasonable amount, AND pick this stuff up in minneapolis, AND do it pretty quickly? I know Dectape units are worth about $1000, so this is a worthwile thing to get if you have teh space for it (the curse of working for the university, is that they dont pay me enough to be able to afford the space for all thsi stuff)... If you want this, speak up and i'll go see what i can arrange with him. i want the cpu, and boards if they are found (my 8/e has no interface boards, and front panel is damaged, and power cable is cut, as you might recall...) -Lawrence LeMay

26 years, 2 months

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11/83 backplane info needed

by CLASSICCMP＠trailing-edge.com

>I got an 11/83 in a rack mountable box (5 1/4"), and I would like >to know how many of the slots are type A/B and type C/D, as I have >a spare 11/83 cpu and a spare 1Mb mem. board, and they are >of the types AB & C/D. > >The backplane is identified as H9278-A and has 8 slots. First clue: for just about anything Q-bus, you can find the answer in the Micronotes. They're online at http://metalab.unc.edu/pub/academic/computer-science/history/pdp-11/ just click on "Micronotes". What you're looking for is specifically in Micronte #5, _Q22 Compatible Options_. It tells you Micro/PDP-11 H9278 4 X 3 Q22/CD and 4 X 5 Q22/Q22 Backplane In other words, just the standard BA23 backplane, the first 3 slots are AB/CD slots, the remaining 5 are AB/AB in a serpentine pattern. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

26 years, 2 months

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Equipment Available

by af-list＠wfi-inc.com

Hi all, With no small amount of regret, I am liquidating most of my collection in order to focus my attention on a personal matter which is going to require 100% of my time and energy. Thank you all for the sense of community and spirit of comradery here for the past few years. I'm hope to still hang around here and there (VCF, I'll be there!) but will not be actively collecting. Believe me, this decision was not made lightly. My classic computing page will remain as it is, and the list archives will remain there, as will the documentation that I've already scanned. As far as current transactions, I will complete them as soon as possible (Sorry Rich, others). Especially the couple of people that I still owe shipping to, I'm trying to get my ass in gear here... Ok, on to the good stuff. I will ship small items and books, anything more than a few pounds will only be available to someone who wants to pick it up in Glendora, CA or pay to have mailboxes etc pack and ship it. Books (cost is 1.5 x shipping amount): --------------------------------------------------------- Apple II Applesoft Basic Programmers Reference Manual The BASIC Handbook, David Lien Technical Aspects of Data Communication, Digital Press Inside the IBM PC, Peter Norton Problem Solving Principles for Basic Programmers, William Lewis Fundamentals of Structured COBOL (School Textbook) COBOL Wizard (School Textbook) PASCAL, Academic Press (School Textbook) The PASCAL Handbook, Sybex Pascal User Manual and Report, School Text The Debugger's Handbook - Turbo Pascal, McKelvey PASCAL, Findlay and Watt (School Text) UCSD Pascal, (School Text) Elementary Pascal (School Text) Oh! Pascal! (School Text) Turbo Pascal version 3.0 Reference Manual, Borland Introduction to Turbo Pascal, Sybex Turbo Toolbox Reference Manual, Borland DON'T! Or How To Care For Your Computer... Writing in the Computer Age, Fluegelman Soul of CP/M, Waite CP/M Assembly Language Programming, Barbier CP/M and the Personal Computer, Dwyer CP/M Word Processing 68000 Assembly Language Programming, Leventhal Programming in Assembly Language: Macro-11, Sowell Electronic Data Processing, Irwin (1961!) MP and Periph. Handbook, vII - Peripheral, Intel Corp. MC68020 32-bit MP User's Manual A couple of PDP Handbooks that I can't find right now...(1981-ish) Some Micro PDP Docs (look at www.retrobytes.org - I think they're all there) Computer Systems (Free to good homes, pick-up only): --------------------------------------------------------- 6' Rack - VERY Sturdy Incomplete PDP 11/20 - 3 cabinets (Possibly spoken for) Plessey 11/23+ compat (MicroII) - rack-mount w/2 RX01's, external twin RX02 rack unit, Power Control unit (rackmount) HP3000/37 (Micro3000XE) w/2 drives (3 units total, size of double file cabinet each), 9-track 1/2inch tape drive, dot-matrix printer/cabinet, Y2K MPE FOS tapes. A bunch of 9-track tapes with it. Kaypro IV Broken Atari 800 w/2 broken 810 drives (I know, garbage). Atari 1027 printer with gummy wheel. CX-80 keypad. Maybe an 835 modem. Cadnetix Server, Sperry 286 terminal for it, ethernet cable, monitor, kbd/mouse, Cipher 9-track drive, tons of docs (PLEASE SAVE THIS ONE! I'll hold it for years if I have to, but I don't want to.) Michael Grigoni has priority on this, if he wants any of it... Mac LCII, no HD, kbd/mouse,ram. W/Mono monitor. Other stuff (asking price indicated, make any offer:) --------------------------------------------------------- *The reason I have a few dollars as an asking price is that I either paid real money for the item, or it's something that I'd like to see go to someone who really wants/needs it.) SWP ATR8000 - CP/M computer or serial/parallel interface w/print buffer for Atari Computers - asking $50 Dilog SQ706A QBUS SCSI Card - $25 Emulex TC03 QBUS Pertec Controller - $10 DSD MFM QBUS Card - 1.5 x shipping DEC DEQNA Ethernet Card w/cable and manual - $10 DEC M8043 Serial Card - 1.5 x shipping DEC 11/73 CPU w/FPU - $10 DEC RQDX3 w/manual - $10 RT-11 v5.4B on RX50 floppy, complete distro - $10 OK, that's it for round one. After I sort out this mess, I'm sure lots more stuff will come trickling down... Cheers, Aaron

26 years, 2 months

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COSMAC 1802 Simulator

by dogas＠leading.net

Tonight I added the mini-assembler and memory block saves&loads to the 1802 simulator. The 95/98/nt console binary and source-code are at: http://users.leading.net/~dogas/classiccmp/cosmac/vcosmac.htm >Allison > >Good runs under W95/nt then, have that running. >M!... Ah UT4. have manual. heh.. early influences... >Wheres Bin/CPP for it? Up there. Let me know if it doesn't do what you think it should. Thanks - Mike: dogas(a)leading.net > >Last emulator for 1802 I'd played with was z80 based, even on a 4mhz z80 >it was faster than 1802. I wonder where I put that. > >

26 years, 2 months

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"Investment Grade" Classic Computers

by jeff.kaneko＠juno.com

Guys: I'm faced with a dilemma, and I'm polling for opinions. Some time ago, I swore I would never again publicly broadcast (via this ML) ads for computers that could be considered "Investment Grade". Those of you who have been around long enough know what I'm talking about; a machines that tend to fetch an obscene amount of money, despite the general opinion that they really aren't worth that much. The general objection is that such sales unreasonably inflates the co$t of our hobby, so we can't afford it anymore. The dilemma is this: A friend of mine has such an "Investment Grade" machine; and he wants to sell it to the highest bidder <cringe>. Now I'm faced with two bad choices: Put it up on e-bay, or post it to this forum. I dislike e-bay for what it did to our hobby. I'm not comfortable posting it here, because I have a deep respect for the collectors/hobbyists here (of all stripes), and their opinions on the effects commercialization has had on our hobby (not to mention my own conscience). My friend *specifically* requested I post the ad here, as he was quite pleased with the result, previously. I will only do this if you guys feel this is the appropriate thing for me to do: I post the description, interested parties submit bids, *OFF LIST*. What say you all? Thanks. Jeff ________________________________________________________________ YOU'RE PAYING TOO MUCH FOR THE INTERNET! Juno now offers FREE Internet Access! Try it today - there's no risk! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

26 years, 2 months

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[KULUA] Nightline (fwd)

by allisonp＠world.std.com

You mean like the following... VMS standard greeting: Welcome to VAX/VMS on node Piper Morphed to: Piper, no trespassing. Abusers will be persecuted! >BTW -- if FreeVMS ever comes out in intel this box will run it. I keep waiting. In the meantime I have a VS2000 and 3100s thats smaller than most PCs. >bpechter(a)monmouth.com | Microsoft: Where do you want to go today? > | Linux: Where do you want to go tomorrow? > | BSD: Are you guys coming, or what? Add VMS: Waiting! Allison

26 years, 2 months

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the latest virus

by allisonp＠world.std.com

>Don't laugh... I still appreciate my AMD 5x86-133 running msdos 6.22 and >WfWg 3.11..... Defiinitely and IE-free zone!!!! :-}) > >Stan Thats a fast system. When you consider that by just running IE4.01 instead of 5.0 you've reduced you footprint and exposure it's something. Also if your apps don't need it Pulling VBA300.dll helps as thats needed to execute VB scripts. You could also pull IE and use Netscape, that works well. Then again you could run dos6.22 and Newdeal software (www.newdeal.com) and get all the stuff without the disk footprint. Allison

26 years, 2 months

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[KULUA] Nightline (fwd)

by ghldbrd＠ccp.com

Hello group, Here's something we all knew already, but we need to educate the brainwashed masses about Microslop . . . Last sentence says it all. *** FORWARDED MESSAGE *** Original author: trp0 Written on: 05-May-00 *** Beginning of forwarded message *** Last night, Ted explored the "I Love You" crisis with three "computer virus experts". I'm a little fuzzy on who everyone was for sure, but I know one was a computer crime prosecutor, another was Thrilling(sp?) from Symantec(who totally reminds of this one stand-up comic guy...looks and acts just like the stnad-up....maybe secret alter ego), and I don't remember the other guy's functions at all. All three were going on and on about how users needed to protect themselves with better and more anti-virus software as well as putting up home firewalls! It struck me as odd that they were trying to "educate" people about how to be safe without ever mentioning the fact that nearly all of the nasty email viruses are confined to Microsoft products. I would have liked to have seen a discussion about why MS doesn't consider these things as big hole in their OS. Seems to my like a large majority of even the standard viruses live in the MS realm. Wouldn't it strike you as a little alarming if the product you are turning out is the target of so many easily constructed destructive programs because of the way your product is designed and implemented? Anyway. It was just strange that they were emphasizing that basically all the world's email systems were brought down because of this thing without even noting things such as alternatives that wouldn't have these problems....instead trying to scare the public into consuming more unecessary software to patch up a leaky operating system with third party products instead of encouraging people to get a brain and exercise their free-market will to force product improvement. *shrug* T --- This message brought to you by: trp0(a)falcon.cc.ukans.edu ..and the voices in his head. [Bucket of Truth] "Don't you think I know that!?!" - UCB WebAccess: http://www.magicalbox.com/~trp0 ------------------------ end transmission .... *** End of forwarded message ***

26 years, 2 months

5
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HP calculator thermal printheads (HP82143, etc)

by pete＠dunnington.u-net.com

On May 6, 0:24, Tony Duell wrote: > On Fri May 5, 23:16, Pete Turnbull wrote: > > > Has anyone here managed to mend a printhead like this? > > > > No, but could you use silver-loaded conductive paint? > Yes, I'd thought of that (and I keep a bottle in my tool box). > > Problem is, there's a distinct crack to bridge where the 2 parts have > been stuck together,so the paint may well not last too well. Depends on what stress it might be subject, I suppose. > Worse than that, the printhead is 1/4" wide, and there are 8 tracks in > that width. I don't fancy trying to paint that lot without shorting at > least 2 of them together... Soldering on that pitch I could manage, > though, if only the solder would 'take'. Ah. Given the thickness of the paint, painting tracks would be difficult, even with a good-quality fine brush. The only other suggestion I can think of, is to paint a wide strip, covering all 8 tracks, and then use a scalpel blade (and some patience) to gently scratch gaps between them. -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 2 months

5
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Equipment Available

by allisonp＠world.std.com

If you still have it, I'd love to have this one. >Programming in Assembly Language: Macro-11, Sowell Allison

26 years, 2 months

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