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

by sales＠elecplus.com

http://en.wikipedia.org/wiki/IBM_PC_Convertible If it is supposed to look like this, then mine is missing the keyboard, floppy drives, and prob a few other things. There is a 256K memory card in it. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3392 / Virus Database: 3211/6589 - Release Date: 08/19/13

13 years

3
3
0 0

old laptops from 286 on up

by sales＠elecplus.com

The majority of the laptops have been shipped off. I saved some I thought were worth keeping. Dell from 286 thru 486, complete, good screens, prob missing hard drives. Compaq from SLT286 thru P1, complete, good screens, prob missing hard drives. Toshiba Satellite, old series, complete, good screens, prob missing hard drives. IBM from 286 on up, good screens, some have hdd. AC adapters are avail for most models. If you want some of these, please message me off line. Sorry I don't want to trade, but I have 10K sq feet of old stuff here J Cindy Croxton _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3392 / Virus Database: 3211/6589 - Release Date: 08/19/13

13 years

1
0
0 0

No subject

by tosteve＠yahoo.com

http://bitpig.com/temp/apple-iigs-manuals.jpg

13 years

1
0
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Update -- IBM S/34 Must Go

by chd＠chdickman.com

On Sat, Jul 13, 2013 at 10:27 AM, Charles Dickman <chd at chdickman.com> wrote: > I need to rid myself of an IBM S/34, (4) 5250 terminals and a printer that > I have. I sold the house that it is stored at and closing is in 30 days. > One way or another it must go. > > Pictures: http://www.chdickman.com/IBM/ > > The documentation is spoken for, but the hardware is available to anyone > that wants to come and get it (Ohio, USA 45865). The thought of breaking it > for scrap does not appeal to me all. > > Its gone. All 1300 lb of it. A recycler gave me steel scrap price for it, about $75. I'll get in touch with a couple of you regarding some of the items that I kept. -chuck

13 years

2
1
0 0

DEC LCG- KA, KI, KL etc

by useddec＠gmail.com

Does anyone have or know of any available anywhere? Thanks, Paul

13 years

24
40
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HP 98203 keyboard "knob" debugging

by derschjo＠gmail.com

Thanks to a tip froma list member, I managed to snag a compatible keyboard for my HP 9816 -- a "Nimitz" class keyboard, the 98203B(http://www.hpmuseum.net/display_item.php?hw=682). It works fine (though it dwarfs the machine it's connected to) except that the "knob" in the upper-left does not appear to function. I've looked for service manuals but I can't find anythingthat's particularly detailed. I've partially disassembled the knob unit-- there's a glass/ceramic disc with radial markings, and with what appearsto be an incandescent bulb on one side and a pair of sensors on the other. The bulb does not appear to be illuminating when powered up (it does seem to be getting 5V),so this seems suspect but I don't know whether it's supposed to be emitting visible light or not. I also don't know what to replace it with. Anyone repaired one of these before? I'm guessing Tony'll havesome input here :). Thanksas always, Josh

13 years

3
4
0 0

IBM 5140 PC Convertible pics

by sales＠elecplus.com

https://plus.google.com/photos/106111250846948401252/albums/5913905172430530 721?banner=pwa Not exactly complete! Anybody want it? If not, going to scrap. Cindy Croxton _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3392 / Virus Database: 3211/6589 - Release Date: 08/19/13

13 years

1
0
0 0

strange OLD IBM PC Convertible

by sales＠elecplus.com

One of the "laptops" that came in this batch is an IBM PC Convertible. It is in pieces, but looks repairable. The very back piece on the top is missing. There is a slender carrying handle. The model number on the bottom is 5140. There are what looks like 2 each 5.25" floppy connectors, but no hdd connector at all. There are NO drives in the unit. Apparently there was a modem at one time, since there is a modem sticker on the bottom. I can post pics, if needed. If somebody wants this thing, email me off list with offers. About 5 pounds UPS ground shipping. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3392 / Virus Database: 3211/6589 - Release Date: 08/19/13

13 years

1
0
0 0

IBM 701C laptops are SOLD

by sales＠elecplus.com

Sorry folks, already claimed. Cindy Croxton _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3392 / Virus Database: 3211/6587 - Release Date: 08/18/13

13 years

1
0
0 0

IBM laptop 701C butterfly kbd

by sales＠elecplus.com

So far 2 laptops, 1 boots, the other does not. Still sorting 16,000 pounds of laptops.. Cindy Croxton _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3392 / Virus Database: 3211/6585 - Release Date: 08/17/13

13 years

2
2
0 0

Tektronix analyzers

by sales＠elecplus.com

Not affiliated with this seller, please contact them directly if you want the equipment. We're looking to sell three Tektronix Spectrum analyzers that we recently received. Items are in good condition and power one without issue. We received them from a known working environment. Models are Tektronix 2782, Tektronix 494AP Programmable Spectrum Analyzer and Tektronix AM700 Audio Measurement Set. If interested, please email me at techsales at pcretro.com with your offers. Can supply photos. _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3392 / Virus Database: 3211/6587 - Release Date: 08/18/13

13 years

1
0
0 0

Looking for Axil 320 material

by aperry＠snowmoose.com

I added an Axil 320 to the collection yesterday. It had been sitting at the local computer recycler for months, so I finally made make an offer. It is a Sun SPARCstation 20 clone. It has two M61 processor modules and 512M of memory. It doesn't have a frame buffer, so I am running it headless (using a 90s vintage Mac laptop as the serial console) until the CG6 that I ordered arrives. Does anyone have any material on Axil or the 320 model? Not much is coming up searching the web. alan P.S. An old Wang system has been at the recycler for even longer than the Axil, if anyone is interested. And a large (like the size of my 11/750) IBM tractor feed printer has shown up since my previous visit.

13 years

1
0
0 0

cctalk Digest, Vol 120, Issue 25

by saquinn624＠aol.com

Josh writes: >I've partially disassembled the knob unit-- there's a glass/ceramic disc >with radial markings, and with what appears to be an incandescent bulb on >one side and a pair of sensors on the other. The bulb does not appear to >be illuminating when powered up (it does seem to be getting 5V),so this >seems suspect but I don't know whether it's supposed to be emitting >visible light or not. I also don't know what to replace it with. > >Anyone repaired one of these before? > >I'm guessing Tony'll havesome input here :). > >Thanksas always, >Josh I haven't repaired (or even seen) one, but the limiting factor will be what the sensors can detect. If you can get a part number you can look them up and see if you can get a LED that will emit light of a detectable wavelength.

13 years

1
0
0 0

FREE: Cromemco manuals and floppy disks

by tosteve＠yahoo.com

Yours for the price of shipping (located in southern California 92656): Cromemco Manuals: 1. CDOS - Disk Operating System 2. ZPU Central Processing Unit 3. Text Editor 4. Screen Editor 5. LISP 6. COBOL Addendum 7. Z80A Central Processing Unit ?8-inch floppy disks - working status unknown: 1. CP/M Source 2. CDOS Operation System (1982) 3. COBOL (1979) http://bitpig.com/temp/cromemco-manuals.jpg http://bitpig.com/temp/cromemco-disks.jpg

13 years

3
2
0 0

FREE: Cromemco manuals and floppy disks

by tosteve＠yahoo.com

Yours for the price of shipping: Cromemco manuals: 1. CDOS - Disk Operating System 2. ZPU Central Processing Unit 3. Text Editor 4. Screen Editor 5. LISP 6. COBOL Addendum 7. Z80A Central Processing Unit ?8-incg floppy disks - working status unknown: 1. CP/M Source 2. CDOS Disk Operation System 3. bitpig.com/temp/cromemco-manuals.jpg http://bitpig.com/temp/cromemco-disks.jpg

13 years

1
0
0 0

Wanted: TI microExplorer parts

by turing＠shaw.ca

I'm looking for a TI microExplorer main board, as mine died recently. [There was a dannydz in Vancouver who posted a few years ago about having one, but his e-mail no longer works, of course...] -- Norman Jaffe

13 years

1
0
0 0

Intel Intellec 4 MOD 40

by j＠ckrubin.us

Dave Larsen has one of these in his BugBook museum. No idea of the machine status or if Dave has the ability to dump the ROMs. Contact him through http://bugbookmuseum.blogspot.com/ Jack

13 years

2
1
0 0

A Layman's Guide to Write Precompensation

by philpem＠philpem.me.uk

Hi there, I think I've got the write precompensation stuff figured out (finally!) :) Back in 1983, Control Data (via their Magnetic Peripherals Inc. subsidiary) released an application note called "PLO and Write Precompensation for 5.25-inch FDDs". This has since been scanned and uploaded to Bitsavers (thanks again, Al!): <http://www.bitsavers.org/pdf/cdc/discs/floppy/77653447_5inchPrecomp_Aug83.p…> The interesting stuff starts on PDF page 31 ("real" page 28). There's a really good explanation of why peak shift occurs and why precompensation is needed. This includes diagrams of problematic bit patterns (both the original data bits and the MFM-encoded transitions) and shows which bit needs shifting. These patterns are: x011 x110 1000 0001 Which encode to MFM as: Input MFM coded Shifts Correction ----- --------- ------ ---------- x011 --> xx00101x --> Early --> Delay 250ns 1000 --> 01001010 --> Early --> Delay 250ns x110 --> xx10100x --> Late --> Advance 250ns 0001 --> 10101001 --> Late --> Advance 250ns * "Input" is the data before MFM encoding "MFM coded" is after MFM encoding has been applied "Shifts" is the direction in which peakshift will shift the transition The asterisk denotes the transition which must be shifted If you're working on raw bits, that's fine -- and indeed, this matches up perfectly with what's in the Western Digital FD179x-01 application notes (Figure 6: "Internal Write Precomp Algorithm") and Jean Louis-Guerin's WD1772 documentation. But what if we choose to feed the data to an MFM encoder (which converts every bit into two bits) and then process the output of that in a bit-serial manner? Well, in that case, we only need to match two bit patterns: 00101 --> Early --> Delay 250ns 10100 --> Late --> Advance 250ns * And thus this precompensation code was born: uint8_t shiftreg = 0; int n = 0; for (vector<bool>::iterator bit = bits.begin(); bit != bits.end(); bit++) { shiftreg = ((shiftreg << 1) | (*bit ? 1 : 0)); // The shift register delays the output by 2 bits if (n < 2) { n++; continue; } switch (shiftreg & 0x1F) { case 0x05: // 00101 (MFM x011 or 1000) - causes early shift printf("Early Shifted %d\n", shiftreg&4?1:0); break; case 0x14: // 10100 (MFM x110 or 0001) - causes late shift printf("Late Shifted %d\n", shiftreg&4?1:0); break; default: printf("Normal %d\n", shiftreg&4?1:0); break; } } Typical precompensation for 5.25-inch floppies, by the way, is 250 nanoseconds. I'm not sure what it is for 3.5-inch, or indeed for other data rates (if data rate has a bearing on peak shift). Enjoy! -- Phil. philpem at philpem.me.uk http://www.philpem.me.uk/

13 years

2
1
0 0

RL01/02 unit ID plugs

by roe＠liveblockauctions.com

I'm in need of unit id plugs 2 and 3 for RL01/02 disk drives, does anyone have spares they would part with?

13 years

2
2
0 0

Reviving a Compaq Deskpro/286

by jules.richardson99＠gmail.com

I picked up a Deskpro/286 the other day. It passes POST, and the hard disk (an IBM 0665 30MB F/H ST-412 unit) spins up and makes encouraging noises, but then it stops (after apparently trying to boot via floppy) with a "non system disk or disk error" message. IIRC, there's a setup utility on the Compaq DOS disks - does this include configuration of the hard disk? I wonder if the system's simply lost NVRAM settings and so the disk controller is trying to talk to the drive using the wrong geometry (although of course it could just as easily be a faulty or formatted drive). There's no obvious manufacturer of the combined floppy/hard disk controller board, but it's perhaps reasonable to assume that it's whatever was originally shipped with the system. If I do need the Compaq DOS floppies, does anyone have images available (3.5" preferred, but I think I have some spare 5.25" HD floppies and could put the Compaq's drive into my desktop PC temporarily to write them) thanks Jules

13 years

4
11
0 0

Hackspace open day

by lproven＠gmail.com

List members in that vicinity, of a soldering-iron-wielding disposition, might be interested to know that tomorrow is Open Day at London Hackspace. http://wiki.london.hackspace.org.uk/view/2013_August_Open_Day -- Liam Proven ? Profile: http://lproven.livejournal.com/profile Email: lproven at cix.co.uk ? GMail/G+/Twitter/Flickr/Facebook: lproven MSN: lproven at hotmail.com ? Skype/AIM/Yahoo/LinkedIn: liamproven Tel: +44 20-8685-0498 ? Cell: +44 7939-087884

13 years

1
0
0 0

Openstep on intel

by slandon110＠gmail.com

I've been able to successfully install openstep 4.2 on a dell gx110 by adding a matrox millennium II, 3C905b-tx for Ethernet and a soundblaster 16 pci. So with those 3 cards you should be able to install openstep 4.2 on any old pc. It supports up to 512mb ram and is super super fast. Compiling is crazy fast. So if you want to mess with openstep/ nextstep on the cheap this is the way to do it. I've also had it running on numerous thinkpads. A 570E 380ed and a 760 Ed. Sent from my iPhone

13 years

4
4
0 0

A Layman's Guide to Write Precompensation

by classiccmp＠philpem.me.uk

Hi there, I think I've got the write precompensation stuff figured out (finally!) Back in 1983, Control Data (via their Magnetic Peripherals Inc. subsidiary) released an application note called "PLO and Write Precompensation for 5.25-inch FDDs". This has since been scanned and uploaded to Bitsavers (thanks again, Al!): <http://www.bitsavers.org/pdf/cdc/discs/floppy/77653447_5inchPrecomp_Aug83.p…> The interesting stuff starts on PDF page 31 ("real" page 28). There's a really good explanation of why peak shift occurs and why precompensation is needed. This includes diagrams of problematic bit patterns (both the original data bits and the MFM-encoded transitions) and shows which bit needs shifting. These patterns are: x011 x110 1000 0001 Which encode to MFM as: Input MFM coded Shifts Correction ----- --------- ------ ---------- x011 --> xx00101x --> Early --> Delay 250ns 1000 --> 01001010 --> Early --> Delay 250ns x110 --> xx10100x --> Late --> Advance 250ns 0001 --> 10101001 --> Late --> Advance 250ns * "Input" is the data before MFM encoding "MFM coded" is after MFM encoding has been applied "Shifts" is the direction in which peakshift will shift the transition The asterisk denotes the transition which must be shifted If you're working on raw bits, that's fine -- and indeed, this matches up perfectly with what's in the Western Digital FD179x-01 application notes (Figure 6: "Internal Write Precomp Algorithm") and Jean Louis-Guerin's WD1772 documentation. But what if we choose to feed the data to an MFM encoder (which converts every bit into two bits) and then process the output of that in a bit-serial manner? Well, in that case, we only need to match two bit patterns: 00101 --> Early --> Delay 250ns 10100 --> Late --> Advance 250ns * And thus this precompensation code was born: uint8_t shiftreg = 0; int n = 0; for (vector<bool>::iterator bit = bits.begin(); bit != bits.end(); bit++) { shiftreg = ((shiftreg << 1) | (*bit ? 1 : 0)); // The shift register delays the output by 2 bits if (n < 2) { n++; continue; } switch (shiftreg & 0x1F) { case 0x05: // 00101 (MFM x011 or 1000) - causes early shift printf("Early Shifted %d\n", shiftreg&4?1:0); break; case 0x14: // 10100 (MFM x110 or 0001) - causes late shift printf("Late Shifted %d\n", shiftreg&4?1:0); break; default: printf("Normal %d\n", shiftreg&4?1:0); break; } } Typical precompensation for 5.25-inch floppies, by the way, is 250 nanoseconds. I'm not sure what it is for 3.5-inch, or indeed for other data rates (if data rate has a bearing on peak shift). Enjoy! -- Phil. classiccmp at philpem.me.uk http://www.philpem.me.uk/

13 years

1
0
0 0

IBM binder

by BHuntsman＠mail2.cu-portland.edu

Random question of the day: I recently acquired a brand-new, shrinkwrapped copy of the System/370 Principles of Operation. Unfortunately it was sans binder. Anyone have an appropriate-era genuine IBM 3-ring binder they'd be willing to sell me? Thanks in advance! -Ben

13 years

1
0
0 0

Intel Intellec 4 MOD 40 ROMs

by kylevowen＠gmail.com

Hi all, Who else owns one of these development systems? Herb Johnson and I have been dumping the ROMs of our two systems, only to discover a lot of partial (and one total) erasure of our 1702As. My ROMs have lacked a sticker over the window since it left the Intel factory, but only one of them is completely erased, or perhaps it's defective. But there are many other inconsistencies in our ROMs, hinting at possible partial erasure over time. Herb has been writing up some of our discussion and findings here: http://www.retrotechnology.com/restore/intl4_roms.html It would be great to get some others with these systems to dump the ROMs. The listing for the monitor for the 8 MOD 80 is available, if I recall, but not for the 4 MOD 40. It's only a 2kB monitor, so it would be very limited on what it could do. My guess is that it could talk with a teletype and do some basic reading of paper tape into RAM. One thing to note is that the entire asynchronous translation is done without a UART! The 4040 decodes it directly by reading and writing from two pins on two different ports for keyboard and printer, and a third pin on a third port for reader run. That certainly takes some software to control. If anyone could help Herb and I out, we would appreciate it greatly. Kyle W4GNU

13 years

4
3
0 0

DEC LCG- KA, KI, KL etc

by bqt＠update.uu.se

On 2013-08-15 19:00, Ian King<IanK at LivingComputerMuseum.org> wrote: > On 8/12/13 10:05 PM, "Eric Smith"<spacewar at gmail.com> wrote: > >> >On Aug 12, 2013 9:22 PM, "Paul Anderson"<useddec at gmail.com> wrote: >>> >>Does anyone have or know of any available anywhere? >> > >> >The only intact KA and KI processors known to exist have recently been >> >accessioned by the Living Computer Museum in Seattle. It's perhaps not >> >impossible that another one might be out there somewhere, but if so, it >> >will be difficult to find, and even more difficult to pry loose. >> > >> >Eric >> > >> > > We have a KI and multiple KLs and KSs. We really want a KA, too.:-) -- Well, I know of at least one more KA, which is fully functional. But it's not likely to be handed out. The same person have one of ever type of PDP-10 built (with the exception of the PDP-6 and F-1, I think, and all more or less functional). Pontus Pihlgren<pontus at Update.UU.SE> wrote: > On Thu, Aug 15, 2013 at 04:12:31AM +0000, Ian King wrote: >> >We have a KI and multiple KLs and KSs. We really want a KA, too.:-) -- > How many KA was made? I think it was a couple of hundred? But I might be misremembering. I think the information is available online somewhere. Johnny

13 years

2
1
0 0

looking for a macro-11 disassembler

by bqt＠update.uu.se

On 2013-08-15 19:00, "E. Groenenberg"<quapla at xs4all.nl> wrote: > Hello. > > I need some help, as I'm struggling with some pieces of old > code of which I have only the macro-11 object files of. > > So, I'm looking for a disassembler which can read the .obj > file and create a .mac file from it. > I tried Google to find something, but alas, nothing to be found:( > > So, it there someone who has such a program? > > (BTW, I'm using RSX-11M V4 If you have access to DECUS tapes, you have both DOB and ORC which does what you are looking for. You should also be able to find them at ftp://ftp.update.uu.se/pub/pdp/rsx Johnny

13 years

1
0
0 0

I7000 - a brazilian CP/M computer

by alexandre.tabajara＠gmail.com

http://tabajara-labs.blogspot.com.br/2013/08/alguem-conhece-o-i7000-da-itau… This is the brazilian I7000 CP/M computer. If I'm not mistaken, the first computer from Itautec. I'll dump the EPROMs and make it avaiable soon. --- Enviado do meu Motorola PT550 Meu site: http://www.tabalabs.com.br

13 years

2
2
0 0

Giving away manual (MACRO/1000 Reference Manual)

by stephane.tsacas＠gmail.com

Hi, I found a copy of the MACRO/1000 Reference Manual RTE6/VM * RTE-XL * RET-A HP 1000 Computer Systems It seems to be an older version of http://www.hp.com/products1/rte/tech_support/documentation/documentation4/9… mine is dated August 1987 (second edition). If you want it, you pay shipping, from France (2Kg ~ 5.5 euros). -- Stephane FreeDonne <http://www.freedonne.org> Join FreeDonne - Rejoignez FreeDonne.

13 years

1
0
0 0

the first photo, what is it?

by sales＠elecplus.com

http://www.ierrecycling.com/Photos.php What is the item that is shown in the first photo in the series? I have not seen anything like it before. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3392 / Virus Database: 3211/6575 - Release Date: 08/13/13

13 years

5
5
0 0

FREE: computer data cassettes. Also Macintosh floppy disks

by tosteve＠yahoo.com

Free for the cost of shipping: 1. Small pile of old computer cassette tapes, mostly TRS-80 Model I; some VIC-20, etc. Most have program names written on the label. Working status unknown. 2. About ten pounds (30 inches stacked up) of Macintosh floppy disks for all kinds of different Macs. Some original disks, many copies. Probably little to none early 128K, 512K, etc. systems. Located in southern California 92656. See here! http://bitpig.com/temp/tapes.jpg http://bitpig.com/temp/disks.jpg

13 years

2
2
0 0

IBM 5160s available for local pickup only in MD until 8/20/13

by barythrin＠gmail.com

I'm reposting this for Bill since there hasn't been local interest in the last week. If you're local or near MD he's been trying to find a home for these but only has until 8/20/13. Yes we've tried to sweet talk him into shipping but he's been there and done that and is no longer interested in doing so. He can be reached on the vintage-computer.com forums. Here is his post: http://www.vintage-computer.com/vcforum/showthread.php?38549-Two-IBM-PC-XT-… "I have IBM 5160 XT's that have to go due to major downsizing. Pictures: http://www.wrljet.com/PCs/ The chassis and internal components of both are very clean. Some I have washed, some were new when installed. One cabinet is pretty good. One has some small rust spots. Both have 8087 math chips, and 640K on the motherboards. One motherboard came as a 640K, the other was 256K which I updated with bigger RAMs, added the missing mux chip, and changed the jumper. One has a single half height 360K floppy drive and working 20MB MFM hard disk. The other has two half height floppies and no hard drive. That one has a clone power supply. I think both have Mono cards, and one has a VGA. The mono and VGA don't co-exist all that politely. One has an Intel Above Board. And there's a Hercules graphics card in the box. FREE, LOCAL PICKUP ONLY in Bethesda MD USA (top of DC Beltway). These must be collected by Tuesday, 20 August to save them from the county metal/electronics recycling. Send me a private msg or email through the forum if interested. Bill " - John

13 years

1
0
0 0

Sun 3/80 mobo wanted

by michael.99.thompson＠gmail.com

> > >> From: Kurt Nowak <knowak at alumni.calpoly.edu> > Date: Tue, 13 Aug 2013 11:53:46 -0700 > Subject: Sun 3/80 mobo wanted > By chance does anyone have a Sun 3/80 mainboard lying around. I fired mine > up after years and it no longer powers up. I first thought it was the PS, > but I replaced it with a known working one from an SS1 and it still was > dead. Any possible ideas would be appreciated. > > -Kurt > I bet that one of the tantalum caps on the motherboard shorted. It is a common failure mode. If you leave it powered on for a while you will find it. -- Michael Thompson

13 years

3
2
0 0

cctalk Digest, Vol 120, Issue 20

by elson＠pico-systems.com

Date: Tue, 13 Aug 2013 19:53:50 -0500 From: Chris Elmquist <chrise at pobox.com> To: cctalk at classiccmp.org Subject: Re: KI front panel "VOLTAGE" adjust? Message-ID: <20130814005349.GG2148 at n0jcf.net> Content-Type: text/plain; charset=us-ascii OK. Thanks for all the input on the topic guys. It just struck me as interesting that they needed this adjustment on the front panel of the machine-- which implied that they needed to adjust it often. I guess it was a long forgotten art of making the machine easily servicable for their SEs :-) The IBM 360's (at least the mid-size and up) had voltage margin controls and a big meter on the front. Not adjusting mains voltage with a Variac, but there was a raise/lower knob and a power supply selector. The FE would run certain diagnostic loops while exercising the voltage margins. I believe the raise/lower knob ran motorized pots on the various power supplies in the back of the machine. Might have saved an hour over doing the whole procedure with a meter and screwdriver adjustment. I think that the raise/lower control was inactive unless the FE key was turned. Jon

13 years

1
0
0 0

Looking for: 4K memory board for SWTPC 6800

by derschjo＠gmail.com

Hi all -- Subject line says it all; I have 12K in my 6800 and I'd love to get up to 16K so I can use the disk system to run FLEX. I know it's possible to modify the processor board to wire in up to 8K of memory, but I'd prefer to leave it alone if possible. Anyone have a board (MP-M, MP-8M, or anything compatible, really...)? Doesn't even have to work, just be serviceable :). Thanksas always, Josh

13 years

1
0
0 0

FS: AMRAY 1610T SEM, 11/23-based EDS

by jfoust＠threedee.com

I need to dispose of the electronic microscope / spectrometer I acquired in 2001. <http://threedee.com/jmosn/microscopes/amray/index.html>http://threedee.com/jmosn/microscopes/amray/index.html http://www.labx.com/v2/adsearch/detail3.cfm?adnumb=498399 The PGT is PDP 11/23-based. If I can't find a "best offer" buyer for the entire package in the next few weeks, I'll scrap it for the metals but I'll find a classic-hearted home for the computer. Located in Jefferson, WI. - John

13 years

2
1
0 0

Sun 3/80 mobo wanted

by knowak＠alumni.calpoly.edu

By chance does anyone have a Sun 3/80 mainboard lying around. I fired mine up after years and it no longer powers up. I first thought it was the PS, but I replaced it with a known working one from an SS1 and it still was dead. Any possible ideas would be appreciated. -Kurt

13 years

1
0
0 0

Fixing a Micropolis 1375 drive?

by shadoooo＠gmail.com

I would add to my previous post that the operation of moving the bumper holder MUST be done with the disk at full rotating speed. In fact, this will move the head, that must fly on the disk surface. When done with halted disk, the head movement could cause severe damages. PS - BTW if somebody has a great amount of these disks to be repaired, I would be glad to have some for my DEC machines here. Andrea

13 years

1
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FS: Apple //c, //e and Mac Plus- All loaded tricked out systems

by slandon110＠gmail.com

Clearing out some more of my personal collection Nice Apple //c plus with original box, Monitor //c with stand and UniDisk 3.5 drive $150 dollars Can Deliver to VCFMW/ECCC if paid for in advance A loaded Mac Plus with 4MB RAM 20SC Hard Drive with 100MB Drive installed Apple CDSC CD-ROM Unit PowerUser Syquest 44mb drive with a ton of carts DaynaPort E/Z Ethernet Adapter for Mac Plus $150- Can deliver to VCFMW/ECCC if Paid for in advance Apple //e system CFFA 3000 Card Echo II Speech Synthesizer Card AppleTalk Workstation Card- Lets you connect your //e to AppleTalk Network DuoDisk 5.25 Drive Color Monitor //e Mouse Card with Mouse Taxan 64k RGB Monitor card, Use any RGB Monitor with the //e $400 dollars- Can Deliver to VCFMW/ECCC if Paid for in advance

13 years

6
5
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DEC RF74 fault light oddity

by binarydinosaurs＠gmail.com

Folks, I replaced a dead RF74 for a customer this morning and noticed the fault light was flashing while the drive was spinning up (the 'chirrup noise') so I set up its DSSI parameters and booted the system. No errors on startup, and indeed no errors while I was copying things to it, but the fault light appears to be acting like a drive activity light which is not something I've ever seen before. The drive works fine, all $ANALYZE commands are happy. Anyone? Cheers, -- adrian/witchy Owner of Binary Dinosaurs, the UK's biggest home computer collection? www.binarydinosaurs.co.uk

13 years

1
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My Compaq SLT/286 on YouTube

by terry＠webweavers.co.nz

My Compaq SLT/286. Lovely machine but getting a new Dallas battery in there is not easy. http://youtu.be/DJWyaJ086Ho

13 years

1
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Fixing a Micropolis 1375 drive?

by shadoooo＠gmail.com

The problem indeed is often caused by a gummy part going to goo after some years... The head assembly can move around a fixed axis near a front edge of the disk. The extremes of this movement have a couple of bumpers of this short-lasting gummy, that after 10 years goes to a viscous black material, loosing its tickness: that is, the extremes of the movement are now some degree more than the original device. Note that the bumpers are attached to metal holders that can be moved sligtly and that are fixed to the holding structure with two bolts each. (i can provide pictures of it all). The heads when the disk is stopped down "fly" to the park position, that is on one of the extreme (the most inner position over the disks). As the disk is powered up, the electronics put the heads to the inner end of the parking area, so the mechanical lock, that holds the heads even when the disk is powered down, can be easily disengaged. On the faulty drives, because of the loss of thickness of the bumpers, this operation let the head to fall outside the park area (too much toward the inner part of the disk) causing the electronics to detect a problems, and so forcing a new park operation, and all restarts.... I fixed this problem on a couple of disks. I needed to open the disks in a very clean room (few dust around), powering the disk at open-hearth, loosing a little the two bolts of the park area extreme, and moving the bumper holder slowly with the disk in movement, so letting it retry the spin-up sequence, until it seems to regain normal operation. Then I give a little bit more of thickness (we are talking about 0.1mm more or so) and refixed the two bolts. Then I tried to power-down and power-up to be sure that all works well. This saved a couple of disks completely. If you need it, I can supply good pictures of the inside of the disk, with some more advice. Andrea

13 years

2
1
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Computer Rental

by jthecman＠netscape.net

Hello I received a email from a movie company wanting to either buy or rent a IBM model 5150 computer for a moving they are shooting. The museum has one one but I have no idea what a good rental rate would be per week or month. Also it would be shipped out of the country and Im thinking a large deposit would be required for this to happen. Has anyone done something like this before and can share some tips? John K

13 years

20
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Free NorthStar Horizon manuals in So Cal.

by tosteve＠yahoo.com

Free for the cost of shipping: 1. NorthStar Horizon Computer System Manual (DD) 2. NorthStar Z80A Processor Board ZPB-A Manual 3. NorthStar System Software Manual4. NorthStar 32K RAM 5. NorthStar Horizon HRAM Users Manual http://bitpig.com/temp/NS-manuals.jpg Located in southern California - Orange County 92656

13 years

1
0
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HDOS commands and syntax

by starbase89＠gmail.com

Greetings! I recently acquired a Heath H89 computer with an H77 disk drive. I've gotten it to boot into HDOS, but I don't know how to make it do anything. Is there a reference available online? I mainly want to know how to mount disks, view their contents and run programs. Thanks for any help! Joe

13 years

3
2
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Computer Rental

by jonas＠otter.se

On Sun, 11 Aug 2013 23:55:02 -0600, Eric Smith <spacewar at gmail.com> wrote: > I still haven't actually seen_Swordfish_. Maybe I'll rent it some day. > > Eric Don't. It is really awful.Travolta and the terrible plot and screenplay nullify any good which Hugh Jackman, Halle Berry and Vinnie Jones do. /Jonas

13 years

1
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Fixing a Micropolis 1375 drive?

by tingox＠gmail.com

Hi, A friend of me recently got a nice machine, a ND (Norsk Data) Satellite Network Gateway. (For people wondering about Norsk Data, check www.ndwiki.org) Anyway, the drive in the machine is a Micropolis 1375 scsi drive. And it stopped working. Of course it was "goo" on the head assembly bumper(s). He has removed that and inserted a paper strip, but the drive still doesn't work. Are there any other known failure modes for the Micropolis 1370-series drives? Description of symptoms (translated by me, any errors are mine): - the drive spins up - disk activity light (on machine?) turns on - after a while the drive reduces RPM noticeably for about a second the last two steps repeats, and after about 5 minutes the drive spins down and stops rotating. But the disk activity light still blinks, and a faint clicking noise is heard every time the disk activity light is on. He also wonders if moving the electronics from a different 1375 drive to his drive would work, assuming he could get one that works. Has anyone done this? (those refurbished Micropolis 1375 drives at about USD 400 looks a bit suspicious - the technical data is different) -- Regards, Torfinn Ingolfsen, Oslo, Norway

13 years

2
2
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Turning the Apple //e into a lisp machine, part 1

by lproven＠gmail.com

http://blog.nullspace.io/apple-2-lisp-part-1.html 4min video I am amused that the narrator describes an odd (to him) bit of functionality of the Apple ][: it contains built-in hardware to turn an incoming audio stream into data in memory, which they use to transmit their Lisp into its RAM, as it has insufficient memory to develop code on the machine itself. :?) -- Liam Proven ? Profile: http://lproven.livejournal.com/profile Email: lproven at cix.co.uk ? GMail/G+/Twitter/Flickr/Facebook: lproven MSN: lproven at hotmail.com ? Skype/AIM/Yahoo/LinkedIn: liamproven Tel: +44 20-8685-0498 ? Cell: +44 7939-087884

13 years

2
1
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Looking for MSX2 expertise

by LYNCHAJ＠YAHOO.COM

Hi As you may already know, at the N8VEM project we are working on an S-100 VDP. This board has a V9939 video display processor and a AY-3-8910 sound generator which should allow us to have some MSX2 compatibility when combined with a backplane, S-100 Z80 CPU board, and a memory board. There are more IO and memory features necessary for full MSX2 compatibility required though. I am considering a designing a board to provide the balance of MSX2 functions so that the combination of an S-100 backplane, S-100 Z80 CPU, and S-100 VDP. I envision such a board to be composed of SRAM memory, a couple of 8255 PPIs, a card slot plus whatever extra IO and memory we need. If anyone has detailed MSX2 experience and would like to help out on designing an S-100 MSX2 compatibility board to complement the S-100 VDP please contact me. S-100 and MSX seem like a neat combination but no one has tried it AFAIK. Thanks and have a nice day! Andrew Lynch

13 years

6
11
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am26ls29

by bthomas＠brothom.nl

Hi, I need a replacement Am26LS29 for a CNC machine that has one that is broken. Our normal suppliers don't have them anymore. Any advice where I might get one? Regards, Bert

13 years

2
2
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TRSDOS-II 4.2 reverse-engineering

by spacewar＠gmail.com

I've started reverse-engineering the disk format for Model II TRSDOS-II 4.2. (I'd still like to get images of other TRSDOS versions.) I haven't actually started disassembling the code yet. I've gotten to the point of being able to extract unfragmented text files and BASIC programs from a floppy image, and that was the primary objective, so it's possible that I might not have to pursue the reverse-engineering any further. I was pretty sure before I started that they had switched to 16 512-byte sectors per track (vs. 26 256-byte in Model II TRSDOS 1.2 and 2.0). That is the case, but they still logically deal with it as 256-byte blocks, so they must have put in code to do blocking and deblocking. They do allocation in units of the 256-byte blocks, rather than in granules. The most interesting part is that they use a hierarchical directory structure. I'm not sure what versions of TRSDOS-II 4.x are covered by the manual I have, but the manual doesn't say anything about subdirectories, so perhaps they aren't made available to the end user. The root directory on the disk image I'm examining has room for four entries, of which only two are used, for SYSTEM/DIR and USER001/DIR. As one might guess, all of the system files are in the former, and user files go in the latter. The filename portion of a directory entry is no longer rigidly 8+3, but is now a 24-character field with the slash separating the filename and extension explicitly included. If TRSDOS-II 4.2 limits the filename to 8+3, that isn't due to the on-disk filesystem structure, but might be enforced for compatibility with earlier versions of TRSDOS. A directory entry now contains a linear block number of an index block for the file. Actually it contains two linear block numbers, for the index blocks of a primary and a backup copy of the file, but I've only seen this used in the root directory for the index blocks for the primary and backup SYSTEM/DIR and USER001/DIR directories. The superblock contains two linear block numbers for the index blocks of the two copies of the root directory. As far as I can tell, they have abandoned using a HIT (Hash Index Table) to speed directory searches, as was done in the earlier versions of Model II TRSDOS, as well as TRSDOS and compatible operating systems for the Model I/III/4. The index block apparently contains a list of extents, each of which is specified by a starting linear block number and a block count. The floppy image I'm examining has no fragmented files, so I've only seen a single extent in each index block, and am only assuming that additional extents pointers would be consecutively stored after the first. I'm not sure whether they can support a file needing more extents than can be listed in a single index block. The linear block numbers are probably three or four bytes, to support hard drives, but since I've only examined a floppy disk, I've only seen two bytes used, with the following two bytes being zero and presumed to be the high order part of the block number. Oddly enough, the low 16 bits of the block number is stored in big-endian form, which is unnatural on the 8080/Z80 processors. However, since a 24 or 32 bit block number would have the 8 or 16 bits stored after the low 16 bits, it is a mixed-endian format. The format of SYSTEM/SYS, the system overlay file, has changed again. They now use smaller overlays, most of which are only 256 or 512 bytes, but there are a lot more of them than there were in 1.2 and 2.0. Eric

13 years

1
1
0 0

MFM floppy disk write precompensation

by classiccmp＠philpem.me.uk

Hi, Does anyone have any details on how write precompensation is implemented on MFM-formatted floppy disks? I've been reading through the description in various disk controller datasheets, but they're as clear as mud - to the point where most only state that an EARLY or LATE signal is generated, not how those signals are generated. Reason I ask is, I'm trying to write a disc with a DiscFerret, but without precompensation they're unreadable... :( Thanks, -- Phil. classiccmp at philpem.me.uk http://www.philpem.me.uk/

13 years

11
24
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Amlyn cartridge drives

by snhirsch＠gmail.com

It does not seem like I'll be able to find media for this gadget, so I've move to Plan B: Reverse engineer the 5 existing diskettes I have. Since the originals are read with a WD FDC chip, I thought this would be a matter of letting ImageDisk have at it to determine the format. Unfortunately, IMD cannot make heads or tails out of what's on the diskettes. They do seem like they have 80-tracks, probably at 500KB/sec data rate - at least that's what IMD tends to converge on in between cascades of low-level data errors. Even at full analysis setting it's not able to decide what it's looking at. These diskettes read fine when I connect the unit to an Apple 2, so whatever is on them is intact. Anyone have an idea how to decipher it? I have a suspicion that they deliberately offset the tracks from a "normal" position. At one point there was a special fluid available to reveal magnetic domains under a magnifier, but this seems exotic and not something I would know where to obtain. Steve --

13 years

6
18
0 0

LSI-11 CPU problems

by james＠machineroom.info

Hi, I've recently got around to try get and my MINC-11 working and not getting very far! So I'm after advice. Right now I have a minimal system consisting of M7270 LSI11/2 CPU MSV11 RAM DLV11/J serial/console PC PSU with reset circuit to generate BPOK and BDCOK Here's a rough guide to what I've diagnosed so far: 1. Jumpered the CPU to boot into ODT and checked the jumpers on the serial board for console address 2. No activity on the console port on power on or reset 3. Double checked the timing of BDCOK & BPOK and they're in spec. 4. Debugging on the DLV11 reveals the MATCH signal isn't being generated >from the address decode logic 5. The bus looks partly correct. SYNC, BDIN & BDOUT look fine. The mux'd data/address lines are active in the BDIN/BDOUT cycles but within those cycles the signals "oscillate" (they cycle 20-30 times within a single BDIN/BDOUT pulse, which doesn't look good!) 6. Probing around the CPU board now. All the signals look correct, with the exception of the 16 data/address lines generated by the data chip (1611). Power and all 4 clock phases look good as does the internal data/control/microm WMIB bus and the WAIT signal from the control chip. 7. OK, so looks like the 1611 is faulty. I wanted to check it wasn't the 1611-Qbus interface circuitry so I "modified" a junk 40 pin socket to sit between the 1611 and the on-board socket and removed pins 3-18 (hence isolating the WDAL0-15 signals of the 1611 from the rest of the CPU board). This made no difference - the signals on those pins are very weak (2V peak) and "spike" for very short periods at the beginning of data read/write cycles. So I'm stuck and I have no spare 1611 or other LSI-11 CPU module to try. Does anyone have a spare 1611 or complete LSI11/2 they'd be willing to lend/sell? I'm in the UK. Alternatively, any advice for other things to check? I can try and grab some screen shots of the signals if that would help. Thanks for any help! James

13 years

1
1
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HP 16700A fan replacement blog post

by keithvz＠verizon.net

I replaced my noise side panel fan on my HP 16700A Logic Analyzer on Friday with some much quieter ones. I documented my process and wrote about it on my blog, available here http://techtravels.org/?p=902 I cross-posted this to the HP Agilent Equipment yahoo groups, so sorry for the dupe if you also belong there. Thanks Keith

13 years

1
0
0 0

S-100 6502 CPU V2 boards

by lynchaj＠yahoo.com

Hi I'd like to make a production order for S-100 6502 CPU V2 boards. ?These are similar to the S-100 6502 CPU V1 boards we released earlier but with some minor fixes and also improvements for TMAx circuitry. ?Now the board behaves well in a multiple CPU S-100 system as Master or Slave CPU board. There has to be firm demand for 20 boards to make a production order viable. ?So far there are 15 boards on order for builders. ?If we could just get a few more then I will make the order. ?There will still be some left over we can sell the usual way and if there are still leftovers I will sell them on VCGM and eBay. It is the usual arrangement except this time I am asking the builders to pay in advance for a good portion of the production order. ?That's a bit different than before but I can't "carry" the inventory like I used to be able to do. ?Each PCB is $20. Shipping in the US is $3 for a single PCB and $2 for each additional PCB. ?Shipping internationally is $10 for a single PCB and $3 for each additional PCB. ?This is for the bare basics USPS first class postage with no tracking or insurance. ?The builder assumes all risk of delivery as per usual arrangement. If you would like one or more S-100 6502 CPU V2 PCBs please send a PayPal to LYNCHAJ at YAHOO.COM Andrew Lynch PS, there are a number of S-100 boards backed up in the queue I'd like to distribute in this manner. ?Probably the S-100 80286 CPU board is next but there are several others John and I are working on as well.

13 years

1
1
0 0

IBM RT 6150 - IBM Model M 1392366

by maxxtw＠gmail.com

Howdy! I lovingly restore the good 'ol mechanicals and I have a very nice gently used 1392366 with box. Rivets are in great shape and aside from a small cosmetic issue here and there, it's about as good as you can find outside of being new. I thought I'd ask here first before the keyboard enthusiast forums. I know it's a rather elusive keyboard so if it could be paired up again with an RT I'd be thrilled. Kind regards, -Maxx

13 years

1
0
0 0

brackets on cards

by dgriffi＠cs.csubak.edu

Prior to the IBM PC, what computer used cards that have a mounting bracket perpendicular to the contact edge? -- David Griffith dgriffi at cs.csubak.edu

13 years

3
2
0 0

FPGAs [Was: Re: C64 Power Supply Replacement Options]

by Arno_1983＠gmx.de

David Riley <fraveydank at gmail.com> wrote: > On Jun 26, 2013, at 9:45 PM, ben wrote: > > What happend to all the mainframes? > > No one wanted them when they were just "old", so they were scrapped > for steel and copper. Same as all the other computers, except the > small sample that survived because people forgot they were sitting > in the attic (it's harder to forget there's a mainframe sitting > anywhere, and good luck getting it to the attic). (OK, ok, not sure if that qualifies as a mainframe, but being the size of a rather large chest freezer it has to be at least a supermini.) The IBM 4331 Hans Franke, John Z. and my humbleness rescued back around 2000 here in Germany was indeed stored in the attic of an, IIRC, three-storey house with no elevator, and had to be manhandled down the stairs. No idea how the former owner once got it up there, we however dismantled pretty much everything, took the heavy innards (Ferro-resonant transformers, PSU boxen and the "logic gate", a swing-out frame containing all the boards) down separately and only then were able to handle the empty frame. Still managed to punch quite a substantial hole into the PVC flooring of a stair with a corner of the frame. The twin disk drive that came with the unit unfortunately was not so easy, the drive mechanisms were already separate but the rest of the stuff (including the rather heavy air pump and motor) weren't easily removable and thus left inside the Frame. Unfortunately that drive was deemed unsalvageable afterwards, so once we get the Computer operational (it is reassembled and the Service processor is accessible via the System terminal, but IIRC something crashes without so much as an error code when the SP tries to enable power to the CPU), we won't have period storage for it. So Long, Arno

13 years

7
6
0 0

Anyone have access to an SGI personal IRIS?

by spc＠conman.org

Twenty-some years ago I wrote a program on an SGI personal IRIS 4D-35 (33MHz R3000 system). It took a hideously long time to run. I recently dusted off the code and started playing around with it and much to my horror there were a few optimizations I missed, and now I'm curious (probably not a good thing) as to how long the updated code would run on the system (we're talking "days to minutes" type of optimization). Does anyone have access to such a system that would be willing to run the code? It's straight forward C code so it should compile without a problem. -spc

13 years

5
18
0 0

FPUIB : Did you EVER want any of this?

by jonas＠otter.se

A box of books arrived here this evening, in excellent condition. The books are absolutely pristine - and heavy. It took 8 days to get from California to Sweden, not bad. Thanks! /Jonas

13 years

3
2
0 0

Samling IBM-kort till salu

by axelsson＠acc.umu.se

Hi, There is a lot with IBM circuit boards on http://goldrefiningforum.com/phpBB3/viewtopic.php?f=58&t=18960 I don't know if there is any value for collectors but I thought I would pass it along. It isn't my cards but if I manage to broker a deal I get a kickback... remember mention me if you buy the collection. :-D Date codes I see on the IC:s range between 1974 and 1982. G?ran

13 years

4
3
0 0

Nekochan archive...

by geneb＠deltasoft.com

This just hit archive.org: Collection of files at the ftp.nekochan.net FTP site, roughly 27 gigabytes of data dating back to 1987. Includes mirrors of the sites freeware.sgi.com, ftp.arl.mil, ftp.komkon.org, ftp.whtech.com, and www.msxarchive.nl. http://archive.org/details/ftp.nekochan.net.2013.08 g. -- Proud owner of F-15C 80-0007 http://www.f15sim.com - The only one of its kind. http://www.diy-cockpits.org/coll - Go Collimated or Go Home. Some people collect things for a hobby. Geeks collect hobbies. ScarletDME - The red hot Data Management Environment A Multi-Value database for the masses, not the classes. http://scarlet.deltasoft.com - Get it _today_!

13 years

6
11
0 0

Anyone have access to an SGI personal IRIS?

by ball.of.john＠gmail.com

> Twenty-some years ago I wrote a program on an SGI personal IRIS 4D-35 >(33MHz R3000 system). It took a hideously long time to run. I recently >dusted off the code and started playing around with it and much to my >horror there were a few optimizations I missed, and now I'm curious >(probably not a good thing) as to how long the updated code would run on the >system (we're talking "days to minutes" type of optimization). > > Does anyone have access to such a system that would be willing to run the >code? It's straight forward C code so it should compile without a problem. > > -spc > I have a Personal Iris that can be pulled out for use and be up in running pretty quickly. It's the 4D/20 so it's the slowest model they sold (12.5mhz) but it's crammed with 64mb of ram which on its own caused a performance boost in Irix 4.0.5 from the 16mb that was originally in it and it's been fitted with the Z-buffer, Bitplane and Turbo Graphics options. Failing that I have three separate Indigos running R3000, R4000 and R4400 processors but they'll take a bit longer to setup.

13 years

3
2
0 0

HP 98155A Keyboard on Ebay: $29.99

by Wayne.Smith＠warnerbros.com

There's a nice looking HP 98155A keyboard up on Ebay for a buy-it-now price of $29.99 (though pretty hefty shipping). This is the keyboard that interfaces with the HP 9915 and is seldom seen. I'd snag it but I already have one. http://www.ebay.com/itm/HP-Hewlett-Packard-98155A-Keyboard-Vintage-HP98155A… Grab it while you can. Wayne Smith

13 years

2
1
0 0

Rolls of Paper Tape (where to get them?)

by ball.of.john＠gmail.com

>If you want enough of it, you could probably get it made, but AFAICT >there's none commercially available. Small quantities show up on eBay >occasionally. What is the effect of unoiled tape in a Model 33? tighter oiling schedule?

13 years

1
0
0 0

Starting a PDP 11/03

by kelly＠catcorner.org

I have a PDP 11/03 that used to be part of the startup for an 11/780 at the University of Arkansas at Fayettville. The 780 has long ago been scrapped. So, the 11/03 has the following boards: M8017-AA : DLV11-E/EC Single-line async control module (Replaces M8017,M8017-YB) Renamed DLVE1 M7940 : DLV11 Serial Line Unit (SLU, Async) M7944 : MSV11-B 4-Kword 16-bit MOS RAM M7946 : RXV11 RX01 8" floppy disk controller M9400-YE : Bootstrap terminator I also have the RX01 drive. So, other than media, what other options do I need to get this running as an 11/03? Where is the best place to get some basic media images? Is it possible to create boot media on the 8" drives I have connected to my PC using IMAGEDISK, 22DISK or the catweasel? I know a lot of these questions are answered out there, but I've not seen (yet) a simple step by step to get one of these running. I have the opportunity to get a couple of memory boards also: M8044-DB 32K, 16-BIT RAM for LSI-11 M8044-DE 32K, 16-BIT RAM for LSI-11 So, will these work with this 11/03? It seems they will, but I was looking for verification. Thanks for any help, and of course the associated "have you tried googling..." responses. Kelly

13 years

9
17
0 0

Rolls of Paper Tape (where to get them?)

by ball.of.john＠gmail.com

I spent the afternoon finishing off repairs on a Teletype machine I picked up this morning and now I'm searching for the lesser important pedestal (I can live without it but the lack of a chad bucket will suck) and the far more important paper tape. From what I read you can't get away with using regular paper. It has to be prelubricated. Where on earth do you even find that stuff anymore? All I see on abay is a box of NOS rolls for $100 and a single roll for $150....

13 years

9
14
0 0

cctalk Digest, Vol 120, Issue 8

by snaggs＠mac.com

To the gentlemen who think that Apple is getting special treatment. In simple terms, the differences are that the patents that samsung were pursuing were many years ago offered to as part of pool of patents for the 3G standard. To become part of a standard they have to agree to sell rights to the patent for a reasonable price. Samsung broke this contractual obligation as it would not sell Apple these patents, even though it was obliged to. Imagine a company offers a design for an ethernet cable connector. There are infinitely many shapes you can choose. However, the comitee accepts the companies design, with agreement of a royalty rate of 0.0001cent per connector. 10 years down the track, when the stuff is installed everywhere, this same company starts demanding 10% of the cost of your datacentre, as the connectors are "an essential component". This is what samsung did. They are thieves and mafia thugs. Regards, Daniel, Sent from my iPad On 08/08/2013, at 1:00 AM, cctalk-request at classiccmp.org wrote: > Send cctalk mailing list submissions to > cctalk at classiccmp.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://www.classiccmp.org/mailman/listinfo/cctalk > or, via email, send a message with subject or body 'help' to > cctalk-request at classiccmp.org > > You can reach the person managing the list at > cctalk-owner at classiccmp.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of cctalk digest..." > > > Today's Topics: > > 1. Who has metal-case prototype Osborne 1? (steven stengel) > 2. Xerox 860 disks? (Evan Koblentz) > 3. Re: Xerox 860 disks? (Zane H. Healy) > 4. Re: Xerox 860 disks? (mc68010) > 5. Re: Xerox 860 disks? (Mr Ian Primus) > 6. Re: Xerox 860 disks? (Chuck Guzis) > 7. Re: Who has metal-case prototype Osborne 1? (Bill Layer) > 8. PDP-11/24 Backplane Block or Wirelist; M7134 KT24 Unibus Map > (Paul Birkel) > 9. Apple & FTC (Murray McCullough) > 10. Re: Xerox 860 disks? (Al Kossow) > 11. Re: Apple & FTC (Eric Smith) > 12. Re: Apple & FTC (Cory Smelosky) > 13. Re: Xerox 860 disks? (Mike Loewen) > 14. 286/SLT and 386s/SLT pieces (Jim Brain) > 15. Re: Xerox 860 disks? (Al Kossow) > 16. Re: Xerox 860 disks? (Al Kossow) > 17. Re: Xerox 860 disks (Evan Koblentz) > 18. Re: Xerox 860 disks? (Chuck Guzis) > 19. Re: Apple & FTC (George Currie) > 20. Model II/12/16/6000 TRSDOS images wanted (Eric Smith) > 21. Re: Xerox 860 disks? (mc68010) > 22. Re: Apple & FTC (Eric Smith) > 23. Re: Apple & FTC (George Currie) > 24. Re: Apple & FTC (Tothwolf) > 25. Re: Xerox 860 disks? (Al Kossow) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 6 Aug 2013 15:08:24 -0700 (PDT) > From: steven stengel <tosteve at yahoo.com> > To: cc <cctech at classiccmp.org> > Subject: Who has metal-case prototype Osborne 1? > Message-ID: > <1375826904.87677.YahooMailNeo at web122202.mail.ne1.yahoo.com> > Content-Type: text/plain; charset=iso-8859-1 > > A few years ago, an original metal-case Osborne 1 prototype system was for auction on pbagalleries.com for $5,000, but it didn't sell - probably a bad venue to sell computers.? > > The seller said he eventually did sell it, but he's doesn't recall to who. Does anyone here know where it went, or does anyone here have one? > > > I want to compare the inside construction with mine. > Thanks. > > > > ------------------------------ > > Message: 2 > Date: Wed, 7 Aug 2013 01:29:29 +0000 > From: "Evan Koblentz" <evan at snarc.net> > To: cctalk at classiccmp.org > Subject: Xerox 860 disks? > Message-ID: > <557934325-1375838969-cardhu_decombobulator_blackberry.rim.net-688841904- at b18.c15.bise6.blackberry> > > Content-Type: text/plain > > Anybody have boot disks / application disks for the Xerox 860 IPS word processing system? We need working ones for the MARCH museum in New Jersey. We can supply blank 8" disks if needed. > > > > ------------------------------ > > Message: 3 > Date: Tue, 6 Aug 2013 18:47:13 -0700 > From: "Zane H. Healy" <healyzh at aracnet.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: Xerox 860 disks? > Message-ID: <p06240830ce2756a67b20(a)[192.168.1.199]> > Content-Type: text/plain; charset="us-ascii" ; format="flowed" > > At 1:29 AM +0000 8/7/13, Evan Koblentz wrote: >> Anybody have boot disks / application disks for the Xerox 860 IPS >> word processing system? We need working ones for the MARCH museum in >> New Jersey. We can supply blank 8" disks if needed. > > Now there is a system that will make you appreciate modern computers, > and word processing software! I had to use one about 25 years ago, > and used to have the doc's for it, but I think I gave those to Jim > Willing in late 2000. > > Zane > > > > -- > | Zane H. Healy | UNIX Systems Administrator | > | healyzh at aracnet.com | OpenVMS Enthusiast | > | | Photographer | > +----------------------------------+----------------------------+ > | My flickr Photostream | > | http://www.flickr.com/photos/33848088 at N03/ | > | My Photography Website | > | http://www.zanesphotography.com | > > > > ------------------------------ > > Message: 4 > Date: Tue, 06 Aug 2013 18:48:18 -0700 > From: mc68010 <mc68010 at gmail.com> > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk at classiccmp.org> > Subject: Re: Xerox 860 disks? > Message-ID: <5201A762.5080208 at gmail.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > On 8/6/2013 6:29 PM, Evan Koblentz wrote: >> Anybody have boot disks / application disks for the Xerox 860 IPS word processing system? We need working ones for the MARCH museum in New Jersey. We can supply blank 8" disks if needed. > > There is actually cp/m and programming languages for those. I had one > from UC Berkeley that came with them. It would boot the cp/m banner but, > locked right after. It also locked booting the word processing stuff > too. I don't know if the machine had issues or the disks did. A lot of > the disks that came with it were in terrible shape. > > > ------------------------------ > > Message: 5 > Date: Tue, 6 Aug 2013 18:56:53 -0700 (PDT) > From: Mr Ian Primus <ian_primus at yahoo.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: Xerox 860 disks? > Message-ID: > <1375840613.51937.YahooMailBasic at web120504.mail.ne1.yahoo.com> > Content-Type: text/plain; charset=us-ascii > > > -------------------------------------------- > On Tue, 8/6/13, Evan Koblentz <evan at snarc.net> wrote: > >> Anybody have boot disks / application >> disks for the Xerox 860 IPS word processing system? We need >> working ones for the MARCH museum in New Jersey. We can >> supply blank 8" disks if needed. > > Or, even if anyone has any images of the disks - I can write them out for Evan. Or, even original disks, I can image/copy them - this is the sort of thing that should be on Bitsavers (and yes, I checked, and they're not) > > -Ian > > > ------------------------------ > > Message: 6 > Date: Tue, 06 Aug 2013 19:45:33 -0700 > From: Chuck Guzis <cclist at sydex.com> > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk at classiccmp.org> > Subject: Re: Xerox 860 disks? > Message-ID: <5201B4CD.8040301 at sydex.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > On 08/06/2013 06:29 PM, Evan Koblentz wrote: >> Anybody have boot disks / application disks for the Xerox 860 IPS >> word processing system? We need working ones for the MARCH museum in >> New Jersey. We can supply blank 8" disks if needed. > > I've got a disk labeled IPS System 3.2 8" SSSD. > > Let me know if you want an image. > > --Chuck > > > > > ------------------------------ > > Message: 7 > Date: Tue, 6 Aug 2013 21:50:51 -0500 > From: Bill Layer <drlegendre at gmail.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: Who has metal-case prototype Osborne 1? > Message-ID: > <CAFjrmd5hpbOJRJn4Z49kcN1izjAFCo+Q9bdD2P2NygvrAwgdEA at mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > Can't help you in the proto O1 area, but if anyone is interested in a > working Vixen, I do have one of those to put up on the block. > > > On Tue, Aug 6, 2013 at 5:08 PM, steven stengel <tosteve at yahoo.com> wrote: > >> A few years ago, an original metal-case Osborne 1 prototype system was for >> auction on pbagalleries.com for $5,000, but it didn't sell - probably a >> bad venue to sell computers. >> >> The seller said he eventually did sell it, but he's doesn't recall to who. >> Does anyone here know where it went, or does anyone here have one? >> >> >> I want to compare the inside construction with mine. >> Thanks. > > > ------------------------------ > > Message: 8 > Date: Mon, 5 Aug 2013 11:55:27 -0400 > From: Paul Birkel <pbirkel at gmail.com> > To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> > Subject: PDP-11/24 Backplane Block or Wirelist; M7134 KT24 Unibus Map > Message-ID: > <CAJj77rsKHqbDdbcZ=yA-DQ7fvx6EV6Hq++m0Nxb6wnCEN3T3bg at mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > I'm looking for an unwanted PDP-11/24 backplane block. If anyone has one > for a good home (honest :->), please contact me off-list. > > Since I expect no success on that request, I'm also looking for the 11/24 > backplane wire-list. No luck online; probably need someone to dig into > their microfiche. > >> From EK-11024-TM-PRE PDP-11/24 System Technical Manual (1981): > > 2.7 MODULE UTILIZATION IN A TYPICAL SYSTEM > The PDP-11/24 processor module uses its own backplane ( PN > 70-16905) and can not use a DD11-CK, DD11-DK, or DD11-PK. > >> From MP01018 FIELD MAINT. PRINT SET 11/24: > > D-AD-7016905-0-0 11/24 B/P ASSY. > > ----- > Also looking for *any* documentation for the M7134 KT24 UNIBUS MAP > (EXTENDED ADDRESS TO 22 BITS). No luck online; maybe have to dig into > microfiche there as well? > > Thanks! > > paul > > > ------------------------------ > > Message: 9 > Date: Tue, 6 Aug 2013 21:30:43 -0400 > From: Murray McCullough <c.murray.mccullough at gmail.com> > To: cctalk <cctalk at classiccmp.org> > Subject: Apple & FTC > Message-ID: > <CAMvyYF9BCcPJadu8H-qX+eqPWFmL81cmTmjFpZGBiXtrQ5amQA at mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > As formed readers of this webpage know Apple is one of the original 4 > companies to mass produce/market 8-bit microcomputers in 1977. The FTC > ruling has confirmed that Apple is a special technology company, > innovations and patents being keys to its success in the wireless > industry (iPhones) and tablet computer industry(iPads). Apple needs to > be protected as it's an invaluable contributer to keeping America > competitive and as a leader in mass-consumer, high technology, just as > it was in the late 70s. Or so it argues! > > Murray-- > > > ------------------------------ > > Message: 10 > Date: Tue, 06 Aug 2013 20:06:54 -0700 > From: Al Kossow <aek at bitsavers.org> > To: cctalk at classiccmp.org > Subject: Re: Xerox 860 disks? > Message-ID: <5201B9CE.6020100 at bitsavers.org> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > On 8/6/13 6:56 PM, Mr Ian Primus wrote: >> >> (and yes, I checked, and they're not) > > yet.. > > I'll see about getting them uploaded. > > > > > > ------------------------------ > > Message: 11 > Date: Tue, 6 Aug 2013 20:15:36 -0700 > From: Eric Smith <spacewar at gmail.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: Apple & FTC > Message-ID: > <CAFrGgTQaZxEb3m7zJccKUv2zaLh1C61jf-FJX6RgA82Mnbncig at mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > On Tue, Aug 6, 2013 at 6:30 PM, Murray McCullough > <c.murray.mccullough at gmail.com> wrote: >> As formed readers of this webpage know Apple is one of the original 4 >> companies to mass produce/market 8-bit microcomputers in 1977. The FTC >> ruling has confirmed that Apple is a special technology company, >> innovations and patents being keys to its success in the wireless >> industry (iPhones) and tablet computer industry(iPads). Apple needs to >> be protected as it's an invaluable contributer to keeping America >> competitive and as a leader in mass-consumer, high technology, just as >> it was in the late 70s. Or so it argues! > > So Apple can get competitors products banned from import if they are > found to violate Apple patents, but if Apple products are found to > infringe other companies' patents, that's just too f*&#ing bad for > those companies. > > Who says that the US doesn't have the best government money can buy? > > > ------------------------------ > > Message: 12 > Date: Wed, 07 Aug 2013 03:15:13 -0000 > From: "Cory Smelosky" <b4 at gewt.net> > Cc: cctalk <cctalk at classiccmp.org> > Subject: Re: Apple & FTC > Message-ID: <alpine.OSX.2.00.1308062314410.20333 at mylie.local> > Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed > > > On Tue, 7 Aug 2013, Murray McCullough wrote: > >> >> As formed readers of this webpage know Apple is one of the original 4 >> companies to mass produce/market 8-bit microcomputers in 1977. The FTC >> ruling has confirmed that Apple is a special technology company, >> innovations and patents being keys to its success in the wireless >> industry (iPhones) and tablet computer industry(iPads). Apple needs to >> be protected as it's an invaluable contributer to keeping America >> competitive and as a leader in mass-consumer, high technology, just as >> it was in the late 70s. Or so it argues! >> >> Murray-- > > > By innovating, they mean "copying everyone else and claiming we invented > it" ;) > > -- > Cory Smelosky > http://gewt.net Personal stuff > http://gimme-sympathy.org Projects > > > ------------------------------ > > Message: 13 > Date: Tue, 6 Aug 2013 23:27:41 -0400 (EDT) > From: Mike Loewen <mloewen at cpumagic.scol.pa.us> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: Xerox 860 disks? > Message-ID: > <alpine.LFD.2.02.1308062324260.25251 at cpumagic.137clearview.org> > Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed > > On Tue, 6 Aug 2013, Chuck Guzis wrote: > >> On 08/06/2013 06:29 PM, Evan Koblentz wrote: >>> Anybody have boot disks / application disks for the Xerox 860 IPS >>> word processing system? We need working ones for the MARCH museum in >>> New Jersey. We can supply blank 8" disks if needed. >> >> I've got a disk labeled IPS System 3.2 8" SSSD. >> >> Let me know if you want an image. >> >> --Chuck > > There are four 8" disk images in Don Maslin's archive which appear to > be for the 860: > > 860-D3 SSDD8 860 (?) > 860SCRCH SSDD8 860 Scratch disk > 860SCSYS SSDD8 860 (?) > 860TRNG SSDD8 860 Training disk > > The 860SCSYS.TD0 image appears to be a system disk of some sort. The > others appear to contain word processing documents. I can send you (or > Ian) the image files, or write them to 8" disks for you. > > > Mike Loewen mloewen at cpumagic.scol.pa.us > Old Technology http://sturgeon.css.psu.edu/~mloewen/Oldtech/ > > > ------------------------------ > > Message: 14 > Date: Tue, 06 Aug 2013 22:34:28 -0500 > From: Jim Brain <brain at jbrain.com> > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk at classiccmp.org> > Subject: 286/SLT and 386s/SLT pieces > Message-ID: <5201C044.5070508 at jbrain.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Many thanks to an on-list member, who helped me with my COMPAQ SLT/286. > If anyone needs something on one of these units, let me know, I'll pay > the favor forward if I can. > > Jim > > -- > Jim Brain > brain at jbrain.com > www.jbrain.com > > > > ------------------------------ > > Message: 15 > Date: Tue, 06 Aug 2013 20:54:47 -0700 > From: Al Kossow <aek at bitsavers.org> > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk at classiccmp.org> > Subject: Re: Xerox 860 disks? > Message-ID: <5201C507.2030206 at bitsavers.org> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > On 8/6/13 7:45 PM, Chuck Guzis wrote: > >> I've got a disk labeled IPS System 3.2 8" SSSD. >> >> Let me know if you want an image. > > could you forward it to me as well? > > > > > > ------------------------------ > > Message: 16 > Date: Tue, 06 Aug 2013 20:56:10 -0700 > From: Al Kossow <aek at bitsavers.org> > To: cctalk at classiccmp.org > Subject: Re: Xerox 860 disks? > Message-ID: <5201C55A.303 at bitsavers.org> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > On 8/6/13 8:27 PM, Mike Loewen wrote: > >> There are four 8" disk images in Don Maslin's archive which appear to be for the 860: >> >> 860-D3 SSDD8 860 (?) >> 860SCRCH SSDD8 860 Scratch disk >> 860SCSYS SSDD8 860 (?) >> 860TRNG SSDD8 860 Training disk > > probably the same as the .IMDs that I just uploaded to bitsavers > > > > > > ------------------------------ > > Message: 17 > Date: Wed, 7 Aug 2013 03:57:48 +0000 > From: "Evan Koblentz" <evan at snarc.net> > To: cctalk at classiccmp.org > Subject: Re: Xerox 860 disks > Message-ID: > <1732201428-1375847869-cardhu_decombobulator_blackberry.rim.net-114220280- at b18.c15.bise6.blackberry> > > Content-Type: text/plain > >>> There are four 8" disk images in Don Maslin's archive which appear to be for the 860 ... The 860SCSYS.TD0 image appears to be a system disk of some sort. The others appear to contain word processing documents. I can send you (or Ian) the image files, or write them to 8" disks for you. > > Thanks Mike. Please send me a fresh copy of the system disk and the training disk. If at all possible, please mail them tomorrow (Wed.) so I'll get them by Saturday and be able to test them at the museum Sunday. Will send you my snail mail privately. > > > > ------------------------------ > > Message: 18 > Date: Tue, 06 Aug 2013 21:07:26 -0700 > From: Chuck Guzis <cclist at sydex.com> > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk at classiccmp.org> > Subject: Re: Xerox 860 disks? > Message-ID: <5201C7FE.4010703 at sydex.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > On 08/06/2013 08:27 PM, Mike Loewen wrote: > >> There are four 8" disk images in Don Maslin's archive which appear >> to be for the 860: >> >> 860-D3 SSDD8 860 (?) >> 860SCRCH SSDD8 860 Scratch disk >> 860SCSYS SSDD8 860 (?) >> 860TRNG SSDD8 860 Training disk >> >> The 860SCSYS.TD0 image appears to be a system disk of some sort. >> The others appear to contain word processing documents. I can send you >> (or Ian) the image files, or write them to 8" disks for you. > > Well, I probably got the 860 sample from Don way back when, as it's his > handwriting on the floppy along with my name. I didn't know if he kept > the images around. > > So, Emily Litella. > > --Chuck > > > > > ------------------------------ > > Message: 19 > Date: Tue, 06 Aug 2013 23:34:05 -0500 > From: George Currie <g at kurico.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: Apple & FTC > Message-ID: <e622b1dba122a00e2794635d794730f2 at mail.mxes.net> > Content-Type: text/plain; charset=UTF-8; format=flowed > >> So Apple can get competitors products banned from import if they are >> found to violate Apple patents, but if Apple products are found to >> infringe other companies' patents, that's just too f*&#ing bad for >> those companies. >> >> Who says that the US doesn't have the best government money can buy? > > Actually no, Apple has been found in violation of plenty of patents, > they aren't getting special treatment. This is all about MOT and FRAND > abuse, which is pretty clearly the case here. Most here remember RAMBUS > and their (seemingly) never ending tango with the FTC, similar story, > the FTC isn't doing anything new or giving Apple any special treatment. > > > ------------------------------ > > Message: 20 > Date: Tue, 6 Aug 2013 21:37:01 -0700 > From: Eric Smith <spacewar at gmail.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Model II/12/16/6000 TRSDOS images wanted > Message-ID: > <CAFrGgTR94fYXfxt4fUzz6EFOpymosO4xDW5pA8JNDEKah1dbAQ at mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > If anyone happens to have any Model II/12/16/6000 TRSDOS images that > could be made available, it would help with my continued > reverse-engineering efforts. Images of virgin TRSDOS distribution > disks are preferred. I'm especially interested in TRSDOS-1.0 and 1.1, > and TRSDOS-II 4.x. > > Thanks! > Eric > > > ------------------------------ > > Message: 21 > Date: Tue, 06 Aug 2013 21:40:12 -0700 > From: mc68010 <mc68010 at gmail.com> > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk at classiccmp.org> > Subject: Re: Xerox 860 disks? > Message-ID: <5201CFAC.6090305 at gmail.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > On 8/6/2013 9:07 PM, Chuck Guzis wrote: >> On 08/06/2013 08:27 PM, Mike Loewen wrote: >> >>> There are four 8" disk images in Don Maslin's archive which appear >>> to be for the 860: >>> >>> 860-D3 SSDD8 860 (?) >>> 860SCRCH SSDD8 860 Scratch disk >>> 860SCSYS SSDD8 860 (?) >>> 860TRNG SSDD8 860 Training disk >>> >>> The 860SCSYS.TD0 image appears to be a system disk of some sort. >>> The others appear to contain word processing documents. I can send you >>> (or Ian) the image files, or write them to 8" disks for you. >> >> Well, I probably got the 860 sample from Don way back when, as it's >> his handwriting on the floppy along with my name. I didn't know if he >> kept the images around. >> >> So, Emily Litella. >> >> --Chuck > > The 860 I had came with a mess of disks that were labeled in a way that > made them seem sort of specific to the machine they were for. It may > have just been to tell people where they were supposed to be returned to > but, it also may have meant that there was some sort of customization on > the boot disk for each system. Things like what monitor and devices were > attached. It all seemed to be something Xerox field people were in > charge of setting up. Very little information on those things out > there. I always thought maybe mine wouldn't boot because I didn't have > the exact right boot disk or something the boot disk expected to find > wasn't connected. > > > ------------------------------ > > Message: 22 > Date: Tue, 6 Aug 2013 22:01:27 -0700 > From: Eric Smith <spacewar at gmail.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: Apple & FTC > Message-ID: > <CAFrGgTR-z-D6mZcY-51qsvjicrEyXn=j6cSTs66Jq6Xdij7A4g at mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > I wrote: >> So Apple can get competitors products banned from import if they are >> found to violate Apple patents, but if Apple products are found to >> infringe other companies' patents, that's just too f*&#ing bad for >> those companies. >> >> Who says that the US doesn't have the best government money can buy? > > On Tue, Aug 6, 2013 at 9:34 PM, George Currie <g at kurico.com> wrote: >> Actually no, Apple has been found in violation of plenty of patents, they >> aren't getting special treatment. This is all about MOT and FRAND abuse, >> which is pretty clearly the case here. Most here remember RAMBUS and their >> (seemingly) never ending tango with the FTC, similar story, the FTC isn't >> doing anything new or giving Apple any special treatment. > > Apple most certainly is getting special treatment by the US > government. President Obama and the US Trade Representative overturned > the import ban the FTC imposed on Apple as a result of the FTC finding > in June that Apple infringed a Samsung patent. This clearly > demonstrates that corruption in the US government reaches the highest > levels. (No big surprise.) > > > ------------------------------ > > Message: 23 > Date: Wed, 07 Aug 2013 00:28:45 -0500 > From: George Currie <g at kurico.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: Apple & FTC > Message-ID: <7b4e740d3b63d0bd0e866481c6372c96 at mail.mxes.net> > Content-Type: text/plain; charset=UTF-8; format=flowed > >> Apple most certainly is getting special treatment by the US >> government. President Obama and the US Trade Representative >> overturned >> the import ban the FTC imposed on Apple as a result of the FTC >> finding >> in June that Apple infringed a Samsung patent. This clearly >> demonstrates that corruption in the US government reaches the highest >> levels. (No big surprise.) > > I assume you disagree that Samsung was being abusive with their SEP and > violating FRAND agreements? BTW, that should be "ITC finding" not "FTC > finding". Also, I realize that I mistakenly said MOT vs Samsung in my > original reply (MOT is also ignoring FRAND). > > > ------------------------------ > > Message: 24 > Date: Wed, 7 Aug 2013 01:28:55 -0500 (CDT) > From: Tothwolf <tothwolf at concentric.net> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: Apple & FTC > Message-ID: > <alpine.DEB.2.00.1308070127440.5288 at brioche.invalid.domain> > Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed > > On Wed, 7 Aug 2013, George Currie wrote: > >>> Apple most certainly is getting special treatment by the US government. >>> President Obama and the US Trade Representative overturned the import >>> ban the FTC imposed on Apple as a result of the FTC finding in June >>> that Apple infringed a Samsung patent. This clearly demonstrates that >>> corruption in the US government reaches the highest levels. (No big >>> surprise.) >> >> I assume you disagree that Samsung was being abusive with their SEP and >> violating FRAND agreements? BTW, that should be "ITC finding" not "FTC >> finding". Also, I realize that I mistakenly said MOT vs Samsung in my >> original reply (MOT is also ignoring FRAND). > > IMO, every single one of them has been abusing the processes. Apple > however is clearly getting special treatment. > > > ------------------------------ > > Message: 25 > Date: Wed, 07 Aug 2013 06:22:46 -0700 > From: Al Kossow <aek at bitsavers.org> > To: cctalk at classiccmp.org > Subject: Re: Xerox 860 disks? > Message-ID: <52024A26.6050406 at bitsavers.org> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > On 8/6/13 9:40 PM, mc68010 wrote: > >> The 860 I had came with a mess of disks that were labeled in a way that made them seem sort of specific to the machine they were for. > > I still have those disks, just need to dig them back out and image them. Those particular > Maslin images were just the easiest to upload. I also remember there being at least one 860 > CP/M disk from him as well. > > There are several hardware configurations, and at least two different resolution displays > on the 860. > > > > > > > End of cctalk Digest, Vol 120, Issue 8 > **************************************

13 years

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Model II/12/16/6000 TRSDOS images wanted

by spacewar＠gmail.com

If anyone happens to have any Model II/12/16/6000 TRSDOS images that could be made available, it would help with my continued reverse-engineering efforts. Images of virgin TRSDOS distribution disks are preferred. I'm especially interested in TRSDOS-1.0 and 1.1, and TRSDOS-II 4.x. Thanks! Eric

13 years

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ES Plotter Paper

by wdonzelli＠gmail.com

I have a line on a *lot* of plotter paper rolls for electrostatic plotters. These are 19 1/4 inches by 450 feet - I think they were originally for Nike radar plotters. I might think they would work on almost any ES plotter. Available pretty cheap, especially if you buy the whole pallet of them. -- Will

13 years

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Upcoming S-100 boards

by LYNCHAJ＠YAHOO.COM

Hi Here is a quick update on upcoming S100computers.com and N8VEM S-100 board projects: 1. S-100 6502 CPU V2 (includes minor fixes from V1 plus new TMAx multiple CPU logic) - taking orders for "production" boards. Please contact me if you would like to advance order to reserve one or more PCBs. 2. S-100 ParallelIO - this is a new board sort of a modernized version of the MITS Altair PIO board. Includes LED debugging lights. It is meant to be an easy to construct and test board for new builders while still being useful to all. Includes 4 each byte wide input and output ports plus a PC compatible printer port. Currently in prototype build and test. 3. S-100 TestIO V2 - An experimental S-100 to ISA bridge. The purpose of this board is to diagnose why the VGA chipset works on the ISA bus but not on the S-100 bus. May evolve into a general purpose bridge board sometime in the future but is just for internal build and test at the moment. 4. S-100 EPROM/RAM V2 board - a redesign of the original S-100 EPROM/RAM board with improved logic and options. Very useful general purpose memory supports common DIP Flash, EPROM, SRAM, etc. Prototypes ordered for build and test. 5. S-100 VDP V3 - update to the ongoing development of the V9938 and AY-3-8910 video and sound board. Feedback from Leon and John have fixed the major problems and it is reliably generating composite video, sort of VGA video, and sound. Prototypes ordered for build and test. 6. S-100 80286 CPU - finishing up in PCB trace routing after several revisions. Probably will go to prototype build and test before a production board available due to the rather significant updates. Would like to get this out this summer. 7. S-100 80386 CPU - finishing up in PCB trace routing. Really could go to production at any time but will probably follow the S-100 80286 CPU board. 8. S-100 80386 SRAM V2 (8MB) - matched for S-100 80386 CPU has completed PCB trace routing and is ready to go for production. There are more boards in earlier stages of development that have not reached the prototype stage yet. We'll save discussion of those for later. Thanks and have a nice day! Andrew Lynch

13 years

1
0
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HP Ipaq RZ1715 factory refurb

by sales＠elecplus.com

I have 2 of these in stock, no more warranty from HP, but they were never used after being repaired. We have tested them, and they work fine. HP PN FA290AR#ABA Includes AC adapter, USB cable, owner's guide. $75 plus shipping, weight is 2 pounds. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3392 / Virus Database: 3209/6558 - Release Date: 08/07/13

13 years

1
0
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OLD laptops, 286, 386, 486, very early MacBooks

by sales＠elecplus.com

If you are interested in OLD laptops, complete and working with AC adapter, hard drive, loaded software, for $75 each, please email me off list. I have 2 pallets of these old systems. Sorry, no 701C butterfly IBM models. Brands include Apple/Mac, Compaq, AST, IBM, Zenith, Toshiba, Gateway. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3392 / Virus Database: 3209/6558 - Release Date: 08/07/13

13 years

1
0
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Mac ADB KVM switches?

by fraveydank＠gmail.com

Hi all, I'm in the market for a classic Mac KVM. Dr. Bott's MoniSwitch ADB has a pretty good reputation, but if anyone has any others they can trade/recommend, I'm all ears. ADB switching is difficult to get right, and a lot of KVMs just had mechanical switches for it... not 100% sure about the MoniSwitch family, but people don't seem to have had many problems with them. I have one of Dr. Bott's MoniSwitch DVI+USB switches, which is really great for machines that can use it (though it won't reliably run 1600x1200 or 1920x1080 over single-link DVI, which is why I've abandoned it). Willing to trade other things as well. - Dave

13 years

1
0
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IBM RT

by ittybittybytes＠gmail.com

Digging around in the old travel trailer we used to store stuff in when the shed blew down in a monsoon thunderstorm several years ago, I dug out an (almost) complete IBM RT (6150) ROMP system. I had thought I had sold this years ago. Apparently I did, and the person who was to come by and pick it up, and pay for it, never did. So there it sat under a bunch of boxes..waiting...waiting, until I found it again last week. It's the desk side system and has lots and lots of stuff to go with it. If I remember right the only stuff that we couldn't save was a lot of paper documentation (manuals, etc) that was waterlogged and mostly destroyed. All the hardware was intact as it was under a hardy canvas tarp, when the storage shed roof caved in. Besides the desk side unit and monitor/keyboard. It also came with several unopened boxes of hardware, including several NIB mice, a NIB never opened IBM SCSI card, a whole bunch of controllers and extra processors and memory cards. disk drives and an IBM serial terminal. There is a binder or two of AIX 1.x floppies that had the labels "sweat" off them AND a cdrom with several OS images on them. If I remember right it might have had the AOS (Academic Operating System, a BSD4 variant) on it. As I am in the process of slimming down my collection as we will be selling the house this year, I can't keep it. I have not seen any of these systems on Ebay at all in the last 6 months, so I have no idea of it's worth. But such a complete system with so many "unobtanium" spares is probably worth a few quatloos. It will most likely go up on Ebay this week unless somebody on the list make me an offer I can't refuse. In the mean time, I will put some images up tomorrow on imgur for your perusal. http://ittybittybytes.imgur.com/all/ Cheers Tom P

13 years

8
9
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SysIII/early SYS V/mt Xinu?

by b4＠gewt.net

Hello, Anyone happen to have images of tapes for these? I've wanted to poke around with them but I've not been able to track down a copy of SysIII or early SysV. mt Xinu is overall lacking in infortmation on the internet, so that's hard to find too. btw, I'd prefer VAX versions. That's all I have a simulator for...unless I could get it to work on a Pentium MMX. ;) -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects

13 years

1
0
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PDP-11/24 Backplane Block or Wirelist; M7134 KT24 Unibus Map

by pbirkel＠gmail.com

I'm looking for an unwanted PDP-11/24 backplane block. If anyone has one for a good home (honest :->), please contact me off-list. Since I expect no success on that request, I'm also looking for the 11/24 backplane wire-list. No luck online; probably need someone to dig into their microfiche. >From EK-11024-TM-PRE PDP-11/24 System Technical Manual (1981): 2.7 MODULE UTILIZATION IN A TYPICAL SYSTEM The PDP-11/24 processor module uses its own backplane ( PN 70-16905) and can not use a DD11-CK, DD11-DK, or DD11-PK. >From MP01018 FIELD MAINT. PRINT SET 11/24: D-AD-7016905-0-0 11/24 B/P ASSY. ----- Also looking for *any* documentation for the M7134 KT24 UNIBUS MAP (EXTENDED ADDRESS TO 22 BITS) but especially want the print set. No luck online; maybe have to dig into microfiche there as well? Thanks! paul

13 years

1
0
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VisualAge Smalltalk 5.0

by BHuntsman＠mail2.cu-portland.edu

Hi! I know there are a few of us on the list who appreciate classic software as well as classic hardware. I have an interesting app I want to poke at that strictly requires VisualAge Smalltalk 5.0. I know that it was offered in trial form back then just like the current versions. Might anyone have a copy of VAST 5.0 for Windows in their archive? Many many thanks!! -Ben

13 years

1
0
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Xerox 860 disks?

by evan＠snarc.net

Anybody have boot disks / application disks for the Xerox 860 IPS word processing system? We need working ones for the MARCH museum in New Jersey. We can supply blank 8" disks if needed.

13 years

6
10
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Apple & FTC

by c.murray.mccullough＠gmail.com

As formed readers of this webpage know Apple is one of the original 4 companies to mass produce/market 8-bit microcomputers in 1977. The FTC ruling has confirmed that Apple is a special technology company, innovations and patents being keys to its success in the wireless industry (iPhones) and tablet computer industry(iPads). Apple needs to be protected as it's an invaluable contributer to keeping America competitive and as a leader in mass-consumer, high technology, just as it was in the late 70s. Or so it argues! Murray--

13 years

5
6
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Xerox 860 disks

by evan＠snarc.net

>> There are four 8" disk images in Don Maslin's archive which appear to be for the 860 ... The 860SCSYS.TD0 image appears to be a system disk of some sort. The others appear to contain word processing documents. I can send you (or Ian) the image files, or write them to 8" disks for you. Thanks Mike. Please send me a fresh copy of the system disk and the training disk. If at all possible, please mail them tomorrow (Wed.) so I'll get them by Saturday and be able to test them at the museum Sunday. Will send you my snail mail privately.

13 years

1
0
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286/SLT and 386s/SLT pieces

by brain＠jbrain.com

Many thanks to an on-list member, who helped me with my COMPAQ SLT/286. If anyone needs something on one of these units, let me know, I'll pay the favor forward if I can. Jim -- Jim Brain brain at jbrain.com www.jbrain.com

13 years

1
0
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Who has metal-case prototype Osborne 1?

by tosteve＠yahoo.com

A few years ago, an original metal-case Osborne 1 prototype system was for auction on pbagalleries.com for $5,000, but it didn't sell - probably a bad venue to sell computers.? The seller said he eventually did sell it, but he's doesn't recall to who. Does anyone here know where it went, or does anyone here have one? I want to compare the inside construction with mine. Thanks.

13 years

2
1
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Xerox 860 disks?

by healyzh＠aracnet.com

At 1:29 AM +0000 8/7/13, Evan Koblentz wrote: >Anybody have boot disks / application disks for the Xerox 860 IPS >word processing system? We need working ones for the MARCH museum in >New Jersey. We can supply blank 8" disks if needed. Now there is a system that will make you appreciate modern computers, and word processing software! I had to use one about 25 years ago, and used to have the doc's for it, but I think I gave those to Jim Willing in late 2000. Zane -- | Zane H. Healy | UNIX Systems Administrator | | healyzh at aracnet.com | OpenVMS Enthusiast | | | Photographer | +----------------------------------+----------------------------+ | My flickr Photostream | | http://www.flickr.com/photos/33848088 at N03/ | | My Photography Website | | http://www.zanesphotography.com |

13 years

1
0
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FS:T Apple II Plus, Bell & Howell II Plus, Apple IIc, Color Classic, Compact Macs & More

by slandon110＠gmail.com

Id rather not put these on ebay and would like to get them in the hands of a real collector. Prices are or best offer, Or willing to trade for NeXT Stuff Apple II Plus System Language Card Apple Monitor /// Disk II Monitor /// Stand $200 or best Bell & Howell II Plus z80 Card Disk II Card Super Serial Card Matching 9inch B&W Monitor $200 or best Apple //c System Matching 9 inch Monitor UniDisk 3.5 Drive $100 dollars Macintosh SE FDHD System 2MB RAM 40MB HDD, Matching External FDD. System 6 on disks $75 Macintosh SE Dual 800k System External 20SC Hard Disk 1MB RAM, External 800k 3.5 Floppy Drive $75- Keyboard and mouse included Macintosh Plus 4MB RAM, External 20SC Hard Disk Keyboard and mouse included $75 Macintosh Classic II 4MB RAM/40MB HDD. Needs recapped $20 dollars Macintosh Performa 200 4MB RAM/40MB HDD Needs recapped $20 dollars Macintosh Color Classic $100 dollars- Needs recapped

13 years

2
1
0 0

PDP-11/24 Backplane Block or Wirelist; M7134 KT24 Unibus Map

by pbirkel＠gmail.com

I'm looking for an unwanted PDP-11/24 backplane block. If anyone has one for a good home (honest :->), please contact me off-list. Since I expect no success on that request, I'm also looking for the 11/24 backplane wire-list. No luck online; probably need someone to dig into their microfiche. >From EK-11024-TM-PRE PDP-11/24 System Technical Manual (1981): 2.7 MODULE UTILIZATION IN A TYPICAL SYSTEM The PDP-11/24 processor module uses its own backplane ( PN 70-16905) and can not use a DD11-CK, DD11-DK, or DD11-PK. >From MP01018 FIELD MAINT. PRINT SET 11/24: D-AD-7016905-0-0 11/24 B/P ASSY. ----- Also looking for *any* documentation for the M7134 KT24 UNIBUS MAP (EXTENDED ADDRESS TO 22 BITS). No luck online; maybe have to dig into microfiche there as well? Thanks! paul

13 years

1
0
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FS: Macintosh SE FDHD & Bell And Howell Apple II Plus

by slandon110＠gmail.com

More of my apple collection. I have a nice Macintosh SE FDHD machine with matching external FDHD Floppy Drive $100 dollars. Has 2MB RAM and System 6 Bell & Howell Apple II. Matching 9inch B&W Monitor, and external drive Has SuperSerial Card and Z80 Card installed. Works perfectly and is in great shape. $300 dollars or best offer Or will trade for NeXT/OpenStep type stuff

13 years

1
0
0 0

VCFMW Roomates & Ride Share

by slandon110＠gmail.com

Anyone going to VCFMW looking to share the cost of a room, Also I can pick peeps on the way. I live in Flint Michigan, so if anyone along the path wants to share a ride let me know Steve

13 years

1
0
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[N8VEM-S100:1718] Re: [N8VEM: 16085] Re: PCB reorders

by LYNCHAJ＠YAHOO.COM

Hi! We are trying something different on the N8VEM home brew computing project. The S-100 6502 CPU V2 board design is complete and I am planning to get a new batch of PCBs. This new design includes the features of the S-100 6502 CPU V1 board plus several improvements. The main improvement is the S-100 6502 CPU V2 board can now function in a multi-processor S-100 system as either bus master or as a slave processor. Also to help move this project along a bit, if builders want to accelerate things they can "pre-order" the boards and send their funds in now. I will reserve it and buy the "production PCBs" (with the gold fingers) from the funds we are raising. If you want to participate in the "pre-order" please send a PayPal for your boards with the subject "S-100 6502 CPU V2" and I will reserve your boards. The boards are $20 each. Shipping in the US is $3 for a single PCB and $2 for each additional PCB. Shipping internationally is $10 for a single PCB and $3 for each additional PCB. This is for the bare basics USPS first class postage with no tracking or insurance. The builder assumes all risk of delivery as per usual arrangement. If you would like an S-100 6502 CPU V2 PCB *and* can tolerate a bit of risk in advance payment please send a PayPal to LYNCHAJ at YAHOO.COM for the total. Obviously those builders which pre-pay will get first dibs since they are exposed to the most risk. I will get some extra boards too and those will go to the remaining builders who want them. Any left after that will go straight to VCGM and eBay so we can keep the inventory carry down a minimum. Thanks and have a nice day! Andrew Lynch

13 years

1
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home brew, vintage, and classic computer items for sale

by LYNCHAJ＠YAHOO.COM

Hi I selling several home brew, vintage, and classic computer items on VCGM which may be of interest http://marketplace.vintage-computer.com/other_items.php?limit=100&owner_id=1 00048&item_type=all Some items aren't getting much interest there so I've moved/copied some items to eBay http://shop.ebay.com/lynchkl/m.html Please take a look at these items and support VCGM first. Thanks and have a nice day Andrew Lynch

13 years

1
0
0 0

16kb variant of the IBM 5150

by martin＠shackspace.de

Hello! Is there s/o owning a 16kb variant of the 5150 or s/o who's seen it in the wild? The first motherboard of the 5150 is often referred to as the 16/64kb board. Was the 16kb variant of the 5150 without the fdd's probably a configuration never released or was ist only very uncommon? And if it was released: was it officially shiped to europe? Please do not refer to wikipedia or collector sites only stating it exists. I know that it is often mentioned, but I couldn't find any pictures. I think this variant exists, but there are so many myth on historic computer hardware out there. thanks, Martin -- Martin Peters martin.peters at news.uni-stuttgart.de

13 years

19
68
0 0

My PS/2 models on YouTube

by terry＠webweavers.co.nz

"How you gonna do it? Ya gonna PS/2 it! The answer is IBM" Here is another youtube video where I look at a series of IBM models which were suppose to take back the business market from the PC clones but didn't. Also some views of my own PS/2 models. Enjoy! http://youtu.be/bg1ZSxPOb0A Terry (Tez)

13 years

1
0
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Digitizing VHS and More

by marvin＠west.net

Plextor makes a small USB box with Video and Left/Right Audio inputs where the results can be stored on a HD. The model I have isPX-AV100U and it works pretty well. I used it to capture Osborne VHS tapes showing how to disassemble and work on the Osborne computers. I just play the tape on a normal VHS player and capture with the Plextor unit. I've never bothered to check the specifications since this does what I need. Probably won't be a bad idea though. From: Fred Cisin <cisin at xenosoft.com> > Who is currently setup to digitize VHS? > I have a few demo tapes, such as the Newtek Video Toaster demo tape, CSC > Infomercial, etc. that need to get read.

13 years

5
10
0 0

VCFMW NeXT Display

by slandon110＠gmail.com

Ethan, a SparcStation 5 or better will run OpenStep/NeXTstep just fine. If you need the disks I can make you some. And you suck because you have a cube, ive been wanting one for a very long time

13 years

2
1
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Wanted: NeXT Cube, or NeXTstation Turbo, or Color Turbo

by slandon110＠gmail.com

Im looking for a NeXT cube, NeXTstation Turbo or Color Turbo I have a very nice Bell & Howell Apple II Plus clone for trade, comes with a 9inch RCA Monitor, 1 matching disk drive, has a z80 card and a super serial card installed. Also have the rare Apple Color Monitor 100 RGB Monitor with Interface card for the Apple //e Also have multiple other mac/apple items for trade

13 years

1
0
0 0

VCFMW NeXT Display

by slandon110＠gmail.com

Hey Guys, Im planning a NeXT/OpenStep display Ill be bringing a NeXT mono slab, Thinkpad 380ED running OpenStep 4.2, Sun SparcStation running OpenStep, A ThinkPad 760ED Running Rhapsody DR2 5.1. PowerMac 7500/200 running Rhapsody DR2 5.1 and a PowerMac G3 Running Rhapsody 5.6. So for those of you who have NeXT stuff bring it on out, lets see if we can have a big display of NeXT/OpenStep Hardware this year. Doesnt have to be actual Black NeXT hardware, It can be anything that runs NEXTSTEP or OpenStep, whether it be Intel, PA RISC, Sparc and 68k. Steve

13 years

2
1
0 0

Microvitec monitor woes (Acorn Archimedes)

by binarydinosaurs＠gmail.com

Folks, I've got a 1995 vintage Microvitec here, model 14VC2KLS2X, that seems to have a PSU problem. Once warmed up it randomly goes off and suffers vertical collapse, occasionally horizontal hold craps out as well. Simple fix? All the capacitors look ok, ie not bulging. I know there's Microvitec experts here :) Cheers, -- adrian/witchy Owner of Binary Dinosaurs, the UK's biggest home computer collection? www.binarydinosaurs.co.uk

13 years

3
2
0 0

Pdp11 Ethernet cards

by bqt＠update.uu.se

On 2013-08-01 19:00, David Riley<fraveydank at gmail.com> wrote: > > On Jul 24, 2013, at 6:55 PM, Roe Peterson<roe at liveblockauctions.com> wrote: > >> >I'm looking to equip my unibus pdp11/34a and qbus 11/83 with Ethernet cards. I have no experience with old DEC network hardware, and I need advice. >> > >> >On the qbus side, what is the difference between a DELNA and DEQNA? Is one superior? Is there a better alternative? > Do you mean DELQA instead of DELNA? The DELQA was the later Qbus Ethernet > board that I'm aware of. It's what I have; it has a 10 MHz 68000 on board, > which should be plenty for handling heavy Ethernet load. The older DEQNA > (which, if I'm not mistaken, is essentially a Qbus version of the DEUNA) > has power consumption/heat dissipation issues and some lockup issues as > mentioned before. The DELQA is generally backwards-compatible with the > DEQNA for most software, though it has a jumper setting which purports to > make it 100% backwards-compatible for less tolerant software (all DEC OSes > supposedly support DELQA in its normal backwards-compatible mode). He is most likely talking about the DELQA, yes. And to clarify a couple of things: For Unibus you have: DEUNA - PDP-11-based ethernet controller. 2 cards. DELUA - 68K-based ethernet controller. 1 card. For Qbus: DEQNA - Discrete logic microcode engine. 1 card. DELQA - 68K based ethernet controller. 1 card. The Unibus controllers are software compatible. The Qbus controllers are software compatible. However, the Unibus and Qbus controllers have totally different programming models, and are not compatible at all. There is not the slightest bit of relationship between them. Anyone thinking that a DEQNA is just a Qbus version of a DEUNA is just plain wrong. And the same goes for the DELQA compared to the DELUA. They are not even close. The DELQA can operate either in DEQNA compatible mode (controlled by a switch) or in DELQA mode, which is different, but not very much so. There was also a late modification to the DELQA, called the DELQA-Plus, or DELQA-YM, which had some extra enhancements to it. > DELQAs usually aren't that hard to find on eBay, and if you're lucky, they > come with a cab kit (which isn't that hard to make, since it's a pretty > straightforward AUI cable with a fuse). DEQNA cab kits should work fine > with a DELQA. I have definitely used DEQNA cab kits on DELQAs, and I think I have used things the other way around as well. Someone mentioned that there is a 1 wire difference, which I think is correct. Not significant enough to affect functionality. > As far as I can tell, the DELUA is the Unibus equivalent to the DELQA. In > general, if you swap a U for a Q in the name, that's what you're looking > for (which is why if there's something called a DELNA, I don't know what > it is, but the only picture purporting to be on I can see on Google looks > an awful lot like a DELQA to me). Right, apart from the fact that there is not really anything "equivalent" about them. >> >As for unibus, any advice at all would be great. If it matters, my 11/34a has both cache and floating point, 128kw memory, but I don't know if there are any operating systems with tcp/ip that will run on it. > As mentioned above, AFAIK, Unibus has DEUNA and DELUA, of which the latter > is the preferred model. No idea how hard it is to come across that. For > TCP/IP, I know Johnny Bilquist has a stack for RSX-11M+, but that won't > run on 128kW of RAM. TCP/IP is a bit of a tall order for a PDP-11, but > DECNET isn't, and Linux still works more or less fine with it. TCP/IP isn't really such a big problem either. It's not worse than DECnet. However, for various reasons I have chosed to write it explicitly only for M+. There is a commercial TCP/IP that works on 11M as well, and that is TCPware. Linux DECnet do not work well at all with RSX DECnet, in my experience. :-( > Speaking of: can anyone guide me as to how I should go about installing > DECNET on RSX-11M (not plus) 4.6? I'm having a hard time figuring out > which (if any) of the available images online will work for that version. > The tape images seem a bit hard to come by, and I've periodically scoured > Google looking for anything. Part of the problem is that I'm not as > familiar with the DECNET versioning system relative to the RSX one, so I > don't know what's compatible with what. Isn't the manuals around? Anyway, it's much more of a headache than under 11M. You need to create various regions for DECnet to live in, and you need to figure the sizes of these. Fiddly, but not really that hard if you know what you are doing and/or have the documentation. Johnny

13 years

2
1
0 0

Boat Anchor (could be any thread recently, aren't all the machines here supposed to be boat anchor candidates)

by jws＠jwsss.com

I subscribe to a group which is interested in PBY aircraft and related topics. I had to laugh when someone posted that they had acquired a boat anchor. Difference is on that group they guy actually had a 1700's boat anchor and not a tube oscilloscope or other test equipment or minicomputer. Arguably the 5160 thread is discussing a boat anchor. Jim

13 years

3
3
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test-drb