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

End users who pay insane amounts! Who wants to offer support for OLD systems on DOS?

by sales＠elecplus.com

I am working with a company in Canada that does manufacturing. Their software is old DOS, and the network is Novell. We have plenty of NIC cards that will work, but rather than pay $20 for mine with BNC, he is ordering his exact card from another company for $96 each! Their reasoning is that it takes more human hours to configure a different card than the price difference of the cards is worth. Also no support available any longer for these old systems and software, even though I sent him the exact drivers from the Novell page. Seems like some of you retired folks should offer your services to companies like these, get them up and going again. The kids they have in-house know NOTHING abt DOS or ISA! The purchasing agents can only go by exact PN that was in the old system, and they will pay through their teeth to keep them running. Cindy Croxton _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3343 / Virus Database: 3184/6361 - Release Date: 05/27/13

13 years, 1 month

2
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Pre-unicode Swedish character set?

by jonas＠otter.se

On Sun, 26 May 2013 15:58:53 -0700, Chuck Guzis <cclist at sydex.com> wrote: > "We have our own Philistines who gives up on us if we are not vigilant."? > > Probably not a very good Google-translation... We have our own Philistines who will attack us if we are not vigilant. /Jonas

13 years, 1 month

2
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Debugging Programs under RT-11

by jhfinedp3k＠compsys.to

Does anyone reading this list still write code to be run under RT-11? When a program has a bug, what do you use to find the problem? For debugging programs, SD: seems the most efficient way, especially when a Mapped Monitor is being used. Alternatively, ODT (VDT when Multi-terminal Support is included in the RT-11 monitor) can be LINKed into the program. Recently, I have been considering enhancements to the SD: variant, SDHX.SYS, which would reduce the Low Memory required along with adding an additional feature which is part of Ersatz-11. Specifically, SET PCLOG ON requests the Ersatz-11 emulator to save the addresses of the last 64 instructions that were executed. The the command SHOW PCLOG displays all 64 addresses at the users request. I would appreciate a response from anyone still writing and debugging programs that run under RT-11 and which debug package is being used along with the advantages and disadvantages that have been found. One big advantage of SDHX.SYS (actually all of the SD: variants) is that the user can request an automatic display of all of the register contents every time that a breakpoint occurs. The display occurs at the top of the screen each time the breakpoint takes place. The VT100 escape codes are then used to scroll down the screen and display each instruction in turn as it is about to be executed. One big disadvantage of SDHX.SYS is that it freezes the system completely, including the clock interrupts. The big advantage of VDT is that other jobs are able to continue running, but no other information is easily available when the program is stopped at a breakpoint. I would appreciate any response. Jerome Fine

13 years, 1 month

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RESCUE - IBM Model 83 Card Sorter Available in Chicago - must

by j＠ckrubin.us

Two updates to my original post - First, the machine is a model 82, not 83. Pics here: https://plus.google.com/photos/102693653878217706883/albums/588251870193151… Second, because of the time constraints, the machine will go to the first person who can commit to actually picking it up, not just expressing an interest. This thing is big, heavy, and at risk. My only concern is getting it rescued, not the timestamp of the first responder. Sorry if this seems arbitrary but I don't want to either be stuck with the machine myself or see it go to the scrapper. Jack

13 years, 1 month

1
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FDOS for Fluke 1720A

by geoffb＠vigilan.com

Does anyone have the O/S, Applications, and Diagnostice disks for this ancient IEEE 488 bus controller (Fluke 1720A)? It used a TI 9900 processor if I remember correctly. The operating system was called FDOS- a custom effort too I think, distributed on three 5 1/4" floppies. This is no longer available from anywhere or anyone, including Fluke. Thanks for any help and/or leads. Geoff

13 years, 1 month

3
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Pre-unicode Swedish character set?

by jonas＠otter.se

On Sat, 25 May 2013 21:38:17 -0700, Chuck Guzis <cclist at sydex.com> wrote: > > List: > > I'm working with some old media that has Swedish text on it. (8" SS FM > disks with 4 sectors of 1024 bytes per track--no OS or file structure on > it). > > I can probably figure out the structural details that I need with the > exception of modern Unicode or UTF-8 characters corresponding to what's > on the disk. > > Here's a binary dump sample of such a record (LIST format): > >> >?000500 00 00 00 00 00 00 00 00-00 00 00 00 00 3C 44 65 <De >> >000510 74 20 76 61 72 20 66 FE-6F 72 62 61 6E 6E 65 6C t var f?orbannel >> >000520 73 65 6E 3E 0A 00 00 00-3C 73 6F 6D 20 64 72 65 sen>? <som dre >> >000530 76 20 6F 73 73 20 62 6F-72 74 20 66 72 FA 61 6E v oss bort fr?an >> >000540 20 53 61 6D 73 6F 6E 2E-3E 0A 00 00 00 00 00 00 Samson.>? > Note the characters FA and FE in this sample. > > Can anyone help with this thing? > > --Chuck FE 6F = ? (o with two dots above) FA 61 = ? (a with a ring above) The text, translated, goes: <It/that was the curse> <which drove us away from Samson> It or that depending on the context. /Jonas

13 years, 1 month

1
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Help identifying (and finding docs for) Dataram core memory board

by derschjo＠gmail.com

Hi all -- I have a pair of core memory boards (which look to be 8kilobytes + parity) in my Imlac, made by Dataram in the early 1970s (based on datecodes in the machine, I'd say late 1973, early 1974). I can find no documentation on them. They're labeled Imlac on the main PCB (P/N 01-12880-1), but Dataram on the core plane, and interestingly, this Blog post on Dataram's site: http://www.dataram.com/blog/?p=163 Has a very grainy picture of the assembly -- see the photo here: http://www.dataram.com/blog/wp-content/uploads/2012/08/40yrs_7.png So I believe the whole assembly (PCB + core plane) was actually made by Dataram. I have some high-res scans up at: https://plus.google.com/u/0/photos/117997069161125071032/albums/58762337385… (See the last two images in the album.) I'd love to find schematics for this, as it's the only part of the system I do not have documentation for (and it's going to need some repair, as it's got some fairly serious moisture damage -- some of the ICs are weathered enough that they're unreadable). I'm going to shoot a mail off to Dataram as well, but I figure my odds there are pretty low. Thanks as always, Josh

13 years, 1 month

2
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My <nothing for a while> on YouTube

by terry＠webweavers.co.nz

Hi, Some on this list might have been following my collection videos hence this message. Today while filming my "now fixed" Epson QX-10 (many thanks to Fred Jan Kraan for the replacement PSU), my camera had it's own failure. It appears terminal so I need to replace it. This may take a while as I'm not flush with cash at the moment. It's likely to be a few weeks before I can resume the project. The camera itself was somewhat vintage (2004) so the good news is the live sound and picture should be better once I've sorted the new kit. Just not sure when that will be though. Terry (Tez)

13 years, 1 month

1
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3471 terminal

by jce＠seasip.demon.co.uk

> I'm not positive. I think I read somewhere that the protocols PC and 3270 > style keyboards use are different enough that it wouldn't be easy to make an > adaptor to connect a 3270 type keyboard to a PC. The protocol used by 122-key 3270 keyboards is pretty much the same as the AT / PS/2 one. In fact, it's more the other way round; the original 84-key AT keyboard is a cut-down version of the 6110344 122-key terminal keyboard. They use the same microcontroller and scancodes. The differences in the protocol are minor. If you just plug a terminal keyboard into a PS/2 keyboard port, it may work in DOS, it will work in Linux (using the 'atkbd.terminal=1' boot parameter) but won't work in Windows without a patch to the keyboard driver. It's also possible to make 6110344-type keyboards (if they're model F, not model M) completely compatible with the PC by substituting the microcontroller ROM from an 84-key AT keyboard. Or by burning a custom 8748: <http://www.seasip.info/VintagePC/ibm_6110344_cswap.html> There is also at least one converter, which will work with any variant of the terminal keyboard: <http://deskthority.net/workshop-f7/xt-at-ps2-terminal-to-usb-converter-with…> -- John Elliott

13 years, 1 month

2
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seeking MS-DOS files from ftp.cdrom.com

by nigel.d.williams＠gmail.com

I am looking for files from the directory below that once found a home on ftp.cdrom.com, but so far searching the various compilation CDROMs (like Walnut etc) has drawn a blank. http://mirrorservice.org/sites/ftp.cdrom.com/pub/cdrom/cdroms/math/global.t… If anyone has the ISETL*.ZIP files [*] from the directory cdroms/math/msdos/discrete/ or even the whole directory, I would be interested to receive a copy please. If you have a mirror of that site it would be good to get it copied to mirrorservice.org so we have a public copy too. thanks, nigel. [*] I found the ISETL.ZIP file but would like the source-code too. ISETL is an implementation (interactive interpreter) for the SETL programming language.

13 years, 1 month

2
2
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IBM 3174 architecture/internals

by BHuntsman＠mail2.cu-portland.edu

Hi there! Anyone on this list know much about the internals of the IBM 3174's, like what processor architecture they're based on, etc, and how the "Configuration Support" operating system for them was written/compiled? Thanks in advance for any info! -Ben

13 years, 1 month

4
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news wire teleprinter - what protocol?

by n8uhn＠yahoo.com

Hi all, i have an old teleprinter with an rca logo on the front that is sitting on an extel interface box. the extel model is AN 11R 155 it was used with a upi or api wireline. the interface has a crystal selector switch and i have no idea what that is for or why it used xtal's on wireline. the printer is dot matrix but not 9 pin. What two wire interface and protocol did this use? i'm thinking eather 20 ma current loop or some odd subcarrier audio line. anyone know? Bill

13 years, 1 month

1
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Decwriter III

by brian＠quarterbyte.com

I just picked up the Decwriter III that was up on the San Francisco bay area craigslist. Neat young guy had found it set out for the taking on a sidewalk in Berkeley a few years ago & had been using it as a typewriter. That's class. So now I'll break open the maintenance manual. Fans but no lights. There's a flowchart for that. It's missing the 1 and 4 numeric pad keycaps but I'll worry about that later. Otherwise it looks to be in great shape.

13 years, 1 month

2
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LA180 / DecWriter I

by dm561＠torfree.net

----- Original Message ----- Date: Fri, 24 May 2013 13:02:37 -0400 From: Jonathan Gevaryahu <jgevaryahu at gmail.com> Speaking of dec teletypes/old printers, does anyone have one and the means to read out the contents of the firmware roms? The only one I have roms for right now is the LA50 (and only the later roms), and I'm trying to archive all the others (including/especially the rare ones) to make it easier for people to repair these printers/teletypes in the future. ------ Reply: Not particularly rare, but I'm scrapping some LA100RO printers; email me off-list if you want ROM images. mike

13 years, 1 month

2
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Looking for Arraid AEM-1 SMD drive emulator operation info/commands

by bub7734＠yahoo.com

I'm looking for operation information on the Arraid AEM-1 SMD disk emulator. Does anyone have infomation on the operation of this device they can send me? I'm looking any information on the commands used to setup/configure the device through the serial port. TIA, -scott

13 years, 1 month

1
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[cctalk] Re: LA180 / DecWriter I

by bub7734＠yahoo.com

> > > Actually I posted a very brief one here: > > > http://www.youtube.com/watch?v=Ew_HLX2AVC8 > > > > > > Once I have the cover on and the new ribbons etc I will do a better one. > > > >?? Nice!? Wow, that's some serious key echo lag.? Was that to a remote > system > > on HECnet, or something local?? (the caption wasn't specific) > > > >?????????????? -Dave > > > > -- > > Dave McGuire, AK4HZ > > New Kensington, PA > > Yes there is some lag. That is to SIMH running on my local PC. I don't know > the cause but I wonder if it is the serial interface code in SIMH. > > Regards > > Rob Is that a FreeBSD host running the simh? FreeBSD has some strange problems with its serial ports since they went from the sio(4) to uart(4) drivers.?? If you do have FreeBSD, let me know and I'll track down the fix I performed on my system.?? (I'm running serial teletypes to simh running hp2100 and TSB). If it's not FreeBSD, double-check your PC-side settings for bits, parity and stopbits. -scott

13 years, 1 month

1
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My mystery console, revisited

by jon＠jonworld.com

Folks, A while back I posted about a mystery console a FOAF picked up at a DRMO auction. I wound up purchasing an extra one from him for my own use and to help identify it. The internal components are interesting. An 800x600 LCD display that takes XGA/VGA input. An AT-based keyboard. Some of the trackballs are serial mice, and I think the joystick is PC-style joystick. Two photo albums: http://imgur.com/a/tsxCP http://imgur.com/a/t1eS9 I was originally led to believe this kit was US Navy, but after some googling and guesswork I'm thinking its Air Force. The massive multi-pin connector on the back looks similar (but it isn't the same) as the connectors used to the ROLM 1602. Any ideas?

13 years, 1 month

5
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Building extender boards -- finding protoboards w/edge connectors?

by derschjo＠gmail.com

Hey all-- I'm going to need to build an extender board or two for my Imlac in the next few weeks toaid in debugging. (Now that I have the power supplies up and running, there are a lot of stuck bits here and there in the CPU and it'd be really, really useful to have easy access to the chips for testing.) The cards have an 80-pinedge connector (40 pins per side) with a .125" spacing (same as S-100). I figured I'd look fora source of prototype boards & edge connectors with .125" spaced fingers on them and build a couple by hand, but I'm not having a great deal of luck finding the boards. Digi-Key comes close in that they actually have S-100 prototype boards listed, but of course theyhave none instock; this - http://www.digikey.com/product-detail/en/4610/V1111-ND/146808 - is close but has too few connectors. I suppose I could track down an S-100 prototyping / extender board and hack it down to the right size but I'd rather not destroy something. And since I'm only going to need one or two of these I don't see a lot of sense in having some fabricated. Any suggestions on where to find parts for this project? Thanks, Josh

13 years, 1 month

4
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"Build a 32K RAM Board for the PDP-8/e" article published on Tronola.com

by steve＠tronola.com

Hi folks, I'm pleased to announce that we have just published a new vintage computing article on Tronola.com: "Build a 32K RAM Board for the PDP-8/e". You can read it here: http://www.tronola.com/html/ram_for_pdp-8e.html It includes a new look at interfacing memory to the Omnibus. -- Comments and corrections are welcome. Thanks, Steve Lafferty http://www.tronola.com

13 years, 1 month

2
1
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LA180 / DecWriter I

by jgevaryahu＠gmail.com

Speaking of dec teletypes/old printers, does anyone have one and the means to read out the contents of the firmware roms? The only one I have roms for right now is the LA50 (and only the later roms), and I'm trying to archive all the others (including/especially the rare ones) to make it easier for people to repair these printers/teletypes in the future. -- Jonathan Gevaryahu jgevaryahu at gmail.com jgevaryahu at hotmail.com

13 years, 1 month

2
1
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Altos 3068 Computer Available

by technobug＠comcast.net

A friend is closing down a business and in the process of cleaning out an attic we came across subject computer and monitor. If interested, email me off-list and I'll put you in contact. ->CRC

13 years, 1 month

2
1
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3471 terminal

by BHuntsman＠mail2.cu-portland.edu

Hi All! Sorry for the noise, but I just landed my first real 3270-type terminal. It's a 3471, and has a pretty nice keyboard. It unfortunately did not come with the key. Anyone know how to get into the setup mode? Thanks much as always!! -Ben

13 years, 1 month

6
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SMD Parts Wanted (CDC 9762)

by bpettitx＠comcast.net

I was contacted this week by a parts broker looking for SMD heads. These are the part numbers: 75010102; 75010103; 75010105. Unbelievable to me is that a bunch of SMD's are still in active service at a government facility. These drives have to be close to 40 years old! If anybody on the list has some of these heads and wants to sell, contact me and I will put you in touch with broker. He makes a living reselling these old parts, so I imagine that he does very well. And might not be overly generous. You will have to negotiate with him - I'm not going to be a middle man. Used parts may be of slight interest though I discouraged him from using them. It just blows my mind that some SMDs are still in service. I would love to know the story here. Billy Pettit bpettitx at comcast.net

13 years, 1 month

1
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Next box with 1991 web page(s) password protected

by barythrin＠gmail.com

Also depends on the file system I don't own a next so don't know if its standard ufs file system to properly mount. I had that problem with irix machines and a lack of bootable media with support for ifs or whatever it was. I ended up editing the disk directly, finding the root: string and overwriting it with a known md5 hash. Not the worst time spent but certainly could save someone else from the frustration. ------Original Message------ From: Ryan K. Brooks Sender: cctalk-bounces at classiccmp.org To: cctalk at classiccmp.org ReplyTo: General Discussion: On-Topic and Off-Topic Posts Subject: Re: Next box with 1991 web page(s) password protected Sent: May 24, 2013 4:01 PM On 5/24/13 3:18 PM, Jim Stephens wrote: > Any idea how hard it is to hack the password on a Next box? > > http://www.bbc.co.uk/news/technology-22652675 Boot into single user and crack the unshadowed passwords. Or mount the disk elsewhere and do the same.

13 years, 1 month

2
1
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Omnibus to USB - still some boards left!

by mcguire＠neurotica.com

On 05/17/2013 03:31 PM, Cory Smelosky wrote: >>>>>>> IDE interface, or better, a SCSI and/or ST-512-to-IDE interface ;o) >>>>>> >>>>>> For the PDP8? No way...! >>>>>> >>>>> >>>>> IDE on a PDP-8 would be...interesting to say the least. >>>> >>>> It's been done before.. >>> >>> People are strange. That says a lot coming from me, too... >> >> Well, RK05s, DF32s, and TU56s are pretty hard to come by. > > True. I'm just not too fond of IDE. ;) Oh, IDE blows dog, there's no question about that amongst people who have any technical clue whatsoever. But it IS easy to interface to...I've even done it (as have many others) with a microcontroller and a few dozen lines of code. Try doing that with (for example) SATA...one would be lucky to even get the physical layer talking. There is *nothing* ATA-like about SATA beyond the name. -Dave -- Dave McGuire, AK4HZ New Kensington, PA

13 years, 1 month

24
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RESCUE - IBM Model 83 Card Sorter available in Chicago - must go by 5/31/13

by jack.rubin＠ameritech.net

A friend of mine has a classic model 83 card sorter available for pickup in Chicago. He must vacate his building by the end of the month (next Friday). Unit has been well stored, unused for years. BIG - approx 5 ft long, 4 ft high, weighs 500+ lbs. Lift-gate truck a must for removal. Contact me directly, since I'm on the digest and don't get real time feeds from cctalk. Jack

13 years, 1 month

1
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GEC OS4000 Diskette Format

by colineby＠isallthat.com

All, I'm researching into the diskette format which might have been used on a GEC 4000 series computer running OS4000. The media I'm attempting to archive is 5.25" DSDD, and I've been through the obvious formats. I'm fairly certain it's MFM encoded based on the bit pattern histogram. Anyone know different / better / more? Cheers, Colin

13 years, 1 month

3
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Sun parts needed by a dealer, if you want to get some money from your collection

by sales＠elecplus.com

Time to turn the tables a bit, and see if maybe we can help a dealer who needs some older things: I am looking for the following: 3 x SG-XTAPDAT72-D2 or 380-1323 4mm DAT72 Desktop Assembly/FRU 3 x 540-7792, SEUX2MM2Z, T5240 Memory Mezzanine 1 x 370-2176 4mm DDS-2 Tape Drive 8 x 540-4525, X6724A 36GB 10K FC-AL HDD 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: 2013.0.3343 / Virus Database: 3184/6348 - Release Date: 05/22/13

13 years, 1 month

1
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oldies in the warehouse

by sales＠elecplus.com

These are in my warehouse; I can test if needed. These huge old monitors will NOT ship well on UPS! I can do pallet shipping if someone wants these. Esprit 250C Intelligence Units, qty 7 new, qty 51 used (uses AT kbd) Esprit 350C Intelligence Units, qty 5 new, qty 16 used (uses PS2 kbd) HP A1097C monitor, 3BNC SGI CM280863SG, 3BNC, qty 2 GTE HM-4419D 5 BNC (Hitachi) NCR2900-1102-7100 (3 x 25pin F) Harris 3665-ATA qty 2 Esprit 125C qty 2 CT224 qty 1 Data General 17C with logic base, qty 1 NEC JC-2001VMA 4 BNC + VGA VR290 qty 3 IBM 5894000 with logic, very clean IBM 81X4511 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: 2013.0.3343 / Virus Database: 3162/6347 - Release Date: 05/22/13

13 years, 1 month

6
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Happy 23rd birthday, Windows 3.0 • The Register

by woyciesjes＠sbcglobal.net

http://www.theregister.co.uk/2013/05/23/microsoft_windows3_birthday/ -- --- Dave Woyciesjes --- ICQ# 905818 --- CompTIA A+ Certified IT Tech - http://certification.comptia.org/ --- HDI Certified Support Center Analyst - http://www.ThinkHDI.com/ Registered Linux user number 464583 "Computers have lots of memory but no imagination." "The problem with troubleshooting is that trouble shoots back." - from some guy on the internet.

13 years, 1 month

2
1
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Esprit thin clients

by sales＠elecplus.com

All of the Esprit 250C new ones are gone. So there are still some used 350C and 250C at $15 each, sold untested. 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: 2013.0.3343 / Virus Database: 3184/6348 - Release Date: 05/22/13

13 years, 1 month

2
1
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SWTPc equipment

by dbetz＠xlisper.com

If anyone here is interested in purchasing SWTPc equipment could they please contact me off list? I have a SWTPc 6800 system with both a 6800 and a 6809 board and various other boards that I'm interested in selling and I'd rather not go to eBay if I can avoid it.

13 years, 1 month

1
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correction to the list

by sales＠elecplus.com

The master box says 350C on the outside, but when I went to pack some, they are actually 250C. So I have new and used 250C, and used 350C 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: 2013.0.3343 / Virus Database: 3184/6348 - Release Date: 05/22/13

13 years, 1 month

1
0
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Why is the Apple M0131 external 3.5" floppy "HFS only"?

by ethan.dicks＠gmail.com

Hi, All, I'm cleaning up some older stuff and I have a couple of external Mac drives back from when I used to use them on a regular basis. I have a 400K M0130 shell (the drive died long ago and the external cable disappeared after loaning it out nearly as long ago) and I have a few of "beige" and "platinum" drives. Right here and now, I have an M0131 in front of me. Google tells me that it's 800K drive for Mac only (not Apple II), and that if I want to use it with an old Mac, it has to be one with either the newer ROMs (i.e., not a 128K or 512K) _or_ I have to run the ancient HD20 HFS background task (which only works with the 512K, presumably due to memory usage). I get why I'd need a ROM extension to use it to read/write an HFS disk, but why would this drive not work with an unexpanded 128K or 512K Mac as a single-sided 400K MFS drive? I know Amigas have an "IDENT" feature so that the machine can wiggle some of the control lines and get back if the drive is 3.5" or 5.25". Did Apple do something like that? Ultimately, I just want to have an external drive on the 128K Mac I have sitting right here. I'd _love_ to have an original working M0130 but I don't need to buy one if I can use something already have here. Does anyone know technical reasons why the M0131 is different from the M0130 besides the different mech (slim-line 2 heads vs full-height 1 head)? I have a memory that the external cable is different by one pin (head select? head data?) but it's a fuzzy memory. Might it be possible to "cut" the pin (via an adapter, not with clippers!) to make an 800K drive appear and act like a 400K drive to a Original-ROM Mac? Thanks for any input and pointers. All I've turned up is that they are different and that the M0131 works with a 512K (with software) or 512Ke (new ROMs) natively. If anyone happens to have cheap guts for an M0130, I have a shell I wouldn't mine repopulating. The aluminum RF shield is also long gone, but that can be approximated. Thanks, -ethan

13 years, 1 month

8
12
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Eprom upgrade for KIP 2900 scanner/printer

by jrr＠flippers.com

OK, long shot here, but I figured someone here might actually have the old (1999) KIP 2900 series scanner/printer and as such may be able to help me get a copy of the Eprom upgrade so I can scan and save files to an XP based machine. The scanner is model 2012, and it currently has version 49102 (U225) Eprom code on the CPU module - I'm looking for something if at all available. You see, (there is a computer here) it is an obsolete machine, and perhaps not a classic - still someone may be using one of these wide format scanners (up to 36" wide by 56 feet!) and can help. Thanks, John :-#)#

13 years, 1 month

1
0
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HD floppies on a ZX Spectrum

by lproven＠gmail.com

This might be a silly question... Since the specs of the MGT +D disk interface are now out there in the public domain... http://www.worldofspectrum.org/NotThePlusD/ ... but 720kB 3?" floppy drives are getting rather scarce, I was wondering... would it be viable to build a version that supported 1.4MB "HD" drives? I realise this would mean a different FDC chip, but are there other implications apart from tweaking the DOS? I know few 8-bits supported HD disks, but I don't really understand why. My electronics knowledge is poor. (Cue Tony Duell.) I am guessing that an 8-bit would struggled to read/write data fast enough to keep an HD diskette controller supplied with data, but I was wondering if that could be overcome with interlacing or adding some cache RAM? This is probably a completely pointless exercise - people seem more interested in using CF or SD media these days, but I enjoy the nostalgic element of actual floppy diskettes. -- 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 month

8
20
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My first "Computer"

by sales＠elecplus.com

My first "computer" was not really a computer per se, but was a learning machine made by Welch Allen Scientific. It consisted of a video display that you would wind a filmstrip through, with 5 buttons labeled A-E below the screen. The filmstrip presented a subject (mine was Algebra), giving basic background info and instructions for 3-5 screens. After the intro, you were given a problem to work out, with 5 multiple-choice answers at the bottom. If you pressed the correct button, it took you to the next section. If you pressed the wrong button, it knew which thought process you had gotten wrong, and took you back to that set of instructions again. The second set of questions was different than the first set, if you missed the first one. It was a great learning tool, and one I have never seen repeated in ANY Algebra program I have tried since! None of them now seem to know WHY you missed the problem, which this early system did understand. 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: 2013.0.3343 / Virus Database: 3162/6347 - Release Date: 05/22/13

13 years, 1 month

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Switches for Netcom DLV-11J/2?

by fraveydank＠gmail.com

Hi all, I have a two-port SLU for QBUS which appears to be a third-party, two-port version of the normal DLV11J. I'm having trouble coming up with documents describing the CSR and vector switch settings; there is a 12-switch block and a 10-switch one. It doesn't seem to correlate with the Sigma DLV11J clone I have (for which I have docs) which has DIP switches instead of jumpers for the settings. If anyone has docs for this board, I'm interested. Otherwise, I can reverse engineer it (it's only 2 layers and uses nothing but bog-standard parts). - Dave

13 years, 1 month

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More Shameless Classic Computer trafficking.

by ittybittybytes＠gmail.com

More Stuff going up tonite at about 8pm. All with Buy-t-now for instant gratification. VAX VLC IS68K Qbus CPU Volker Craig VC404 I'll also be putting up some more stuff later this week: old Unibus expansion chassis, backplane and Power supplie(s) (former "project" I'll never get around to) DEC PDP 11/23+ w esdi controller and disks so keep watching http://www.ebay.com/sch/tcp1022/m.html?item=251277989792&ssPageName=STRK%3A… As always, mention you are a list member and I usually throw in some good stuff as a bonus. And thanks to all on this board who been buying my stuff, much appreciated.

13 years, 1 month

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USB to Omnibus interface news

by hachti＠hachti.de

Hello everybody, a few days ago I introduced my USB to Omnibus adapter module. I'd like give you an update. As you might have seen on pdp8.hachti.de?gallery/omnibus_usb the board I made first was only half height and used three CoolRunner II CPLDs. I made a slight redesign of the board: - Full size Omnibus board. One could even mount DEC handles if he wanted to. - CPLD is now one big XC9572XL-TQ100. - Added working DIP switches, TX and RX device code are freely selectable. The board still uses the 7438 as bus drivers. And YES - I still use the "wrong" drivers. As Plessey did on their RK05 controller... And that controller is said to be more reliable than the original RK8E. So 7438 cannot be the worst choice. So please no more discussion about that. I'm very sorry that I just don't have a really loaded PDP8/e at hand to test the board. But I tried my best and loaded the test system with some hardware which was just at hand: - Front panel - Two backplanes in system - CPU + EAE - M837 memory extension and time share - KL8J terminal at 03/04 and 9600 baud - 24K core memory (3x8) - RK8E - TD8E - MI8-EA bootstrap diode board - Bus loads - OMNI-USB :-) That makes 24 boards in the system. Without the core memory boards which don't use anything than ground it's still 21. There are 13 slots left. The sytem is running OS/8 while I'm writing this. It just works. Booting works, transferring data over USB works, TD8E worked (until the TU56's PSU broke down a few minutes ago :-), RK8E works, terminal works. Looks good. Oh, kermit runs so fast...! I have decided to make a 25 piece batch of the new board. A prototype without gold fingers (it will have gold fingers in the end) can also be seen in my new webshop: http://shop.hachti.de Price is EUR 105 without any tax and any shipping. Shop initially displays EUR 125 incl. German VAT. Shipping of the boards will be in the beginning of April. April 2nd seems to be a bit too optimistic due to PCB manufacturing time. But I'm quite condident that it will be in the first week of April. You can already order/pay now. I very much appreciate that because it helps me to pay the boards and parts. The other effect is that I'd get a real resonance. Currently a handful of people told me that they want 15 boards. Some of them already ordered (big THANK YOU!), some are very quiet. Kind regards Philipp -- Dipl.-Inf. (FH) Philipp Hachtmann Buchdruck, Bleisatz, Spezialit?ten Alemannstr. 21, D-30165 Hannover Tel. 0511/3522222, Mobil 0171/2632239 Fax. 0511/3500439 hachti at hachti.de www.tiegeldruck.de UStdID DE 202668329

13 years, 1 month

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Anyone have a spare DEC M7261?

by ian_primus＠yahoo.com

My PDP11/05 has a faulty control board - M7261. The deposit function doesn't work. I've traced it back, and I'm pretty sure it's a fault in one of the microcode PROMs. While I'm sure this is fixable, I would like to see this machine do something else, so I figure I'd check if anyone happens to have a spare board before I spend many more hours trying to fix this. -Ian

13 years, 1 month

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It makes me cry!

by sales＠elecplus.com

I just talked to one of my recyclers in WI; they destroyed all their "monster machines" last month, including 6' DEC cabinets, Cray servers, Big Blue IBM cabinets, etc. He promises he will save them in the future, IF I can promise that someone will take them for more than scrap value. So, if you can take LARGE old servers from WI, please let me know. They will palletize properly for shipping. R2 certified recycler, so these must stay in US, and there will be paperwork to be filled out, since these will be sold untested. 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: 2013.0.3343 / Virus Database: 3162/6341 - Release Date: 05/20/13

13 years, 1 month

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Dumb Question

by jon＠jonworld.com

Folks, Recently we were talking about a business automation device that used paper tape for storage; typically someone would enter data like an address on paper tape, then it would read the paper tape back through to print the address on an envelope for billing. It was a specific device/name and it was very 60s/"Mad Men" in appearance. I can't remember the name. Someone found one in an attic in MN or something. Thanks!

13 years, 1 month

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My Sinclair XL on YouTube

by terry＠webweavers.co.nz

Another YouTube video featuring one of my computer rest-home residents. This time the fascinating but regrettably compromised Sinclair QL http://youtu.be/kCKercQxHrk Terry (Tez)

13 years, 1 month

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SFO: Free RL01

by silent700＠gmail.com

Spotted by a fellow ccmp'er. Not mine, not local to it, not able to touch it myself, etc etc: http://sfbay.craigslist.org/nby/zip/3809002508.html

13 years, 1 month

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Metheus Omega & Motorola Exormacs docs -- already archived?

by derschjo＠gmail.com

Hi all -- I picked up some stuff on Sunday(thanks again, Jim!) that came with a pile of documentation; as far as I can tell this stuff hasn't been archived (and there's precious little information about these systems available as it is). Before I look into getting this stuff scanned I wanted to make sure it hasn't already been coveredso I don't waste time duplicating prior effort. I also don't know how much interestthere is in this stuff, so that factors in as wellto how soon I get around to doing anything about it :). Though the Metheus stuff looks seriously cool. - Josh Here's what I got: Metheus Omega 300/400/others: - Service Manual (dot matrix printout) - Schematics on 8.5x11 (not sure how complete) - Printout of "Display Module Microcode Definition Program" and associated notes - Misc notes: Several sheets of signal timings, PAL definitions, I/Oconnections - "Micro-Code Class" - a brief tutorial on how to write microcode for this thing (fun!) - "Omega 400/Omega 500 Display Controller Custom Interfacing" - "Hardware Reference Manual For the Omega 2000-Series Graphics Controller (004-03307-00)" - FEP Schematics - B/C/D-size blueprints for what looks like an entiremachine(300series) >from chassis down to logic PCBs - Omega 400 "Terminal Interface Operator's Manual" (004-02552-00) - "GRAFIN2User's Manual" (004-02704-01) - "Omega 400/DC Display Controller and Omega 400/GS Graphics Subsystem Operator's Manual (004-01085-01) - "Omega 500 Display Controller Reference Manual (004-02207-00)" Motorola EXORmacs / EXORterm 155: - "EXORterm 155 Display Console User's Guide" (includes schematics) - "EXORmacs Development System Operations Manual" M68KMACS(D9) - "VERSAdos Messages Reference Manual"M68KVMSG(D1) - "Resident Pascal User's Manual" M68KPASC(D4) - "VERSAdos Overview" MS68KVOVER(D1) - "VERSAdos System Facilities Reference Manual" M68KVSF(D1) - "CRT Editor" M68KEDIT(D6) - "System Generation Facility User's Guide" - "M6809 Cross Pascal Compiler On EXORmacs User's Manual" M6809XPASC/D1 - "Resident Structured Assembler Reference Manual" M68KMASM(D4) - "MACSbug Monitor Reference Manual" M68KMACSBG(D1) - "SYMbug/A and DEbug Monitors Reference Manual" M68KSYMBG(D1)

13 years, 1 month

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DEC VT240,320 monitors available in Maryland

by tosteve＠yahoo.com

Mary Lou wrote me. She said: ------------------ My husband and I both worked for DEC. We would like to find a home for the ollowing: Digital Equipment Corp products. VR241A Monitor VT240 VT320 LK 201 keyboards (2) Thank you, Mary Lou Olbay101 at aol.com ------------------

13 years, 1 month

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DEC VT240,320 monitors available in Maryland

by tosteve＠yahoo.com

Mary Lou wrote me. She said: ------------------------------------ My husband and I both worked for DEC. We want to find a home for these: VR241A Monitor VT240 VT320 LK 201 keyboards (2) Thank you, Mary Lou Olbay101 at aol.com ------------------------------------

13 years, 1 month

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8086, 286, 386, 486

by bobvines00＠gmail.com

> Date: Mon, 20 May 2013 10:50:06 -0500 > From: "Cindy Croxton Electronics Plus" <sales at elecplus.com> > To: "'General Discussion: On-Topic and Off-Topic Posts'" > <cctalk at classiccmp.org> > Subject: RE: 8086, 286, 386, 486 > Message-ID: <023301ce5571$b35b8cf0$1a12a6d0$@com> > Content-Type: text/plain; charset="us-ascii" > > If you have an account on LinkedIn (it is free) go to > http://www.linkedin.com/groupAnswers?viewQuestionAndAnswers=&discussionID=24 > 1183697&gid=2353952&commentID=138580187&trk=view_disc&ut=3RVQDJ0rGPaRM1 > > > Cindy Croxton > Electronics Plus > 1613 Water Street > Kerrville, TX 78028 > (830)792-3400 phone (830)792-3404 fax > AOL IM elcpls > Cindy, LinkedIn says "To view this discussion, join the group" even if you are already a member of other LinkedIn groups. You have to join the group to which the posting was made. Bob

13 years, 1 month

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Original Apple square 9-pin mice

by sales＠elecplus.com

For those of you that were looking, please try www.applerescueofdenver.com. They seem to have some. Cindy Croxton _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3336 / Virus Database: 3162/6338 - Release Date: 05/19/13

13 years, 1 month

2
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