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101090 discussions

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

12 years, 10 months

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

12 years, 10 months

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

12 years, 10 months

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

12 years, 10 months

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.

12 years, 10 months

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

12 years, 10 months

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.

12 years, 10 months

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

12 years, 10 months

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

12 years, 10 months

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 :-#)#

12 years, 10 months

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

12 years, 10 months

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

12 years, 10 months

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

12 years, 10 months

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.

12 years, 10 months

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

12 years, 10 months

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

12 years, 10 months

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

12 years, 10 months

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!

12 years, 10 months

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)

12 years, 10 months

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

12 years, 10 months

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)

12 years, 10 months

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 ------------------

12 years, 10 months

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 ------------------------------------

12 years, 10 months

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

12 years, 10 months

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

12 years, 10 months

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