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101090 discussions

Data General 5 1/4 in external diskette unit available

by mnusa2＠hotmail.com

Hi All, I found an external 5 1/4 in. diskette unit in a Data General enclosure. Model no 2233 Serial no 5010367 220-240 V unit. Teac drive and teac controller inside. ICs have -84 codes in them. D37 connector in the back. Not tested. Followups by email if anyone is interested. BR. Matti Nummi _________________________________________________________________ Liity perheeseen - Hanki nyt seuraavan sukupolven ilmaiset Windows Live -palvelut http://get.live.com

17 years, 11 months

Removing side panels of DEC mini rack

by silvercreekvalley＠yahoo.com

Thanks for the info on TK50 SCSI tapes, I need to think on that... Another quick question. I have a half height DEC rack its probably from the late 80's early 90's. It has brown side panels (and a brown rear panel). I'm wondering if there is a way to remove the side panels, the rear panel comes off easily. Thanks Ian ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ

17 years, 11 months

reel to reel

by slawmaster＠gmail.com

So I'm looking at a Teac reel to reel deck going for $25. It comes with 6 tapes, which judging from the prices on ebay is a pretty good deal. What I'm wondering is if anyone can tell me about the kind of life I'd be getting out of these tapes. I don't plan to record too much (I'm not in a band or anything) but my friends and I would probably be making recordings from time to time and I expect that I would eventually want to reuse some of the tapes; how many times can you usually write to these before you start seeing a noticeable degrading in sound quality? John -- Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn

17 years, 11 months

reel to reel

by cfox1＠cogeco.ca

At 12:51 AM 4/22/2008, you wrote: >So I'm looking at a Teac reel to reel deck going for $25. It comes >with 6 tapes, which judging from the prices on ebay is a pretty good >deal. What I'm wondering is if anyone can tell me about the kind of >life I'd be getting out of these tapes. I don't plan to record too >much (I'm not in a band or anything) but my friends and I would >probably be making recordings from time to time and I expect that I >would eventually want to reuse some of the tapes; how many times can >you usually write to these before you start seeing a noticeable >degrading in sound quality? > >John >-- >Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn From experience with endless loop tapes, I would say you are safe with several hundred plays. i would also suggest you line up spare capstan belts for your Teac recorder. Charles E. Fox Video Productions 793 Argyle Rd. Windsor, Ontario 519-254-4991 N8Y 3J8 www.chasfoxvideo.com

17 years, 11 months

Supra 33.6K external modems available

by rescue＠hawkmountain.net

Anyone want any of these. Nice old classic modem in extruded aluminum housing. I have power supplies (might have more modems than supplies however). If these don't move, I'm going to reclaim the aluminum. If you want one or more, make an offer, I'm looking to reclaim space. Located in Sharon, MA 02067. -- Curt

17 years, 11 months

DEC LN03 toner, maintenance kits, and font/etc cartridges

by rescue＠hawkmountain.net

I have the following: LN03X-TA (qty 3) toner LN03X-AD (qty 2) maintenance kit (I believe this includes toner) LN03X-CR (qty 2) memory font cartridge LN03X-CX (CG Times 24) font cartridge LN03X-CW (CG Times 14 18 18bold) font cartridge LN03X-CY (CG Triumvirate 8 10 10bold 12 12bold) font cartridge LN03X-CB (CG Times 8 10 10bold 10italic 12 12bold) font cartridge I no longer have an LN03. If you are interested in one or more of these items, make an offer. -- Curt

17 years, 11 months

DEC mini cabinet

by silvercreekvalley＠yahoo.com

Just a little more info on the DEC cabinet, it does appear to have a part number H9642-DC if that is of any help. The side panels do appear to be quite well 'stuck' and I cant see any obvious bolts, but I did notice that the cross bars on the panels have slots (one is visible). Thanks Ian ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ

17 years, 11 months

Colorbus card and cables for SGI Indy

by rescue＠hawkmountain.net

anyone have any interest ? -- Curt

17 years, 11 months

QMS PS810 printer parts

by curtis＠hawkmountain.net

Anyone need any ? mainboard is good, front display is good, fuser gone, power supply unknown. It is my way and I don't want it (I have too many printers already). Let me know ASAP if there is anything you want of it. Free if you pickup (the whole printer). If you want a specific part removed, $10 + actual ship (for as many parts as you want off it, I'll remove what you want and ship it). If you want it and are picking it up, you can pick up in Sharon, MA (evenings/weekends) or Cambridge, MA (days). -- Curt

17 years, 11 months

VAXstation 3100 and DecWindows

by RodSmallwood＠mail.ediconsulting.co.uk

Very interesting but no reference to my problem I'm afraid. I have gone back to the start, cleared the hard drive, installed VMS 7.3 and registered the license (choosing the right support files etc.) Then I loaded the DW-MOTIF layered product and registered the license. In both cases I followed the install instructions to the letter. 1. It does not come up or even attempt to come up in windows. 2. If you run the IVP and enter the node name or WSA0 (the device name) it simply says "cannot open display" 3. I am exactly where I was on Friday. 4. Until I find out what "Cannot open display" means I'm stuck Regards Rod -----Original Message----- From: cctech-bounces at classiccmp.org [mailto:cctech-bounces at classiccmp.org] On Behalf Of Chris H. Sent: 20 April 2008 02:35 To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: VAXstation 3100 and DecWindows 2008/4/19, Rod Smallwood <RodSmallwood at mail.ediconsulting.co.uk>: > Now for my ultimate goal; load and run DECWindows. I ran the install > as per the manual (that's a book that tells you everything you don't > need to know and nothing that you do). - http://icanhaz.com/decw_cookbook (Maybe this could come in handy.)

17 years, 11 months

duplicate ebay search result email?

by legalize＠xmission.com

Is anyone else noticing that they get a lot of duplicate email from their ebay canned searches? They did something to their categories and search engine, apparently. I used to be able to search in a Commodore category under vintage computers, but that category appears to have disappeared. Since then, I have been getting a lot of duplicate email from my searches all containing the same items. -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

17 years, 11 months

TK50 with SCSI

by silvercreekvalley＠yahoo.com

Sorry if this has been asked before... I have a few spare TK50 drives, and wondered if these could be interfaced in some way to a regular Linux box. I know the PDP's use a special interface card, but I seem to recall it was some kind of SCSI variant. My reason for interfacing is that I have a few TK50's on PDP 11's and it would be useful to be able to transfer software. Ian. ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ

17 years, 11 months

S100 archive?

by kelly＠catcorner.org

> Does anyone recognize this archive as a mirror of other spots? > > http://maben.homeip.net:8217/static//S100/index.html > > It seems to be connected to majzel.com, registered to a > Agata Majzel, Flat 22, 27 Hereford Road, London W2 4TQ. > > - John Seems like a case of "My archive is bigger than your archive." I see stuff in here from a lot of different archives and personal web sites. Kelly No virus found in this outgoing message. Checked by AVG. Version: 7.5.519 / Virus Database: 269.21.7/1331 - Release Date: 3/16/2008 10:34 AM

17 years, 11 months

WTB: Emulex MT-02 controller

by cclist＠sydex.com

I've got a bunch of Tandberg QIC-02 interface drives here and would like to box one up as a SCSI unit. The only QIC02-to-SCSI controller that I'm aware of was the Emulex MT-02 used on early Sun workstations, so I'd like to see if anyone has one that they'd like to be rid of. Drop me an email if you've got a candidate. Thanks, Chuck

17 years, 11 months

are there any 68000 multi-cpu systems out there?

by trag＠io.com

>Date: Fri, 18 Apr 2008 19:12:41 -0400 >From: Ray Arachelian <ray at arachelian.com> >Subject: are there any 68000 multi-cpu systems out there? >Just out of curiosity, were there any machines out there that were built >from multiple MC68000's CPU's? There was the MassComp from Massachusets Computer, IIRC. However, it wasn't exactly a multi-CPU system. It used one 68000 for processing and another one to handle the very fancy (at the time) color graphics system. It ran some flavor of Unix. I learned (taught myself) C on that machine. We had several of them at NASA JSC around 1984 - 1985. Jeff Walther

17 years, 12 months

About Intel386 Family System Builder User's Guide

by huxuelei630＠gmail.com

Dear sir, I am sorry to bother at this time. I have read about your arctile at http://www.classiccmp.org. I wonder whether you have the document Intel386 Family System Builder User's Guide? If you have, could you please send me a copy of it? I have been looking for the document for a long time. Thanks. Huxuelei

17 years, 12 months

Beginner's capacitor question

by trixter＠oldskool.org

I have a need to record the output of a (5150) speaker. Although I thought that I could just alligator-clip a positive lead to one speaker terminal and the negative to the case/ground, the output was decidedly "buzzy" (I assumed it was too "hot" and overmodulating). I routed it into a mixer and turned it down (speaker is 5v, not sure what line input is) but it still didn't sound right. I found some old directions on hooking up a PC speaker to a line input, and was confused by the use of a capacitor -- I would have thought that a resistor would have been more appropriate, to limit the signal perhaps? In any case, here are the instructions, followed by my question: Parts required: - 6' to 12' shielded cable with RCA plug (male) on one end - Two alligator clips - One 4.7 uf capacitor 1. Connect one alligator clip to the shielded portion of the cable. 2. Connect the (-) minus side of the capacitor to the center conductor of the cable and then connect the (+) side of the capacitor to the second alligator clip. 3. Attach the clip with the capacitor to one of the wires going to your computer's speaker. Attach the other clip to the metal case (ground) somewhere (such as a screw or bolt connection). 4. Connect the RCA plug to the auxiliary input on your stereo system or boom box. While I have read the wikipedia entry on capacitors, I'm missing something obvious. My question: Why the 4.7uf capacitor? Does it serve to limit the signal? Reduce it's voltage? (or increase it?) Filter the signal in some way? -- Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/ Help our electronic games project: http://www.mobygames.com/ Or check out some trippy MindCandy at http://www.mindcandydvd.com/ A child borne of the home computer wars: http://trixter.wordpress.com/

17 years, 12 months

Help with ICL power supply fault (Farnell SMPS) - now working

by john_a_s2004＠hotmail.com

Hi again, Thanks for the tis on SMPS faults, I have now got it up and running. The first fault was a failed Y suppresion capacitor on the input - this had split open with a 'pop', easy to spot and replace. Then the PSU gave 1.1V on its 5V output, this was because the output was not regulated and went over volts, which triggered an SCR on the 12V rail. I removed the SCR and thought it was faulty, but the replacement had exactly the same resistance (80 ohm from gate to cathode in either polarity) so I fitted it anyway. I checked the voltage at the opto isolator and saw it vary as a changing voltage was applied to the 5V output, so this looked good. I tried drawing a circuit diagram based on the layout, but found this very difficult. However, I found two bad soldering joints when tracing the circuit. These were both at points when a trace on top of the PCB met a component then carried on underneath the PCB - ie the circuit relied on the solder forming a joint both under and on top of the PCB. I then applied varying DC to the input (up to 110V, this is a 230V supply). At around 80V, the board made a loud whistling noise, and the 5V and 12V outputs came up. However, as the input voltage was varied the output varied in step. I then checked the quad comparator chip (CA338, equivalent to LM338) and decided it was faulty. This was soldered in so replacing it with a socket was a pain. Anyway, with a new chip fitted the PSU came up fine. I still don't understand the whole circuit, there were around 5 transistors in an ossicaltor circuit which I couldn't get to grips with. I found the following sites helpful: http://www.sencore.com/custsup/techtips.htm - I used the 'dynamic testing' approach, looking at the SU in blocks. http://www.datasheetarchive.com/ Once back in the machine everything seemed normal again. I dnt seem to have a boot disk, but that is another story! Thanks, John _________________________________________________________________ Get Hotmail on your mobile. Text MSN to 63463 now! http://mobile.uk.msn.com/pc/mail.aspx

17 years, 12 months

Paratronics Logic Analyzer

by jamesmavery＠mchsi.com

I need a copy of the paratronics PI-540 logic analyzer

17 years, 12 months

IBM-9000 Computer System

by billdeg＠degnanco.com

> >I'm trying to find one of these systems and so far I am having absolutely no >luck at all. >Aside from some info and a few photos on the Old-Computers.com website I >can't find anything else relavent to this system and so far I can't find >anyone who has even heard of the things let alone seen one. Has anyone here >ever seen or used one and does anyone here even own one? I want to use one >to replace my unreliable VT510 serial terminal as well as try out the >IEEE-488 port. > >Oh yeah, here is a link to that info on the system. >http://www.old-computers.com/museum/computer.asp?st=1 ><http://www.old-computers.com/museum/computer.asp?st=1&c=623> &c=623 > > >John. > John, I too have been looking for one of these. There is a detailed article about the 9000's in the special issue of Byte, BYTE Guide to the IBM PC, fall 1984. Page 219 there is an article titled "Number Crunching on IBM's New S9000. "IBM joins with MIT's National Magnet Lab to develop spectrometers for imaging systems" by David J States. I have this as one of my "10 Most Collectible Micro Sleepers" ... http://vintagecomputer.net/browse_thread_record.cfm?id=94&tid=1 ...which was my response to PC World's article titled "The Most Collectible PCs of All Time" If you find two, let me know! Bill

17 years, 12 months

IBM 3852 Color Printers

by mbbrutman-cctalk＠brutman.com

I have two of these - a Model 1 and a Model 2. I never used them - it's an interesting project, but I don't have the ability to clean and repair something as delicate as an inkjet nozzle. Does anybody have any interest in these? If so, email me off list. I'm in Rochester, MN (55902) - shipping will be pricey, as these units are heavy. Mike

17 years, 12 months

Monitors to go

by kenziem＠sympatico.ca

As part of Earth Day celebrations I have a chance to recycle stuff without the normal charges for monitors Sun M19P114 Sun CD1 version C Sun GDM 1604-15 HP 98754A Digital VRT19-ha Nec Multisync Jc1401P3A Unisys - was off of an ICON a bunch of other 12-14" PC/Apple monitors If anyone wants one of these first, let me know before Wednesday evening. They are located in Ottawa, but a few list members do make trips this way. Mike

17 years, 12 months

are there any 68000 multi-cpu systems out there?

by hardware＠ees1s0.engr.ccny.cuny.edu

My undergrad school had a Stardent with four 68k processors. It ran some sort of Unix. They used it for simulating nonlinear optics. I took posession of the manual before they discarded the whole system. Property accounting bureaucracy prevented me from keeping system hardware. -kurt

17 years, 12 months

Early spring cleaning...

by derschjo＠msu.edu

Hey all -- I'm trying to free up some space so I have some stuff I'm looking to give away. Local pickup in the Seattle area only, please. Computers: - Commodore PET 8032. Works, someone managed to do a bit of damage to the PCB when replacing a RAM chip or two. Seems to work fine. - Miscellaneous 386 & 486 laptops. Most with 4/8mb ram & hard disks, some missing AC adapters. If you're interested, I can provide more detail - HP 9000/236. W/monitor. Worked last time I powered it up. Missing the "S" key on the keyboard, otherwise in good shape. Terminals: - 2 TRS-80 DT-1 terminals. With dust covers! Powered up the last time I tried them over a year ago. - Wang 2256-C terminal. Heavy. Not sure it's an actual dumb terminal, I get the impression it goes with a word-processing system. As it is it powers up, displays a green screen, and beeps once. (CRT needs a tune-up) Monitors: - Gateway SVGA, 15". Trinitron, works well. - Mitsubishi Diamond Scan something-or-other. CGA/EGA, composite, TTL, etc. 12 or 13". Works, a bit scuffed. Misc: - IBM Microchannel Token Ring cards. Probably work, I don't have any token ring hardware to test with. Let me know if anything strikes your interest... Thanks, Josh

17 years, 12 months

VAXstation 3100 and DecWindows

by RodSmallwood＠mail.ediconsulting.co.uk

I have recently restored a VAXStation 3100. The 200Mb drive was replaced by a 1.05Gb (that's the biggest boot drive size) I made up a cable to connect a colour monitor to the 15Way plug on the 3100. Switch on and it ran the diagnostics and gave the familiar three chevron prompt. T 75 reformats the drive. (takes forever) I used the second drive position to connect a RRD-42 CD drive and booted >from my VAX -VMS hobbyists disk. I then loaded VAX-VMS 7.3. So far so good. It works just fine. Now for my ultimate goal; load and run DECWindows. I ran the install as per the manual (that's a book that tells you everything you don't need to know and nothing that you do). It completed. I then ran the IVP as per instructions. Its at this point that the book is a bit ambiguous. its not clear how to tell if the system is a work station or a server and how to start up DECWindows from a VMS $ prompt in either case. If anybody has installed and run DECWindows on a 3100 under VMS 7.3 I'd be very pleased hear how they did it from the point where DECWindows was installed. Rod Smallwood

17 years, 12 months

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