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

by pete＠dunnington.u-net.com

On Jan 26, 11:41, Teo Zenios wrote: > I have an old matrox Ultima + VLB card that has 2mb vram (consisting of 8 x KM428C25J-6 chips) and has 8 more sockets for 2mb more memory (the type where the chip pins are curled around and point to the bottom of the chip) If you really meant KM428C256 rather than KM428C25, I've found an SGI document that says a certain controller was implemented with the following VRAMs, so presumably they're equivalents or nearly so: Toshiba TC528257 Mitsubishi M5M482256 Hitachi HM538253 Micron MT42C8255 Fujitsu MB8128xx NEC uPD482234 TI TMX55160 Vitelec V53C851 Samsung KM428C256 -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

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deciphering memory chips

by pete＠dunnington.u-net.com

On Jan 26, 11:41, Teo Zenios wrote: > What's a good online resource to figure out what type of memory chips you have? Usually, Google. I didn't find any hits for KM428C25J-6 or KM428C25J or KM428C25 or ... but I did find some for KM428C256 (which makes more sense, actually). The other thing I use is a fairly large collection of data books. Never discard data books :-) And I just happen to have a Samsung 1994 Product Guide that lists the KM428C256. Being only a Product Guide, it doesn't give details, but it says its a 2Mbit device organised as 258K x 8, and there are several speed variants as well as a V256, and C257/V257. KM is Samsung. 4 means DRAM, 42 means VRAM. 8 means 8 bits wide. C means 5V CMOS, V means 3.3V CMOS. 256 is the density and organisation, in this case 256K Page Mode. 257 means "E/F" mode (I can't think what that stands for, off the top of my head). J means SOJ (P is DIP, Z is ZIP, T is TSOP). The -6 means 60ns (-7, -8, -10 are also common). > I have an old matrox Ultima + VLB card that has 2mb vram (consisting > of 8 x KM428C25J-6 chips) and has 8 more sockets for 2mb more memory As you probably know, VRAM is dual-ported RAM, so that the graphics display hardware can read it without interfering with writes from the graphics engine or CPU. This particular type is used in some old SGI video systems. > (the type where the chip pins are curled around and point to the > bottom of the chip) You mean like a PLCC but with pins on only two sides, sort of like a DIL chip? It's called SOJ, or more specifically, xx-SOJ-y00, where xx is the number of pins and y00 is the spacing between the two rows in 1000ths of an inch (so 300 means 0.3"). > Are these common chips? Most video cards I have seen either use dram or edo ram. I don't think so. But I'm not an expert on video cards. -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

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Machines Available in the UK

by arcarlini＠iee.org

Found in alt.sys.pdp11: A few pdp-11s with SCSI adapters seem to be available in South Wales. I assume there may be some magnetic media and perhaps documentation to go with them. Antonio -- --------------- Antonio Carlini arcarlini(a)iee.org -------- Original Message -------- Subject: Machines Available Date: Mon, 26 Jan 2004 15:17:52 +0000 From: apyule(a)apyule.demon.co.uk Reply-To: apyule(a)bRITcOMPsOC.org.uk Newsgroups: alt.sys.pdp11 I am retiring in the near future and will be scrapping the following. PDP 11/44 with Emulex UC18 SCSI controller and discs, two Magnetic tape controllers and drives, Ethernet controller, two RL02 controller and drives, Terminal controllers. A number of spare boards. This machine is in working order. In fact I have been running it for a few hours a day recently to erase magnetic tapes and discs. PDP 11/73 with Emulex UC07 SCSI controller and disc, magnetic tape controller and Ethernet controller. This does not boot at the moment. I am not sure of the problem. PDP 11/23 (just processor and memory). This has not been powered up for a few years. MicroVax 2000 with extra disc drive and non working TK50 This machine is in working order. MicroVax II This machine was my partner's old machine. He retired three years ago and the machine has not been powered up since then. The above are all in the South Wales (UK) area near Cardiff. Items will need to be collected. I do not want any money for complete machines. If you are interested in having any of the above then please send me an email to the address given in the signature. Note that, due to the amount of spam I receive, I will not receive replies made to the demon address. Please respond before 2nd February. -- Tony Yule e-mail: apyule(a)bcs.org.uk God made the integers, man made the rest. (Leopold Kronecker) -- --------------- Antonio Carlini arcarlini(a)iee.org

22 years, 7 months

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Need something shipped from Boonton, NJ

by vcf＠siconic.com

I need something to be crated and shipped from Boonton, New Jersey. I'd like to hire some willing (or not) person to get the materials needed from the local hardware store and crate the item up. I figure it'll take around two hours. I need it done ASAP. If you're interested, please contact me directly. Thanks! -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

22 years, 7 months

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Mitac LIC-2001A Little Intelligent Computer

by vcf＠siconic.com

It's rare that I find a unique and interesting computer these days. This Mitac LIC-2001A Little Intelligent Computer is one such. Apparently, it was marketed in Japan because it has the Katakana (I think) character set painted onto the keycap fronts, but otherwise is a standard QWERTY keyboard layout. The back connectors include: 1) Power 2) Joystick (a 16-pin DIP socket mounted on its side!) 3) Tape In 4) Tape Out 5) TV (the jack of an RF modulator) 6) Expansion 7) Drive 1 8) Drive 2 9) Printer 10) Monitor (RCA type jack) 11) 80 Column (RCA type jack) Now, as I typed this, I started to sense something familiar, especially when I took into account the pin count on the disk drive connectors, and especially with the joystick port. I do believe this is an Apple ][+ clone. I opened it up and it has a 6502 and a Z80 onboard, with three ROMs and lots of RAM chips, sort of like many ][+ clones I've seen (I have at least a couple or three other ][+ clones with 6502 and Z80 on-board). I just can't verify this by booting it up because it has a very funky power connector which requires an external power supply of some sort (which I didn't get with this). Anyone ever heard of this? The web turns up empty. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

22 years, 7 months

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Effect of COLD

by dwight.elvey＠amd.com

Hi Always wrap the item in some plastic wrap when bring it into a warmer environment. The condensation can do quite a bit of damage. You want it to come up to temperature before exposing it to the wetter warm air. Dwight >From: "Tom Jennings" <tomj(a)wps.com> > >One of the best things to do is also the easiest: move them inside and >leave them, untouched, in a dry place for 24 or more hours. > > > > >On Sun, 2004-01-25 at 13:32, David V. Corbin wrote: >> The largest problem will be condensation. If moisture accumulates, it fill >> mix with any contaminants to produce a nice conductive film which can >> destroy (short out) all of the electronics on power up. >> >> The second (and much easier to deal with) is mechanical tolerance issues. >> Things contract when they get cold and expand when warming up (we all know >> this). If the devices are turned on (especially older items) the effects can >> be significant enough that the mechanics will be out of tolerance and bind >> and possible bend or break. This is easily cured by NOT turning them on >> until they have completely reached room temperature. >> >> As I said, the moisture problem is much more severe. If the items are packed >> in SEALED packaged with a decent amount of Sodium Silicate (or other drying >> agent) this should not be much of a problem. But (unfortunatley) we usually >> dont pay this much attention when packing "average" gear for storage. >> >> One technique I have used successfully is to (at least partially) >> disassemble the device [covers off at a minimum] while it is still extremely >> cold. After my finger thaw out, I will then bring it in to an enclosed area >> that has almost no humidity (hot air heating, dehumidifier, chemical water >> absorbers) and let it warm up in there. This will usually eliminate the >> formation of and condensate. >> >> >> Hope this helps. >> >> David. >> >> >> -----Original Message----- >> From: cctalk-bounces(a)classiccmp.org >> [mailto:cctalk-bounces@classiccmp.org]On Behalf Of Mike >> Sent: Sunday, January 25, 2004 4:03 PM >> To: cctalk(a)classiccmp.org >> Subject: Effect of COLD >> >> >> >> Is there any problem with data stored in a garage when the temperature drops >> to -20? I just found out where my moved a bunch of my machines (Cromemco, >> nabu, pets, Tandy's). >> >> Any precautions to take when moving them back indoors? >> >> Mike >> >> -- >> Ottawa, Canada >> >> Collector of vintage computers >> http://www.ncf.ca/~ba600 >

22 years, 7 months

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Water damaged computer books available

by dwight.elvey＠amd.com

Hi To save these, first freeze them to stop damage. Find some palce that does freeze drying. Dwight >From: "Boris Gimbarzevsky" <borisg(a)unixg.ubc.ca> > >Recently I had a flood in a storage room and a number of computer books >unfortunately got soaked. They are drying, but as some of them are >starting to grow rather colorfull fungi, and I've been told they have to >go. In the interests of maintaining domestic tranquility, the following >material is available to whoever wants to pay me to ship it to your address >(they will be dry when shipped): > PDP-8/L handbook > Laboratory computer handbook (on programming the PDP-12) > Complete copy of Inside MacIntosh manuals. > Megamax C manual for MacIntosh (I don't know where the disks are) > Byte Magazines from 1988 and thereabouts (when Byte was worth reading). > >If anyone is interested, contact me off list at: >borisg at unixg dot ubc dot ca and use the string "Aaardvark" in the >subject line to get past my spam filter. >These materials are going into the garbage in 4 weeks if there is no interest. > >Boris Gimbarzevsky > > >

22 years, 7 months

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Want to trade: WD ESDI board for Adaptec MFM

by kyrrin＠bluefeathertech.com

I have a Western Digital WD1007A 10MHz ESDI disk controller that I'd like to trade for an Adaptec ACB-2370 MFM controller. The thing came out of a working system, so I have no reason to believe it's anything other than usable. Anyone help on this? Thanks much. -=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner & Head Hardware Heavy, Blue Feather Technologies -- http://www.bluefeathertech.com kyrrin (at) bluefeathertech do/t c=o=m "If Salvador Dali had owned a computer, would it have been equipped with surreal ports?"

22 years, 7 months

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Fw: Estimated Price Of A "Classic" PDP-8?

by wmaddox＠pacbell.net

> The big issue isn't going to be getting paid, but finding a > replacement at any price. At the time of the last e-mail I exchanged with David, he was hoping that a restoration was possible. He wasn't sure of the exact extent of the damage, but seemed to think that the power supply, the front panel glass, and the plexiglass covers had taken the worst of of it. Since the minimum restoration effort would require one-off fabrication of the covers and panel glass, this would not be cheap. The process that Bob Armstrong used for the SBC6120 front panel would produce a very nice replacement, though it be plastic. Doing the work as an insurance settlement would probably require that it be contracted to a professional who could provide a quotation. Honestly, I have no knowledge of anyone who works professionally on stuff quite this old! There are apparently a few caches of flip-chips from that era around, though getting a collector to part with some spares could be expensive as well. In any case, that was David's thinking moreso than reaching a cash-for-scrap settlement. --Bill

22 years, 7 months

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Otrona Attache Schematics

by patrick＠evocative.com

JC, I've got 'em if you haven't already gotten them from someone else. Let me know. Best, Patrick -----Original Message----- From: cctalk-bounces(a)classiccmp.org [mailto:cctalk-bounces@classiccmp.org]On Behalf Of J.C. Wren Sent: Sunday, January 25, 2004 7:52 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Otrona Attache Schematics Does anyone have scans of the schematics for the Attache, particularly as it relates to the keyboard? I know I paper schematics in my warehouse, somewhere, but I can't seem to turn them up. --jc

22 years, 7 months

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Voltage & Current..

by dvcorbin＠optonline.net

>Bwahahaha, I've written 10 replies, but canceled them all, because I can't >teach a house >plant calculus. You Win. > On the other hand, I do keep tring to teach some of my outdoor plants geometery... Seriously the TOTAL lack of regulation on "WallWarts" is quite common. I am currently (preofessionally) developing a product which normally operates off of AC power (via a wallwart), but needs to remort low AC conditions and fall back to battery. The load on this device is VERY dynamic ranging from under 10mA to over 850mA depending on what it is doing. The voltage fluctuations out of the wall wart (which is rated as 11.8V @ 1A) will rise as high as 17V when under a minimal load. Since the device is intended to have a very low production cost, they really cut some regulation requirements on the board as well, since the components WILL tolerate this range of voltages. Unfortunately, the side effect is that the voltage variation based on load is significantly greater than the voltage variation based on fluctuations in the AC (eg during a brown out). This has required the development of software that is constantly monitoriing the "active" state of many of the devices to "calculate" the current load, and then going through a transform to estimate the RAW AC that is providing power to the wart. DAvid.

22 years, 7 months

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New Classic Finds and etc. (Long)

by pete＠dunnington.u-net.com

On Jan 25, 21:15, Lyos Norezel wrote: > Doc... this is a BAD idea... I've fried numerous devices by using the wrong power rating... even if it was only 1mA off. The voltage almost never matters... as long as the power is correct. Hope this gets to u before you fry your machine. > Lyos Gemini Norezel That's exactly WRONG! It's the voltage (and polarity) that matters, and the power (or current) doesn't, so long as it's "enough". What may sometimes be confusing is that the voltage produced by small power supplies often drops dramatically under load, and that's probably all that's saved our friend above from some disasters. > Doc Shipley <doc(a)mdrconsult.com> wrote: > > Funny coincidence, there. I just hacked a Sprint CAD-1000 AC adapter > onto a JetDirect Ex+ last night. The receptacle of the JD is odd, so I > had to pull the board and solder the adapter direct. Other than that, > it's the right voltage, and a little over-amped (1A vs the JD's rated > 800mA). -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

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PDP Manual on eBay

by pete＠dunnington.u-net.com

On Jan 25, 18:56, David V. Corbin wrote: > Actually that (I am pretty sure) is a version that focuses mainly on the > PDP-8/a which was microprocessor (rather than discrete component) based. > > Earlier editions (which had more information on Flip-Chip based designs),are > much more useful to those intersted in older PDP-8's (/I /E /L /M /S). Nope, I have a copy of that handbook, and it is definitely the one for the PDP-8/E (and 8/F and 8/M), not the 8/A (which followed). And as has already been pointed out, those machines are all TTL. It was the VT/780 and DECmates that used microprocessors. -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

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DECnet/E and DECnet-Plus

by bqt＠update.uu.se

On Sun, 25 Jan 2004 "Antonio Carlini" <arcarlini(a)iee.org> wrote: [...] > If you still see no activity, perhaps there is something that sends > the RSTS system off to the wrong place (after all, it said that the > incoming area 60 connection was from area 1). Maybe RSTS does not > implement the area stuff properly (any chance it might be Phase III?) > If you can persuade your hub/switch to monitor traffic connected > to the RSTS box, see if you can do an ethereal trace and decode > the AA-00-04-00 address the RSTS box sends traffic to. Badabing! I just remembered something. Zane, what version of RSTS/E are you running? RSTS/E DECnet was phase III until rather recently. That means some limitations... Phase III only have one area, and can only address node numbers < 256 on that area. This could *also* be the problem. Johnny Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt(a)update.uu.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

22 years, 7 months

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DECnet/E and DECnet-Plus

by bqt＠update.uu.se

On Sun, 25 Jan 2004 "Zane H. Healy" <healyzh(a)aracnet.com> wrote: > >I have gotten a lot of DECnet-IV systems talking to DECnet-Plus. What you'll > >need to do is register the DECnet-IV systems and then flush the naming cache. > > I've done this with RSX-11M and VAX/VMS without any problem, it's DECnet/E that seems to be the problem. I don't know if I've failed to set something up correctly on the RSTS/E side, or what. > > >After that, you should be able to connect to the Phase-IV system. > > Directory Service: Local name file > > Node name: LOCAL:.rstse > Phase IV synonym: RSTSE > > Address tower protocol and selector values: > Session: DNA_SessionControlV2 (SC2) > 00 13 > Transport: DNA_NSP (NSP) > (no selector value) > Routing: DNA_OSInetwork (CLNS) > 49::00-3C:AA-00-04-00-97-F2:20 (60.663) > > > Number of nodes reported on: 1 > > $ set host rstse > %SYSTEM-F-NOSUCHOBJ, network object is unknown at remote node > $ > > On the RSTS/E system console, I get the following: > > Event type 34.1, Object spawn failure > Occurred 10-Jan-17 17:40:49.5 on node 60.663 (RSTSE) > Reason: Unknown Object identification > Source node = 1.652 > Source process = 0 0 0 HEALYZH > Destination Process = 42 > > There are a couple of odd things about this error, one is that "SHOW > DATE" on the RSTS/E system shows 24-JAN-04 05:40 PM, so it looks like > DECnet/E has a Y2k problem. The other is that the source node is > 60.652, not 1.652 like the error message states. > > The Y2k error shouldn't be a problem, as my RSX-11M system works with > the wrong date. > > On a positive note, I finally got things setup so I can connect to the > RSTS/E system via LAT from the VMS system :^) A few things that might help: Please tell the results of the following on the RSTS/E system. > SHOW KNOWN OBJECTS > SHOW EXEC CHARA (That's in NCP on atleast RSX and VMS phase IV) Johnny Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt(a)update.uu.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

22 years, 7 months

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PDP Manual on eBay

by bill＠timeguy.com

FYI - looks like a nice book. Tempted to bid on it myself, but I don't have a PDP. Thought someone else might be interested. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3581863201&category=378

22 years, 7 months

5
5
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8 inch drives

by bitwisejones＠yahoo.com

Do you have any more 8 inch drives or know where I can get some? Thanks

22 years, 7 months

3
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Water damaged computer books available

by borisg＠unixg.ubc.ca

Recently I had a flood in a storage room and a number of computer books unfortunately got soaked. They are drying, but as some of them are starting to grow rather colorfull fungi, and I've been told they have to go. In the interests of maintaining domestic tranquility, the following material is available to whoever wants to pay me to ship it to your address (they will be dry when shipped): PDP-8/L handbook Laboratory computer handbook (on programming the PDP-12) Complete copy of Inside MacIntosh manuals. Megamax C manual for MacIntosh (I don't know where the disks are) Byte Magazines from 1988 and thereabouts (when Byte was worth reading). If anyone is interested, contact me off list at: borisg at unixg dot ubc dot ca and use the string "Aaardvark" in the subject line to get past my spam filter. These materials are going into the garbage in 4 weeks if there is no interest. Boris Gimbarzevsky

22 years, 7 months

1
0
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Effect of COLD

by kenziem＠sympatico.ca

Is there any problem with data stored in a garage when the temperature drops to -20? I just found out where my moved a bunch of my machines (Cromemco, nabu, pets, Tandy's). Any precautions to take when moving them back indoors? Mike -- Ottawa, Canada Collector of vintage computers http://www.ncf.ca/~ba600

22 years, 7 months

7
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RSX-11M

by d_cymbal＠hotmail.com

I came into a big load of 5.25" floppies today. Almost all are Apple related, but there are 2 boxes labeled "Digital". The only disk in these boxes that are labled says: RSX Mini-SYS V4.6 RSX-11M V4.6 03/23/92 I thought that looked interesting. Is there any sw that can read these under Win32 or Linux? I don't have any DEC hw but was interested to see if most of these disks are blank or if they might have anything of interest on them. dc

22 years, 7 months

2
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more vintage PC junk available free (some good!)

by cb＠mythtech.net

>> Complete Epson Equity I+ system, monitor, keyboard, system unit. All epson >> brand original set. Haven't opened it up but I suspect it's an 8080 or such, >> 360K floppy. Cute stylish setup. > >I believe that it is a DOS machine - possibly 286. I had an Equity II and it was an 8088 IIRC, so I would think the Equity I was probably an 8086, with maybe I+ being an 8088 (or maybe still an 8086). I can't confirm specs on the Equity II anymore as I sold it to someone on this list long ago (but I know it was either an 8088 or an 8086) -chris <http://www.mythtech.net>

22 years, 7 months

1
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Otrona Attache Schematics

by jcwren＠jcwren.com

Does anyone have scans of the schematics for the Attache, particularly as it relates to the keyboard? I know I paper schematics in my warehouse, somewhere, but I can't seem to turn them up. --jc

22 years, 7 months

1
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FW: HP2000/Access - benchmarks

by MGemeny＠pgcps.org

> -----Original Message----- > From: Mike Gemeny > Sent: Tuesday, January 20, 2004 9:14 PM > To: cctalk(a)classiccmp.org > Subject: HP2000/Access - benchmarks > > Jay wrote, > >BTEST ran in 1 Min 37.5 sec > >FPTS9 ran in 1 Min 23.1 sec > > > >Main CPU is a 2100A w/32K core. > > Thanks very much! This will help us to know if we are running faster or > slower then a real system under simulation on various hardware and OS platforms. > > >I'm wondering how they got the timings listed in the source comments? > > I added the comments to paraphrase the surrounding text in the "E" IMS PDF. > I too wonder how they got the numbers, but I didn't want to make any substantive > changes to the code. > > >The difference wasn't HUGE, > >but it was pretty noticeable. I suspect the 21MX-E would be even more so, and > >plus you have the option of several different types & speeds of memory. > >Hopefully we can find out! > > I hope so too. Not many systems were 21MX-E, but as I recall, GMU was and it was reported that it was quite noticeably faster. > > >{my emulator} emulates not just a CPU, but a whole > >computer room full of separate (or connected) HP systems, printers, etc. > > Just for the record SIMH does too, it now has all of the peripherals required to run Access. > You should take it for a spin, just explode the ZIP on a Windoz box and run Access.bat and you should get > the "MAG TAPE SELECT CODE?" questions. (Its 16 for the zip) > The disk images in the ZIP are pre-loaded with a system, just select the 2883 loader > and answer the questions in the dialog to do a disk boot and your up. You can telnet to your box and log in. > It's a good quick way to take "E" or "F" for a spin too; we have separate ZIPs for each. > > >> How much disk are you running? > > My recollection is that the 7900 is 2.5 Meg words or 5 Meg bytes, and that the 7905 is 7.5 Meg words or 15 Meg bytes, > feel free to offer information to the contrary. > > As for the real equipment you may have surplus, count me in! > I have 2 racks, several tape drives, a paper tape reader, and an MX that I have not powered up. > I also have the hard to find stuff like micro-code, MUX, interconnect kit, bootstrap tapes and MCP tapes. > I would rather have the racks with the step, 2100 CPUs, and a couple of 7900s, but beggars can't be choosers. > I would not turn down a 7906 but I would have to find a controller. > I would also need to find tape controllers and some of the cables. > > Keep us posted, > Mike. > > >

22 years, 7 months

2
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FW: HP2000/Access - benchmarks

by john3000＠cox.net

At 2004-01-23 10:32 AM, Mike Gemeny wrote: {snip} > > I hope so too. Not many systems were 21MX-E, but as I recall, GMU was > and it was reported that it was quite noticeably faster. Yes, GMU had an HP 2000 ACCESS system with 21MX-E processors, 7920 disc (50 MB of which the ACCESS operating system could only address the first 33 MB), 32K WORDS of RAM in each processor, 32 MUX ports, SYNC card (for RJE), 7970 1600 BPI tape, and an HP 2640B terminal as the console. I was the system manager for the GMU HP 2000 from its delivery in August, 1978 until I left GMU in January, 1984. At the time we received the system (August, 1978), we were told that our system was one of the last two off the assembly line - how accurate that claim was, I don't know. At one time GMU had the HP 2000 ACCESS source code, operating system manuals, patching instructions, etc. I used the source code and manuals to patch the ACCESS OS we used. The patch made using the HP 2640B terminal as the system console a much more pleasant experience. Basically, it changed the normal console backspace from a backspace and underscore to a backspace and a bell (a one byte patch). At various times we had to limp along with a 2100 processor while repairs were made to our 21MX-E processor. Many years have gone by, but I remember the 2100 as being VERY much slower. Was the 21MX-E twice as fast? Three times as fast? I can't say - too many years have gone by. {snip} > > >> How much disk are you running? > > > > My recollection is that the 7900 is 2.5 Meg words or 5 Meg bytes, and > that the 7905 is 7.5 Meg words or 15 Meg bytes, > > feel free to offer information to the contrary. I believe that is correct. GMU had a single 7920 50 Mb disc, but HP custom formatted it for use by the HP 2000 ACCESS. If I remember correctly, a disc diagnostic/utility program (which I think was called SLUTH) was used to configure the drive. I'm guessing that the drive was formatted as having a total of 65,535 sectors, which is approximately 33 Mb. Question: How are the 7905 and 7906 discs you are using formatted? {snip} > > Mike. > > > > > > John *** When replying to this message, please do not delete these *** *** signature lines. Otakon Katsucon HP3000-L @classiccmp.org ***

22 years, 7 months

3
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Picked up a B+K Precision 1466 Oscilloscope

by jrkeys＠concentric.net

Got the scope for $3 and it powers on ok but has not been tested yet. Will now have to find a manual for it.

22 years, 7 months

1
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OK, who needs a DEC SF200

by tponsford＠theriver.com

Hi All, I checked out the SF200 this morning. I was pulled out of service in working condition. I contains three (3) of the "cannisters" RF72's? that contain 4 DSSI disks each. I believe the each disk had a 1.2-2GB for a total capacity of 14-24GB. It looked like all the cabling was complete in the back. It also contained a power conditioning unit. Someone has already looked into the shipping for this, and it appears it will cost about $300 to ship it back east from Tucson, Az. If I can get the unit for "real cheap" I'll get it, and keep it for someone who might want to trade some stuff for it. Cheers Tom Ponsford > Tom Ponsford wrote: > >> It's a beast, but unfortunatly no Vax to go with it :-( Still if you >> want lots o' DSSI storage? >> >> It will probably go "really cheap", unless one of the usual bidders >> already has a buyer for it. >> >> I'll see it first-hand on Monday and will know what is really in it. >> It goes to auction on Tuesday. >> >> pictures: >> >> http://w3.arizona.edu/~pacs/surplus/public/sale/P0127047.jpg >> http://w3.arizona.edu/~pacs/surplus/public/sale/P0127042.jpg >> >> Tom >> _______________________________________________ >> rescue list - http://www.sunhelp.org/mailman/listinfo/rescue >> >

22 years, 7 months

1
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more vintage PC junk available free (some good!)

by jwest＠classiccmp.org

Some of this is total junk, some is "good stuff". Here's the list: Narrow Carriage Dot Matrix printers (all believed working, good shape) Star NX-2430 Multifont TI Omni 800 855 w/font cartridge Star NX-1001 Multifont Epson LX-850 Honeywell Bull Miniature inkjet - about 2 inches tall, 8 inches wide, 5 inches deep. Centronics IF, Cute! Viva Modem 24 (little tower, no PS) Dell Monitor, 14", model Vi1439U Packard Bell Monitor, model PB8538SVGA Complete Epson Equity I+ system, monitor, keyboard, system unit. All epson brand original set. Haven't opened it up but I suspect it's an 8080 or such, 360K floppy. Cute stylish setup. Misc PC cards: 16 bit ISA multi I/O card (2 serial, 1 parallel, 1 joystick, floppy, and ide) 16 bit ISA linksys etherlan16 network card 16 bit ISA VGA (JAX TVGA8900) 8 bit ISA Sound Magic (several creative labs chips) Last but not least... can't believe I'm going to let this one go, but it needs a better home. I have a Corona Data Systems PPC400-12. Probably one of the first portable PC's. Complete setup with keyboard inside the cover, a manual or two. Can someone make a trade offer for this one? I'd like to get something for it. Other than the PPC, all the above is available for cost of shipping rounded up to the nearest dollar. For the PPC, make offer - mainly I just want it to go to a good home. Anything there's no takers for within a day or two goes to the dumpster (except the PPC I'd hold on to). Regards, Jay West

22 years, 7 months

2
1
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Cromemco SCC Eproms/images needed

by rmu_scada＠yahoo.com

I'm still looking for the monitor/3k basic interpreter eproms for my Cromemco SCC s100 card. Actually, all I need is the firmware dumps. I'll burn my own. Also, in an earlier post I stated they were part # MCB-416. I should have said MCB-216. According to the manual they are individually numbered MCB-216-0 and MCB-216-1. Thanks, Joe __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free web site building tool. Try it! http://webhosting.yahoo.com/ps/sb/

22 years, 7 months

1
0
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ISO Tek 4052A service manual

by aek＠spies.com

Does anyone one that I could borrow? FWIW, I've dumped the firmware and microcode roms this morning www.spies.com/aek/Tek4052A_fw.zip I suspect a power supply problem, but it is quite different >from the 4051 that I do have docs for (and have on line on bitsavers) The main boards are probably the same as the 4054.

22 years, 7 months

1
0
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OT: Looking for a truly free hit counter

by jrkeys＠concentric.net

Does anyone know where to get code for a truly free hit counter for your website? All the ones I have found want to put ads on your page in return for the code. Thanks

22 years, 7 months

4
3
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MUNIAC

by tomj＠wps.com

700 tubes! That's daunting. It took whole departments a year to assemble machines like that, and with budgets. (Though they didnt have gigasample/100MHz software scopes :-) I'm awed that he got that much together. I figure I can get 2500 instructions/second for 70 tubes, or 100 active elements, not including the store (aka memory) which is just N x $ (eg. how much memory can you afford?). Lots of silicon diodes (not cheating at all, very 1958). 2500 not very good instructions, I might add.

22 years, 7 months

2
2
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4 PDP-11's found (plus RK05's) and VAX 7000 !

by waltje＠pdp11.nl

Hi all, The local scrap dealer has 4 11/34's available (two regular ones, and two in Tektronix OEM mode, meaning, relabeled) which have a bunch (I believe I saw 4) RK05-J's and a magtape unit that seems to be a generic magtape (TU77?). He also has a VAX 7000 there- given its size I didnt look at that in any detail.. too big for me. What would those PDPs be valued for? He'll scrap em for gold, oviously. I dont need all the Tek programmable power supplies and (readback) digital voltage meters crap, nor do I want or need the two or three Tek color terminals (the greenish-silk screen ones). Anyone want any of the above? I would like an 11/34 with dual RK05 out of it, and would hate to see it go to the melter.. Pse reply offlist for quickest response :) (they're going to the melter tomorrow night..) --f -- Fred N. van Kempen, DEC (Digital Equipment Corporation) Collector/Archivist Visit the VAXlab Project at http://VAXlab.pdp11.nl/ Visit the Archives at http://www.pdp11.nl/ Email: waltje(a)pdp11.nl BUSSUM, THE NETHERLANDS / Mountain View, CA, USA

22 years, 7 months

10
14
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Documents posted tonight plus other news

by rcini＠optonline.net

Hello all: Tonight I posted complete scans of the "KIM-1 User Notes" newsletter (issues 0 to 17) and AIMInteractive (issues 3-8), courtesy of Jack Rubin. Thank you Jack! Also, just a quick update on the status of the Altair32 project. I'm about 90% there on a "v2.6" release of the emulator. There have been quite a few changes, including some better graphics for the cassette/paper tape and line printer, support for the 88ACR and 88-LPC/LPR devices, plus a host of other changes that improve code execution speed. With the help of another contributor, the source code is now compatible with the LCC-Win32 compiler. Version 2.6 should be released by mid-March I would think. Enjoy the KIM and AIM stuff. Rich Rich Cini Collector of classic computers Build Master for the Altair32 Emulation Project Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ /************************************************************/

22 years, 7 months

1
0
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IEM 4430 Rev C HP-IB Tape Drive

by vp＠mcs.drexel.edu

Hi, I came across the IEM 4430 4mm tape drive. This contains an HP DAT 1Gbyte SCSI tape drive and a conversion board that includes the external HP-IB connector, the internal SCSI connector for the tape drive and a connector for the operator panel. The main PCB has 8 dip switches accessible from the back of the machine and a couple of jumpers all over the place. I figured out that three of the DIP switches are for HP-IB addressing, but I wonder whether anybody has any info on that tape drive. Specifically I wonder whether some switch combination can make the 4430 pretend to be some HP drive, so that it can be recognized by software expecting a QIC-style tape drive. Thanks **vp

22 years, 7 months

1
0
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Two HP calculators at Goodwill Today

by jrkeys＠concentric.net

They had a HP 32sII and a HP 27S at the Goodwill today for $24.99 each. I tried to talk the manager down on the price but no luck since this was the first day out for both. So I got the 32 and left the 27. Now I'm downloading the 396 page manual for it from hp's website.

22 years, 7 months

2
1
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ASR-33 problem

by vrs＠msn.com

Hi, My ASR-33 has recently started to apply 20V pulses to my TX+ line. I suspect something has gone south on the selector magnet driver board. Any ideas on where to start looking? Thanks! Vince

22 years, 7 months

2
6
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Damn battery rot

by john_a_s2004＠hotmail.com

Hi, I was sorting through my stack of IBM XTs & ATs when I saw what I thought was condensation on the case of an AT. Strange I thought I hope that's not rain water (being indoors!) I opened up the case and was dismayed to fine the remains of a back-up battery and a large puddle of horrid looking gunk eating a hole through the steel case. Turned out the previous owner had put a cheap back-up alkaline battery in place of an expensive lithium battery, although the sealed plastic box they came in made no mention of possible leakage. Anyway I cleaned it all out and made a mental note to check my BBC Master's didn't have any batteries left in them either. Just a word to the wise, I'm sure most of you are thinking 'been there, done that'! Regards, John

22 years, 7 months

1
0
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Google died...

by vcf＠siconic.com

This is creepy. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

22 years, 7 months

8
11
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www.emulation.net seems to be gone

by ron.hudson＠sbcglobal.net

They had emulations of several classic computers that ran under mac os, on powerPCz I can't seem to get them, can anyone?

22 years, 7 months

4
3
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Mouse for a DEC ??

by r.lasbury＠ntlworld.com

Peter Thanks for the kind offer of the DEC mouse. Are you local to the UK? Robin _____ << ella for Spam Control >> has removed 1533 Spam messages and set aside 222 Newsletters for me You can use it too - and it's FREE! www.ellaforspam.com

22 years, 7 months

1
0
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NIST CD/DVD preservation guidelines

by classiccmp＠crash.com

Sorry if this is a repeat; I just noticed it on slashdot, it's been out since late October. A quick search through my folder of classiccmp messages came up empty, so... NIST has issued a report titled "Care and Handling Guide for the Preservation of CDs and DVDs" from it's Digital Preservation Program. The one page summary covers what you already knew about proper handling and storage. Note that they recommend gold-based reflective layer discs for archival storage. http://www.itl.nist.gov/div895/carefordisc/index.html Share and Enjoy, --Steve.

22 years, 7 months

1
0
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help

by steve＠lhi.net

I'm looking for a game I once had on an old ibm personal computer, it was vary simple, the carecter you controled looked kind of like a triangle, or an upsidedown boot. the level was an open room with a stair case of some sort leading up to a doorway near the sealing. I cant remamber much, it was years ago. But as far as i'm concerned, it was the best game ever. And i wish i could get it back, I'm fixing an old ibm to run it, but cant find the game anyware. If you have any information on this, or someone i may turn to for info, that would be great. Thanks steve(a)lhi.net

22 years, 7 months

2
1
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The PDP-8, PDP-11, VT100 and Tek rescue

by waltje＠pdp11.nl

Hi all ! Hmm. Although I did find that great, pristine PDP-8 at that scrapper, and *did* manage to get it out of the melting queue, it's not all safe yet... As it turns out, this stuff is actually owned by someone else, who just stored it there. However, that person has not paid their storage bills (just over a year behind) *and* does not answer calls. This is why the scrapper eventually decided to move it into the melting queue, simply to recover cost of storage. That is how they make their money, so be it. Now.. I *did* spend a few hours today on tracking down that guy, and he is still alive. We're all going to work on getting that machine out of the danger zone, which is why I paid a large sum of money (one year of storage past due, and one year of storage as a bonus etc etc) to put a "hold" on it. Legally speaking, my attorrney tells me, the debt from that guy to the scrapper has now "moved' to me, so if he does not pay me, I can go and pick it up. I am sending to all on the list, simply because of the important- ness of the machine to us all, and so there are no misunderstandings on the matter. :) When I am back here in march, I will arrange for storage and a nice work area where all these will go. Until then, they are locked :P The same goes for the four PDP-11/34's: they are safe now, and, as above, locked until march when I'll clean em up, test them and call people to let them know their "order is ready" :) [yes, I eat at In-N-Out too often, I know..] Ohyeah. I *did* save the two VT100's (Jay got em, if anyone else wants one, let Jay know ;-) and tried to save the two Tek's, but I was too late for those.. they had just, er, died^H^H^H^Hmelted. :( So there :) If there is anyone in the Bay Area (er, within sane driving distance) who can spare an H960, or bumps into one, please let me know ! Cheers, Fred -- Fred N. van Kempen, DEC (Digital Equipment Corporation) Collector/Archivist Visit the VAXlab Project at http://VAXlab.pdp11.nl/ Visit the Archives at http://www.pdp11.nl/ Email: waltje(a)pdp11.nl BUSSUM, THE NETHERLANDS / Mountain View, CA, USA

22 years, 7 months

2
1
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The PDP-8, PDP-11, VT100 and Tek rescue

by msokolov＠ivan.Harhan.ORG

Fred N. van Kempen <waltje(a)pdp11.nl> wrote: > Ohyeah. I *did* save the two VT100's (Jay got em, if anyone else > wants one, let Jay know ;-) and tried to save the two Tek's, but I > was too late for those.. they had just, er, died^H^H^H^Hmelted. :( Can we get a posse out there to arrest that guy, give him a speedy and public trial, and take him to California gas chamber for the murder of classic computers? That's the same guy who just murdered a VAX 7000, right? MS

22 years, 7 months

4
4
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The PDP-8, PDP-11, VT100 and Tek rescue

by dvcorbin＠optonline.net

Fred, et.al. I was afraid of that ;) On a more serious note, there are a large number of collectors here. Many have different areas of interest. What might be VERY important to one, could merely be "interesting" to someone else. Recently I have been in contact with a number of local (Long Island, NY) firms that deal in older equipment. Most of them handle Telecom, PC's and maybe a few Sun's. I talked with owners/managers and left business cards (magnetic and stuck to various file cabinets etc in their offices!). I have also made phone calls and send both e-mail and snail mail to other possible sources. The more people who know that I am serious about this item, the better chance I have of obtaining one. Also I will pass on any information relating to items which I am not interested in (or simply unable to acquire). Since there is a fairly large contigent of people who are intersted in the PDP-8, any "open" post of "Hey I just found one who wants it..." will likely lead to rioting. It is my hope to get my interst well known so if anyone finds something (that they are not capable of taking), they can contact me. David V. Corbin Dynamic Concepts Sayville, New York 631-244-8487 -----Original Message----- From: Fred N. van Kempen [mailto:waltje@pdp11.nl] Sent: Friday, January 23, 2004 11:10 PM To: David V. Corbin Subject: RE: The PDP-8, PDP-11, VT100 and Tek rescue On Fri, 23 Jan 2004, David V. Corbin wrote: > ps: This goes for anyone who may come across PDP-8 and/or TU-56 material. The reference to the credit card was to Michael's beef re not saving the VAX 7000, my friend :) --f

22 years, 7 months

1
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OK, who needs a DEC SF200

by msokolov＠ivan.Harhan.ORG

On Thu, 22 Jan 2004, Tom Ponsford wrote: > It's a beast, but unfortunatly no Vax to go with it :-( Still if you > want lots o' DSSI storage? Exactly how much storage are we talking about? SF200 is the array carcass. What disks are in it? MS

22 years, 7 months

3
2
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old computer books

by tomj＠wps.com

I almost hate to post this, I don't know how well known it is, and I like to get first grabs... :-) www.powellsbooks.com, an incredibly great bookstore for any number of reasons, has had an Early Computing section (online) for years. I get a lot of stuff from them. Prices aren't bad. CP/M, Amiga, old old, etc. Selfishness aside, I think the Early sections would benefit from more traffic. Browse (left column): Computers -> Computers: Early. At the top "list all titles" etc. They buy too.

22 years, 7 months

1
0
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Corvus Omninet and Apple IIe - need docs

by aek＠spies.com

> I was given a device which was claimed to be a Mac Omninet adapter. > Which Mac model was this intended to work with? The CIII docs show it working with an SE. It connects to the serial port. Inside they're a corvus transporter with a serial interface. Version 2 of CIII supported HFS, so it would be System 4/5 timeframe.

22 years, 7 months

1
0
0 0

ASR-33 problem

by dwight.elvey＠amd.com

>From: vrs <vrs(a)msn.com> > >> > My ASR-33 has recently started to apply 20V pulses to my TX+ line. I >> >> By Tx+ do you mean the keyboard loop? In other words, is it Tx on the >> teletype or Tx on the computer? > >Sorry, I mean Tx on the computer. The 20V appears on the + side of the loop >going to the TTY's printer, whenever the printer is actually printing. The >computer doesn't like it much, either :-). > > Vince > 20V usually means that the loop is open someplace? It might even be the computers end. Dwight

22 years, 7 months

1
0
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Need NeXT cube install media

by vcf＠siconic.com

I need the NeXT cube install media for a friend who wants to re-load a NeXT cube. Where can this be gotten from? -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

22 years, 7 months

3
2
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William King?

by aek＠spies.com

Does anyone have a current email adr for him?

22 years, 7 months

1
0
0 0

power cord for 11/34?

by brad＠heeltoe.com

The end of the power cord is snipped off this 11/34a I have in front of me... It has a blue wire, a brown wire and a green striped wire. I'm assuming the green striped is ground. Brown hot and blue neutral? (I think this is a standard, but I shy away from voltages above 48vdc :-) -brad

22 years, 7 months

5
7
0 0

Emulators of Classic Computers

by aek＠spies.com

>If it uses standard chips (i.e. data sheets exist), then it can be >reverse-engineered! Not if the uCode proms have rotted.

22 years, 7 months

17
35
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OK, who needs a DEC SF200

by tponsford＠theriver.com

It's a beast, but unfortunatly no Vax to go with it :-( Still if you want lots o' DSSI storage? It will probably go "really cheap", unless one of the usual bidders already has a buyer for it. I'll see it first-hand on Monday and will know what is really in it. It goes to auction on Tuesday. pictures: http://w3.arizona.edu/~pacs/surplus/public/sale/P0127047.jpg http://w3.arizona.edu/~pacs/surplus/public/sale/P0127042.jpg Tom

22 years, 7 months

4
3
0 0

VAXstation sysgen question

by jpl15＠panix.com

I have ploughed a bit thru the voluminous online doc, and invoked SYSGEN and read thru it's help files.... but I still have no understanding of just how to make a Device known to VMS. Specifically, I want to make a 9trk tape machine (M4 Data = TE16 ?) available. Another listmember was kind enough to provide me with SCSI cables, since the M4 machine is SCSI. I tried: SYSGEN> AUTOCONFIGURE ALL/SELECT=(_list of tape dev names_) which did 'something' and returned to the SYSGEN> prompt - but attempts to ALLOC or MOUNT the dev return 'device unknown' errors, nor are the new devices list in SHOW DEV. So of course I'm (as usual) one or two GOTOs short of a Subroutine... ;} Cheers John

22 years, 7 months

2
3
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Corvus Omninet and Apple IIe - need software

by maya2blue＠juno.com

Steven and Al.... I need the corvus software for apple IIe's. I'll keep a lookout for the mac version as well. Harve Thorn On Fri, 23 Jan 2004 12:00:38 -0600 (CST) cctech-request(a)classiccmp.org writes: > > Message: 1 > Date: Fri, 23 Jan 2004 07:05:20 -0500 (EST) > From: "Steven N. Hirsch" <shirsch(a)adelphia.net> > Subject: Re: Corvus Omninet and Apple IIe - need docs > On Thu, 22 Jan 2004, Al Kossow wrote: > > If someone happens to have release 2.0 or later of the CIII > > software for the Mac, I could use a copy. It should be three > > floppies. > > I was given a device which was claimed to be a Mac Omninet adapter. > If > memory serves (and it's buried in the garage at the moment), it was > a > small "project" box with a DB-9 connector and Omninet mini-plug on > short > tails. Does this sound right? > > Which Mac model was this intended to work with? Which version of > MacOS? > And, lastly, does anyone have _any_ version of the support > software? > > Steve ________________________________________________________________ The best thing to hit the internet in years - Juno SpeedBand! Surf the web up to FIVE TIMES FASTER! Only $14.95/ month - visit www.juno.com to sign up today!

22 years, 7 months

2
1
0 0

Mouse for a DEC ??

by r.lasbury＠ntlworld.com

I have two DEC workstations a 3000 and a 5000 and a good working keyboard but no mouse. Has anyone any experience of making a PC mouse work on a DEC? Is this feasable or should I spend my time hunting down a genuine DEC mouse instead? All suggestions, help and advice gratefully received. Robin _____ << ella for Spam Control >> has removed 1499 Spam messages and set aside 221 Newsletters for me You can use it too - and it's FREE! www.ellaforspam.com

22 years, 7 months

2
1
0 0

Emulators of Classic Computers

by chrisc＠addpower.com

>Then it's high time somebody produced a _real_ computer kit. As in a pile >of standard logic chips (no microoprocessors, no programmed devices, no >FPGAs, although I will allow RAM :-)).... I would really, really like to see something like this...it'd help me getting started with learining electronics, which is something I've really wanted to do and not had any practical time to do.

22 years, 7 months

21
65
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Complete and assembled SBC6120 (PDP-8 clone) and front panel for sale on eBay

by bob＠jfcl.com

I'm selling off one of the SBC6120 prototypes from VCF 6.0 on eBay http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2782363270> &item=2782363270 (I decided that four prototypes was more than anybody could need :-) This is the one on the far right (sitting on the easel) in the picture http://www.vintage-computer.com/images/vcf6/sbc6120.jpg This unit includes the lights and switches front panel, black aluminum bezel for wall hanging, a 16Mb Compact Flash card for mass storage (that's the equivalent of eight RK05Js!) and a wall wart style power supply. It's all ready to plug in; all you need to add is a terminal. If you haven't heard of it, the SBC6120 is a fully functional PDP-8 clone built with contemporary (more or less!) electronics. The SBC6120 executes the PDP-8/E instruction set, includes a full 32K words of main memory and KM8E compatible memory management, has a KL8E compatible interface for an RS232 console terminal, can connect to any IDE/ATA disk drive, and best of all (as you can see from the pictures!) has a fully functional lights and switches front panel. The SBC6120 can run all standard DEC paper tape software, such as FOCAL-69, with no changes. OS/278, OS/78 and, yes - OS/8 V3D or V3S - can all be booted on the SBC6120 using an IDE disk drive as mass storage devices. Bob Armstrong

22 years, 7 months

2
1
0 0

Mobile computing lab

by cb＠mythtech.net

>Hand-cranked exterior window shades? Pfeh! You know, that is just what I was thinking... they put all this effort into it and then ruin the whole thing by using hand cranked window shades! >It looks like these folks are getting ready for Armegeddon in style. I think they watched "Stripes" too many times. -chris <http://www.mythtech.net>

22 years, 7 months

3
2
0 0

Everex 386 laptop available

by vcf＠siconic.com

Actually on-topic (scary!) Anyone need an old 386 laptop? See below. Reply-to: beenlostonce(a)yahoo.com -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ] ---------- Forwarded message ---------- Date: Fri, 23 Jan 2004 11:06:29 -0800 (PST) From: Tanya Deans <beenlostonce(a)yahoo.com> To: donate(a)vintage.org Subject: donation question I have an old Everex laptop. Don't know what model. Has sticker saying the processor is Intel 32-bit. I purchased it used in 1993 for school and since then it's just been sitting around the house. Is this something you'd be interested in or should I just trash it? Don't know if it's worth anything to anyone. Thanks. - Tanya Deans

22 years, 7 months

1
0
0 0

Mobile computing lab

by vcf＠siconic.com

This is kinda cool: http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=6728&item… -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

22 years, 7 months

5
6
0 0

shipping via truck? any advise/war-storie?

by brad＠heeltoe.com

In a fit of madness I bid on that 11/730 government auction. And, now it appears I've won. So, how to get a 72"x60"x48" 1000lbs pallet from PA to MA? I assume the sanest thing is to high a "logistics" firm to truck it to me. I have access to a loading dock and pallet jacks so I can receive it in a sane manner. I am curious if others have done this and if they have and "advice" (like, "next time take your medication before reading email!" :-) -brad

22 years, 7 months

3
2
0 0

Apple & Corvus - Al Kossow

by maya2blue＠juno.com

Hey Al... Way to go!! Many tks for the tip. Just what I needed! Thank you! I'll keep an eye out for the Mac disks. Harve Thorn Fayetteville, AR > Date: Thu, 22 Jan 2004 18:54:16 -0800 > From: Al Kossow <aek(a)spies.com> > Subject: Re: Corvus Omninet and Apple IIe - need docs > To: classiccmp(a)classiccmp.org > Message-ID: <200401230254.i0N2sGZ1014989(a)spies.com> > > > The Constellation III manuals for the Apple II and Mac > are now on line at www.bitsavers.org/pdf/corvus > > If someone happens to have release 2.0 or later of the CIII > software for the Mac, I could use a copy. It should be three > floppies. ________________________________________________________________ The best thing to hit the internet in years - Juno SpeedBand! Surf the web up to FIVE TIMES FASTER! Only $14.95/ month - visit www.juno.com to sign up today!

22 years, 7 months

1
0
0 0

Corvus Omninet and Apple IIe - need docs

by aek＠spies.com

The Constellation III manuals for the Apple II and Mac are now on line at www.bitsavers.org/pdf/corvus If someone happens to have release 2.0 or later of the CIII software for the Mac, I could use a copy. It should be three floppies.

22 years, 7 months

2
1
0 0

Mitac LIC-2001A Little Intelligent Computer

by pete＠dunnington.u-net.com

On Jan 22, 15:50, Vintage Computer Festival wrote: > On Thu, 22 Jan 2004, Pete Turnbull wrote: > > On Jan 22, 12:15, Doc Shipley wrote: > > > On Jan 22, 2004, at 11:54 AM, Vintage Computer Festival wrote: > > > > (I'm going to pick you guys off one at a time until I've got you > > > > all... ;) > > > > > > <cough>netcop<cough> > > > > Maybe we should all turn on our "Reply-To:" headers and see what > > happens. We could all set them to "vcf(a)siconic.com" so the results can > > be properly monitored ;-) > > Hey, that would be fun! Equally fun would be for me to modify my > .procmailrc to send any spam message I get to each individual Reply-To > addressed message I receive ;) Oh! I hadn't thought of that :-( -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

2
1
0 0

mac clone

by teoz＠neo.rr.com

Any idea what a Unitron mac512 clone from brazil would be worth these days? Someone in a mac forum I belong to is looking for one and they are pretty rare. http://www.lowendmac.com/clones/unitron.html

22 years, 7 months

2
1
0 0

brew-your-own-unibus boards?

by pete＠dunnington.u-net.com

On Jan 22, 23:21, Pete Turnbull wrote: > While I was looking up my NatSemi Interface databook, I notice it lists > the DS8640 as an exact replacement for an SP380 (quad 2-input NOR bus > receiver), and an 8T380 is the same thing. That should say "similar thing". I knew there was a difference between SP380 and N8T380, I just couldn't remember what -- as someone pointed out, the N8T380 has schmitt inputs. -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

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M7891 switch settings? (unibus)

by GOOI＠oce.nl

Correct. MM is for core, MS is for chips. I was too lazy to check what I was writing. I even have MM11-LP (96 kWords) in my 11/35. I passed the morse code exam last December, and since I had to choose a new call, the postfix PDP seemed a nice one. "PDP" in morse code is not the best choice, but I just could not resist. I am not active on HF, waiting until Spring to install a antenna (aerial). nice weekend all, - Henk > -----Original Message----- > From: Frank Arnold [mailto:fm.arnold@gmx.net] > Sent: donderdag 22 januari 2004 20:10 > To: cctech(a)classiccmp.org > Subject: RE: M7891 switch settings? (unibus) > > > >From: Gooijen H <GOOI(a)oce.nl> > >Subject: RE: M7891 switch settings? (unibus) > > > >I have scanned 11/34 field maintenance print sets. > >They are at http://www.mainecoon.com/classiccmp/ > >And if I am not mistaken the MOS memory is there too. > >AFAIK is MS11 correct, just the suffix letter makes > >all the difference (core, 11/44 MOS, etc.) > > MS11-xx is alway semiconductor memory of different capacities > and speed as specified by the last two caracters > (to the best of my knowledge...) > > MM11-xx are the true core memories with the ferrite cores. > (Wanna see a MM11-YP, 32k x 18 core-stack? Then bump the > cofee-machine) > > several years after Mos memory became available people were > still talking about core if they just meant the mainstorage > or R/W-Memory, regardless of the technology it was built with. > > > > > gd luck, > >- Henk, PA8PDP > ^^^ > Heh heh, on what frequency is it radiating? > Do you remember the little proggys that would make a pdp > produce sound on an AM-receiver not tuned to any station? > > >> -----Original Message----- > >> From: Brad Parker [mailto:brad@heeltoe.com] > >> Sent: donderdag 22 januari 2004 1:18 > >> To: arcarlini(a)iee.org; General Discussion: On-Topic and > >> Off-Topic Posts > >> Subject: Re: M7891 switch settings? (unibus) > >> > >> > >> "Antonio Carlini" wrote: > >> >> Does anyone have a manual for an M7891 (128kx18 MOS memory)? > >> > > >> >Is that an MS11 of some sort? > > if it is 128kx18, then it is a MS11-LD, and has an integrated parity > controller. I should have the maintenancemanual somwhere if > it of use to > anyone. I will sent a free copy to aomeone who likes to > convert it to .pdf > file to be put on-line. (Will have to dig it from the garage, however) > > Frank

22 years, 7 months

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Egregious VMS newbie questions

by msokolov＠ivan.Harhan.ORG

Witchy <witchy(a)binarydinosaurs.co.uk> wrote: > Also, if it's looking for a cluster then shut it down to get to the > dead-sergeant prompt (>>>) and type SET VAXCLUSTER 0 to turn off the > clustering software. The console ROM has no such command. The ROM knows nothing about VMS and clusters. MS

22 years, 7 months

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Old device (eg vacuum tube) documentation

by mouse＠Rodents.Montreal.QC.CA

While digging out the keyboard to scan (see my recent message about that), I noticed that I had a rather old book that perhaps some here might be interested in information from. It's an RCA reference book from 1963, and it contains a lot of data on various types of vacuum tubes and semiconductor devices of the day, >from vacuum tubes still in use today like the 6L6 I think I saw mentioned recently to picture tubes (even a few colour types) to tube types I've never heard of like "nuvistor" and "novar". There are a number of cross-reference tables of various things, indexed by various useful things. There is a pile of somewhat similar information about semiconductor devices (though a good deal less in terms of pages in the book) and a number of pages on batteries. There are then several pages of ads for devices like multimeters and oscilloscopes and signal generators, ending with a calendar for 1963 and a few pages of address-book. There are a few mildly interesting one-page things, like one giving a number of RCA sales offices, complete with phone numbers like "WHitehall 4-2900". I would take a good deal of persuading to part with the book itself. But if anyone is interested in data from it, including scans of various portions, drop me a line. /~\ The ASCII der Mouse \ / Ribbon Campaign X Against HTML mouse(a)rodents.montreal.qc.ca / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B

22 years, 7 months

5
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E-bay: Transputer development board

by rigdonj＠cfl.rr.com

<http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2590650055&category=40004> joe

22 years, 7 months

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Aquarius II on eBay didn't sell at over $400

by pete＠dunnington.u-net.com

On Jan 19, 20:49, Witchy wrote: > > PS. Fix your mailer! Yours are the only messages that default to reply to > > you and the list (boo!) > > Nothing to do with me I don't think - I'm on bog-standard outlook 2000 here > and haven't changed settings for years. It *is* your mailer. It appears to be putting an unneccessary "Reply-to:" header in, and when the list software sets its "Reply-To:", it gets concatenated to yours instead of replacing it: From: "Witchy" <witchy(a)binarydinosaurs.co.uk> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> Date: Mon, 19 Jan 2004 20:49:49 -0000 Message-ID: <EAELLACDNKNOEIOECBEEOEJBEJAA.witchy(a)binarydinosaurs.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-BeenThere: cctalk(a)classiccmp.org X-Mailman-Version: 2.1.2 Precedence: list Reply-To: witchy(a)binarydinosaurs.co.uk, "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> Given your Outlook puts in the correct "From:" header, adding a "Reply-To:" is redundant and arguably incorrect. For a short while, late last year, I had my MUA add a "Reply-To:" and the result was exactly the same. A few other people had the same problem, and appear to have fixed it. -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

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Mitac LIC-2001A Little Intelligent Computer

by pete＠dunnington.u-net.com

On Jan 22, 12:15, Doc Shipley wrote: > On Jan 22, 2004, at 11:54 AM, Vintage Computer Festival wrote: > > On Thu, 22 Jan 2004, ed sharpe wrote: > > > > BTW, you have the Reply-To: set in your mailer as well. > > > > (I'm going to pick you guys off one at a time until I've got you > > all... ;) > > <cough>netcop<cough> Maybe we should all turn on our "Reply-To:" headers and see what happens. We could all set them to "vcf(a)siconic.com" so the results can be properly monitored ;-) -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

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Quicky SGI Question (skin removal)

by dholland＠woh.rr.com

Hi, A quick question (should even be on topic... theoretically... ) I've a SGI Crimson, in a older PowerSeries 4D frame that I need to move >from upstairs to downstairs. Looks alot like so: http://www.schrotthal.de/sgi/4d/440_powerseries.jpg Anyways, cause its little ol' me, I need to get it as light as possible, so I don't kill myself (or drop it) trying to get it down the stairs. I did _completely_ disassemble the thing to dust it, and get it upstairs in the first place. I've already pulled the boards/drives which relieves a lot of the weight, however, I also want to pull the PSU to relieve its weight, then hopefully I can carry the "carcass" downstairs by myself. However, for the life of me, I can't remember how the devil I got the skins off to get access to the PSU. (And I'm still "googling") Anyone know? Thanks, David PS: If this isn't quite on topic, my apologies, I'll quietly go back to poking and prodding... PPS: If it is on topic, and anyone has a set of proper red Crimson skins they'd like to unload, please let me know. :-)

22 years, 7 months

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brew-your-own-unibus boards?

by msokolov＠ivan.Harhan.ORG

Here's my take on the issue of not being able to use standard drivers and receivers for UNIBUS and Q-bus. Aren't both of these buses old enough that DEC made devices for both of them using only discrete logic, no ASICs? If they did make UNIBUS and Q-bus devices w/o ASICs using only standard discrete logic, as I'm sure they did, what did they use for drivers and receivers? MS

22 years, 7 months

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brew-your-own-unibus boards?

by pete＠dunnington.u-net.com

On Jan 22, 13:27, Joe R. wrote: > I missed the first part of this discussion and I just found this message > by chance. However it is NOT TTL, it's DCL according to my 1971 Signetics > Digital 8000 Series TTl/MSI catalog. Since it's not TTL this catalog > doesn't have a data sheet for it > >----- Original Message ----- > >From: "Patrick Finnegan" <pat(a)computer-refuge.org> > >To: "General Discussion: On-Topic and Off-Topic Posts" > ><cctalk(a)classiccmp.org> > >Sent: Wednesday, January 21, 2004 12:10 AM > >Subject: Re: brew-your-own-unibus boards? > > > > > >> On Tuesday 20 January 2004 18:06, Tony Duell wrote: > >> > Driver : 8881 (quad 2 input NAND with open collector outputs) > >> > >> Does anyone have a spec sheet on the 8881's? The essential data is in the back of most QBus handbooks, along with data for 8640 and 8641. 8881 is a quad 2-input NAND bus driver. 8640 is a quad 2-input NOR bus receiver, 8641 is a quad bus transceiver. The driver outputs are open-collector. Bus Driver 8881, 8641: Input high voltage Vih 2.0V min Input low voltage Vil 0.8V max Input high current Iih 60uA max [note 6] Input low current Iih -2.0mA max [note 6] Output low voltage, 70mA sink Vol 0.8V max [note 1] Output high leakage current at 3.5V Ioh 25uA max [notes 1,3] Propagation delay to low state Tpdl 25ns max [notes 1,5] Propagation delay to high state Tpdh 35ns max [notes 1,5] 1. This is a critical parameter for use on the I/O bus. All other parameters ar shown for reference only. 2. This is equivalent to being capable of driving 16 unit loads of standard 7400 series TTL integrated circuits. 3. Current flow is defined as positive if into the terminal. 4. Conditions of load are 390 ohms to +5V and and 1.6 k ohms in paralel with 15pF to ground for 10ns min and 50pF for 35ns max. 5. Times are measured from 1.5V level on input to 1.5V level on output. 6. This is equivalent to 1.25 standard TTL unit loading of input. 8881 Pinout: ___ ___ | U | Y1 |1 14| Vcc A1 |2 13| Y4 B1 |3 12| A4 Y2 |4 11| B4 A2 |5 10| Y3 B2 |6 9| A3 GND |7 8| B3 |_______| While I was looking up my NatSemi Interface databook, I notice it lists the DS8640 as an exact replacement for an SP380 (quad 2-input NOR bus receiver), and an 8T380 is the same thing. An 8881 is very similar to a 7401. The main difference is that bus drivers can typically sink 50mA Iol or so at Vol, whereas a 7401 is only rated for 16mA -- about half what you would expect to need. The speeds are about the same: 7401 has faster Tpdl (15ns max versus 25ns max), but slightly slower Tphl (typically 35ns, max 45ns, albeit for a slightly lower threshold of 1.3V, versus 35ns max for 1.5V thresholds). -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

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Looking for Claris AtEase software for classic macs

by willisj＠atlantis.clogic-int.com

See subject line. -- John Willis Coherent Logic Development willisj(a)atlantis.clogic-int.com

22 years, 7 months

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4 PDP-11's found (plus RK05's) and VAX 7000 !

by waltje＠pdp11.nl

All, Looks like we will be able to save these from the Evil Melter, enough people have expressed their interest. Some points of interest: - they are in Santa Clara, CA, not The Netherlands ;-) (sorry, my German and Spanish friends) - they are in a "take em all or go away" deal; this scrapper is not one of the friendliest in the trade... still, he *does* let me go through things, which he never allowed before... - i currently dont have time to work on the systems, as I am about to go to boston, so will just get them and store them in a safe place until march, when i am back here. So.. to all who wanted some of the gear: I am going to arrange for pickup of the stuff (all of the 7 racks, including the ones with all the lab peripheral shtuff) and take out the cruft. Someone local wants to pick up the programmable power supplies saturday, so that is good ("one rack down, 6 to go!") and the digital voltmeter is also "taken". I will try to compress the stuff into 2 or three of the racks (the H960 clones from Tek) to save space. I *assume* nobody wants the Tek displays/terminals. Nobody wanted the VAX 7000, so I'll try to take some pictures of it, before it visits the Evil Melter. Cheers, Fred

22 years, 7 months

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Corvus Omninet and Apple IIe - need docs

by aek＠spies.com

I have the Constellation III manual for the AII scanned, will try to get it on line at www.bitsavers.org/pdf/corvus in the next day or two.

22 years, 7 months

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scsi cables & peecee stuff wanted

by jwest＠classiccmp.org

I'm in need of two scsi cables, the ones with the 50 pin centronics connectors on both ends. One cable needs to be about 5 foot, the other cable needs to be about 1.5 feet. A 50 pin centronics terminator is needed too. Also looking for an AGP card that has a fairly mainstream chipset (so X11 will support it) that does 1024x768 in 32K colors. Nothing fancy. This stuff is only vaguely classic computer related in that I'm trying to finish off building a PC (AMD K6-2/450!) used to support my classic machines (for burning tapes, disks, etc.). Thanks! Jay West

22 years, 7 months

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Cromemco SCC Eproms

by pete＠dunnington.u-net.com

On Jan 21, 17:40, Joe Abbott wrote: > Just my luck! Thanks anyway, Pete. Hopefully someone > out there will be able to help. I hope so! > I'd bet yours contains the code to disable the onboard > roms and jump to the floppy boot rom. My System Zero > manual mentions this and lists the asm code as well as > a hardware mod. Might be why there doesn't seem to be > many of these roms around. Could be. The first EPROM "lives" at 0000H so mine contains: 0000 3E 00 LD A, 0 0002 D3 23 OUT (23H), A ; dunno what this port does 0004 3E 01 LD A, 1 0006 D3 22 OUT (22H), A ; nor this one 0008 21 16 00 LD HL, 16H ; 22 000B 11 00 24 LD DE, 2400H ; 9216 or start of non-SCC memory 000E 01 07 00 LD BC, 7 0011 ED B0 LDIR ; copy 7 bytes from 0016-001C to 2400 0013 C3 00 24 JP 2400H ; and execute there 0016 3E 80 LD A, 80H ; set top bit 0018 D3 2A OUT (2AH), A ; don't even know this one 001A C3 00 C0 JP 0C000H ; start of RDOS? -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

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Corvus Omninet and Apple IIe - need docs

by maya2blue＠juno.com

I have ten Apple IIe's, a Corvus full of MECC and other software. I have a 4 drawer file cabinet full of Apple eucational software, and *lots* of extra Omninet Apple transporter cards, cables, and trunk adapters. Everythings works just fine. But..... I have no documentation for the Corvus hardware or software. The hardware specs are: Corvus model 74MB7 Rev C SN 398-GN9230-P The Apple cards "Corvus Systems Transporter 8010-10969 rev E" The adapters "Corvus Systems trunk adapters A 8010-12393 01" The cables are marked "OCS II TU 6010-078681-01 low voltage computer cable" The software is "Corvus Systems Constellation III V3.0" I need *both* the software and the hardware docs. Of course, I would certainly be glad to find either one! Any help locating these manuals, as well as any helpful hints, would be much appreciated. Many tks!! Harve Harve Thorn Fayetteville, AR ________________________________________________________________ The best thing to hit the internet in years - Juno SpeedBand! Surf the web up to FIVE TIMES FASTER! Only $14.95/ month - visit www.juno.com to sign up today!

22 years, 7 months

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M7891 switch settings? (unibus)

by fm.arnold＠gmx.net

cctech-request(a)classiccmp.org schrieb am 22.01.2004: >Message: 29 >Date: Thu, 22 Jan 2004 08:04:58 +0100 >From: Gooijen H <GOOI(a)oce.nl> >Subject: RE: M7891 switch settings? (unibus) >To: "'General Discussion: On-Topic and Off-Topic Posts'" > <cctalk(a)classiccmp.org> >Message-ID: > <1A9EACFF5B9EB9489F00104C00ECF641027B0EC7(a)hqvenlomail.oce.nl> >Content-Type: text/plain; charset="iso-8859-1" > >I have scanned 11/34 field maintenance print sets. >They are at http://www.mainecoon.com/classiccmp/ >And if I am not mistaken the MOS memory is there too. >AFAIK is MS11 correct, just the suffix letter makes >all the difference (core, 11/44 MOS, etc.) MS11-xx is alway semiconductor memory of different capacities and speed as specified by the last two caracters (to the best of my knowledge...) MM11-xx are the true core memories with the ferrite cores. (Wanna see a MM11-YP, 32k x 18 core-stack? Then bump the cofee-machine) several years after Mos memory became available people were still talking about core if they just meant the mainstorage or R/W-Memory, regardless of the technology it was built with. > > gd luck, >- Henk, PA8PDP ^^^ Heh heh, on what frequency is it radiating? Do you remember the little proggys that would make a pdp produce sound on an AM-receiver not tuned to any station? >> -----Original Message----- >> From: Brad Parker [mailto:brad@heeltoe.com] >> Sent: donderdag 22 januari 2004 1:18 >> To: arcarlini(a)iee.org; General Discussion: On-Topic and >> Off-Topic Posts >> Subject: Re: M7891 switch settings? (unibus) >> >> >> "Antonio Carlini" wrote: >> >> Does anyone have a manual for an M7891 (128kx18 MOS memory)? >> > >> >Is that an MS11 of some sort? if it is 128kx18, then it is a MS11-LD, and has an integrated parity controller. I should have the maintenancemanual somwhere if it of use to anyone. I will sent a free copy to aomeone who likes to convert it to .pdf file to be put on-line. (Will have to dig it from the garage, however) Frank

22 years, 7 months

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anyone want some TI 990 boards?

by aek＠spies.com

Don't need those, but if you should run across a WD800 disc/floppy box I could use anything down to just the chassis, backplane, and power supply

22 years, 7 months

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Skew Tape on eBay

by jpl15＠panix.com

Skew master 1/2" alignment tape, seems quite reasonable... http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2781808606&category=1247 Cheers John

22 years, 7 months

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You lucked out!

by kyrrin＠bluefeathertech.com

Hi, Joe, (CC to Classiccmp) You lucked out. Data I/O says that what you have there is the 8MB board. Enjoy! -=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner & Head Hardware Heavy, Blue Feather Technologies -- http://www.bluefeathertech.com kyrrin (at) bluefeathertech do/t c=o=m "If Salvador Dali had owned a computer, would it have been equipped with surreal ports?"

22 years, 7 months

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wow! just got a IBM PC Luggable! More info?!

by esharpe＠cox.net

the museum was just given a nice IBM PC that is a luggable... sort of like a compact! have not seen many of these... are they scarce? would like to find any advertising material or manuals etc that would complement it in the IBM display... had not really planned on having each and every model on display but this is kinda cute... let us know if you have any related or scans of related stuff! Thanks Ed Sharpe archivist for SMECC Please check our web site at http://www.smecc.org to see other engineering fields, communications and computation stuff we buy, and by all means when in Arizona drop in and see us. address: coury house / smecc 5802 w palmaire ave glendale az 85301

22 years, 7 months

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IBM PS/2 Model 25

by CPUMECH＠aol.com

I have the following available: 8525-036 8530-021 8550-021 8560-071 8503 8513 Make a reasonable offer. Bob Dataterm, Inc. (781)938-1010

22 years, 7 months

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anyone want some TI 990 boards?

by rigdonj＠cfl.rr.com

I found these. Does anyone want them? The socketed ICs have been pulled but otherwise they appear to be in good condition. TI 990/203A Memory card. HAD 16 4164s installed and 16 empty sockets. TM990/101MA CPU card. HAD a 9900 CPU, four 2114s, two 9902s and two 9904s installed. Joe

22 years, 7 months

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Advice on electrostatic deflection CRT ?

by uban＠ubanproductions.com

At 10:30 PM 1/21/2004 -0600, you wrote: >In message <200401212038.18544.finnegpt(a)purdue.edu>, Patrick Finnegan writes: > >Tom Uban declared on Wednesday 21 January 2004 07:15 pm: > >> http://www.ubanproductions.com/Images/console_joe.jpg > >> http://www.ubanproductions.com/Images/console_joe_tom.jpg > >> > >> I have a real keyboard to fill the hole. I am going to have to create > >> some new electronics as much has been stripped, but what a cool > >> project! > > > >Hah, I know where you got that from... I saw it there just a week or two > >ago. I'm glad that it went to a good home... I did't have anywhere > >near enough space to put it. > >Whoa! Are you saying that the console for the 6000 series >machine that PUCC had is just now leaving campus? I remember >when they decomissioned those machines around '89 or '90. >In fact, I snagged a couple of manuals that were sitting in >the hallway afterwards. > >By the way, do they still have those 205s and that ETA-10 >they had way back? I've got to figure they got rid of them >a while back, but you never know. Yep, the console had languished at salvage for more than a decade, in a back corner. Much of the electronics has been stripped, but the structure is pretty complete and the CRTs and much of the HV is still there. The 205 carcass is still there, being stripped for gold, no cards left, just backplane blocks and coaxial interconnect. I don't know what happened to the ETA-10, but I'm guessing it was sold. --tom

22 years, 7 months

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XGA monitor

by vcf＠siconic.com

I just got in an XGA monitor. Now, I vaguely remember that this was a precursor to SVGA. Correct? Is this worth saving from a historical point of view? I'm thinking yes. Here's some terse information: http://www.webopedia.com/TERM/X/XGA.html -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

22 years, 7 months

2
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M7891 switch settings? (unibus)

by GOOI＠oce.nl

I have scanned 11/34 field maintenance print sets. They are at http://www.mainecoon.com/classiccmp/ And if I am not mistaken the MOS memory is there too. AFAIK is MS11 correct, just the suffix letter makes all the difference (core, 11/44 MOS, etc.) gd luck, - Henk, PA8PDP > -----Original Message----- > From: Brad Parker [mailto:brad@heeltoe.com] > Sent: donderdag 22 januari 2004 1:18 > To: arcarlini(a)iee.org; General Discussion: On-Topic and > Off-Topic Posts > Subject: Re: M7891 switch settings? (unibus) > > > "Antonio Carlini" wrote: > >> Does anyone have a manual for an M7891 (128kx18 MOS memory)? > > > >Is that an MS11 of some sort? > > I thought MS11 was core. This is MOS. maybe I'm confused. > > -brad

22 years, 7 months

1
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XGA monitor

by SUPRDAVE＠aol.com

In a message dated 1/21/2004 10:45:48 PM Eastern Standard Time, vcf(a)siconic.com writes: I just got in an XGA monitor. Now, I vaguely remember that this was a precursor to SVGA. Correct? Is this worth saving from a historical point of view? I'm thinking yes. Is it an IBM 9517? XGA was IBM's hires VGA I think after they made the 8514 display and adaptor. Debuted on the PS/2 models.

22 years, 7 months

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Advice on electrostatic deflection CRT ?

by aek＠spies.com

I have what I believe is a custom CRT. It has a 12" round face, is approximately 20" long -- .. and has a second one mounted next to it, and a keyboard underneath? There may be schematics for such a device in the Computer History Museum archives if so.

22 years, 7 months

5
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TE16 capstan roller is very sticky -- what to do?

by vp＠mcs.drexel.edu

I haven't even seen a TE16 capstan roller, but since TU58s have a similar mechanism to the HP-85 cartridge drives, the following advice may be of use: 1. erd posted the following in the vintage-computer mailing list: > [...] I have used 1/2" tygon tubing from the local hardware store > (think "large aquarium hose") to refurb DEC TU58 drives (same tapes, > same capstan, same melting problem). > > I got a foot of it a few years ago and have yet to run out (even though > between HP line analyers, VAXen, and a VT103, I have nearly a dozen > drives to overhaul). 2. katie posted the following in the MoHPC forum: > In the plumbing department at Home Depot I found some stuff called > Magic Wrap, it's a roll of very thin rubber 1" x 16'. I cut a 2" x > 1/4" piece of this stuff stretched it out to about the width of the > roller then wrapped it around (several turns) the cleaned off roller > as tight as I could. Then I smoothed it out by spinning the drive > wheel at high speed and grinding down the rubber with an emery > board. This sort of melts the rubber and fusses it to itself getting > rid of the overlap and making the whole thing perfectly symmetric. > To spin the drive wheel I disconnected one of the motor leads and > put it on a variable power supply. You can use up to 12 volts but > I found 5 or 6 volts ran the wheel plenty fast with tons of torque. > Basically, you want to use it like a lathe and I found that the > tape head makes a good tool rest! 3. rhahm wrote: > I use 3/8" latex tubing from Lowes Hardware and LockTite glue. I > also leave the capstan on the motor during the repair. 4. http://www.voidware.com/calcs/hp85rep.htm I do not recommend heat shrink tubing as it tends to come off. Test the repair by retentioning a sacrificial tape (use the CTAPE command on the HP-85) two or three times in a row. If the tubing does not come off, then it'll probably stay put for a couple of years. If you are wondering what is the thickness of the rubber on the roller, the following picture is of an original HP roller with decayed coating still in place. http://www.series80.org/Pictures/HP85-TapeDriveCapstan.jpg **vp

22 years, 7 months

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Compaq Portable III 3.5" disk drive

by toresbe＠ifi.uio.no

Bob Lafleur spoke thusly: >I have a Compaq Portable III with a 3.5" floppy drive that seems to >have >gone bad. Does anyone know if this is a "standard" drive that could be >replaced with a current 3.5" drive? If not, is there a specific type of >drive I need to use for a replacement? > >I haven't even ventured to see how to go about opening the machine yet, >so I >don't know if it's easy or hard. Any pointers would be helpful. Thanks. I also had a Compaq Portable III - - it had a 5.25" FDD. It left the plant 17th March 1988 - the date of my birth! It got stolen from my grandmother's summerhouse in 1999 - and the insurance company gave me 1500 dollars for it! (Disclaimer: It was my mother who 'did all the talking' to the company - I got a lot of money because of the proprietary accounting software on the machine - The check came as a surprise to both of us)

22 years, 7 months

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available: 1/2 tape, 7 inch reels, $6.25 each

by jwest＠classiccmp.org

I was offered 7 inch diameter 600' tape reels (1/2 inch), fully reconditioned (cleaned and actually recertified) for $6.25 per tape. I was thinking of picking up some. I really like the small reels, normal size reels are great for backup, but for OS load tapes and file transport I like the 7 inchers. A) Is this a good price? B) Anyone want me to order some for them? (obviously depends on A) Jay

22 years, 7 months

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Advice on electrostatic deflection CRT?

by aek＠spies.com

> What is the best way to get a copy of the manual and/or schematics from CHM? I'll talk to the powers that be. From memory, they have a complete CDC 6600 print set (about 4 feet of 8x11 binders) so I suspect the console will be in there.

22 years, 7 months

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Modern Tube computing

by technobug＠comcast.net

On 21 Jan 2004 15:55:40 +0000, Gordon JC Pearce <gordonjcp(a)gjcp.net> keyed in: > On Wed, 2004-01-21 at 15:43, William Donzelli wrote: >>> The problem with NOS is that the glass is slightly porous and the >>> valves >>> will have gone a bit soft by now. >> >> This is basically false. > > Well, I call it as I see it. I have literally dozens of new old stock > valves, in their original cardboard sleeves. Some are useable, some > are > absolutely shagged. It's not all just cheap brands, too. Space heaters generally decay due to the escape of gasses into the envelope. This can be caused by two mechanisms: outgassing and leakage. When the tube is manufactured care is generally taken in choosing the metals/glasses to ensure that they have a low gas content. Initially the envelope is evacuated under fairly high vacuum and baked to allow any adsorbed gasses to outgas. The longer the baking, the better the vacuum. Consequently, the cheapies will use cheap metals/glasses and shortcut the bake-out time. Finally, the tube is sealed and the getter is fired (i.e. evaporated). The getter is an active metal that you find plated around the base of the tube. The getter generates a high vacuum in the tube by combining with active gas species and trapping the inert ones. Since getter is expensive, cheap tubes go short on this item with the subsequent outgassing of the guts causing the decrease in conduction. The second mod of failure is by leakage of helium. Although this gas exists at about 5 ppm in air it abhors a vacuum and will over time leak into the tube. Glass is permeable to helium. (HeNe lasers fail due to the leakage of He. You can take a dead HeNe and resurrect it by placing it in pure helium for several weeks...). The inclusion of gas into a tube is evident by the blue glow one sees in a tube that is going over the hill. Moral: don't own tube equipment if you're in the balloon business. As an aside, during the '60s is saw a control computer being developed for the military that consisted of several hundred tubes integrated into a volume of approximately 20x20x20 cm. The "tubes" were fabricated by forming cavities in ceramic layers with beta emitters for cathodes and plates and interconnection evaporated onto the ceramic. These layers were then stacked to form the controller. The average tube was on the order of a 1/2 cm^2 or less. This baby didn't glow, but I would like to have the bucks that went into its manufacture... Claude Ceccon

22 years, 7 months

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