test-drb

test-drb@ccmp.vtda.org

101090 discussions

by dwightk.elvey＠amd.com

Hi Raoul I have the schematic for an Intel 80/10. This is one of the early 8080 SBC's that Intel sold( I think the 80/05 was first ). Many of the parts would be vary hard to find. I would recommend doing a 8085 if you can. These are a lot more friendly. Other than an address latch, the rest is more like just tacking on various bussed parts. I don't recall but I think there are some simple circuits in the Intel 8085 manuals I have. Dwight >From: "Raoul J.A. Somers" <raoul.somers(a)skynet.be> > >Hello, > >I am looking for circuit diagrams of the original 8080 / 8085 to >construct a prototype board > >Any hints? > >Raoul Somers >Brussels, Belgium

23 years, 8 months

Manual for GEC 2050 available (Bristol, UK)

by coredump＠gifford.co.uk

If anybody has a GEC 2050, and needs a manual, I may be able to help. Some friends have just found a 2050 processor manual, and would like to find a good home for it. E-mail me off-list for details, please. Here's a web page for the machine: http://www.cucumber.demon.co.uk/geccl/2050/ -- John Honniball coredump(a)gifford.co.uk

23 years, 8 months

Motorola 6800 parts

by coredump＠gifford.co.uk

Just to follow-up on a message from way back, I saw some Motorola XC6800 parts in a prototype board today. There was an XC6800 CPU (with clock module) and two XC6820 parallel port chips. The "XC" prefix, it seems, was a Motorola prefix for early pre-production parts. The date codes were from 1975. -- John Honniball coredump(a)gifford.co.uk

23 years, 8 months

New Comp in Old Cloth

by healyzh＠aracnet.com

> Get your own back - put your Amiga 1200 in a PC-type tower case... > http://www.powerc.com > > Sorta like that guy who put a Model A engine in a Pinto... > -- > Cheers, > Stan Barr stanb(a)dial.pipex.com Keep in mind, there is a 'legitimate' reason for doing this. People are adding so much onto their A1200's that they have to tower them. I mean, good grief, they're even strapping PCI slots onto those suckers! Though I think the lastest addons sort of turn the A1200 system board into a co-processor to the actual computer. Zane

23 years, 8 months

WTD: support ICs

by dwightk.elvey＠amd.com

>From: ard(a)p850ug1.demon.co.uk > >> >> Hi >> I'm always looking for DTL chips. Finding these >> would be great. Anyone with some of these hiding >> away or some old surplus board with them on it, >> I'd be interested. I forget the numbers I need >> but one is a open collector nand ( something like >> 935? but that sounds like a RTL). I'll have to make > >It's been a long time, but I thought the 935 was an hex inverter >(open-collecotr output, of course -- aren't _all_ DTL chips like that). >The quad 2-input NAND is the 846 (I was repairing a board that used one, >surrounded by TTL chips, the other day). > >Unless the _input_ characteristics are important (they were on this >board, as the inputs came from RC networks), you can often use the >equivalent TTL part (open-collector outputs, so something like a '03 for >the NAND or a '05 for the inverter) with resistor pull-ups (around 3k >from each output to Vcc). It's not original, but it normally works. > >-tony > > Hi Tony I think the one number I'm thinking of was something38 and not somthing35. Yes, it is true that a TTL will sub in most cases but there is one that doesn't work and that is where you have the expanded input ( also one of the chips I'm looking for ). This was only done on the DTL and not supported on the TTL of similar function. I have to go back and look to see what the numbers were. Dwight

23 years, 8 months

Synertek 6502 chips, 1984 date-code

by dwightk.elvey＠amd.com

>From: "Eric Smith" <eric(a)brouhaha.com> > >> Perhaps I'm confused. I may have been told "Synertek" by someone at >> work, c. 1984, and they might have meant Signetics. I _do_ have some >> 68000 chips with a "block S" logo... would that be Signetics, then? > >Sounds like Signetics. > >Those are still relatively uncommon. Motorola parts are obviously >the most common, perhaps followed by Rockwell and Hitachi. > >Anyone know whether Hitachi ever shipped their HD63000? That was to be >a CMOS version of the 68000 that would have predated the Motorola MC68HC000. > >I heard somewhere that Mostek alone of the second sources had a license >to make the 68020, but I don't think they ever did. > Hi Toshiba did a 68301 varient of the 68000 that I know of. ( it is in my telescope control ). Dwight

23 years, 8 months

Monroe Mod 1 Calc

by jpl15＠panix.com

At the Ft. Tuthill swapmeet last weekend in Flagstaff, AZ, I rescued an old Monroe Model 1 Electric Adding Calculator - 100 key panel, moving carriage with number drums behind windows - you get the picture. Since I am not at all interested in Yet Another Hobby, I thought I'd offer this to the List first, as I know there are some of you who love and collect these old babies. Cosmetically it is quite good, needs cleaning and touch-up; mechanically I am rather loath to fire it up, but all the knobs and keys seem to work, the carriage moves with both the side lever and the t-handled knob at the bottom of the keyboard, nothing seems gummed or jammed. I would like to get some small amount for it, and I will be pleased to pack and ship, weight will be about 15-20lb packed for the road from zip 95971. I will also be happy to send pix of it to you. Send offers to me privately please, not to the List, this is mostly Off Topic... Cheerz John

23 years, 8 months

Substantial tweaking on more exotic platforms (fwd)

by cisin＠xenosoft.com

Who is <edick(a)idcomm.com>? S/he/it appears to have Klez on their computer, and CLASSICCMP <CLASSICCMP(a)trailing-edge.com> is one of the bogus return addresses that it is affixing to its outgoing crap. Probably putting MINE on some, also! PLEASE, download and run the Klez removal tool from Symantec at: http://securityresponse.symantec.com/avcenter/venc/data/w32.klez.removal.to… It sure is nice to run PINE on a shell account - total immunity to all of the Outhouse crap. -- Grumpy Ol' Fred

23 years, 8 months

Books

by mranalog＠attbi.com

I just found a great set of books online and ordered them right away. The books are a 1962, first edition set, published by Howard W. Sams called "Computer Basics". VOL I: INTRODUCTION TO ANALOG COMPUTERS VOL II: ANALOG COMPUTERS, MATHEMATICS AND CIRCUITRY VOL III: DIGITAL COMPUTERS MATH AND CIRCUITRY VOL IV: STORAGE AND LOGIC CIRCUITRY VOL V: COMPUTER ORGANIZATION, PROGRAMMING AND MAINTANANCE The first two volumes are also being auctioned off on eBay right now and there are some pictures. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1551960033 The surprising thing is that I didn't find these books on BookFinder.com. I found them on Barnes and Nobles website (www.bn.com) under their "out of print" section. While I was looking around also I came across this interesting sounding book, but decided not to buy it. Basics of Digital Computer Programming, John S. Murphy, John F. Rider Publisher Inc. 1964 115 pgs. Illustrated throughout with diagrams and charts. Book # m840 Price: US$ 5.00 http://dogbert.abebooks.com/abe/BookDetails?AID=7169465&PID=284433&bi=14455… --Doug ========================================= Doug Coward @ home in Poulsbo, WA Analog Computer Online Museum and History Center http://dcoward.best.vwh.net/analog =========================================

23 years, 8 months

Wanted WD-100x disk controllers -- NOT for ISA bus

by eric＠brouhaha.com

Does anyone have any spare WD-1000, WD-1001, or related disk controllers, or documentation on them? These are *not* ISA bus cards, they have a parallel interface to a host, and control up to four 5.25-inch Winchester disk drives using the ST-506 or ST-412 interface. (Some models supported older 8-inch drives as well). They use the Signetics 8X300 or 8X305 processor, WD-1100 series support chips, and firmware in bipolar PROMs. Thanks, Eric

23 years, 8 months

Synertek 6502 chips, 1984 date-code

by dwightk.elvey＠amd.com

>From: "Ross Archer" <archer(a)topnow.com> > >"Dwight K. Elvey" wrote: >> >> >From: "Ross Archer" <archer(a)topnow.com> >> >> >> >I have some Synertek NMOS 6502s from various weeks >> >in 1984, still in their (original?) Synertek static tubes. >> >(At least, "Synertek" is stamped on the tubes.) >> > >> >A few "boy are these stupid" questions: >> > >> >1. Does anyone have any cool Synertek lore they'd like to >> >share with the group? All I know about them is they made >> >the SYM-1 and were a 6530 second-source. I guess it's safe >> >to conclude they were also a 6502 second-source. :) >> > >> >2. Is this a "Find" in any sense? (I paid all of 30 cents >> >each for them.) My motivation is to have enough replacement >> >parts to keep all my 6502-based hardware humming for years >> >to >> >come. Though in this case I have several lifetimes' worth. >> >:) >> > >> >3. Is there any reason to fear that these chips will "go >> >bad" >> >at any significant rate as they age? Is there any way I >> >could >> >store them (reasonably, I mean, no vaccum or outer-space >> >suggestions, please. :) to maximize their lifespan? >> >> Hi >> Sitting in the tube, they should last for 1000's of >> years. Moisture is about the only problem. Keep them >> in a zip-loc with a packet a silca-gel and they will >> out live you and your grandchildren's grandchildren. >> Any temperature that a human can live in will have >> virtually no effect on them. > >Humidity is pretty low in these parts, >and so should be OK with silica gel. > >As an off-topic digression, isn't silica gel the stuff >that always comes in little packages labelled >"Do not eat"? Honestly. Do they really look that >delicious? :) >I wonder if this is a new trend and soon pink erasers will >sport >similar warnings... That is the stuff. I real don't recommend eating it. Some come in colored crystals. This will tell you when it needs to be regenerated. This can't be done while in the plastic stuff but you can remove it and put it into a metal pan. Put this in the oven ( I forget the temperature but I'm sure a web search will find the right info ). I forget the temperature but when it cools, it is back to a bluish ( slightly brown from the heat ) color, it is ready to use again. If it is pink, it has absorbed too much water and won't do much. Dwight > >> >> > >> >My plan is to come into work some evening and suit up with >> >the full anti-static treatment at an EMI bench with my >> >little >> >SBC (retrofitted with a 40 pin ZIF socket to avoid bending >> >their machine-straight little legs), and test them all in >> >rapid-fire succession. Is there anything inherently dumb >> >about powering them up? >> >> If these are NOS and not test pulls, they should all be >> functional. No need to test them unless you just feel >> the urge. > >I do. :) > >Yes, they show all appearances of being NOS that's never >been >used in any way. > >I guess you could call it, to paraphrase a famous fast-food >slogan, the "on and off urge." > >:) > >Thanks! > >-- Ross > >> Dwight >> >> > >> >Okay, well enough dumb questions. Just looking for >> >any comments on any of the points, as the spirit moves you. >> >:) >> > >> >-- Ross >> > >

23 years, 8 months

Synertek 6502 chips, 1984 date-code

by dwightk.elvey＠amd.com

>From: "Ross Archer" <archer(a)topnow.com> >> >I have some Synertek NMOS 6502s from various weeks >in 1984, still in their (original?) Synertek static tubes. >(At least, "Synertek" is stamped on the tubes.) > >A few "boy are these stupid" questions: > >1. Does anyone have any cool Synertek lore they'd like to >share with the group? All I know about them is they made >the SYM-1 and were a 6530 second-source. I guess it's safe >to conclude they were also a 6502 second-source. :) > >2. Is this a "Find" in any sense? (I paid all of 30 cents >each for them.) My motivation is to have enough replacement >parts to keep all my 6502-based hardware humming for years >to >come. Though in this case I have several lifetimes' worth. >:) > >3. Is there any reason to fear that these chips will "go >bad" >at any significant rate as they age? Is there any way I >could >store them (reasonably, I mean, no vaccum or outer-space >suggestions, please. :) to maximize their lifespan? Hi Sitting in the tube, they should last for 1000's of years. Moisture is about the only problem. Keep them in a zip-loc with a packet a silca-gel and they will out live you and your grandchildren's grandchildren. Any temperature that a human can live in will have virtually no effect on them. > >My plan is to come into work some evening and suit up with >the full anti-static treatment at an EMI bench with my >little >SBC (retrofitted with a 40 pin ZIF socket to avoid bending >their machine-straight little legs), and test them all in >rapid-fire succession. Is there anything inherently dumb >about powering them up? If these are NOS and not test pulls, they should all be functional. No need to test them unless you just feel the urge. Dwight > >Okay, well enough dumb questions. Just looking for >any comments on any of the points, as the spirit moves you. >:) > >-- Ross >

23 years, 8 months

Things to sell/give away

by fernande＠internet1.net

-IBM 8bit ISA serial/parallel card with NS16450N uart, from an AT (Free) -WDC 8/16 bit ISA 256K VGA card (Free) -2 fan trays with fans from a DEC R400X DSSI expansion chassis.... these are the same as the ones in any BA440 chassis right? ($10.00 both) -1 power supply from DEC R400X DSSI expansion chassis. I assume this os also the same as for the BA440. ($20) -Kensington System Saver Mac, this is for a Plus, SE, etc. It's in great shape. ($15.00) -SCO Open Desktop 2.0.0 on QIC tape. I tried installing it, and I think I had a bad tape drive.... NT wouldn't see the drive either. I picked it up used but the tape had never been opened until I opened it. It is in the original box with all manuals and license card. ($5.00) -2 Belkin narrow centronics style 6 foot scsi cables and a no-name terminator of some kind, probably passsive. All in new condition. ($10.00) Chad Fernandez Michigan, USA

23 years, 8 months

Bull DPS-7000 rescue near Paris

by hansp＠aconit.org

I have a lead on a Bull DPS-700 mini/mainframe computer available near Paris for a very short time. Unfortunately I cannot rescue it, any takers? Reply direct to me at hansp(a)aconit.org -- hbp

23 years, 8 months

IBM DOS 1.1

by mythtech＠mac.com

>An eBay auction for DOS 1.1 just ended at over $300. Time to check my book case... I have a few copies that visually look like that pic, I wonder if any are v1.1... maybe I'll get lucky and can hock one to buy the new CD burner I want. -chris <http://www.mythtech.net>

23 years, 8 months

Panasonic KXP4400 - CHNG DRUM U27

by philpem＠dsl.pipex.com

Hi all, My prized laser printer, a Panasonic KXP4400, has just decided that the drum needs changing. I've put it into Service Mode and the drum pagecounter is only 2800; the drum is supposed to last 6000 sheets. I've come to the conclusion that the printer thinks the waste toner tank on the side of the OPC mech needs replacing. The OPC drum (the green roller) is fine; it's been printing OK for a while. Anyone know how to remove and empty the waste toner tank? To put it bluntly, I'm too cheap to buy a ?70 OPC drum when all that's wrong with the one I've got is a full waste toner tank! Thanks. -- Phil. philpem(a)dsl.pipex.com http://www.philpem.dsl.pipex.com/

23 years, 8 months

SONY BVE-30004 Editing System

by kenziem＠sympatico.ca

A while back some one mentioned an interesting machine used for video editing. The local scrap dealer has one of these, the CPU card has a 8080 chip on it and the memory card is very full. I 'd guess the box is 12" X 18.

23 years, 8 months

Hi folks... delurk

by mross666＠hotmail.com

Just introducing myself (although quite a few of you have probably encountered me elsewhere) - Mike Ross, Scottish, living in New York just now. Been collecting for over ten years, interested primarily in DEC and IBM equipment from mid-60s to mid-70s. Fairly extensive DEC collection - many 8s, 11s, a couple of 15s, a couple of 10s, and a 12. IBM so far is a few 3/360/370 front panels, although I've recently obtained an 1800. Always willing to trade, current wants list includes: Any IBM System/3 or System/360 or System/370 Bits for my 15s - RF15, RS09, RP02, TC15 My 12 is and always has been a bit of a mess - would love another 12, or at least a replacement perspex for the front panel. Also got a strange hankering for a VT05 (got a VT8e and love the shape!) I've also got a bit of a weakness for sexy supercomputers, Have a Convex and a couple of Connection Machines, always interested in more, maybe a Cray EL for completeness... A fair bit of my collection is online at: http://www.corestore.org Warning: corestore.org may be a bit of a mess for the next couple of weeks - major changes to content, look & feel are under way. Cheers! Mike _________________________________________________________________ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx

23 years, 8 months

8080

by raoul.somers＠skynet.be

Hello, I am looking for circuit diagrams of the original 8080 / 8085 to construct a prototype board Any hints? Raoul Somers Brussels, Belgium

23 years, 8 months

Got to look at the PDP7

by Innfogra＠aol.com

Finally was able to get a look at the PDP 7. I think it qualifies as the find of the week, or year, for me. I have corresponded with those most interested in it. If interested please contact me offlist at whoagiii(a)aol.com. Pictures at: http://members.aol.com/innfogra/pdp7.html or http://hometown.aol.com/innfogra/pdp7.html Here is the report; I saw the PDP 7. It is a delight. It is too bad the entire Lab could not be saved as a museum. The computer was installed in 1965 to run a 5 MEV Van de Graff Generator which had been installed in 1964. There is still one experiment running in the lab so it is not being shut down yet. The PDP 7 was replaced in 1992 with a RIDGE 32. The RIDGE 32 was replaced in 1999 with a SUN IPX which runs the Van de Graf via a GPIB connection. However the PDP7 was not removed or even disconnected. Harlan fired it up, tried to load a program off a disk drive, by first running a punch tape. Finally got the tape loaded and you could see action in the homemade disk drive controller, but nada. He was able to key in a simple program via the front switches that ran. Classic blinkin lights, wow! Evidently it is a Germanium transistor computer. Germanium, not being as stable as silicon, needs more love, care and attention to keep it running. There are two cabinets of boards and parts including extra core. It originally came with 4K of Core but they upgraded it with 4K more for a total of 8K. It has a 555 DECTAPE drive, a paper tape reader and desk in the central cabinet. It is 6 cabinets wide, however these are a narrow double door cabinet so the entire computer doesn't seem massive. It is cute! The paper tape punch is in the cabinet to the far left with 4K of core underneath. Second to the left is the other 4K and the power supplies for the memory. The third from the left is the console, desk and paper tape reader. IIRC there are three more cabinets to the left, the last two sparsely populated. All the cards are singles, early flip chip style. It originally came with a KSR 33 Teletype which is long gone. They used an ADM terminal in a roll around rack. Above the terminal is a HP1300 display. At the top are two DEC floppy drives with the Lab's own homemade disk controller. All this should be visible in the pictures. There is an entire file cabinet drawer of docs and paper tapes. Several boxes of boards and components, as Harlan said, a complete set of spares. he also indicated they were familiar with board level repairs and that is what it took to keep it running. They inherited lots of tapes from a PDP10 at one time, because they could use the same ones. There are several cabinets of small tapes. It is a classic museum piece.

23 years, 8 months

Fwd: who need a pdp11/20

by doc＠mdrconsult.com

In case anybody doesn't follow any of the 6 NGs this was posted to.... As usual, I don't know this guy from Adam, please respond to him not me. Doc From: "J.Fossy Weinzinger" <j.fossy(a)maxonline.at> Subject: who need a pdp11/20 Newsgroups: alt.sys.pdp10,alt.sys.pdp11,alt.sys.pdp8,comp.os.vms,de.comp.os.vms,vmsnet.pdp-11 Followup-To: alt.sys.pdp10 Date: Fri, 26 Jul 2002 14:37:52 +0200 hello, i own a pdp11/20 and in the near future i will not have enaugh room for it :-( so i will find sombody who want it the place where it is: austria, vienna, 1190 oh yes - it does not work :-( but you can repair it as i did 10 years ago so if you have interest and live near vienna write an email Fossy j.fossy(a)maxonline.at

23 years, 8 months

IBM DOS 1.1

by ekklein＠pacbell.net

An eBay auction for DOS 1.1 just ended at over $300. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2040680033> &item=2040680033 The seller incorrectly advertised this as the first released version of DOS, but even so I can't believe what folks will pay for this stuff. Could this mean that my copy of DOS 1.0 is worth $500 or more? Ouch. Erik

23 years, 8 months

Interak Computers.

by errol.page＠btinternet.com

Is there anyone who is interested in the 'ancient' INTERAK home-build computer? I have a lot of stuff in the attic - including manuals. It seems a shame to just throw it all away!. BTW I live near Reading in Berkshire, England - and the stuff is hardly miniature. Cheers Errol

23 years, 8 months

latest anti-haul from the local Goodwill

by mythtech＠mac.com

>> Maybe tomorrow I will take a few old clothes to be "donated" and I'll >> poke around a bit more. I wonder if dumpsters are considered like >> curbside garbage, once you toss it, it is public domain? (I don't know >> the cops in that town as well, so I might get hassled if I am back there >> dumpster diving at 3am) > >One of the places had a big sign making the claime that it was stealing to >take anything in (I agree), on (maybe) or around (don't think so) their >drop-off dumpster. It's since been replaced with a big sign claiming >leaving anything on the ground is illegal dumping and will be prosecuted to >the full extent of the law. I'm really not looking to steal from the drop off (that does seem a bit wrong). My dumpster reference was to their garbage dumpster in the back. They don't have a drop off dumpster there... just the back parking lot near the back door. People appear to just drop stuff on the ground. I figure I will look in the garbage dumpster to see if they toss the unwanted CPUs in there. That is my question regarding legality... taking >from a garbage dumpster. I know regular household garbage, as soon as you put it on curbside for pickup, is public domain, and anyone can help themselves to it (that includes non-bulk pickup, regular garbage... so it is legal for someone to root thru your garbage to pull out unwanted pre-approved credit card applications... it is just illegal for them to submit them to get a card in your name). So I didn't know if a business garbage dumpster was public domain as well, since you can't drag that to a curb. (I suppose there would be a trespassing issue, but that might be tough to enforce on a place that allows you to come on their property to drop off stuff) -chris <http://www.mythtech.net>

23 years, 8 months

Seeking Vectrix programming info.

by tlindner＠ix.netcom.com

> Someone near where I live is selling a Vectrix for a decent price and while it > would be OK as is... I programmed a vector graphics machine (Imlac) in my > near-childhood (at 19) and it would be wonderful to be able to do that again. > Does anybody remember seeing information on the instruction set of a Vectrix? > It was closed architecture for a while but it should be publishable by now*. Do you mean Vectrex? The cartridge based vector video game made by CGE. Then sold to Milton Bradley? Try usenet: rec.games.vectrex. It is a very active newsgroup. Both for players and programmers. There are (RS-232 based) RAM carts avaiable. That makes testing much faster. http://www.vectrex.biz/ Also check out Sean Kelly's MultiCart http://www.xnet.com/~skelly/vmulti.htm -- tim lindner tlindner(a)ix.netcom.com "Life. Don't talk to me about life." - Marvin, the android

23 years, 8 months

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