test-drb January 2007

test-drb@ccmp.vtda.org

238 participants
538 discussions

by roosmcd＠dds.nl

> From: "William Donzelli" <wdonzelli at gmail.com> > Subject: Re: Intergraph / Clipper / HLH Orion > >> So noone has one of the Intergraph workstations? A pity. They were a >> dominant player, you'd have expected some of the machines to survive! > > > There are quite a few in Rhode Island at both computer groups. Even an > Intergraph VAX, with weird disk controllers made to search for polygon > data in hardware. > I still have a 2020 and a 125 from a lot I traded some time ago . These were used as GIS systems by the government. Never got the 125 to work because of some bug in the installation procedure. The steel-encased Intergraph 21" color monitor was also very nice.... I also have a lot of documentation, cd-roms, tapes and floppies. If anyone is interested, I have Intergraph memory for sale for 2000 machines, sets of 4x4MB special Intergraph 30-pin simms; my machines already is at the 64MB max. I've tried a long time to sell those, so far no luck, so I don't think many people have Intergraph workstations :) . greetings, Michiel

19 years

Atari 800, 810 parts (or Apple II) wanted

by wbblair3＠yahoo.com

> > but what were the differences besides the keyboard? > > They must have had similar internals. > > Expansion options I would think. A friend of mine in highschool had both > the 400 and 800 units , but we only used the 800 when we had groups over to > play Ultima III and IV. I snooped around and remember that there were card > slots for RAM and ROM carts under the hood of the 800 but never looked in > the 400. > > This site shows the expansion bays (and differences) in the 2 units: > > http://www.silicium.org/atari/800.htm > http://www.silicium.org/atari/400.htm > > It looks like the 400 was stuck with its 16K? RAM while the 800 can be > expanded more and it has an extra ROM port it seems. > > The original series was built like a tank, the XL and later models were not > as good from what I remember. The cast aluminum internal case was for EMI reasons. They were being extremely conservative to the point of overkill since, at that time, the less restrictive FCC ratings specifically for digital devices in homes weren't yet in existence. The 400 sold for US $549.95 while exactly the same hardware (with respect to custom processors and processing power) with more expansion capability and a real keyboard went for US $999.95 in the Atari 800. That $450 merely for more _easy_ expandability and a real rather than membrane keyboard wasn't enough to me to justify the additional cost, so I bought the 400 and wired up internally more memory and a real keyboard later on (for FAR less than $450). Byte magazine did a highly complimentary two-part (IIRC) series of articles on the powerful (for then) custom sound and graphics chips in the Atari machines. This was what led me to buy the Atari 400 a few years before the Commodore 64 became available. Jay Miner was the lead designer for those custom chips and he would later design the Amiga custom chips after leaving Atari. http://oldcomputers.net/atari400.html http://oldcomputers.net/atari800.html __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

19 years

Intel component data catalog 1982 on epay

by vax9000＠gmail.com

item 150077784822 Not my auction I post it here because the is near the end but only 8 people have viewed it! Maybe due to bad title or bad category. vax, 9000

19 years

laptops and 5.25 inch floppy drives

by Watzman＠neo.rr.com

Re: "What about taking an external USB 3.5" floppy drive and connecting a 5.25" drive to the interface that is being used for the 3.5" drive? It seems like it should work." Won't work. ALL of the USB 3.5" floppy drives that I've taken apart (over 100) are fully integrated USB devices. They are NOT a standard floppy drive (with a 34-pin floppy drive interface) and a USB-to-floppy controller.

19 years

Old D.E.C. Software and Hardware Manuals Available

by frajkp＠netscape.net

Hi, I have a few old Digital Equipment Corp. manuals. If anyone is interested in them they are yours for shipping costs (I'm in Ontario, Canada). They are as follows: - DEC System 10 - Mathematical Languages Handbook - DEC System 10 - Assembly Language Handbook - DEC System 10 - Users Handbook - KW11-L line time clock manual - ME11-L core memory system manual - Decscope User's Manual - RK611/RK06 Disk Susbsystem user's manual - DR11-C general device interface manual - AR11 User's guide - DL11-W serial iine unit/real time clock option maintenance manual - DL11 asynchronous line interface manual - RK11-D and RK11-E moving head disk drive controller manual - Rk611/RK06 disk subsystem installation manual - DZ11 user's guide Thanks ________________________________________________________________________ Check Out the new free AIM(R) Mail -- 2 GB of storage and industry-leading spam and email virus protection.

19 years

REPOSTING: Fw: an ADM-3A cam in tod...ay (Why this message hadn't shown up???)

by alexandre-listas＠e-secure.com.br

----- Original Message ----- From: "Alexandre Souza" <alexandre-listas at e-secure.com.br> To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> Sent: Thursday, December 28, 2006 2:01 PM Subject: Re: an ADM-3A cam in tod...ay >> Mac portrait displays are presumably similarly difficult to get >> replacement CRTs for, at least without realigning the yoke (I gather that >> most CRTs don't like a change in orientation, although I used to run a >> Sun colour display on its side a few years ago with no obvious >> ill-effects) >> For more conventional equipment I suspect that a swap is possible, >> providing knowledge of how to tweak the old circuits with the new tube is >> known. > > There is a very simple way of doing that. I though you all knew that, > and didn't want to be redundant, but here we go: > > - For mac portrait displays, I don't know. But I always had run tubes > on vertical on...ARCADE MACHINES! :D There is no problem on running B/W or > colour tubes on vertical, trust me. > > - Tube swap is very simple. You can assume that if the neck connector > fits, it will work. There are not many different tubes around, the problem > is the yoke. On B/W tubes you just take the yoke of the fried tube off and > put that on the new. No special alignment/convergence procedure necessary. > Just line up the text on screen moving the yoke cw/ccw and you are set. > For colour tubes, there are differences, here we go. > > - There are mainly three types of colour tubes: Mini-neck (the neck is > the diameter of a fat finger), Low focus and High focus. Of course, I'm > talking about inline masks. That Delta tubes (the RGB triad is a delta of > points, instead of three lines one besides other) I've never seen that > used in anything beyond televisions. If you have a monitor using a delta > mask tube, forget it! The adjustments you're going to do are too difficult > even to a profissional. > > - Low focus and High focus: You can see what kind is, looking at the > tube socket or the neck end of the tube. The high focus tube has a plastic > ring inserted on the pins, with a pin isolated from all the others. You > can see the same in the socket. Low focus doesn't have that, the end of > the tube has only pins, no plastic separator. > > - If you change colour tubes (talking about high focus and low focus), > usually it is just a matter of changing the tube and using the same > deflection set (yoke, convergence rings et al). E.G.: You have a monitor > like the Amiga 1084/S which uses a philips or samsung tube, Low focus > type, 15KHz yoke. Just buy any (!) television with the same > chacarteristics (low focus) and change it. Yes, you can use the same yoke. > Almost always the paramenters of the yoke are **the same**. The same > happens for VGA monitors. Usually, all vga monitors uses the same type of > yokes. YMMV, but this is the rule here. Please note: Yokes of 15 KHz > monitors and 31 KHz monitors (vga and above) are NOT intechangeable. But > the tubes ARE! > > - If you need to change the tube of, as an example, an EGA monitor, > you'll not find a complete set from a television of from an old vga > monitor, you'll have to change only the tube, keeping the deflection parts > (yoke, convergence ring) and will have to do all the convergence procedure > yourself. It is boring, it is hard, it is boring. But if you have no way > to find a suitable replacement tube, there you are. > > Ok, too much words, here we go for a simple list: > - If you have a B/W monitor, you can change the tube for ANY tube with > the same neck size and that fits phisically in place. Keep the yoke from > the old tube and put it on the new. You'll be only changing the glass > tube. > - If you have a COLOUR monitor, if the pixels are inline (sets of three > bars, RGB on screen), you can change for any tube of the SAME type, paying > attention if it is low focus or high focus. You can go some sizes above > and beyond. E.G: A 14" monitor can use a 17" or even a 20" tube, the > reverse is true. > - If you have a VGA or HIGHER frequency monitor, you need a tube with > yoke from a monitor of SIMILAR frequencies. Same as above > - If you have a 15 KHz monitor and only have a VGA tube, and > vice-versa, you can change THE TUBE, but will have to change the > deflection set (yoke/convergence rings) and do all the convergence > procedure yourself. Samsung manuals are great for teaching that, get the > Syncmaster III service manual and be free. > > Any questions, feel free to write me > > Greetings from Brazil, > Alexandre Souza > www.tabajara-labs.com.br

19 years

Atari 800, 810 parts (or Apple II) wanted

by chrism3667＠yahoo.com

I take it the 800 was the successor to the 400, the 1st unit my fingers ever typed on. Lol at typed on. You needed a ball peen hammer to do any serious coding. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

19 years

Build your own Apollo Guidance Computer

by grant＠stockly.com

http://klabs.org/history/build_agc/ Thanks to Richard Cini for the link! No, its not a kit from me, but it is really cool! It has good potential to become a kit! : ) Its an older link, but very cool. :) Grant

19 years

useful 286 docs for OS creation?

by chrism3667＠yahoo.com

http://cgi.ebay.com/Intel-80286-Operating-Systems-Writers-Guide_W0QQitemZ27… I'm trying to think if I have one of these in my stash. I ain't paying $20 for it regardless. Anyone have one? __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

19 years

govliq: mux and 26MB BAE/xerox hard drives

by aek＠bitsavers.org

> DEC RK03 (or workalike) I believe, looks to be in minty fresh > condition :) Diablo series 30 would be 2.5mb. Can't really tell from the pic of the box, but if they are in the 20mb range they would be Diablo series 40 5440 style with one fixed, one removable. 24 sector would work on TI and Interdata.

19 years

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test-drb January 2007