test-drb

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101090 discussions

by quapla＠xs4all.nl

Hi All, I found 3 tapes, 2 are containing TCPWARE for OpenVMS v4.0-5 on TK-50's and a TK-50 containing 'ScriptServer printing system' V3.2-8 from GayMatter. Anybody interested in them? -- Certified : VCP 3.x, SCSI 3.x SCSA S10, SCNA S10

16 years, 6 months

Alphaserver 2100 fails to power up

by mtapley＠swri.edu

At 12:00 -0500 10/20/09, Doc replied to Dan: >Dan Williams wrote: >> I just turned on my Alphaserver 2100 after being powered off for >> around 6 months. It will not power up at all. I have reseated >> everything and tried a new PSU. Anyone got any ideas what would stop >> this machine from powering up ?. The service manual just mentions the >> door switch which seems ok. > > ASSuming you're working with a deskside and not a rackmount, the door >switch may be the problem. I've had 2 AS2100s fail to power on when the >PCB in the LCD/switch panel became loose in its mounts. It's mounted on >4 split pins and the PCB wears and I think the pins lose their spring, >so when you close the door it pushes the whole board aside instead of >closing the switch. > > The fix was insanely difficult and technically challenging - I jammed >the point of a plastic toothpick into the center of each of the split >pins and cut it off flush. :-) > > > Doc Dan, I also have an AS2100 4/275 deskside, I think. If there are useful tests that won't toast my machine, I can try to dig it out and run them for you if it'll help. Mine also hasn't been on in many moons, though, and I have not had a chance to get familiar with it at all. :-( . I assume you have access to all the documentation you want? -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

16 years, 6 months

Alphaserver 2100 fails to power up

by williams.dan＠gmail.com

I just turned on my Alphaserver 2100 after being powered off for around 6 months. It will not power up at all. I have reseated everything and tried a new PSU. Anyone got any ideas what would stop this machine from powering up ?. The service manual just mentions the door switch which seems ok. Thanks Dan

16 years, 6 months

N8VEM VDU board

by lynchaj＠yahoo.com

http://classiccmp.org/pipermail/cctalk/2009-October/277991.html N8VEM VDU board ROBO5.8 robo58 at optonline.net <mailto:cctalk%40classiccmp.org?Subject=Re%3A%20N8VEM%20VDU%20board&In-Reply -To=%3C004d01ca5053%24b64b0d40%2422e127c0%24%40net%3E> Sun Oct 18 19:33:00 CDT 2009 * Previous message: N8VEM <http://classiccmp.org/pipermail/cctalk/2009-October/277985.html> VDU board * Next message: CRT <http://classiccmp.org/pipermail/cctalk/2009-October/277986.html> Controllers Handbook by Gerry Kane * Messages sorted by: [ <http://classiccmp.org/pipermail/cctalk/2009-October/date.html#277991> date ] [ <http://classiccmp.org/pipermail/cctalk/2009-October/thread.html#277991> thread ] [ <http://classiccmp.org/pipermail/cctalk/2009-October/subject.html#277991> subject ] [ <http://classiccmp.org/pipermail/cctalk/2009-October/author.html#277991> author ] _____ Hi Andrew, Did you continue your work with the NEC uPD7220 GDC? If so can you tell us where you are with that project? Thanks Robo _____ size=2 width="100%" align=center> * Previous message: N8VEM <http://classiccmp.org/pipermail/cctalk/2009-October/277985.html> VDU board * Next message: CRT <http://classiccmp.org/pipermail/cctalk/2009-October/277986.html> Controllers Handbook by Gerry Kane * Messages sorted by: [ <http://classiccmp.org/pipermail/cctalk/2009-October/date.html#277991> date ] [ <http://classiccmp.org/pipermail/cctalk/2009-October/thread.html#277991> thread ] [ <http://classiccmp.org/pipermail/cctalk/2009-October/subject.html#277991> subject ] [ <http://classiccmp.org/pipermail/cctalk/2009-October/author.html#277991> author ] _____ More information about <http://www.classiccmp.org/mailman/listinfo/cctalk> the cctalk mailing list -----REPLY----- Hi Robo! Thanks! I am continuing work on the N8VEM S-100 projects. Currently I am working with some other people on S-100 related projects. I recently made a PCB manufacturing order for a group buy of N8VEM S-100 prototyping boards. With the larger quantity, I was able to reduce the cost per board to $18 down from $25 each originally. The next project is a joint project with another builder to make a different S-100 board (TBA) but not the uPD7220 board. I am still seeking basic information on the uPD7220 GDC and there is very little available. If you know where the uPD7220 User Manual and/or Design Guide are (paper or scanned), I would certainly appreciate some help in getting the information. I have the datasheet and some simple stuff gleaned from the web but that is insufficient information to design a full blown S-100 board from scratch. I am looking for some sample circuits to help with design and prototyping. Dan Roganti has (I think) a copy of the User Manual and is scanning it which should be available eventually. I can tell you with confidence after designing and prototyping the N8VEM VDU board, which was largely based on an already existing design, that video boards are complicated devices. Presently, I am working to build up the S-100 design skill set. Making S-100 boards is quite different than the ECB Eurocard designs I have done for the N8VEM project. Hopefully the third N8VEM S-100 board will be out soon and we can move on to more complex projects. I consider the uPD7220 design probably to be one of the more complicated designs so it will be a later project. I would like to do some simple boards like one each for parallel, serial, SRAM, RTC, etc. Maybe a debug board would be good depending on what is available. Eventually more complicated designs like a CPU board and/or graphics board. Given my skill set, available time, and tools the selection of projects is rather limited. Thanks and have a nice day! Andrew Lynch

16 years, 6 months

Awesome, clean original Mac on VCGM

by classiccmp＠vintage-computer.com

Someone just posted a really nice original Mac setup on the VCGM with pretty much everything but the box - from the pictures it looks just about perfect. http://marketplace.vintage-computer.com/auction_details.php?auction_id=1052… Not my auction but I thought I'd pass it along. -- Erik Klein www.vintage-computer.com www.vintage-computer.com/vcforum - The Vintage Computer Forums marketplace.vintage-computer.com - The Vintage Computer and Gaming Marketplace

16 years, 6 months

Free DEC junk

by wdonzelli＠gmail.com

I have a NOS envelope feeder for the DEC LN06 laser printer. Anyone need it shipping (from 10512)? Please reply of list. -- Will

16 years, 6 months

road trip, truck space available

by mcguire＠neurotica.com

Folks, Starting this coming Sunday (10/18), I'm planning to embark on a road trip in a truck from SW Florida to Poughkeepsie, NY, then to Boston, then back through the Columbus, OH area. I will have LOTS of extra room (at least half of a 28' truck) on all legs of this trip. The truck has a hydraulic lift gate and I have experience moving big, heavy computer equipment. I can be bribed to move big stuff along this route, should that be of use to anyone. I'm looking to defray the cost of the trip for my employer, but if it doesn't cost any extra money (i.e., not too far out of the way and not too time-consuming) I can be bribed with Cool Stuff too. Also, if anyone along that route has any spare DEC H960 racks or RA60 drives (preferably functional) that they want to unload, I'd happily take them away. :) -Dave -- Dave McGuire Port Charlotte, FL

16 years, 6 months

Largest ST-506 (MFM or RLL) type HDD?

by classiccmp＠philpem.me.uk

Hi guys, Does anyone know what the largest capacity MFM or RLL (i.e. ST-506/ST-412 type interface) hard disk was? I know the AT drive types go from 0 to 46 (plus user defined type 47), and the largest of these is #46: 1224 cyls, 15 heads, 17 secs (152MB). Question is, did anyone ever make an MFM drive that big, or was that strictly IDE territory? I know 80MB and 120MB IDE drives existed -- I used to have a Conner 120MB that was an utter pig to make work with any other drive, and I still have an IBM WDA-L80 80MB IDE drive. Thus far, the largest MFM drive I've found is the Micropolis 1325 (85.3Mbytes unformatted). Reason I'm asking is that I'm working on the seek logic for the disc analyser. At the moment, you can seek 127 cylinders at a time in either direction (there isn't a track-counter on the hardware, so all seeks are relative) and I was wondering if there's any point in increasing this further to accommodate drives with higher track counts. Cheers, -- Phil. classiccmp at philpem.me.uk http://www.philpem.me.uk/

16 years, 6 months

N8VEM VDU board

by lynchaj＠yahoo.com

Hi! I just finished building and testing the new N8VEM VDU board PCB version. It is a 6545 based video board for monochrome character display on your home brew computer much like a KayPro 10 display. It works OK and provides a composite video display, PS/2 keyboard, PS/2 mouse and a parallel port printer interfaces. It is meant for the N8VEM SBC but the design is general enough it should be useable on most any Z80 style system. If you are interested in building your own and/or writing software for the N8VEM VDU please contact me. When the SBC, ECB backplane, Disk IO board and VDU are combined they offer the potential for a completely stand alone home brew Z80 CP/M computer. The software for the VDU is still in development and it There are pictures and code on the N8VEM wiki in the VDU folder. Schematics and PCB layout are available. I have several PCBs. Constructive comments welcome. Please no flames. Thanks and have a nice day! Andrew Lynch

16 years, 6 months

Please support the Indivision ECS for brian fund. :-)

by brianlanning＠gmail.com

I "need" two of these things at $121 a piece. So I figure I'll start ebaying some things to feed my habit. If anyone would like a working amiga 2000 with hard drive or a steel case commodore 128D, let me know. I'd prefer to make a deal with someone on the list than to put up with ebay. I also have three JVC TM-9U 9" studio color monitors with BNCs and RCAs on the back. thanks. brian

16 years, 6 months

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