test-drb March 2006

test-drb@ccmp.vtda.org

233 participants
501 discussions

by john＠guntersville.net

Does anyone have information on the TI Travelmate LT220/V. A quick Google didn't turn up anything of value. I have acquired one with a pile of other items and have no idea how useful it might be. The power source, 18V DC did not come with it and there is no indication as to whether the center pin of the power connector is the positive connection or not. TIA John

18 years, 11 months

Fixing 8" disk hubs

by melamy＠earthlink.net

Another non-obvious possibility is that the disk jacket itself has been pinched around the edges and the extra friction is keeping the disk from spinning in the jacket. If you need the info off the disk, cut a small margin of the jacket off around the edges or you can remove the internal disk itself and put it in a known good jacket (cut just one end of the jacket for the disk to slide back into the jacket). Experiment... best regards, Steve Thatcher -----Original Message----- >From: Tony Duell <ard at p850ug1.demon.co.uk> >Sent: Mar 2, 2006 1:31 PM >To: cctalk at classiccmp.org >Subject: Re: Fixing 8" disk hubs > >> >> All: >> >> >> >> I'm restoring an IMSAI system which has an Icom "Frugal Floppy" >> system setup (8" FD-400 drives). I've been getting CRC errors since I got it >> running a few weeks ago, so I decided to run it with the cover off to try to >> see what's going on. Tonight I noticed that the floppy disk itself wasn't >> spinning. The hub engages when the door closes but it must be *just* missing >> contacting the diskette by *this* much. >> >> >> >> What kind of tricks are people using to improve the contact >> between the floppy disk and the spindle hub? I remember they made "hub >> protectors" for 5.25" disks - is there something similar? Other ideas? > >I think you're going about it in the wrong way. If the disks are not >obviously physically damaged (and you don't mention that they are), the >drive should grip them. If it doesn't, the fault is with the drive, not >with the disks. And I never believe in 'curing the symptoms' > >For some reason your drive is not clamping the disk properly. Maybe >there's a spring that's not providing enough tension. Maybe a mechanical >latch is not alighned properly and the clamp is not held down far enough. >I would start looking at something like that. > >-tony

18 years, 11 months

Need datasheet from HP 1989 Opto handbook

by philpem＠dsl.pipex.com

Hi, I'm trying to track down a copy of a datasheet from the Hewlett Packard 1989 Optoelectronics Handbook. Does anyone have a copy of this databook lying around somewhere? The datasheet I'm after is the one for the Thinkjet printer head - part number believed to be 51604A, though this may be different to the one in the databook (HP have this rotten habit of 'improving' things and changing the part numbers in the process). Thanks. -- Phil. | Kitsune: Acorn RiscPC SA202 64M+6G ViewFinder philpem at dsl.pipex.com | Cheetah: Athlon64 3200+ A8VDeluxeV2 512M+100G http://www.philpem.me.uk/ | Tiger: Toshiba SatPro4600 Celeron700 256M+40G

18 years, 11 months

Low-cost Online File Conversion Service - converts instantly between file formats

by radvance＠rochester.rr.com

To: classiccmp at classiccmp.org We offer a unique "instant online conversion" service, which converts your files between most word processor, spreadsheet and graphics file formats, internet formats such as HTML and XML (including to Microsoft Office 2003 XML), and also some data base formats. It also performs letter-perfect conversion of almost any such file to PDF. IT CAN CONVERT BETWEEN MORE FILE FORMATS, AND CONVERT MORE ACCURATELY THAN ANY OTHER ONLINE CONVERSION SERVICE WE KNOW OF! This service is available 24/7. There is no software to purchase, nor any subscription fee or commitment. You just pay as and when you need to convert files. Converting a small set of files costs as little as $9. This is an easy-to-use and reliable conversion service. From the service's web page, you click a "Convert" button, drag files to be converted into a dialog box that appears, and enter payment information. Your files are then uploaded to our conversion server, and in a couple of minutes the converted files are downloaded back to you. It's as simple as that. The whole process is automatic and very easy to use. All communication is encrypted and there is no security compromise. Please see http://www.acii.com/online.htm for more details. This service is particularly useful for conversions you run into occasionally, or for which off-the-shelf conversion software is not available. We welcome you to give this service a try. Please see http://www.acii.com/online.htm for a detailed listing of the file formats, pricing and other details. If you have any questions please let us know (simply respond to this email). To be removed from this mailing list, please respond with the single word "remove" in the subject line. Best Regards, V. Saini, for Advanced Computer Innovations, Inc. ADDRESS: 656 Kreag Road ~ Pittsford, NY 14534-3730 (USA) PHONE: (US)-585-385-3810 | FAX: (US)-585-385-6822 WEB: http://www.acii.com

18 years, 11 months

URGENT: Data recovery assistance needed in New Haven, CT area (cctalk)

by woyciesjes＠sbcglobal.net

I'm sending this one message to everyone who replied. Thanks guys... Anyway, here is everything I know about these discs. Unfortunately, the guy who knew about these is long gone (the usual ;). They are Canon CanoFile 502M Magneto Optical discs. Double sided, 256 MB per side. Physically they are 5 1/4" x 6". They were used in a Canon document imaging system. Don't know what OS it ran on. As it stands right now, it appears that the discs with the data we need aren't here. But we still want info about what we may need, and how much it'll cost, if we do need to read these in the future. Thanks again... -- --- Dave Woyciesjes --- ICQ# 905818 --- AIM - woyciesjes

18 years, 11 months

Fixing 8" disk hubs

by rcini＠optonline.net

All: I'm restoring an IMSAI system which has an Icom "Frugal Floppy" system setup (8" FD-400 drives). I've been getting CRC errors since I got it running a few weeks ago, so I decided to run it with the cover off to try to see what's going on. Tonight I noticed that the floppy disk itself wasn't spinning. The hub engages when the door closes but it must be *just* missing contacting the diskette by *this* much. What kind of tricks are people using to improve the contact between the floppy disk and the spindle hub? I remember they made "hub protectors" for 5.25" disks - is there something similar? Other ideas? As always, thanks. Rich Rich Cini Collector of classic computers Build Master for the Altair32 Emulation Project Web site: <http://highgate.comm.sfu.ca/~rcini/classiccmp/> http://highgate.comm.sfu.ca/~rcini/classiccmp/ /************************************************************/

18 years, 11 months

Fixing 8" disk hubs

by dwight.elvey＠amd.com

Hi Also, make sure that the disk isn't being clamped too tightly by the disk envelope. I've seen this happen a number of times by disk that were stored tightly in a bunch of disk. Things usually work OK if I manually rotate the disk in the envelope a few times but I've had to remove the disk from the envelope in a couple cases. Dwight >From: ard at p850ug1.demon.co.uk > >> >> All: >> >> >> >> I'm restoring an IMSAI system which has an Icom "Frugal Floppy" >> system setup (8" FD-400 drives). I've been getting CRC errors since I got it >> running a few weeks ago, so I decided to run it with the cover off to try to >> see what's going on. Tonight I noticed that the floppy disk itself wasn't >> spinning. The hub engages when the door closes but it must be *just* missing >> contacting the diskette by *this* much. >> >> >> >> What kind of tricks are people using to improve the contact >> between the floppy disk and the spindle hub? I remember they made "hub >> protectors" for 5.25" disks - is there something similar? Other ideas? > >I think you're going about it in the wrong way. If the disks are not >obviously physically damaged (and you don't mention that they are), the >drive should grip them. If it doesn't, the fault is with the drive, not >with the disks. And I never believe in 'curing the symptoms' > >For some reason your drive is not clamping the disk properly. Maybe >there's a spring that's not providing enough tension. Maybe a mechanical >latch is not alighned properly and the clamp is not held down far enough. >I would start looking at something like that. > >-tony

18 years, 11 months

RARE DEC PDP 1 MEG MEMORY BOARD on EBAY. HA! Item number: 8773655976

by lbickley＠bickleywest.com

Being a member of the PDP-1 Restoration Team at the Computer History Museum, I can assure everyone that this vendor doesn't have a clue (or is a fraud). I thought at first that he made a typo in the title - but no, he also restated "PDP-1" in his "RARE" article description statement. Sigh. Title: RARE DEC PDP 1 MEG MEMORY BOARD BY EMC CORP. Item number: 8773655976 Desc: THIS IS A RARE DIGITAL EQUIPMENT PDP ONE MEG MEMORY BOARD MADE BY EMC CORP.IT IS GAURANTEED TO BE WORKING. I'm tempted to buy it and then tell him I tried it out, and I couldn't make it "fit". ;-) Nah, that's too much work... Lyle -- Lyle Bickley Bickley Consulting West Inc. Mountain View, CA http://bickleywest.com "Black holes are where God is dividing by zero"

18 years, 11 months

Items for sale/trade

by zap＠columbus.rr.com

Not exactly sure what they are worth, but I have a few older computers that are looking for a home. AT&T Unix PC (has internal HD, software loaded but don't have the passwords!) Vector Graphic Memorite system (with manual) - Not terribly common >from what I've been told Original IBM PC & Printer (both in zip up bags) I'd be glad to chat with anyone interested in these machines (trading may be considered as well). I am located in Columbus, Ohio and could ship (but these things aren't exactly light!) I will be moving soon and I just don't have the room to take everything with me, so hopefully someone is interested! -Chris

18 years, 11 months

funny: write-only-memory (WOM) datasheet

by bert＠brothom.nl

http://www.national.com/rap/Story/WOMorigin.html

18 years, 11 months

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test-drb March 2006