test-drb September 2006

test-drb@ccmp.vtda.org

200 participants
374 discussions

by cyberhusky69＠yahoo.de

Hello My name is Manou BILLA, I've found your request for the IHC-8000 on http://www.classiccmp.org/ pipermail/cctech/2004-May/029380.html I'm too looking tor a functional IHC-8000 with printer and TV modul if it ever appeared. So do you had success in acquiring the pocket computer? If yes do you know where one can still buy it? Thx a lot. Regards, Manou BILLA > Toshiba IHC-8000 (Pasopia Mini) > > Cameron Kaiser spectre at floodgap.com > Tue May 11 08:20:42 CDT 2004 > > Previous message: Pertec Interface > Next message: Apple Cable > Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] > > > Anyone out there know (or might be persuaded to part with >:-) any > source > on the Toshiba IHC-8000 (aka Pasopia Mini)? > > This was a small "pocket computer" circa 1983 with 4K of RAM and a > 24x1 > character LCD. Let me know if anyone remembers this unit, or better > still, > has one (working or not). > > -- > ---------------------------------- personal: http://www.armory.com/ > ~spectre/ -- > Cameron Kaiser, Floodgap Systems Ltd * So. Calif., USA * ckaiser > at floodgap.com > -- His mind is like a steel trap -- full of mice. -- Foghorn > Leghorn ---------- > > > > > > Previous message: Pertec Interface > Next message: Apple Cable > Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

18 years, 3 months

Sun 386i w/Monitor, keyboard, mouse free for pickup in southern NH

by dbetz＠xlisper.com

I offered a bunch of equipment here a little while ago and found takers for most of it. In fact, lots of the stuff has been picked up already. Thanks to all of you who picked up your equipment promptly! But, I have not found anyone who is willing to pickup my Sun 386i workstation with monochrome monitor, keyboard and mouse. Is anyone interested in this machine? If not, I'm going to have to take it to the dump. Unfortunately, I am not willing to package it up for shipping. If someone really wants it badly and is willing to pay for some place like Mailboxes Etc. to pack it up and ship it I can do that. I suspect that would be quite expensive though. So, any takers for a Sun 386i workstation? Thanks, David Betz dbetz at xlisper.com

18 years, 3 months

Teletype lubrication adviceu

by pete＠dunnington.plus.com

On Sep 14 2006, 23:00, Tony Duell wrote: > > > The parts manual exists, I have it. I only have one copy, though > (unlike the Techincal Manual where I have at least 2 of each volume, but > different editions IIRC). > > I might be able to be convinced to make a copy of it. It is, at least, > looseleaf... Hm... is it large? If it's not too big, I would pay for the copying. > > It says to lubricate the motor bearings at each end. But mine doesn't > > look like it was designed for that. > If this is the normal motor, then it's sort of sealed for life -- the end > housings are glued to the stator laminations, It's similar in > construction to the RX02 spindle motor IIRC. > > It can be lubricated, though. Take the motor out of the chassis, remove > the fan and the reduction gearing. There's a black plastic cover at each > end around the spidnle, these can be prised (pried) off. You can the > squirt some oil into the bearings. I think I'll leave that until after the event, when I have more time (I'm about to go on holiday) to do a full job. I've lubricated the shaft behind the motor, though, and a few other key points. Thanks for confirming that the motor is at least "sort of" sealed for life! -- Pete Peter Turnbull Network Manager University of York

18 years, 3 months

11/34a power supply/regulator question

by dundas＠caltech.edu

The recent discussion of Julian's PDP-11/34 inspired me to look at an abandoned one that I adopted some while ago. The particular computer in question is a /34A-DE. After looking at the prints and checking a few voltages, I find I have no +5. Reviewing the recent thread and looking closer at the prints, it seems that I am missing two H7441s. (It does have a H754 and H745, with the 54-10864-YA [Rev. L] distribution board.) Is that correct? It needs (one or) two H744 or H7441 (in my case) in order to operate? Thanks, John

18 years, 3 months

SCSI CD burner

by rtellason＠verizon.net

I've been going crazy here trying to get a burner working. One flat-out won't see a disc, even though I bought that one brand new (though that was a while ago and I made the mistake of continually using it for a CDROM drive as well), another one has mechanical problems, and then there's this external unit... It's a Yamaha CRW4260tx. I don't have a cable to connect from it to the Adaptec 2940 card that's installed in the machine. I currently have a 50-pin cable running from the inside connector on the Adaptec card to the internal connector on the drive (with its cover off). I'd like to put the drive in the box. Right now for both device number and termination these functions are handled by the external drive's box, on the rear panel. Can any of you guys help me with whether jumpers need to be _on_ or _off_ a pair of pins to make termination happen and to assign a device number? I'd measure it with a meter but don't have any handy means to get into those connectors at the moment... -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, a critter that can be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters" - Information is more dangerous than cannon to a society ruled by lies. --James M Dakin

18 years, 3 months

SCSI CD burner

by technobug＠comcast.net

On Sat, 16 Sep 2006 07:31:05 -0400, shoppa_classiccmp at trailing- edge.com (Tim Shoppa) wrote: [...] > This brings up what is probably a more on-topic issue: I've never had > a CD burner (SCSI, IDE, whatever) last more than a year or two. > Even if > only lightly used. Inevitably I just toss it and buy a faster one for > less $ than the first one cost. > > Once or twice I opened it up and removed dust-bunnies but this never > helped. > > Is there something I should be doing to preserve "classic" computer > CD readers/burners? > > I will admit that I have vengefully destroyed some very classic CD > readers (e.g. RRD50) purely out of spite for how dreadfully poor > performing they were. (A RRD50 is very optimistically "0.5X"). I > did the same with lots of RD5x MFM drives in the late 80's/early 90's, > oh how I despised RQDX/MFM hardware compared to the Emulex/Dilog/ > CMD/etc. clones! > > Tim. > > > ------------------------------ The basic problem with commercial CD burners/players is that they keep the laser diodes on when powered, although at the low power required for reading. The life of run-of-the-mill laser diodes is on the order of 10,000 (10.000) hours. Consequently, if you keep your system on all the time you can expect one to two years of useful life >from the beast (some longer, some shorter). Industrial class machine monitor the output power of the diode and power it on only when used. With feedback they are able to correct the loss of output and consequently extend the useable lifetime. From <http://www.wtec.org/ loyola/opto/ad_rohm.htm>: "Rohm representatives pointed out that the LDs used in datacomm applications have more stringent lifetime requirements than those in CD players. For CD players, lifetimes of 10 4 hours are acceptable, while lifetimes approaching 10 5 hours are required in datacomm lasers. At the time of the JTEC visit, Rohm guaranteed laser diodes with lifetimes of 10 5 hours at 60 deg. C" I have several CD burners that have been operating for over 8 to 10 years (slow...). These are external units to my boxen which are powered on only when used. I too find that most of my readers in my old equipment are dead having been run continuously for may years. Besides run-time, temperature is also a factor. If you can power off the unit and keep it cool, you should effectively extend its useful lifetime. CRC

18 years, 3 months

SCSI CD burner

by ajp166＠bellatlantic.net

> >Subject: SCSI CD burner > From: "Roy J. Tellason" <rtellason at verizon.net> > Date: Sat, 16 Sep 2006 00:35:56 -0400 > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > >I've been going crazy here trying to get a burner working. One flat-out won't >see a disc, even though I bought that one brand new (though that was a while >ago and I made the mistake of continually using it for a CDROM drive as >well), another one has mechanical problems, and then there's this external >unit... > >It's a Yamaha CRW4260tx. I don't have a cable to connect from it to the >Adaptec 2940 card that's installed in the machine. I currently have a 50-pin >cable running from the inside connector on the Adaptec card to the internal >connector on the drive (with its cover off). > >I'd like to put the drive in the box. Right now for both device number and >termination these functions are handled by the external drive's box, on the >rear panel. > >Can any of you guys help me with whether jumpers need to be _on_ or _off_ a >pair of pins to make termination happen and to assign a device number? I'd >measure it with a meter but don't have any handy means to get into those >connectors at the moment... On the drive itself, next to the 50 pin, there is an array of jumpers and they (on mine) are marked as to what they do. They will need to be configured! Allison

18 years, 3 months

Lots of Manuals from Trip

by aek＠bitsavers.org

> Al, we will have to talk as I got a number of manuals from my NE/MO/KS trip Tnx. Docs/software for the SEL would be of the most interest. I have a huge backlog of unit record manuals. The docs/tapes you saw at Rudy's will be made available for your 910 as soon as they get here (actually, I don't know if the stuff was picked up before or after you were there). An inventory of the IBM stuff from TX would be useful too.

18 years, 3 months

Cleaning RK07 packs?

by fireflyst＠earthlink.net

HI all, I got some RK07 packs from Dan that I need to clean, two of which had those black (mold? Dirt?) dots on them, which came off easily. They do smell slightly musty inside but there's no mold or dirt on the inside of the pack. I'd like to hear some opinions on cleaning procedures and equipment for something like this. What do you guys think? Julian

18 years, 3 months

CompuPro floppy controller differences

by ajp166＠bellatlantic.net

> >Subject: RE: CompuPro floppy controller differences > From: "Richard A. Cini" <rcini at optonline.net> > Date: Sat, 09 Sep 2006 13:59:08 -0400 > To: "'General Discussion: On-Topic Posts Only'" <cctech at classiccmp.org> > >All: > > I looked at the CompuPro disk image on Dave Dunfield's site and it's >for an 8" drive. The defining thing for me is getting a CP/M 2.2 image in >5.25" format. I've found another controller, from CCS (California Computer >Systems) that might work, too. So does anyone have a 5.25" CP/M 80 image for >either of these two boards? > > Thanks. > >Rich All my CCS disks are 8" I'd have to look to see if the controller even did 5.25 it's been so long. I do remember the CCS used a banking scheme that didn't agree with most of my systems. Allison

18 years, 3 months

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test-drb September 2006