test-drb April 2004

test-drb@ccmp.vtda.org

248 participants
481 discussions

by dwight.elvey＠amd.com

>From: "Scott Stevens" <sastevens(a)earthlink.net> > >On Wed, 07 Apr 2004 16:08:17 -0400 >Jim Donoghue <jim(a)smithy.com> wrote: > >> I'm trying to find a Z80 disassembler for Linux. There are a bunch of >> DOS ones out there, doesn't do me any good. A long time ago I had >> downloaded one that was source and compiled it, but I can't remember >> what it was. Anybody know of one? >> >> Jim > >Anything as simple as a Z80 disassembler is a stdin/stdout app anyway. Hi It is interesting that my definition of a disassembler is quite a bit different than yours. I would call this a code lister. A disassembler includes comments, selecting data types, labeling branching and entry points and statistical cross referencing ( usually as comments in code ). This is often an interactive process. I guess writing one's own disassemblers tends to spoil a person. Dwight

20 years, 8 months

Flash point, laser fuser and lubrication

by pete＠dunnington.u-net.com

On Apr 13, 14:43, chris wrote: > >Correction. I just learned that the flash point for 3-in-1 oil is 305 > >degrees Fahrenheit. If I recall correctly, the Laserjet II's fuser is > >heated to 320 degrees F., so... still, not good. > > put a little on a non flammable surface (like concrete), just a small > amount (comparable to what you put on the fuser)... touch a match to it. > If it doesn't ignite, you should be good to go on the fuser. Matches burn > hotter than 305 degrees. (do NOT do this test on a flammable surface or > with anything like a cup or cap of oil... given enough fuel/O2 mix, the > match will ignite the oil, and not in a very nice manner) That's a very poor test, and the quantity is not what matters to the chemicals partaking (or not) in the reaction :-) The local heat capacity is. The concrete keeps the oil much cooler than is required to *sustain* burning, and the hot fuser is not comparable to a slab of cold concrete. Pour half a cup of petrol (er, gasoline) into a bucket of water, drop in a match, and watch the match go out... -- Pete Peter Turnbull Network Manager University of York

20 years, 8 months

Flash point, laser fuser and lubrication

by rdd＠rddavis.org

Last night, I made the mistake of putting some 3-in-1 oil (yes, I know, it's not a good lubricant) in the bushings around the teflon roller (that the heater lamp runs through) in my Laserjet II when I disassembled the fuser to replace a worn 14-tooth gear. I should have done a more thorough disassembly and used grease rated for use with high temperatures... anyway, what concerns me is the low flash point for the 3-in-1 (if what's in the can I used is the same as the spray; the spray is all I could find data for, flash point about 101 degrees F). When the printer warms up for a few seconds, there's some smoke. I was thinking that it might just smoke a bit and then eventually stop smoking, but I remember, all too well, the time I accidentally spilled some motor oil on a hot exhaust manifold when I stopped at a service station on the way to pick up my PDP-11/73 system years ago... fortunately a rag was able to be used to put out the flames, and I do mean big bright yellow flames, quickly before any damage was done. Is this 3-in-1 oil likely to do the same thing in the fuser assembly? If it wasn't raining outside, I'd be tempted to put said oil on an old fuser assembly with a scratched up roller, with all useable parts removed, take it outside, apply power to it, and see what happens. -- Copyright (C) 2003 R. D. Davis The difference between humans & other animals: All Rights Reserved | My VAX | an unnatural belief that we're above Nature & www.rddavis.org | runs VMS & | her other creatures, using dogma to justify such 410-744-4900 | doesn't crash!| beliefs and to justify much human cruelty.

20 years, 8 months

Assorted free comms gear etc. (Milton Keynes, UK)

by julesrichardsonuk＠yahoo.co.uk

Hi, Somebody dropped off the following items (operational condition unknown) to the Bletchley Park computer museum the other week which we can't really make any use of: Two Racal Milgo Omnimux 82 advanced statistical multiplexors An ACT SDM-T (seems to convert several analogue phone lines to digital) An X-TEC Protocol Converter A Wellfleet Access Node Communications Server Large industrial rack system with 5" VGA display, Colorado 1440 tape drive, 3.5" floppy, PSU, and a huge backplane containing 4 PCI slots and 15 ISA slots. We actually have two units, but may be keeping the screen >from one of them as it could prove useful for something at a later date - maybe the backplane and chassis is still useful to someone though. I believe there's the PC-on-a-card board kicking around the office from one of the racks, the other one arrived with a bare backplane though. They're free to a good home; comms gear isn't really my thing so I just grabbed what was on the front labels - if any of the above sounds like it could be useful to anyone I can always get more details as to exact model numbers, what interfaces they have etc. cheers Jules

20 years, 8 months

12/1148

by cara.keir＠nessco.co.uk

I am looking for 1 x part number 21-17311-01 cpu1 processor. Our company is based in the UK. Can you supply this part. Best Regards Cara Keir Internal Sales On behalf of Nessco Limited Tel no: +44 1224 414143 Fax no: +44 1224 414192 Email:? cara.keir(a)nessco.co.uk "The information contained in this message is sent in the strictest confidence and may contain confidential or privileged information intended for use of the addressee only.? If you have received this message in error please delete it and any attachments and notify the sender immediately."

20 years, 8 months

Flash point, laser fuser and lubrication

by cb＠mythtech.net

>Correction. I just learned that the flash point for 3-in-1 oil is 305 >degrees Fahrenheit. If I recall correctly, the Laserjet II's fuser is >heated to 320 degrees F., so... still, not good. put a little on a non flammable surface (like concrete), just a small amount (comparable to what you put on the fuser)... touch a match to it. If it doesn't ignite, you should be good to go on the fuser. Matches burn hotter than 305 degrees. (do NOT do this test on a flammable surface or with anything like a cup or cap of oil... given enough fuel/O2 mix, the match will ignite the oil, and not in a very nice manner) You may not have sufficient fuel to start a chemical reaction. Unless you soaked the part in oil. However, regardless of the flammability... its going to smoke, and that's neither going to smell good, or be very healthy. So you'll probably want to break it down, clean it, and replace it with a high temp grease anyway. -chris <http://www.mythtech.net>

20 years, 8 months

Removing physical blemishes from CRT?

by dwight.elvey＠amd.com

Hi If it is a TV, the front is a protective glass and is not under the tension of the vacuum. Most CRT's for scopes expect there to be a plastic ridicule in front to protect, so doesn't have any protective glass. The glass used on TV's is ordinary plate glass and not tempered so it can handle scratches without failing. Even a crack will not propagate to the inside glass. Dwight >From: ard(a)p850ug1.demon.co.uk >> >> >> >> Although the CRT in question is off-topic, the question is fairly topical: >> >> Is there any way to remove physical blemishes from the face of a CRT? >> I've got a very nice 19" SVGA display that has some scratches on the face. >> They are somewhat invisible unless you happen to be looking at something >> at that part of the screen (lower third, right of center). >> >> Can this be buffed out or ... ? >> >> I hope there's a way to do this because I've been wanting to fix the face >> of my 35" ProScan TV that has the same problem. You barely notice it, but >> it is slightly distracting when you do. > >If the scratches are minor, so the CRT faceplate is not significantly >weakend, then there are kits available for polishing car windscreenss >(Oh, OK, auto windshields, right?). They'd probably help. > >If the CRT faceplate is weakened, then replace that CRT before it implodes! > >-tony >

20 years, 8 months

Installing SRM version 3.12 on HP9000/300 machine

by keith＠saracom.com

Quick question, Can one install the SRM OS on a 300 series workstation? I think I have a Model 360 (it has a 68030 processor, 68882 co-processor, scsi, lan etc). Anyway, I have a 9144 tape drive and when I try to boot the SRM tape, it lists it as booting and then blanks the screen and resets. When I use a hard drive with Basic 5.13, it boots fine. Am I doing something wrong or does SRM only work with the HP9826 and similar? Thanks Max

20 years, 8 months

Removing physical blemishes from CRT?

by dwight.elvey＠amd.com

Hi Bill This is a good point. Any polishing will stand out unless the entire surface is polished. One might even try getting a little varithane mat finish on a rag and wipe a little over the scratch. Then wipe around it with some thinner to remove any excess. It doesn't have exactly the same index of refraction but it would help hide the scratch. Dwight >From: "William Maddox" <wmaddox(a)pacbell.net> > >Does the monitor have an anti-glare coating? The various suggestions >posted for buffing out the damage would seem applicable to an ordinary >glass screen such as I have seen on older/cheaper small-screen monitors, >but most newer and large screen monitors have some kind of anti-glare >coating. The best ones use a metallic coating that is easily damaged and >looks bad when it is scratched off. You should conside whether removing >it will make matters worse. Some cheaper anti-glare treatments just put a >matte finish on the glass, and might not suffer quite so badly. > >--Bill > > >----- Original Message ----- >From: "Vintage Computer Festival" <vcf(a)siconic.com> >To: "Classic Computers Mailing List" <cctalk(a)classiccmp.org> >Sent: Monday, April 12, 2004 6:43 PM >Subject: Removing physical blemishes from CRT? > > >> >> Although the CRT in question is off-topic, the question is fairly topical: >> >> Is there any way to remove physical blemishes from the face of a CRT? >> I've got a very nice 19" SVGA display that has some scratches on the face. >> They are somewhat invisible unless you happen to be looking at something >> at that part of the screen (lower third, right of center). >> >> Can this be buffed out or ... ? >> >> I hope there's a way to do this because I've been wanting to fix the face >> of my 35" ProScan TV that has the same problem. You barely notice it, but >> it is slightly distracting when you do. >> >> -- >> >> Sellam Ismail Vintage Computer Festival >> ------------------------------------------------------------------------------ >> International Man of Intrigue and Danger http://www.vintage.org >> >> [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] >> [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ] >

20 years, 8 months

CS/80 protocol

by aek＠spies.com

> Has anyone ever scanned this manual? www.bitsavers.org/pdf/hp/disc/5955-3342_cs80-is-pm.pdf

20 years, 8 months

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test-drb April 2004