test-drb January 2002

test-drb@ccmp.vtda.org

303 participants
1201 discussions

by pete＠dunnington.u-net.com

On Jan 15, 9:10, Eric J. Korpela wrote: > > > What color is Araldite? Is it a two-part black-and-white epoxy > > > like "JB Weld" that sets as grey? Or is it clear to amber, > > > like those that come in dual syringes? > > > > It's clear to amber, and comes in a couple of packages, either two tubes > > or dual syringes. > > There must be multiple varieties. The varity I'm familiar with is > definitely grey and is mixed 10 parts base to 4 parts hardener. Nope, original Araldite (sets in about an hour and cures fully in 8-24 hours, faster at higher temperatures) and Araldite Rapid (sets in 5-10 minutes, and cures in about an hour) are both clear-to-amber epoxy resins. Both are mixed 50:50; both come as light amber resin and transparent bluish hardener. The company does make other products, including Aerolite, and some other epoxies, perhaps what you've seen is one of those. -- Pete Peter Turnbull Network Manager University of York

22 years, 6 months

classiccmp-digest V1 #833

by mcguire＠neurotica.com

On January 15, R. D. Davis wrote: > Eh? Rare? Not from what I've seen. Quite a few of the old Sun > workstations used the 68010 as the CPU, for example, and I've seen > 80186 chips used as CPUs used in many devices (not necessarily > computers per se, but used in various computer boards and terminal > servers, etc.). Of course, perhaps we should just let the chip > collectors think that they're rare, and perhaps they'll just be > content with collecting a few of them and leaving the rest alone to > function in working equipment. :-) Indeed, 80186 chips can be found even on relatively recent Seagate SCSI hard drives. -Dave -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf

22 years, 6 months

More DELLness & TRON! :D

by DAW＠yalepress3.unipress.yale.edu

Well, it was black and white in the movie anyway, right? --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 905818 ! -----Original Message----- ! From: Bryan Pope [mailto:bpope@wordstock.com] ! Sent: Tuesday, January 15, 2002 3:20 PM ! To: classiccmp(a)classiccmp.org ! Subject: Re: More DELLness & TRON! :D ! ! ! > ! > ! From: Bryan Pope [mailto:bpope@wordstock.com] ! > ! ! > ! ! > ! MS-DOS.. Or a DOS shell in Windows 98 SE and lower (Windows ! > ! XP and 2000 ! > ! *SUCK* at running programs that use graphics) IIRC, it is ! > ! compilied under ! > ! 32-bit protected mode. ! > ! ! > ! Bryan ! > ! > Heh heh heh... Yeah, could you send a copy to me? It'd be a neat ! > thing for the collection. Too bad you don't have the source ! code anymore. ! > Picture it running on a 21" b&w monitor hooked to a VAX... ! > ! ! Sure! Once I get home from work I will forward you a copy. ! :) There is ! colour in it, but the X' and O's are white and the background ! is fairly dark. ! ! Cheers, ! ! Bryan !

22 years, 6 months

Prophylactic replacement of electrolytic capacitors?

by pete＠dunnington.u-net.com

On Jan 14, 10:01, John Allain wrote: > > The best way to check those #$%#$%^# caps is to use an ESR meter. And > > only then should yo buckshot them. And replace them with good grade > > Seems like a simple enough question: how do you test them? > I don't have an ESR meter, should I get one? No other way? The quick and dirty test is to use an *analogue* meter (what Americans used to call a VOM, not a VTVM) on the ohms range across the capacitor. The needle should flick violently across (indicating zero or low resistance) and then fall quickly (at first) as the capacitor charges (and the current drops). Ideally it should end up showing virtually infinite resistance. It needs a bit of experience, though, as the violence of the flick depends on ESR and capacitance, and there tends to be some leakage in an electrolytic so the final reading is often not zero current. It may be worth trying if you have a known-good capacitor of similar voltage and capacitance to compare. A digital multimeter is rarely any use for this, though. The response of the meter is just too slow; by the time it's shown the first reading the event is all but over. Also most DMMs use very low voltages and currents, not enough to give a big electrolytic a good fright. -- Pete Peter Turnbull Network Manager University of York

22 years, 6 months

classiccmp-digest V1 #833

by rpbell＠earthlink.net

Some wrote: >> IIRC, the general rule of thumb is: >> 8086 -- 68000 >> 80286 -- 68020 >> 80386 -- 68030 >> 80486 -- 68040 > >Yes, and the 80186 -- 68010. >Both existed but were not popular in many systems. Both >equally quite rare in that regard. > >Anyway, I added them for completeness. I've heard the following, to add to that list: Pentium/Pentium II -- PowerPC Pentium III -- PowerPC G3 Pentium IV -- PowerPC G4 FWIW I'd bet a buck there's a LOT of disagreement on the list. Unfortunately, there's just no adequate way to compare the full range of recent and current mprocessors by looking for strict equivalencies. It would be interesting to see a chart covering the relative relationships of processors in PeeCees, Macs, and Minis (including Sun, SGI, RS/6000, etc.). I had to chuckle at the poor dood who was lamenting his $10K investment in a IIcx; most of us cry to think about what we paid for our old Morrow or original IBM PC. What about those poor cats who paid huge $$ for Lisa or other similar, short-lived concept/production models? rb ================= R. P. Bell Email rpbell(a)earthlink.net

22 years, 6 months

68010 (was Re: Mac IIci)

by pete＠dunnington.u-net.com

On Jan 14, 14:56, Bruce Robertson wrote: > Yes, I seem to remember that with the 68000, there was an interaction with > the Bus Fault signal that prevented you from attaching any kind of memory > management unit. Something to do with what state got saved on the stack; > I don't remember the exact details Oops, I forgot about that. You're right; the 68010 saves slightly more state on the stack than the early 68000. I have a feeling that was fixed in later 68000; some traps save more state than others. You can't get 68010s any more, unless you can find old stock somewhere :-( You can still get 68000s and 68020s. -- Pete Peter Turnbull Network Manager University of York

22 years, 6 months

More DELLness & TRON! :D

by DAW＠yalepress3.unipress.yale.edu

! From: Bryan Pope [mailto:bpope@wordstock.com] ! ! ! MS-DOS.. Or a DOS shell in Windows 98 SE and lower (Windows ! XP and 2000 ! *SUCK* at running programs that use graphics) IIRC, it is ! compilied under ! 32-bit protected mode. ! ! Bryan Heh heh heh... Yeah, could you send a copy to me? It'd be a neat thing for the collection. Too bad you don't have the source code anymore. Picture it running on a 21" b&w monitor hooked to a VAX... --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 905818

22 years, 6 months

More DELLness & TRON! :D

by mythtech＠Mac.com

> No, I haven't bought it... First I would need the DVD player... ;) I would >like a region-free DVD player, but now they are creating DVD's that are >unplayable on region-free DVD players. :-( A friend of mine bought an Apex that can change regions via a menu option. Supposed to be unlimited changes (it isn't a selling "feature" as it is in a "hidden menu" if I have the story right). It also converts PAL to NTSC on the fly (and does a decent job from what he has said). I think his only complaint is that on some VCDs the audio gets out of synch. Homemade VCDs or cheap VCDs being the biggest offenders. I can ask him what model it is if you are interested. -chris <http://www.mythtech.net>

22 years, 6 months

Wire Recorder

by csmith＠amdocs.com

> -----Original Message----- > From: Penna2(a)aol.com [mailto:Penna2@aol.com] > it.Unfortunatly also a few breaks and I have not yet found a > way of splicing > wire! I can see why they went to tape. Solder? :) Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

22 years, 6 months

Ohic Scientific new additions to the collection

by SUPRDAVE＠aol.com

Ive been corresponding with a professor from florida who saw my collection, specifically the OSI C1P I had. turns out he had 4 of them used for static demonstrations and they finally arrived to me. 3 of them are C1P models just like the one I had and the last one has a plastic case and looks like an apple //e. they all have modifications like little dials, connectors and switches of which I will find out what they do. too bad I didnt get any disk drives with them.

22 years, 6 months

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test-drb January 2002