test-drb

test-drb@ccmp.vtda.org

101090 discussions

by Philip.Belben＠powertech.co.uk

> Sorry, folks. I've been asking around about what a System/74 is. I looked, > and it's really a System/34. Could someone tell me what they were for, how > much they were sold for, what year they are, what they're worth now, etc,etc. > Thanks. I used a System'34 when I worked for IBM in 1985-86. It was old then - late '70s?. I seem to remember about 224K of RAM, possibly 256MB of hard disk. There were a number of posts on this subject on this list in late September - start with the thread on IBM 5120 on 18th. I would be very sad to see such a system vanish - I have a certain affection for it after discovering that I - the newest student - knew more about system/34s than anyone else in the building (this wasn't much - the building housed two marketing units). If you - or someone - do manage to acquire this sys/34, I may have some spare copies of one or two pocket quick reference guides I could send you. I'm pretty sure I've got OCL pocket reference (about 1/2 inch thick) and I may have the Assembler pocket reference. Finally, where is this machine? If it is in England or Wales I might consider acquiring it myself... Philip.

28 years, 5 months

Qume

by yakowenk＠cs.unc.edu

Thanks for the tips! I had found something that I suspected was an optical sensor, but wasn't too sure. And cleaning it out as best I could didn't change anything. Of course, I couldn't get at the thing very well. And, as Tony pointed out, common-sense wiring of the thing would mean the problem couldn't have been just a dirty lens. The good news is that I have a working drive to compare against, so tracing the problem shouldn't be that hard. Maybe this weekend... ] Date: Mon, 10 Nov 1997 10:28:14 +0000 (GMT) ] From: Tony Duell <ard(a)odin.phy.bris.ac.uk> ] Subject: Re: Qume? ] ] On Mon, 10 Nov 1997, Bill Yakowenko wrote: blah, blah, blah... ] Lots of useful bits deleted... ] ] ... It shouldn't be too hard to trace the signal from the ] phototransistor to the Trk00 pin through the logic chips, though. You'd think so. The last time I tried fixing these drives (a couple years ago) I was trying to work backwards from the select LED. Had big problems tracing the circuit because the traces go under chips, and often turn corners under there, so you can't see which ones go where. And I was paranoid about using a continuity-checker for fear of putting voltage someplace where it could do damage. (Was that being excessive?) On the other hand, it should be trivial to measure voltage of the Trk00 signal at the connector, and see if it was getting that far. Divide and conquer - the first secret of debugging. ] ] -tony ] Date: Mon, 10 Nov 1997 09:05:15 -0800 (PST) ] From: Tim Shoppa <shoppa(a)alph02.triumf.ca> ] Subject: Re: Qume? ] ] > ...got service manuals?... ] ] I wish I did. What model do you have? I'm looking for manuals ] for the Qume Datatrack 8 (DSDD, full-height.) They are DT/8's, full height, I think DSDD (a megabyte per floppy). ] But lacking a manual, you still can trace the circuitry by hand; ] it's all SSI TTL, discrete components, and a couple of simple ] analog chips. Yup. Sounds easy. If I wasn't so @#!% paranoid with the meter. ] ] Tim. (shoppa(a)triumf.ca) ] Date: Mon, 10 Nov 1997 17:33:51 +0000 (GMT) ] From: Tony Duell <ard(a)odin.phy.bris.ac.uk> ] Subject: Re: Qume? ] ... ] Still blowing dust out of the sensor can't do any harm, and it's something ] that I'd do first anyway, as it can't help the problem. ] Will try it again, disassembling the thing if necessary to get access. ] ] -tony Thanks guys! Bill.

28 years, 5 months

FWD: FREE to good home: IBM RT 6150s

by jrkeys＠concentric.net

I'm open for it, anyone else ? At 11:14 PM 11/11/97 -0500, you wrote: >I'd like to snag one of those as well. Any chance of doing some sort of coordinated roadtrip with folks meeting in a central place for distribution? > >-- Tony Eros > Digital Equipment Corporation > >---------- >From: John R. Keys Jr.[SMTP:jrkeys@concentric.net] >Sent: Tuesday, November 11, 1997 7:44 PM >To: Discussion re-collecting of classic computers >Subject: Re: FWD: FREE to good home: IBM RT 6150s > >If no one close want them I could drive from Minnesota to your home a >meeting place close to the IL border one of these weekends before snow hits. >John >At 09:16 PM 11/10/97 -0500, you wrote: >>Found the following on comp.sys.ibm.pc.rt >>Anybody near him wanna rescue these machines. >> >>I acquired one about a month ago here in Indiana, along >>with a fairly complete set of books and disks. Mine has >>two ESDI drives (300mb & 110mb) and loaded with >>AIX 2.2. It's a tower case about 24" x 24" x 9". >>If I remember the front panel says System 135. >> >>Mike Thompson >> >>================================================== >>Subject: FREE to good home: IBM RT 6150s >>From: Bill Bradford <mrbill(a)texas.net> >>Date: Sun, Nov 9, 1997 20:52 EST >>Message-id: <645pd8$cbc$1(a)news3.texas.net> >> >>I recently acquired this whole bunch, with the intention of getting >>at least a couple of them reloaded and working; however, I've now >>got plans to move soon, and cant afford to move these machines. I'd >>like to see them go to a good home; so they're free to the first >>person to come pick them up. >> >>System Configurations: (6 systems) >> EAP processors (16mb RAM each) >> dual ESDI hard drives (unknown size) >> SIIG ISA-bus I/O cards >> Graphic cards with 6153 mono monitors >> Ethernet (AUI / 10base2) cards >> ESDI controller cards >> >>The other system only has the HDs and ESDI controller card (no CPU card >> or other cards). Also, one of the above systems is lacking the 1.2mb >>floppy drive; it may be the same system that is lacking a CPU card. >> >>I beleive 3 or 4 of the machines also have tape drive controller >>cards; and I have three external IBM QIC tape drives to go with them. >>I've also got a 15" monochrome IBM monitor that has a DB9 data cable >>connector. >> >>I've got some manuals (User's manual, problem determination guide, and >>2-3 others) in the IBM binders. >> >>Systems are located in Austin, Texas. You'll need a good-sized pickup >>truck or van to haul all of them away. If you're interested, let me know. >>It sucks to let these go, but I cant afford to move them along with my >>other computer equipment. >> >>I can be reached at mrbill(a)texas.net. >> >>-- >>Bill Bradford Sr. Systems Engineer ICQ: 1864511 >>mrbill(a)texas.net Texas Networking, Inc. http://www.texas.net >> >> >> >> >> >> >> >> >> >> > > > >

28 years, 5 months

Encore Computer Infinity 90 System

by yakowenk＠cs.unc.edu

Anybody know what it is? There's one up for grabs in OK, by US govt. auction. Here's a URL; dork around with it to find related info: http://www.drms.dla.mil/drmo/sales/misc/SY3AFB20377002A157-1.html Looks pretty cool, but it's a thousand or two miles from here... Bill.

28 years, 5 months

866 lbs

by yakowenk＠cs.unc.edu

28 years, 5 months

Need Info: Sick PDP-8/f (Diode)

by mcquiggi＠sfu.ca

Hi Allison: > <> Your best bet is the 1N914 silicon diode. The one your replacing is likel > <> not germainium. 1n914s are available from many sources (even radio crap > <> for a few cents a peice. > > Trust me they are not caps, the part someone described would come into > common use about 5-8 years later! To tell if they are diodes an > ohmeter(VOM) and check for resistance one way and open circuit the other. > No resistance in either direction is a cap! I spoke with a fellow who has a print set for the board, he indicated that there are no diodes on the board at all. There are, however, quite a few bypass caps shown on the schematic. My glass devices are all in parallel, each associated to a particular, IC, and are grounded on the other lead. I will have to remove an intact one to check resistance and determine what they are. Thanks for the reply, Kevin -- Kevin McQuiggin VE7ZD mcquiggi(a)sfu.ca

28 years, 5 months

HD Floppies in DD Drives

by sinasohn＠ricochet.net

At 05:45 PM 11/10/97 +0000, you wrote: >> (i.e., not looked for) the software to do it. Can someone recommend a PC >> program to read 5.25" (and 3.5"?) diskettes and make images of them? >There is... look into the simtel site and d/l several of them to try >out. Some are DOS, win3.x and win95. >I prefer to archive all of my disks to that dos based imager. I like DOS best too. I'll check it out. Thanks! --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad sinasohn(a)ricochet.net that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.crl.com/~sinasohn/

28 years, 5 months

System/34

by Zeus334＠aol.com

Sorry, folks. I've been asking around about what a System/74 is. I looked, and it's really a System/34. Could someone tell me what they were for, how much they were sold for, what year they are, what they're worth now, etc,etc. Thanks. By the way, I may be able to get my hands on those unidentified IBM network cards, maybe I can get a couple or two. I'll also look if I can find a hub for them. There are also some PS/2s (not for sale), which used to be attached to the network, which is now ethernet. The PS/2s, however, have a weird cable that looks like the monitor power cable. It has a box on the end, about 1" X 1", that has a ton of electrodes. What is that?

28 years, 5 months

Info On PIMs wanted.

by photze＠batelco.com.bh

OK, so they weren't called that early on. But still, that's what they're called now. What I really want is something small, but powerful. (This classic is going to get USED) I have two schedule programs; MS Schedule+ and a program called Sidekick 2.0, for DOS, made in the early 90's. Compatibility would help. I also want something that's not to hard to find, and I can get for less than a Palm Pilot. (A lot less, if possible.) Thanks for all of your assistance, Tim D. Hotze

28 years, 5 months

Classic "Laptops"

by sinasohn＠ricochet.net

At 08:47 PM 11/10/97 -0500, you wrote: >Now the $64 question. there was a tandy with a 80x4 or 80x8 I do remember >it as it was one of the few with a decent line length. Could that have been the WP-2? (m100-like word processor). I sure hope so, 'cause I could really use the $64... 8^) (Not including later PC laptops of course) --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad sinasohn(a)ricochet.net that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.crl.com/~sinasohn/

28 years, 5 months

Correction (Classic "Laptops")

by Philip.Belben＠powertech.co.uk

Earlier this week I wrote: > I wonder. A few weeks ago I bought for L1 at a car boot sale a device > called a Microscribe 320. (Made by a Welsh company, Microscribe Ltd., > but sold with a British Telecom badge.) This is a sub-notebook (7 in > square) terminal with built in text editor, 32K battery backed RAM and > 40 x 8 character display. Before you all jump on me, yes, I know it was > built circa 1983. It is a very nice machine, the only thing wrong with Further investigation shows that my estimate of 1983 was incorrect. The design of the model 320 dates from around 1985, and mine appears to have been built early in 1988. Just to keep the record straight. Philip.

28 years, 5 months

Classic "Laptops"

by sinasohn＠ricochet.net

At 07:07 PM 11/10/97 -0500, you wrote: >>Actually, the 102 has the same size screen as the 100. Perhaps you're >>thinking of the 200? The 200 is a clamshell design (iirc) with 24x80 >>screen. The 102 was simply a lighter, cheaper-to-make version of the 100. > >Wha? Whoa! Mmmmmm, noper. The 200's screen had only twice the real estate >of the M100 -- it has a 40x16 screen. Yes it was a flip-top which was nice Whups! Sorry. Us po' kids from the big city couldn't never afford none o' dem fancy machineries. 8^) Don't know that I've ever seen a 200 (let alone a 600) in the flesh. One of these days... >(Get this -- the two halves are kept together during transit by *magnets*) Hmmm...doesn't sound like such a great idea, but i guess since it doesn't have a floppy drive... P.S., has there been any messages on the m100 list? I've not gotten any since you signed me up. Thanks! --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad sinasohn(a)ricochet.net that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.crl.com/~sinasohn/

28 years, 5 months

Anyone have a used copy of this book?

by rcini＠email.msn.com

I'm looking for the following book. Does anyone have it? Amazon wants $80+ for it (I think that it's more of a text book than anything else). Thanks! Title: "An Introduction to the Intel Family of Microprocessors: A Hands-on Approach to Utilizing the 8088 Microprocessor" by James L. Antonakos. There are two publishing dates: 1992 and 1996. Rich Cini/WUGNET Charter ClubWin! Member MCP Windows 95/Windows Networking

28 years, 5 months

FWD: FREE to good home: IBM RT 6150s

by Anthony.Eros＠digital.com

I'd like to snag one of those as well. Any chance of doing some sort of coordinated roadtrip with folks meeting in a central place for distribution? -- Tony Eros Digital Equipment Corporation ---------- From: John R. Keys Jr.[SMTP:jrkeys@concentric.net] Sent: Tuesday, November 11, 1997 7:44 PM To: Discussion re-collecting of classic computers Subject: Re: FWD: FREE to good home: IBM RT 6150s If no one close want them I could drive from Minnesota to your home a meeting place close to the IL border one of these weekends before snow hits. John At 09:16 PM 11/10/97 -0500, you wrote: >Found the following on comp.sys.ibm.pc.rt >Anybody near him wanna rescue these machines. > >I acquired one about a month ago here in Indiana, along >with a fairly complete set of books and disks. Mine has >two ESDI drives (300mb & 110mb) and loaded with >AIX 2.2. It's a tower case about 24" x 24" x 9". >If I remember the front panel says System 135. > >Mike Thompson > >================================================== >Subject: FREE to good home: IBM RT 6150s >From: Bill Bradford <mrbill(a)texas.net> >Date: Sun, Nov 9, 1997 20:52 EST >Message-id: <645pd8$cbc$1(a)news3.texas.net> > >I recently acquired this whole bunch, with the intention of getting >at least a couple of them reloaded and working; however, I've now >got plans to move soon, and cant afford to move these machines. I'd >like to see them go to a good home; so they're free to the first >person to come pick them up. > >System Configurations: (6 systems) > EAP processors (16mb RAM each) > dual ESDI hard drives (unknown size) > SIIG ISA-bus I/O cards > Graphic cards with 6153 mono monitors > Ethernet (AUI / 10base2) cards > ESDI controller cards > >The other system only has the HDs and ESDI controller card (no CPU card > or other cards). Also, one of the above systems is lacking the 1.2mb >floppy drive; it may be the same system that is lacking a CPU card. > >I beleive 3 or 4 of the machines also have tape drive controller >cards; and I have three external IBM QIC tape drives to go with them. >I've also got a 15" monochrome IBM monitor that has a DB9 data cable >connector. > >I've got some manuals (User's manual, problem determination guide, and >2-3 others) in the IBM binders. > >Systems are located in Austin, Texas. You'll need a good-sized pickup >truck or van to haul all of them away. If you're interested, let me know. >It sucks to let these go, but I cant afford to move them along with my >other computer equipment. > >I can be reached at mrbill(a)texas.net. > >-- >Bill Bradford Sr. Systems Engineer ICQ: 1864511 >mrbill(a)texas.net Texas Networking, Inc. http://www.texas.net > > > > > > > > > >

28 years, 5 months

Ohio Scientific Challenger series

by SUPRDAVE＠aol.com

Actually, i have a C1P model that is untested at the moment. I also have plenty of documentation which I have loaned out for copying purposes. My particular model is tan with brown sides. david In a message dated 97-11-07 12:32:24 EST, you write: > Whoops.... Try Challenger > > ========================================================= > George L. Rachor george(a)racsys.rt.rain.com > Beaverton, Oregon > > On Fri, 7 Nov 1997, George Rachor wrote: > > > Forgive me as I have just joined the list but it seems that most of the > > computer collections noted online have missed my favorite machine. > > > > My first machine was an Ohio Scientific C2-4p. I do think my most > > efficient programming was done in that 4K of RAM. > > > > I no longer have the original but do have a couple of it's brothers. The > > last of the series was painted white and had introduced color. To > > complete my collection I'd love to find either a C4 or C8 machine complete > > with Disk subsystem and software. I refuse to believe that I've got the > > only ones left. > > > > George Rachor > >

28 years, 5 months

Classic "Laptops"

by allisonp＠world.std.com

<programs) and bank-switched RAM (up to 72K?). I thought the M102 had a <40*8 display, and was simply a slimline M100 with a revised logic board <(used surface mount chips?), etc. < <If that's incorrect, what is the size of the M102 display? It was may memory that the 102 had 80x8. Allison

28 years, 5 months

Need Info: Sick PDP-8/f (Diode)

by mcquiggi＠sfu.ca

Hi All: I am working on a sick M8310 board from a PDP-8/f. I've found and removed a broken diode. It has a glass housing and resembles a germanium variety that I used to see often in my early days. The board has over a dozen diodes, all are the same. The diodes are not numbered but have three coloured bands: Orange, Black, Brown. Not having a suitable reference, any '8 owners out there that can tell me what kind of diode I should replace the broken one with? Thanks, Kevin -- Kevin McQuiggin VE7ZD mcquiggi(a)sfu.ca

28 years, 5 months

OLD hard drives and enclosure need RESCUE!

by kyrrin2＠wizards.net

FW to: ClassicCmp(a)u.washington.edu CC: cyber(a)prismnet.com Can anyone give the hard drives and enclosures this fellow has a good home? The price is certainly right ($10 + shipping). What they are is two enclosures, each with a pair of Miniscribe 4022's (16 MB each, formatted) in them, and I've also been led to understand that the enclosures contain a SCSI-to-MFM bridge board. Please reply directly to the offerer. Thanks! Attachment follows. -=-=- <snip> -=-=- >X-Sender: cyber(a)prismnet.com >X-Mailer: Windows Eudora Pro Version 3.0 (32) >Date: Tue, 11 Nov 1997 15:28:02 -0600 >To: Bruce Lane <kyrrin2(a)wizards.net> >From: Tom Ray <cyber(a)prismnet.com> >Subject: Re: weird SCSI drives > >I'll take you up on that offer. I hate to throw things out. Anybody wants >them, they can have both of them for the cost of shipping via USmail plus >$10. if that's too much, let me know. Only thing is, I don't even know if >the drives work. > >tom > > > >[snip] >> In short, even if their box does contain a SCSI-to-MFM bridge board, >>they're pretty useless for much of anything current. HOWEVER -- do NOT just >>throw them out! Sell them (at no more than $20 for the whole thing) to >>someone who can give them a good home, or donate them to whatever computer >>charity is in your area. >> >> One other alternative is that I'm a member of a mailing list of folks that >>collect "classic" (read: more than 10 years old) hardware/software. Those >>drives might be just what some collector needs to get that old Osborne or >>Altair of theirs going with a good hard drive. I can, if you'd like, >>forward a 'for sale/trade' note to the list for you. If anyone's >>interested, they'd contact you directly. >> >> Best of luck, no matter what happens. >> >> >>-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- >>Bruce Lane, Sysop, The Dragon's Cave BBS (Fidonet 1:343/272) > > -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Sysop, The Dragon's Cave BBS (Fidonet 1:343/272) (Hamateur: WD6EOS) (E-mail: kyrrin2(a)wizards.net) http://www.wizards.net/technoid "Our science can only describe an object, event, or living thing in our own human terms. It cannot, in any way, define any of them..."

28 years, 5 months

FWD: FREE to good home: IBM RT 6150s

by jrkeys＠concentric.net

If no one close want them I could drive from Minnesota to your home a meeting place close to the IL border one of these weekends before snow hits. John At 09:16 PM 11/10/97 -0500, you wrote: >Found the following on comp.sys.ibm.pc.rt >Anybody near him wanna rescue these machines. > >I acquired one about a month ago here in Indiana, along >with a fairly complete set of books and disks. Mine has >two ESDI drives (300mb & 110mb) and loaded with >AIX 2.2. It's a tower case about 24" x 24" x 9". >If I remember the front panel says System 135. > >Mike Thompson > >================================================== >Subject: FREE to good home: IBM RT 6150s >From: Bill Bradford <mrbill(a)texas.net> >Date: Sun, Nov 9, 1997 20:52 EST >Message-id: <645pd8$cbc$1(a)news3.texas.net> > >I recently acquired this whole bunch, with the intention of getting >at least a couple of them reloaded and working; however, I've now >got plans to move soon, and cant afford to move these machines. I'd >like to see them go to a good home; so they're free to the first >person to come pick them up. > >System Configurations: (6 systems) > EAP processors (16mb RAM each) > dual ESDI hard drives (unknown size) > SIIG ISA-bus I/O cards > Graphic cards with 6153 mono monitors > Ethernet (AUI / 10base2) cards > ESDI controller cards > >The other system only has the HDs and ESDI controller card (no CPU card > or other cards). Also, one of the above systems is lacking the 1.2mb >floppy drive; it may be the same system that is lacking a CPU card. > >I beleive 3 or 4 of the machines also have tape drive controller >cards; and I have three external IBM QIC tape drives to go with them. >I've also got a 15" monochrome IBM monitor that has a DB9 data cable >connector. > >I've got some manuals (User's manual, problem determination guide, and >2-3 others) in the IBM binders. > >Systems are located in Austin, Texas. You'll need a good-sized pickup >truck or van to haul all of them away. If you're interested, let me know. >It sucks to let these go, but I cant afford to move them along with my >other computer equipment. > >I can be reached at mrbill(a)texas.net. > >-- >Bill Bradford Sr. Systems Engineer ICQ: 1864511 >mrbill(a)texas.net Texas Networking, Inc. http://www.texas.net > > > > > > > > > >

28 years, 5 months

Varian 620/i information and software wanted

by hansp＠columbia.digiweb.com

I spent a most enjoyable day today writing an emulator for the varian 620/i processor. I have a few questions about the handling of the overflow flag if anyone can help. Also does anyone have any software for the beastie? What happend to the Varian computer division? Regards, -- Hans B. Pufal : <mailto:hansp@digiweb.com> Comprehensive Computer Catalogue : <http://www.digiweb.com/~hansp/ccc/> _-_-__-___--_-____-_--_-_-____--_---_-_---_--__--_--_--____---_--_--__--_

28 years, 5 months

HD Floppies in DD Drives

by sinasohn＠ricochet.net

At 08:43 AM 11/9/97 -0600, you wrote: >Here's a silly question, but one I've never understood: Not that silly; but I'm afraid I don't recall the answer. 8^) >Since some of the software for my "old" (first generation PC) computers >is on 5 1/4" disks of dubious condition, I would like to make copies I think the best way to do this is to make disk images. I know the Mac can do this with Mac disks, and I'm sure the PC can too, but I've not found (i.e., not looked for) the software to do it. Can someone recommend a PC program to read 5.25" (and 3.5"?) diskettes and make images of them? This, I think, is where syquest drives (and similar) come in *very* handy. You can store the images on a removeable disk and not bother taking up fixed disk space for them. --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad sinasohn(a)ricochet.net that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.crl.com/~sinasohn/

28 years, 5 months

11/34A PSU: Here we go again...

by dseagrav＠bsdserver.tek-star.net

Replaced the 1.5A breaker with a 20 (One of the origionals) Now I have a 15, and a 20. The other origional one is toast, the insides were banged up. I reglued the handle to the 20. About to try this drill again... Got it! It works! Halts with BUS ERR 'cause I removed the RX controller! Now to take it in the next room and attach devices...

28 years, 5 months

34A Power Trouble. I calmed down, here's the facts...

by dseagrav＠bsdserver.tek-star.net

Alright. It wasn't powering on because I left J3 unplugged. When I plug in J5 (4-wire plug on the line power module) everything goes. I can plug in everything else, and all I get is a relay click. I found the easy way to play with these plugs is to set the BA11 upside-down on the table, and unmount the PSU so I can get access. What is J5 for and what voltages are supposed to be there? I have an oscope here, and I may be able to dig out a VOM... It's obvious I switched wires or something in the line power module. Visual inspection shows nothing obviously wrong...

28 years, 5 months

apple rgb monitor problems

by pb14＠leicester.ac.uk

On 10 Nov 97 at 18:15, Zane H. Healy wrote: > >This really sounds like the monitor for an Apple IIgs. I have three > >such monitors. (One isn't in very good shape and the other two are > >in use.) I think there are some Macs that can use this monitor, but I'm > >not positive. Make sure you are using analog RGB, not digital. No standard Macintosh can use the Apple IIgs RGB monitor. The video port on the Mac provides a signal with a horizontal scan rate of about 35kHz -- this figure is for the Mac II; newer Macs may be higher. The Apple IIgs monitor and system video port use a scan rate of about 15.75kHz. Both IIgs and Mac systems provide analog signals. > In my opinion the LC would have been the most likely to be able to use the > monitor. The LC and IIsi were the first (non compact) Macs to have video on the main board and folks were pleased to note that, using the right cable, it was possible to hook up to a standard grotty PC VGA display. The pinouts are available in Apple's Tech Info library. > I'd heard rumors that it would, but when you think about the fact > that they'll all work with a Multisync monitor, doesn't really make sense. Lots of older computers will work with the early Multisync monitors. I've used the same Multisync on my IIgs and on a PC. I've run out of D-connectors temporarily; when I've been shopping I'll sort out the cables to attach the monitor to my (digital output) Apple III and to an LC-series Mac. Phil ************************************************************** Phil Beesley -- Computer Officer -- Distributed Systems Suppport University of Leicester Tel (0)116 252-2231 E-Mail pb14(a)le.ac.uk

28 years, 5 months

34A power problems

by dseagrav＠bsdserver.tek-star.net

Okay, I narrowed it down some: I unplugged everything except J3, the power switch. I plugged in that edge connector to the line module, OK. Power on: loud click, but the breakers held. Next, I plugged in J5. Power on: *CRACK!* Both breakers go. The breaker on the powerstrip is holding though. What is P5 for?

28 years, 5 months

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test-drb