test-drb

test-drb@ccmp.vtda.org

101090 discussions

by fernande＠internet1.net

Okay, How do I re-install the double LED power indicator? It doesn't have a screw holding it, it doesn't seem to push into anything, and I have a clear piece of plastic that I don't have a clue about. How does this thing stay in place? When I took it apart I think it pulled out of the top part of the case. Chad Fernandez Michigan, USA

23 years, 10 months

[OT] Need 7 segment displays...

by Robert_Feldman＠jdedwards.com

http://www.allelectronics.com/matrix/7_Segment_Displays.html 0.3" character height, red or green. -----Original Message----- From: Jim Kearney [mailto:jim@jkearney.com] Sent: Monday, June 03, 2002 1:09 PM To: cctalk(a)classiccmp.org Subject: Re: [OT] Need 7 segment displays... >From: "Gene Buckle" <geneb(a)deltasoft.com> > I'm trying to find some VERY small 7 segment displays. I need a part > that's small enough that 5 digits will fit into an inch long area. I'm > not having any luck and I'm hoping someone here might know where I can > find them. I don't know where to find them, but LED calculators in the 70's sometimes used 4 digit modules with a DIP-16 form factor. They looked like 4 bubbles on top of a lead frame. That would make them about 3/4" for four; but I'm not sure how you'd get 5 unless you could also find a 'single'. Not very helpful, I know, but perhaps a step in the right direction...

23 years, 10 months

what the heck is this? Apple II Adaptive Firmware Card

by rigdonj＠cfl.rr.com

Hi, I recently picked up a card and external box for the Apple II. Both say Don Johnson Development Equipment Inc Adaptive Firmware Card and the box also says I/O Box. The box connects to the card via two short ribbon cables and has a 36 pin male Centronics style connector, two banana jack sockets, rocker switch and a LED on it. I picked this up in Topeka, does anyone know what it is? Joe

23 years, 10 months

locating shorts Re: HP ScanJet ADF

by dwightk.elvey＠amd.com

>From: Joe <rigdonj(a)cfl.rr.com> > > >>Probably a shorted decoupling capacitor (if it's a 'dead short' or close >>to one). I have been known to carefully cut power traces to find out >>which section is shorted, and then home in on the problem. > > That's the way that I've traced shorts down. However since then I've bought a HP Current probe, they're supposed to be able to trace a short down the correct path. I've never had a need for it since I bought it so I dont know how well it works. Has anyone had any experience using one? Hi I've used a current probe a number of years ago and found it worked OK for trace short, when they were accessable on the surface. I've since found a method that works fine for me, using standard bench top items. You need a 4 or 5 voltmeter that has at least a 200 uV range and a current limiting power supply. What you do is to place about a 1 amp current from end to end of the curcuit that is shorted to another curcuit. Do not place the 1 amp through the short. This will generally create a 20-100 uV drop across the curcuit. Now, clip one lead of the meter on the other curcuit ( the one that this curcuit is shorted to ). With the remaining lead, trace along the curcuit with the current flowing through it. When you get to the point where the short is, the voltage will be zero. On either side, the voltage will be plus or minus, telling you which way to go. Check the meter regularly for offset by connecting both meter leads together. This will help you especially when you get close. For curcuits with branches, you may need to move where you put your end to end current to follow another branch. This method also works for power planes. Say there is a bypass cap that is shorted someplace. Place the current source on opposite corners of the board and trace until you have a line ( usually curved ) across the board that measure zero ( I usually tape a piece of string along this line ). Move the current source to the other corners. Again, find the line. Where the lines cross, you'll find the short. There are variations of this method that I've used to find multiple shorts. Dwight

23 years, 10 months

sorce of computer recyclers

by DAW＠yalepress3.unipress.yale.edu

> From: Gary Hildebrand > > I just came acrtoss this ---- there might be some good sources in here > for goodies. My gold mine in Topeka is part of this list, so I'm > betting on at least a couple more . . . . . > > > http://www.recycle.net/computer/used/index.html > > Seems like a decent resource... Did you happen to notice the Titan Trailers ad/link at the bottm of the page? ;) -- --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- (203) 432-0953 --- ICQ # - 905818 Mac OS X 10.1 - Darwin Kernel Version 5 Running since 01/22/2002 without a crash

23 years, 10 months

Airport screening (was Re: KC/Topeka prowling with Mr. Rigdon)

by acme_ent＠bellsouth.net

> From: Sellam Ismail <foo(a)siconic.com> > Whoever tells you the checks are "random" and not based on ethnicity or > appearance is just trying to be PC. I'm sure there is a bit of randomness > involved, but that's for the non-Arab, non-Muslim flying contingent. > There's only been one time out of perhaps ten where I didn't have to go > through the extra pre-boarding check before a flight. No offense, Sellam, but this only seems natural to me. I'm sure the airport security checks have gotten a bit tiresome, but we recently were attacked by Arab Muslims, and several thousand people died. If we'd been attacked by Irishmen I'm sure we'd be taking a harder look at them, too. Glen 0/0

23 years, 10 months

drive "hood" parts[was: RE: DEC SDI drives]

by xds_sigma7＠hotmail.com

Come to think of it, the gas shocks do somewhat remind me of the ones on the rear gate of my subaru station wagon... or on the hood of a BMW... hmm... Will J _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp.

23 years, 10 months

sorce of computer recyclers

by ghldbrd＠ccp.com

I just came acrtoss this ---- there might be some good sources in here for goodies. My gold mine in Topeka is part of this list, so I'm betting on at least a couple more . . . . . http://www.recycle.net/computer/used/index.html Gary Hildebrand St. Joseph, MO

23 years, 10 months

drive "hood" parts[was: RE: DEC SDI drives]

by DAW＠yalepress3.unipress.yale.edu

> From: Andreas Freiherr > > Gunther Schadow wrote: > > > > ... Then you can open the hood just like > > in my car, check the alternator belt and I just haven't found the > > oil dip stick yet :-). > > My trouble with it is that the "hood" always bounces back on the rear > part of my head, because the pressurized gas retainers have lost their > magic smoke in the cause of the years. I am convinced it's impossible > and perhaps even dangerous to repair (i.e., to repressurize) them, but > is there a known good source for spare parts? > > Without looking: are these parts the same type in a RA80 and in a RA82? > > I don't want headaches every time I adjust belt tension... > > -- > (continuing the automobile analogy...) How big are the gas shocks? Anything like the ones that hold up a hatchback in car? Auto part places like JCWhitney.com sell replacements... -- --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- (203) 432-0953 --- ICQ # - 905818 Mac OS X 10.1 - Darwin Kernel Version 5 Running since 01/22/2002 without a crash

23 years, 10 months

Diagnosing a non-working Mac Performa 476?

by vaxzilla＠jarai.org

I've acquired a non-working Mac Performa 476. Unfortunately, I don't have any other Mac gear to help me with the diagnosis. I've the Performa 476 itself, which may or may not be working; I've got two Macintosh Color Displays (M1212) which may or may not be working, and one spare Performa 475 motherboard purchased from eBay. It was advertised as pulled from a working system--but I've no way to verify this. The seller was a reputable one, so I'm inclined to believe it's a good board. The 475 motherboard is identical to that of the 475. The difference between the two models being that the 476 shipped with a larger internal HD. When I power up the system, with monitor attached, the internal cooling fan spins up, the hard drive spins up (and sounds normal), and the machine chimes what I seem to recall as being the regular start up sound for this era of Mac. However, the display remains dark. If I power off the Mac, leaving the monitor on, the monitor makes a light static/crackle noise; it's the sort of sound I normally associate with a monitor that's lost the video input signal. I've played with the brightness and contrast controls without any success. If I switch the other monitor, the behavior is the same. If I switch >from the orginal motherboard to the one I purchased on eBay, the behavior is the same. It's possible both monitors are bad and/or both motherboards are bad. I don't have a multimeter to verify that the voltages coming out of the PS are correct. Nor do I know that the hard drive is functional--but I'd assume that nothing needs to be loaded from the HD in order to get the display to come up. I'm a bit puzzled, and wondering if anyone here with insight on these Macs and their displays can give me any additional pointers. -brian.

23 years, 10 months

Osborne 1 Video Adapter? (was:RE: IBM 026 Printing Card Punch )

by Robert_Feldman＠jdedwards.com

AFIK, OCC never sold a composite adaptor themselves. The one I had was a Monadapt by JMM (?). I also have a copy of the Osborne 1 Technical Manual (Thom Hogan and Mike Iannamico, copyright 1982). It describes the video circuit, with schematics for the edge connector and brightness/comtrast pots, but it does not have a schematic for a composite adaptor. Bob -----Original Message----- From: Joe [mailto:rigdonj@cfl.rr.com] Sent: Saturday, June 01, 2002 7:15 AM To: cctalk(a)classiccmp.org; acme_ent(a)bellsouth.net Subject: Re: Osborne 1 Video Adapter? (was:RE: IBM 026 Printing Card Punch) Glen, Didn't I give you the Ozzy Technical manual? I think they describe their version in there and I think they even include a schematic. IIRC there's nothing in it except for two connectors and a transistor. I believe it replaces the "Do Not Remove" plug on the front of the Ozzy. Joe At 01:02 AM 5/30/02 -0400, you wrote: >> From: Feldman, Robert <Robert_Feldman(a)jdedwards.com> > >> I was looking through the Alltronics listings and noticed a TTL-Composite >> video adaptor (http://www.alltronics.com/computer_miscellaneous.htm , >> #92C024) that looks like the adaptor I have for my Osborne 1! > >Robert -- > >Please tell me more about this adapter. I like my Oz 1 but hate the >screen. Where does it connect to the Oz? > >Glen >0/0 > >

23 years, 10 months

don't hook no RA90 to the internal power plug on the VAX6000

by gunther＠aurora.regenstrief.org

Hi, I think I haven't heard from Geoff of Oz for a while, are you still around? Came to think about Geoff because I have now blown two fuses of VAX 6000's internal 110V power hookups (the main power box has three what looks like standard 110V receptacles.) But not all of them are equal, so it seems. The one that's not reachable from the outside seems to be protected by a low-rated fuse. I suppose now that this is where the backup battery is to be hooked up an nothing else. I tried to drive an RA92 from there and it always burned the fuse when the drive spins up. I'm releaved now because initially I thought I might have destroyed the drive (some inner short because of dust and dirt.) But it's just that fuse. Too bad that I can't power the second external receptacle. It's this weird 3-phase conversion issue where you have to use the phase that connects to this internal receptacle but not both of those that connect to the two external receptacles. How did you, Geoff, hook up both of your RA9x down in your VAX6400? thanks, -Gunther -- Gunther Schadow, M.D., Ph.D. gschadow(a)regenstrief.org Medical Information Scientist Regenstrief Institute for Health Care Adjunct Assistant Professor Indiana University School of Medicine tel:1(317)630-7960 http://aurora.regenstrief.org

23 years, 10 months

RA90 not releasing session on port B? How can I reset the drive?

by gunther＠aurora.regenstrief.org

Hi, I cleaned up my laundry/computerroom real nice. The two VAX6450s now want to talk to each other (and not just stand side-by-side :-). I have the star coupler attached to the wall, at a nice angle under the staircase, which makes it really nice to connect the CI cables. Can't wait to do IP over CI between the two. So, I copied my Ultrix disk's / and /usr partition to another drive and having connected the second VAX6k to that other drive on SDI port "B" I could actually boot it with the generic kernel and so forth. Then I found I was missing something, so I wanted to get back to the first VAX and mount that drive again to add something to it. But fron then on every attempt to mount or write to the drive from port "A" causes the WRITE PROTECT LED to lite up quickly and then the OS comes back with an I/O error on writes and a write restricted error on mounts. I can't even do mount -r that drive. I tried shutting down, spinning down, resetting, powering off and everything I just can't get the drive responding to write requests from port A any more. What is the magic here? These drives seem to have a memory that lasts even when powered off. Once I turned off the main breaker before the drives were spun down. It does sound ugly, but they all work nicely still. And I noticed that they remembered the "R" status when I powered them on again. So, how can that memory really be cleared? thanks for your help, -Gunther -- Gunther Schadow, M.D., Ph.D. gschadow(a)regenstrief.org Medical Information Scientist Regenstrief Institute for Health Care Adjunct Assistant Professor Indiana University School of Medicine tel:1(317)630-7960 http://aurora.regenstrief.org

23 years, 10 months

Performa 476 Problem

by appleone＠mac.com

Brian: How about the motherboard backup battery? I've seen a couple of Macs that wouldn't display that worked fine after I replaced the battery. Check the voltage on 'em. Of course, another known working monitor would be nice for testing too. And even with no hard drive you would at least get the "flashing question mark disk" icon. Steve

23 years, 10 months

Diagnosing a non-working Mac Performa 476?

by Innfogra＠aol.com

Not being an Apple person this might not be germane. I have found differences with the cables that attach the monitor to the computer. I had one cable that plugged in but did not work. It was lighter in weight and IIRC was missing a pin. I think it worked on an IIGS but not on a LCIII I was testing. I needed the heavierweight video cable with no missing pins to get the LCIII to come up. Both came up in color but needed different cables. Don't know why. As I said I am not an Apple person, although I would love a G3 or G4 to play with. Paxton Astoria, OR

23 years, 10 months

dec parts available

by fernande＠internet1.net

2- M7493-PA R440F Q R449F (S-box) to SCSI Converter (free plus shipping) 1- fan drawer from R400X DSSI expansion chassis. I think this is the same as any other BA440 style case, right? (15.00 plus shipping) Please contact me off list. Chad Fernandez Michigan, USA

23 years, 10 months

the haunted VAX6000 has been exorcized!

by gunther＠aurora.regenstrief.org

Yes! It was very much like Antonio suggested, a good deal of previously strangely behaving XBIA and XBIB boards were still working fine given the proper environment. I replaced the backplanes/cages for both XMI and VAXBI. I figured if nothing else, the set I put so neatly into boxes last year would be less exposed to dust and grime over the last year, and I did remember that one of the vaxen, i.e., this particular one did behave strangely even last year. Then step by step debugging with a little bit of board reseating and everything works now. Yeah! This is my second VAX6450 going online. Did I mention that one of them is now a VAXvector 6450 (with one vector processor right now because I still don't have more than one of the little cables.) It's going to be a VAXvector 6440 V2 (BTW: how was the number of vector CPUs officially counted?) and the other will be a VAX 6460. Both of them have 512 MB memory, one has a KDM70 with an SA600 with 8 RA90s the other now has the KDB50 with one RA90 and one RA92 in the "basement" of it's cabinet. I'm about to connecting the second VAX to the star coupler. And then all I need to do is fix the HSC90 that still gives me a k.ci error with status 111 (what the heck does that mean?) Then the HSC90 will plug in the port "B" of all the RA90s and RA92 and uh yes, there are also the RA81 and RA82, which I can't wait to actually use. My basement is going to be cleaned out now. It looks nice with two VAX 6000 and an SA600 shoulder to shoulder. Ah, yes, now I have an XMI and a VAXBI backplane cage spare. I will get rid of it one way or the other. If you want either or both, let me know. They are free for the taking or shipping. I'm sure that only one of them is actually defect AND I'm sure the defect could be fixed (I'd probably go with round in the dishwasher or so.) If you need parts from one, that's fine too. To know what's on them go to my VAX 6000 anatomy page. If I don't hear by soon, I will screw off all the parts and let the bulky stuff hit the dumpster. regards -Gunther Here is the transcript of a working VAX 6450 selftesting: >>> INIT c123456789 0123456789 0123456789 01234567# F E D C B A 9 8 7 6 5 4 3 2 1 0 NODE # A A . . M M M M . P P P P P TYP o o . . + + + + . + + + + + STF . . . . . . . . . E E E E B BPD . . . . . . . . . + + + + + ETF . . . . . . . . . E E E E B BPD . . . . . . . . . . + . + . + . XBI D + . . . . . . . . . + . . . . + . XBI E + . . . . A4 A3 A2 A1 . . . . . . ILV . . . . 128 128 128 128 . . . . . . 512 Mb ROM0 = V3.00 ROM1 = V3.00 EEPROM = 2.03/3.07 SN = AG94408846 >>> SHOW ALL Type Rev 1+ KA64A (8082) 000A 2+ KA64A (8082) 000C 3+ KA64A (8082) 000C 4+ KA64A (8082) 000A 5+ KA64A (8082) 000B 7+ MS65A (4001) 0084 8+ MS65A (4001) 0084 9+ MS65A (4001) 0084 A+ MS65A (4001) 0084 D+ DWMBA/A (2001) 0002 E+ DWMBA/A (2001) 0002 XBI D 1+ DWMBA/B (2107) 000A 3+ KDB50 (010E) 142C 5+ DEBNI (0118) 0300 XBI E 1+ DWMBA/B (2107) 000A 6+ TBK70 (410B) 0305 Current Primary: 1 /NOENABLED- /NOVECTOR_ENABLED- /NOPRIMARY- F E D C B A 9 8 7 6 5 4 3 2 1 0 NODE # . . . . A4 A3 A2 A1 . . . . . . ILV . . . . 128 128 128 128 . . . . . . 512 Mb /INTERLEAVE:DEFAULT /SCOPE /SPEED: 9600 /NOBREAK English XMI:D BI:5 08-00-2B-0B-23-AE DEFAULT /XMI:E /BI:6 CSA1 TAPE /XMI:E /BI:6 CSA1 ETH0 /XMI:D /BI:6 ET0 >>> -- Gunther Schadow, M.D., Ph.D. gschadow(a)regenstrief.org Medical Information Scientist Regenstrief Institute for Health Care Adjunct Assistant Professor Indiana University School of Medicine tel:1(317)630-7960 http://aurora.regenstrief.org

23 years, 10 months

Overtemp

by jpl15＠panix.com

There are many things one can do with a non-functioning Next Cube. The following URL was generated by someone who, a) apparently has found the most obsessive ultimate activity, and, b) has way, way, way too much time on his mind. IMHO, anyway... http://simson.net/photos/hacks/cubefire.html Ya jus' cain't make this-here shit up, I'm a-tellin ya! Cheers John

23 years, 10 months

[CCTECH] Cards to Identify

by Innfogra＠aol.com

Finally read the description on the large cards. With 3 50 pin connectors I think it is a Bridge of some sort. The 82586 is intel's intelligent Ethernet controller so I am sure the 15 pin is an AIU Ethernet connector. Paxton Astoria, OR

23 years, 10 months

HP calcualteor power adapter

by hansp＠aconit.org

A little while ago I seem to remember someone in the UK saying they needed a power adapter for one of the original HP calculators - HP35/45/55 etc. I have one if that person would contact me off list.... -- hbp

23 years, 10 months

CP/M TCP/IP (was Re: CP/M coding question)

by dwightk.elvey＠amd.com

>From: "Pat Finnegan" <pat(a)purdueriots.com> > >On Thu, 30 May 2002, Glen Goodwin wrote: > >> > From: Pat Finnegan <pat(a)purdueriots.com> >> >> > What I'm looking to do is provide a (small) SLIP or PPP based TCP/IP >> stack >> > for a machine that will stay resident and can be used by CP/M 2.2 [or >> > perhaps MP/M II] user programs. >> >> Pat -- >> >> I would be extremely interested to learn of your progress in this area. >> Please keep us posted, or contact me off-list. > >I'm starting to have some second thoughts about how I'm going to do this. >I'm considering an external 'black box' that will connect to a PPP server >on one end and have a RS-232 connection on the other that will provide >something like a serialized verion of BSD's sockets. I'm also thinking >about implementing a raw tcp port that would connect to an extra RS-232 >port [optionally password protected] that could be used to attach to the >system's console, and replicate it on the other end of the network. > >Right now I'm looking at either a Z80 with 32k of ram, 16k of flash, a CTC >and one or two DUARTS, or a uC that'll provide as much of that in hardware >as possible. PICs are nice, but generally seem to have too little memory >for TX/RX buffers, and Basic stamps are too slow. (and who wants to >program in BASIC anyways?) > >Any suggestions on a good uC to use? > >-- Pat > > Hi Although, I don't care for BASIC, there is a company that is about to release a stamp like board with a BASIC that is benching at 500 to 1500 times faster than the original PIC stamps. It gets it's speed from having a better memory model. You don't have to program in BASIC with it. In fact, the BASIC is written in Forth that underlies the BASIC. From what I'm told, you can access the Forth. If Forth isn't your cup of tea, most all Forths have been able to access the raw assembly level without using yet another tool. The processor is based on the 8051 instruction set but it one or two clocks per instruction instead of 12 to one. Of course, it runs in the tens of megahertz. Mixed assembly and Forth often makes a good optimization of speed and memeory size. Later Dwight

23 years, 10 months

it's networked! (my VAXstation)

by carlos_murillo＠epm.net.co

Yeeeeehah! I devoted maybe four hours today and yesterday to reading more about VMS, paks, UCX vs. TCPIP, DECNet plus and such stuff, and I was finally able (after a two year hiatus) to install the TCPIP product more or less correctly in my Vaxstation 4000/60. It seems to work and I could finally ftp the complete hobbyst paks to it (before I had to do each by hand). I get errors on startup about some proxy database. I think that I still have some configuration errors (especially in the DECnet plus side, but then again, I won't be using it to communicate with anything else DECnet), but the basic stuff seems to run (telnet and ftp clients and servers). Question: where can I get ssh for vax openvms 7.2? Question: can somebody tell me what are the step by step commands/dcl incantations to create a user with reasonable privileges? (I don;t want to login remotely to the system account). And, does the concept of a user home directory exist in vms? Where does one normally create user directories? Regards, carlos. -------------------------------------------------------------- Carlos E. Murillo-Sanchez carlos_murillo(a)nospammers.ieee.org

23 years, 10 months

Apple II cards from Topeka

by acme_ent＠bellsouth.net

> From: Tarsi <tarsi(a)binhost.com> > 93 computers at my house now and counting.....:) Have you considered seeking professional help? ;>) Glen 0/0

23 years, 10 months

Osborne 1 Video Adapter? (was:RE: IBM 026 Printing Card Punch)

by acme_ent＠bellsouth.net

> From: Feldman, Robert <Robert_Feldman(a)jdedwards.com> > I was looking through the Alltronics listings and noticed a TTL-Composite > video adaptor (http://www.alltronics.com/computer_miscellaneous.htm , > #92C024) that looks like the adaptor I have for my Osborne 1! Robert -- Please tell me more about this adapter. I like my Oz 1 but hate the screen. Where does it connect to the Oz? Glen 0/0

23 years, 10 months

KC/Topeka prowling with Mr. Rigdon

by acme_ent＠bellsouth.net

> From: Gary Hildebrand <ghldbrd(a)ccp.com> > Had a find time killing the day. My thanks to Joe and his sharp eyes; > what he found really made my day. You can always count on Joe to sniff out the good stuff. He's got a nose like a bloodhound. The rest of his face doesn't look so good, either. (Sorry, Joe, I couldn't resist that opportunity ;>) Actually, he's even found interesting stuff in junk piles *in my own shop* that I couldn't identify. Glen 0/0

23 years, 10 months

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test-drb