test-drb August 1999

test-drb@ccmp.vtda.org

161 participants
565 discussions

Wait! There's more including MS-DOS 1.25!!!! was Sanyo MBC-550 (Yuck!) software available

by rigdonj＠intellistar.net

I'm still digging. I found more 550 stuff. I think this is everything that came with the 550. Here's a chance for you 550 owner's to get the whole set at one shot! Original DS-DOS box and invoice. Original Sanyo Easywriter ver 1.3 disk Original Sanyo disk box with 550 dos ver 2.11 and BASIC 1.25, two original Sanyo disk for InfoStar (set B disk 2 and 3 of 4; disks 1 and 4 are below), original Sanyo disk for DOS 1.25 and BASIC ver 1.1 Original Sanyo disk box with all three original disk of set A, WordStar and CalcStar and a backup copy of DS-DOS. Two card board dummy disks used to protect the floppy drives duing shipment. Joe > >A few weeks ago we were talking about the Sanyo 550 series and someone mentioned one of the alternates operating systems that supported 80 track drives in the 550. I said that was DS-DOS by Michtron. > > Today I found an old Sanyo disk package with four disks for the 550. One of them is DS DOS 2.11, one is InfoStar, one is MailMerge/SpellStar and the other is a disk of misc utilities. The first three are original disks. In additon, the InfoStar, MailMerge/SpellStar are Sanyo labeled disks that came with the 550. If anyone wants them, trade me something I can use and they're all your's. > > Joe

11 years, 3 months

recent additions

by KenzieM＠sympatico.ca

I recently filled the car with these: Apollo DOMAIN Series 3500 Domain series 3000 model 3010 HP/Apollo series 400 (2) Sun 3/60 + tape drive and tapes Sun 3/50 Apple lisa 2 (2) apple II Ci Mac SE/30 with radius monitor Mac color classic Quadra 610 Quadra 800 Quadra 860 power mac 7200/90 Also available was a volker Craig terminal, and a copy apple's unix I also have "quite a pile of HP 712/715/725s in various condition" for me to pick up when I get some space cleared. IKEA has said that the missing piece to complete the shelving will be delayed another 3 weeks, and my wife says no more machines until the shelves are up!

22 years, 8 months

Equipment needs home: Portland, OR. area

by wolf＠nwinfo.net

hey do you have any ideas about using relays or some thing connected to a parallel or aerial port to control the power to an outlet, you know like a dimmer switch controlling motors ETC if you have any thought or ideas I'd be glad to hear them.

22 years, 10 months

ldb4401 can be replaced by .....?

by General＠cyber.net.pk

dear sir please address the issue regards nasir

22 years, 11 months

TRS-80 Model II

by pdp-11＠swbell.net

>Also, if anyone wants one of these things, $10 plus shipping. The >condition >is unknown since I haven't fired them up ... and they don't include >keyboards :). Do you know how much shipping will be?

23 years, 7 months

PDP-11/34 & RK05 Questions

by pdp-11＠swbell.net

I am getting my PDP-11/34 and my RK05 disk drives and packs tommorrow, and I have a few questions.They have have been in storage for years, and, although they have been kept dry, they are probably dusty. Can anyone tell me how to clean the drives and the disk packs before I use them? Thanks, Owen

23 years, 8 months

Monitor tilt - return it?

by Innfogra＠aol.com

If the image is square but just tilted then the fix is usually easy. The yoke is twisted on the neck of the CRT. Take the back off the case. Locate and loosen the locking screw, normally only one. Rotate the yoke to correct the tilt. Be very careful, many loose high voltages. I like putting a mirror in front of the screen so I can see where I put my hands. Good luck. Paxton

24 years, 7 months

Murphy's law is in full effect...

by DSEAGRAV＠toad.xkl.com

Well, plugging the Unibus end of the DW11 into the Q-bus didn't kill it, but plugging it into a Unibus slot BACKWARDS did. (What is it with me and absolutely stupid mistakes? Geez...) At least I think it did. On applying power, I got smoke, but no pop. The chip I crisped isn't marked with a U number, but, on the M8217 end, it's in the bottom row (Just above the bus pins), 4th from the left edge of the card (I'm holding the card with the component side facing me.) The chip has a bad smell and is slightly discolored. All the others look OK. The chip was also very hot when I cut the power and yanked the card out. I was too busy trying to keep the cat from climbing inside the box to pay attention to the card. Next time I shut the door. Assuming there IS a next time. If I can't revive this card, or find a Unibus RL02 controller in 4 days, this project dies. (I can't have the large toys here after Friday. I can only have what fits under my bed, which is the 83 and it's RL02. So anyway, the chip is marked as follows: 915 DS8641N There is no vendor ID, just a little mark like 2 lightning bolts in paralell (Like a jagged = sign). So, the questions now are... 1. What's this chip, and what does it do? 2. Can I replace it, or am I just screwed? 3. Is there a way that with only a voltmeter (I don't have and can't afford a scope) to verify that the chip's dead? (I'm overly optimistic too...) 4. What stupid mistake am I gonna make next? My bets are that the tape drive will be dead for some reason and I stomp on the RSTS tape, or get halfway thru the restore, hit a bad block on the tape, and end up with an unusable drive. Failing that, I'll either crash the RL02 (I only have one pack) or find a way to nuke the 83 and the 34A at the same time. (For refrence, I went and got a PDP-11/34A to use as the UNIBUS end of this.) And yes, I know I misspelled parallel, I'm just too lazy to fix it. -------

24 years, 7 months

pdp11/45

by jritorto＠nut.net

Hello Classiccmp. I recently acquired a nice, rust-free, mostly-original 11/45 from an old lisp hacker in Los Altos Hills, CA. He told me that it had been running the last time he'd powered it up, which was in 1984 IIRC, but sadly, something has gone awry and it won't run now, though it seems to be close. Here's a brief summary of its status: It was originally a five-rack system with each rack containing the controllers for the housed peripherals. The bus was chained through to each rack on a BC05 and terminated with an M930. I only took the processor and the TU-10 racks, so to make troubleshooting easier, I reduced the system to only the CPU and memory boxes (memory is a 220KB box from Monolithic Systems that has unibus in and out). The processor has 12 KW of core as well, so I guess I could cut the bus down a bit more for the purpose of debugging. Mode of failure is such: I powered up the shortened system and the front panel lights lit [excitement]. Then I tried to examine some memory locations via the panel, but when I hit HALT, the RUN light stayed lit. I tried every combination of switches I thought was appropriate, but the RUN light wouldn't go off. (Sounds like a simple bus error, really.) Upon realizing that something was amiss, I decabled all the power connectors >from the logic and tested the voltages, which, surprisingly, were all about 6%-9% above spec (and I'm not too sure that my VOM is accurate even though it's analog). I didn't readjust the voltages, but reconnected the power cables to the logic boards and retested the voltage levels. All stayed about the same except for the -15VDC. It dropped to about 2V. Same reading on both -15V regulators, by the way, and they seem to be connected to different areas of the backplane, but I'm not sure. There seems to be a high-pitch squeal (that sound of a laboring regulator) coming from somewhere in the power supply cluster, but there's no smoke or crackling sounds. I don't remember noticing the squeal with the power cables disconnected, but that may be a subconscious hope and not a fact. So that's my predicament. I don't have much time to mess with this beautiful old girl, so I hope someone here can increase my repairing efficiency. Help me save this great piece of computing history. In return, I'll at least give you an account on it if I get it to the point where it'll run 2.9BSD or V7. I have SMD interfaces and disks, etc and everything else I need (except a DELQA) to get it hooked up to the net. Thank you in advance. jake

24 years, 7 months

haggling (was Re: Damn fools (was Re: Dell "Oldest PC" winner on zdnet))

by CLASSICCMP＠trailing-edge.com

>> back. The rollers and paint were even in good condition. After chatting a >> bit, the seller said we should make an offer. While I was pondering if he >> would take $50 or $100 for it and if I could justify that (I was in grad >> school at the time), my wife piped up and asked "How about $15?" My college >> chum and I just stood dumbfounded while the seller thought for a second and >> said "Ok." And that's how I ended up with my rack. > >I've found that making lowball offers sometimes is the *best* way to get >things from certain surplus outfits. Two places that I frequent seem to have >a tendency to accept offers for less than $25, but reject offers above that >amount (on similar sorts of items). My guess is that if you offer over $25, >they start to think that the item is valuable and that they should get a lot >of money for it. OTOH, I've learned that if you want to get rid of something, you shouldn't necessarily just say "it's free, come and get it". After all, many potential takers think that if it's free, it can't be all that desirable. But attach a price tag and all of a sudden folks want to come up and wheel and deal! -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

24 years, 7 months

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test-drb August 1999