test-drb July 2005

test-drb@ccmp.vtda.org

257 participants
628 discussions

E-bay complaints: was Re: "Response" from seller with the "Apple-1"

by dwight.elvey＠amd.com

>From: "Jim Isbell, W5JAI" <jim.isbell at gmail.com> > >No, it doent keep them from finding them at the last minute, they are >just not there to find. With 7 days to look, I dont think I miss very >many because they are late to the party. If you are a dollar short >and 6 hours late, tough luck. Do you think a real auction house would >hold the bidding while someone ran from the parking lot to try to get >in a bid at the last minute? > Hi You seem to assume that we all have time to watch earlier items. I find that I can just keep up with one or two days ahead. Even so, I have to skip maybe 1 or 2 days a week. Some how, you seem to think that people are just watching for 7 days. Most are only looking one or two days ahead. If it is an item that has already gone past my max, I don't waste time on it. If it is still in my price range, I'll bid on it. Usually the first bid is just a place holder below what I expect to make as my final bid. Dwight

18 years, 10 months

E-bay complaints: was Re: "Response" from seller with the "Apple-1"

by dwight.elvey＠amd.com

Hi I rarely bid on an item before the last day. This is mostly because there are so many items that one doesn't have time to stay more than a day or so ahead. Also, some people seem to like to have shorter time auctions. If I look to far ahead, I might miss one of these quickies. I usually do last minute bidding if I'm around a computer but I also like to put in what I call a place holder bid. People can then look at my previous bidding and deside if they want to waste time bidding against me. I get pissed when someone pulls an item early. It has only happened a couple of times. One the really ticked me was that someone had a mod-8 board populated with 1702A's. I'd just placed my place holder bid and they pulled the auction. What is worse is that I suspect that they later pulled the EPROMs from the board to sell separately. Now the program data that was in the EPROMs are surely lost :( Dwight

18 years, 10 months

Need help with a 11-23+ and a RX-02 , Repost

by ajp166＠bellatlantic.net

> >Subject: Need help with a 11-23+ and a RX-02 , Repost > From: g-wright <g-wright at worldnet.att.net> > Date: Tue, 05 Jul 2005 13:28:44 -0400 > To: cctalk at classiccmp.org > >Hi, > >I'm trying to get one of my 11-23's going and finally >got around to setting up a TU58 emulator. got it >to boot RT-11 and now trying to get a RX-02 working. > >I have 3 controllers and 3 sets of RX-02's. All do the same >thing. The just seems to not be able to find track 1 or Home >or ??? The heads just keep going from home to maybe the >first tack and back. The heads do load and the system tries >quit a few times then pauses and tries again. It then errors >on drive failure or read error directory not found, size >function failed depends what I ask it to do. I have tried all >of the boards and drives. all or them seem to do the same > thing. I do not know how good the drives are but can't > believe there all bad. > >I have recheck the switches in the RX-02 and the Jumpers on >the cards. Cleaned the drives. tried different disks. > >Is there some kind of compatibility issue that i do not know >about. Or do I have 6 dead drives. > >The system is a Micro PDP 11, 8 slot Rack mount, with >1 M8189 11-23+ >1 M8067 KB 256k Memory >1 M8639 YA MFM rx50 controller >1 M8029 RX-02 controller >- in this order. > >Everything else seems to work. I added the floppy card >but the rest is original. > > >Thanks, Jerry > >Jerry Wright >JLC inc > Either you blew the interrupt grant chain (the 8639 should be last!) or you didn't put a bootable system on the disks. The boot behavour suggests that the boot track is bare or worse. You should have done a copy/boot to get the system bootable off floppy. since you can boot RT via TU58 you should make sure you have the DY device loaded and do a DUP /bad DY0:. A tu58 system (or emulator) is big enough to carry all the needed devices and drivers. As far as compatability, I've used RX02 with every Qbus I have successfully. Allison

18 years, 10 months

IBM AT Drive Types

by RMeenaks＠OLF.COM

See Mike's link for an explanation... http://www.msclub.ce.cctpu.edu.ru/bibl/PCB/ch23.htm#Heading18 Cheers, Ram > -----Original Message----- > From: Jules Richardson [mailto:julesrichardsonuk at yahoo.co.uk] > Sent: Tuesday, July 05, 2005 4:58 PM > To: cctalk at classiccmp.org > Subject: Re: IBM AT Drive Types > > Home come entry 15 was reserved? (and why pick 15?) > > cheers > > J. >

18 years, 10 months

Amiga 2000 Floppy Drive problem

by dwight.elvey＠amd.com

Hi Has anyone mentioned measuring the voltages on the control pins. It would be good to know if it was the controls or the drive. Dwight >From: "Ethan Dicks" <ethan.dicks at gmail.com> > >On 7/1/05, Teo Zenios <teoz at neo.rr.com> wrote: >> Jumper 301 is still in the open position (for a single drive). > >Perfect. > >> The two 8520's looked ok (nothing shorting pins together or stuff like that, >> no signs of overheating). I swapped the 2 chips around and still have the >> same result (external Df2: works while the internal DF0: is dead). > >OK... swapping the 8520s and watching the symptoms was a pretty >standard method back in the day - it's easy and it works, so that >_probably_ shows your 8520s are OK. > >> I checked the floppy cable and didn't see anything out of the ordinary >> (except a pin in what looks like position 2 of the cable but I think that is >> a key, since the motherboard does not look like it has a broken pin on it). > >That _is_ a key (and needs to be in any Amiga hardware FAQ - I can't >remember how many times we had to tell people that in our Amiga club - >every novice who added an internal floppy use to call us up and ask >how to "replace a broken pin"... they thought that the >pin had become stuck, and they must have pulled it out when they >messed with the cable. > >> At this point I think it either the floppy cable has a bad line, or the >> drive is just dead. Since the amiga cable does not look like a standard >> floppy cable I think I will try setting the drive for Df1: and shorting >> Jumper 301 to see if its recognized at all. > > >> I did some research and quite a few older DD 3.5" PC drives can be jumpered >> to Amiga mode (ofcourse I don't have any on the list). > >And they support the /DISK-EXCHANGE signal (p 34?) That was what >always hosed frugal early-adopters of the Amiga - they'd try to use a >cheap floppy, and the OS wouldn't be able to step the drive in and out >one track to get the drive to assert the /DISK-EXCHAGE (or whichever >one it was) so that the drive could 'tell' the OS that the diskette >that used to be there isn't there any more. > >You _can_ hook up a floppy drive that won't assert that signal, but >that places a burden on the user's head to have to type an AmigaDOS >command to flush the previous diskette's particulars and to cache the >new diskette. > >-ethan > >

18 years, 10 months

Help setting up a SBS/Bit3 PCI-to-VMEBus cards

by RMeenaks＠OLF.COM

Hi Chris, I was able to get the drivers from SBS. They have the manuals, etc online and anyone can download them. Better than other companies where it is a pain to get them. Since I am quite a newbie when it comes to VME, I am not sure if I installed everything correctly. I got the chassis hooked up and everything and the showrevs utility does seem to pick up both the PCI and VMEBus cards. I really want to get this working under Linux, but I want the windows version up and running first. Here is what I have so far: 1) A VME Chassis with the SBS board connected to slot #0 (System controller) 2) Several transputer VME slave boards on the other slots. I want just the 1st transputer board to be recognized by the VME bus while the others are there just for power and J2 connections. 3) The drivers I have for the transputer boards are UNIX source files which I need to convert over to Windows XP/SBS style. I could surely use some help here (any software that illustrates how to communicate when be helpful). 4) There seems to be terminators? on both the J1 and J2 on slot #0. What are they used for? Should I remove them? They are on the back of the VME Chassis. 5) This is a VERO chassis (if that has any relevance). Thanks a lot, Ram

18 years, 10 months

Help setting up a SBS/Bit3 PCI-to-VMEBus cards

by RMeenaks＠OLF.COM

This chassis once held a FORCE SPARC VME controller. It has long since been removed by the previous owner. Hence, those terminators are probably from that board.... Thanks, Ram > -----Original Message----- > From: Ram Meenakshisundaram [mailto:RMeenaks at OLF.COM] > Sent: Tuesday, July 05, 2005 1:28 PM > To: General Discussion: On-Topic Posts Only > Cc: cfandt at netsync.net > Subject: RE: Help setting up a SBS/Bit3 PCI-to-VMEBus cards > > > Hi Chris, > > I was able to get the drivers from SBS. They have the > manuals, etc online and anyone can download them. Better > than other companies where it is a pain to get them. Since I > am quite a newbie when it comes to VME, I am not sure if I > installed everything correctly. I got the chassis hooked up > and everything and the showrevs utility does seem to pick up > both the PCI and VMEBus cards. I really want to get this > working under Linux, but I want the windows version up and > running first. Here is what I have so far: > > 1) A VME Chassis with the SBS board connected to slot #0 > (System controller) > > 2) Several transputer VME slave boards on the other slots. I > want just the 1st transputer board to be recognized by the > VME bus while the others are there just for power and J2 > connections. > > 3) The drivers I have for the transputer boards are UNIX > source files which I need to convert over to Windows XP/SBS > style. I could surely use some help here (any software that > illustrates how to communicate when be helpful). > > 4) There seems to be terminators? on both the J1 and J2 on > slot #0. What are they used for? Should I remove them? > They are on the back of the VME Chassis. > > 5) This is a VERO chassis (if that has any relevance). > > Thanks a lot, > > > Ram >

18 years, 10 months

Help setting up a SBS/Bit3 PCI-to-VMEBus cards

by rmeenaks＠olf.com

Hi, Does anyone know how to set these boards up? I have a SBS 616 PCI adapter and its corresponding VMEBus adapter. I also have a VME Chassis and I want to install some transputer boards on the chassis and access it via Windows. Anyone have experience in using these??? Thanks, Ram

18 years, 10 months

WOW!!!! $15k DEC PDP-8 CLASSIC MINICOMPUTER SYSTEM DIGITAL PDP8

by aek＠spies.com

> $50k for an S/360 does seem too high, though Time to start looking.. I know a couple of people who would pay that for a 360/50 system, if one could be found. Most were chopped up when the price of gold was high in the '70s.

18 years, 10 months

PDP-11/34 Programmer's Panel, Bubble Memory, DEC Rack Panel on E-bay

by rigdonj＠cfl.rr.com

<http://search.ebay.com/_W0QQsassZrigdonj> Joe

18 years, 10 months

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test-drb July 2005