test-drb July 2005

test-drb@ccmp.vtda.org

257 participants
628 discussions

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

by g-wright＠worldnet.att.net

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

18 years, 10 months

VCF Midwest 1.0 and VCF 8.0 exhibitors - sign up now!

by vcf＠siconic.com

We've got the first two registered exhibitors for VCF 8.0: http://www.vintage.org/2005/main/exhibit.php But in the meantime, we still need plenty more exhibitors for VCF Midwest 1.0. You midwesterners are letting Pat down in a serious way! Pat has poured his heart and soul into this event and so far you folks aren't responding in kind. Let's see at least half a dozen people sign up as exhibitors this week! Time is running out... http://www.vintage.org/2005/midwest/exhibit.php Do it for the children! ;) -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

18 years, 10 months

Free 8" floppy drives, Washington DC area

by shoppa_classiccmp＠trailing-edge.com

I've still got many 8" floppy drives available for free right outside Washington DC. Will not ship, you must pick up. Some full-height, some half-height, some in desktop enclosures with power supplies and some in rack mount enclosures with power supplies. If interested, drop me an e-mail at my non-list address, shoppa at trailing-edge.com. Also some misc ST506-type (MFM) hard drives, and an 8" hard drive with 50pin+20 pin interface (ST??? can't remember) in an enclosure with power supply. I think that 8" hard drive worked with a Compupro Disk2 controller when I last tried it (like a decade ago) but I no longer have the Disk2. Tim.

18 years, 10 months

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

by GOOI＠oce.nl

Hi Jerry, swap the M8639-YA and the M8029 for starters! The M8639-YA is the RQDX1 and is the famous board that does NOT pass NPR/grant. It is even stated in the Field Guide that the RQDX1 must be the last board in the chain... gd luck, - Henk, PA8PDP. -----Original Message----- From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org]On Behalf Of g-wright Sent: dinsdag 5 juli 2005 19:29 To: cctalk at classiccmp.org Subject: Need help with a 11-23+ and a RX-02 , Repost 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

18 years, 10 months

any NeWS software still around?

by compoobah＠valleyimplants.com

I've been doing some poking around to find software that runs on the NeWS window system, without much luck (most of what I found was confined to Sun demo binaries) Does anyone know of any archives of NeWS sources? I heard reference to something called GreatNeWS/HyperNeWS but wasn't able to find it either. I know NeWS is somewhat out of favor, but it would be nice to have my IRIS do something other than text-mode apps on 4Sight. Scott Quinn

18 years, 10 months

"Response" from seller with the "Apple-1"

by James＠jdfogg.com

> -----Original Message----- > Another fine example of why I can't stand eBay. It's not Ebay, it's humans. Ebay is just an excellent vehicle for the worst human traits. I can't stand humans. ---- There are only 10 types of people in the world, those who understand binary and those who don't.

18 years, 10 months

Stock IBM XT low level format program wanted [solution]

by billdeg＠degnanco.com

>I am currently in the process of doing the low level format on an IBM XT with all original parts. This is the middle era >version with a Xebec/IBM harddrive controller (no dip switches), newer diskette drive, and an IBM 20 MB hard drive. . This worked: A:>Debug c/r - -I 322 c/r -I 321 c/r -O 322 0 c/r -I 321 c/r -O 320 04 c/r -O 320 00 c/r Note: This is the value for Drive C. Substitute 20 if formatting Drive D. -O 320 00 c/r -O 320 00 c/r -O 320 05 c/r -O 320 07 c/r Note: Before you hit this carriage return, be sure you have typed the correct value shown in the previous note for drive C or D. Drive light should come on at this point and the controller will begin doing a low-level format on the drive. [It takes quite a while, a good time to re-watch Lord of the Rings...] When the drive has been formatted, the drive select light will go out and you will be returned to the - prompt. -I 321 c/r -I 320 c/r -Q And you should now be back at the DOS prompt. At this point you should enter FDISK, set the partition, and perform your high level format. [thanks Marvin Johnson and http://www.uncreativelabs.net/textfiles/drives/XEBEC.DOC

18 years, 10 months

Swapping Hi density drives for low density drives

by mbbrutman＠brutman.com

The format bug is new to me, but I'm on DOS 3.3 anyway and DOS 3.3 does not have any problems if I used a genuine 720K drive on the Jr. It does have problems if I use a 1.44MB drive instead. Here it is in table format. DOS 3.3 with no device drivers is always used and double density diskettes are always used. Real 720K drive on Jr: Boots DOS 3.3 from original IBM DOS 3.3 diskette Formats other diskettes with no problems Boots DOS 3.3 from a double density copy of the original. Passes diagnostics 1.44MB drive on Jr: Boots DOS 3.3 from original IBM DOS 3.3 diskette Will not format other diskettes: gets invalid media error Diags runs but reports error. (Probably related to above error) Diskette is readable - just track 0 has errors A double density diskette prepared on a 'bigger' machine, whether it be by disk copy or diskette imaging program fails on the Jr when using the 1.44MB drive. These other machines all have 1.44MB drives. Even though it fails on the Jr, it boots the other machines, so the diskette is fine. I suspect some sort of timing error when the 1.44MB drives talk to the Jr controller. I know I've used an ancient 1.44MB drive before .. all of the drives I tried this time around are newer. I'm wondering if something has changed in the manufacturing/design of the more modern drives that make them less tolerant or more error prone when using double density media. It's not like people test double density media often anymore. :-) I'm not bulk erasing .. I'd better go find a bulk eraser to be sure. 720K drives are tough to find. I'm going to try the strange Teac model and dumb it down to a 720. Explain the drives on the JX - I thought those were 720 3.5 inch drives. Are the SA465 and Teac 55F 5.25 or 3.5" drives? Yes, the Qume 142s suck. Besides being slow mechanically they are not much better than the old full height Tandons - just different glitches. The drive rails always seem to get sticky, and they are noisy little A#@$@.. :-) Mike

18 years, 10 months

LF: Epson HX-20 service info

by dave04a＠dunfield.com

Hi Tony, >> There's a little motor/gearbox to move the head, and I think a position >> detelction swtich. I will check the manual for you. The technical manual >> I have gives schematics for the cassette option, exploded views, >> dismantling instructions, etc. > >HEre's a little information on how this works. > > ... lots of useful info ... Thanks! - that was very helpful. When you said "quite a fiddle" you weren't kidding ... but on the + side, it gets easier after about the third time... Problem turned out to be mechanical, a combination of dirt/aging lubricants in the mechanics which slide the head/capstan in and out, and dirty contacts in the position detector leaf switch. After cleaning and lubricating the mechanical parts, and cleaning and adjusting the switch (which is quite finicy - hence the "several times" - it's more fun to take apart with a tape stuck in it) ... the drive is working fine now, and the HX-20 is saving and loading programs like it was new! Thanks again & regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html

18 years, 10 months

"Response" from seller with the "Apple-1"

by dwight.elvey＠amd.com

>From: "Philip Pemberton" <philpem at dsl.pipex.com> > >In message <m1DpanR-000IyPC at p850ug1> > ard at p850ug1.demon.co.uk (Tony Duell) wrote: > >> YEs, but you don't know how high the winning bidder was prepared to go >> either. He might have gone way higher than you were prepared to pay. > >Point taken. >I have had fairly good luck in physical auctions - snagged a near-complete# >Jupiter Ace for ?2. Then I went and knocked the PSU cable and blew up nearly >every chip on the mainboard (Lesson #1: Buy a PSU with interchangeable >connectors, instead of those "spiderplug" things)... Better still, get one with the right connector or just buy the one plug and attach it to another PS. Dwight

18 years, 10 months

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test-drb July 2005