test-drb February 2004

test-drb@ccmp.vtda.org

275 participants
504 discussions

by bqt＠update.uu.se

On Wed, 4 Feb 2004 Paul Koning <pkoning(a)equallogic.com> wrote: > 1. DECnet/E only supports the "old" network terminal protocol, which > is object 21. The other one is "CTERM" which is implemented by VMS > and one or two other operating systems, but not DECnet/E. In fact, I > think none of the PDP11s do it; it's way too complex. RSX definitely implements CTERM. I think it's object 23. > 2. DECnet/E works fine on E11. It's been a while since I've tried > that but I did use it, under Linux that is. I was using > the "tap" pseudo-ethernet to debug DECnet/Linux against DECnet/E... > > FWIW, there's an implementation of the "old" network terminal protocol > in the DECnet/Linux kit; with some hacking you can probably port that > and use it to talk to DECnet/E that way. The DECnet/Linux implementation is so bad that I'd say it's unusable. (Atleast when I tested to/from an RSX system.) Johnny Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt(a)update.uu.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

20 years, 11 months

Shameless Plug Alert: More goodies for auction

by kyrrin＠bluefeathertech.com

Hi, gang, Stuff comes in, stuff goes out. I've got a stack of items up on E-pay at the moment, including an IBM PS/2 'Pumpkin' luggable, a VMEBus prototyping board, and a nine-gig SCSI drive in an external enclosure. You can do a 'Search by Seller' for 'bftbell' if you're interested. Thanks much. -=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner & Head Hardware Heavy, Blue Feather Technologies -- http://www.bluefeathertech.com kyrrin (at) bluefeathertech do/t c=o=m "If Salvador Dali had owned a computer, would it have been equipped with surreal ports?"

20 years, 11 months

M7891-DC 2a fuse on +12?

by brad＠heeltoe.com

I had a spare moment yesterday so I decided to try and troubleshoot my bad M7891-DC (128kw) in an 11/34a. Looks like I have no +12v. The 12v regulator seems to be working as I have 12v up the 2A fuse. But nothing after that. I'm assuming the fuse has blown. Easy to replace, but I also suspect it blew for a reason. (and replacing it might just yield another blown fuse :-) Anyone seen this before? Do they sometimes blow due to transients? I'm tempted to apply 12v after the fuse with a bench supply that has a current regulator and see what it draws. It's been a while since I worked with "plain old DRAMs" but I assume the 12v is for them (Vdd). -brad

20 years, 11 months

This just in - Commodore B128 low profile computer (NOT 128D)

by tosteve＠yahoo.com

Don't know much about it yet, but it sure is pretty! Seems to work fine. It came out the same time as the C-64, supposed to replace the PET and be their business computer, but didn't sell well, I guess. __________________________________ Do you Yahoo!? Yahoo! Finance: Get your refund fast by filing online. http://taxes.yahoo.com/filing.html

20 years, 11 months

VAX 4300 on eBay

by jpl15＠panix.com

For those of you with intact usernames, there is the following: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3076049197&category=1479 $50 min bid; 6 days; no action as of this posting; in Florida. Cheers John

20 years, 11 months

'melted' tape roller

by witchy＠binarydinosaurs.co.uk

Hi folks, I've seen this phenomenon on the likes of printers etc but I've never seen it on a tape drive. Basically the rubber that used to surround the wheel that controls FF/REW/Play functions on the tapedeck in my newly acquired Sharp MZ80B has melted to a sticky black compound that's run down the housing and gummed up the tape wheels. Pix at http://www.wowrarelook.co.uk/DSCF5821.JPG (244k) front of housing showing icky stuff http://www.wowrarelook.co.uk/DSCF5812.JPG (27k) control wheel Note shiny surfaces where there shouldn't be shiny surfaces :) I'd assume that the tape mechanism was a standard one but the question is, can I still get the part seen in DSCF5812.JPG since it appears that's all that's at fault? Cheers as ever. -- Adrian/Witchy Binary Dinosaurs www.binarydinosaurs.co.uk - possibly the UK's biggest online computer museum www.snakebiteandblack.co.uk - ex-monthly gothic shenanigans :o(

20 years, 11 months

DEMPR questions

by msokolov＠ivan.Harhan.ORG

Does anyone know how to use a DEMPR? Does it internally terminate each thinwire segment or not? I.e., do you run the end of the trunk directly into the DEMPR or do you T it like every other device on the segment? Do you need to enable/ disable the thickwire uplink port (how?) or is it automatic? What does the button marked with a T in the circle do? What do the indicator lights mean? What happens if the DEMPR is powered down, do the segments simply partition with each segment remaining good by itself, or do the segments themselves become unusable? MS

20 years, 11 months

Looking for Cromemco Cyclops Video Camera documentation

by vcf＠siconic.com

Does anyone have the documentation for the Cromemco Cyclops Video camera? -- 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 ]

20 years, 11 months

Restoring old floppies to usable state

by cb＠mythtech.net

> The answer is absolutely maybe. It really depends >on the original cause. Try running some test with >a known good drive. Formats appear to go ok, and basic testing (writing data to and reading from) appear to work ok. I haven't tried a real stress utility yet. > You didn't state what you were running on? Things >like Nortons disk doctor have good serface test. Right now, running on an old Mac. I'll run a few disks thru a PC to use better surface testing tools (any of my good Mac tools are either not readily available, or will only run on newer macs that have problems with 800k disks in the best of situations, so I wouldn't be able to trust the results to the disk or the mac being the source of error) Thanks -chris <http://www.mythtech.net>

20 years, 11 months

KXT11 (was: Re: looking for a few items.)

by mbg＠TheWorld.com

>> Interesting. >> >> The field guide lists the M7676 as if it was a single board >> T11, perhaps like Megan's "PDP laptop" from the VCFe. >> Anybody ever seen a M7676 / KXT11 ? >Yes, that sounds like the Falcon SBC, aka the KXT11, which >indeed is a single board computer based on the T11 chipset. The SBC, KXT11-AA and -AB are single-board to the extent that they have the CPU, boot code, memory, clock, a couple of serial lines all on-board. The only thing they don't have is a mass storage interface. I don't know what the 'laptop' I have has in it, I have been unable to successfully open it completely for examination. I think there is a hidden screw I have yet to find and remove. One of these days, however... Megan

20 years, 11 months

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test-drb February 2004