test-drb April 2001

test-drb@ccmp.vtda.org

251 participants
669 discussions

Synchronized oscillation (was re: IBM ScanMaster)

by Robert_Feldman＠jdedwards.com

I just ran across a reference to synchronized pendula in the latest "Wired" magazine (March 2001, p. 58). I did a search for the work the article mentions, which lead to the following site: http://www.gtalumni.org/news/magazine/spr97/rhythms.html. The following is >from this site: "The phenomenon was described in 1665 by the Dutch physicist Christiaan Huygens, who placed two pendulum clocks side by side on a wall. Within a short time, the pendulums were swinging in perfect synchrony. He altered the movement of one pendulum, but within a half hour the swinging weights had regained synchrony. When one of the clocks was moved to another wall, they gradually fell out of step." Robert A. Feldman Robert_Feldman(a)jdedwards.com

23 years, 9 months

CDC disk R/W heads avaliable.....

by jos.mar＠bluewin.ch

Folks, A recently acquired ASR33 came with an assorted sets of spares. Part of the spares were some 196x vintage Control Data disks R/W heads which are of limited interest to me.. They are available to whoever might need them for the cost of shipping from Zurich, Europe ) Jos Dreesen

23 years, 9 months

Teledisk not working

by pete＠dunnington.u-net.com

On Apr 5, 5:31, Jeff Hellige wrote: > >I read "Hacker Crackdown" > >years ago and can't remember if it describes those particular raids. > > I believe it does go into detail on Sundevil. The full book > is available in AmigaGuide format, though I no longer recall where I > saw it posted...it's been a couple of years since I saw that version. It does go into some detail. I bought the book when it came out. The electronic version can be found at http://www.eff.org/pub/Misc/Publications/Bruce_Sterling/Hacker_Crackdown/ which also has the extra "Three Years Later" part . -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

23 years, 9 months

[Q] Xerox DayBreak 5.25" floppy binary format

by yoda＠isr.ist.utl.pt

Hi. What is the binary format of the floppy disks that the Xerox DayBreak workstation uses? And, by the way, how about the format for the tapes (QIC?)? Cheers, -- *** Rodrigo Martins de Matos Ventura <yoda(a)isr.ist.utl.pt> *** Web page: http://www.isr.ist.utl.pt/~yoda *** Teaching Assistant and PhD Student at ISR: *** Instituto de Sistemas e Robotica, Polo de Lisboa *** Instituto Superior Tecnico, Lisboa, PORTUGAL *** PGP fingerprint = 0119 AD13 9EEE 264A 3F10 31D3 89B3 C6C4 60C6 4585

23 years, 9 months

Teledisk not working

by rigdonj＠intellistar.net

Robert, Thanks for your comments but I don't think the problem is the disks. I've also tried Tektronix 8160 disks, Osborne 1 and Osborne Executive disks, Morrow disks and some others and I get the same results with all of them. The only disks that I've ever been able to archive are MS-DOS disks! Joe At 09:54 AM 4/4/01 -0600, you wrote: >I have a copy of Teledisk, but have not used it, so my comments might not be >on the mark. But, I have used other disk format copy programs and know that >they have trouble copying Kaypro disks unless the source disk was formated >on the target (non-Kaypro) computer. Apparently the Kaypro (and also Zorba) >format had some strange features. Might the unusual formatting be the source >of Joe's problems? > >Robert Feldman >Robert_Feldman(a)jdedwards.com > >-----Original Message----- >From: Bruce Lane [mailto:kyrrin@bluefeathertech.com] >Sent: Wednesday, April 04, 2001 9:55 AM >To: Joe >Cc: classiccmp(a)classiccmp.org >Subject: Re: Teledisk not working > > >At 10:10 04-04-2001 -0500, you wrote: > >>Bruce, >> >> I just tried Teledisk again with the SAME results. This time I used two >>known good Kaypro 2 disks. Teledisk copied them to files with no >>complaints. TDChck said that the files were OK. However each file was only >>281 bytes in size. When I tried to make disks from the files it said that >>the data had a CRC error. > ><snip> >

23 years, 9 months

What a Scanmaster is!

by xds_sigma7＠hotmail.com

OK, here's the scoop on the original Scanmaster, not some lame-o PC-attached crud... 8815 SCANMASTER I - WITHDRAWN (NO LONGER AVAILABLE) PURPOSE o For capturing and transmitting noncoded documents to an 4300, S/370, 303X, or 308X system. o For capturing and transmitting noncoded documents directly to another Scanmaster I. o For printing noncoded documents. o For printing formatted text documents. The Scanmaster I is an SNA/SDLC device designed for system-attached operation and terminal-to-terminal operation. It attaches to 4300, S/370, 303X, and 308X processors over switched or nonswitched communication facilities at speeds up to 9600 bps. It will communicate directly with another remote Scanmaster I over a public switched telephone network or private switched or non-switched voice facilities at speeds up to 9600 bps. I got that from the IBM sales manual... I'd love to have one too.. Will J _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

23 years, 9 months

PDP-11 BBS

by broth＠heathers.stdio.com

I am looking for some ideas for putting one of my DEC machines on the net. I used to run a Unix bbs years ago on a 386 running Xenix and XBBS and really enjoyed it a lot. I noticed that the source is still around for that program on the net. This is what I have: 11/23+ running RT-11. I have the TCP-IP package for it and I beleive I have everything I need to make it work. 11/53 running RSX but I can probably coax BSD on it without a problem. VAXstation II running VAX/VMS 4.4 but I also have netBSD for it. I know nothing about VMS. I want to make these machines available but at the same time I want to batten down the hatches so they are not wide open for troublemakers. I personally would like to put the 11/23+ on the net. If I could make that work, then it would be easy to duplicate it on my 11/34 and put that on the net. These would be running behind my IP masq'ed Linux router. I could port forward Telnet and FTP services. Maybe even HTTP if I could get that working on the RT-11 box. Right now thats going to my current web server. Any ideas? Brian.

23 years, 9 months

Teledisk still supported! (whew!)

by kyrrin＠bluefeathertech.com

At 10:10 04-04-2001 -0500, you wrote: >Bruce, > > I just tried Teledisk again with the SAME results. This time I used two >known good Kaypro 2 disks. Teledisk copied them to files with no >complaints. TDChck said that the files were OK. However each file was only <snip> OK! Great news waiting in my inbox when I came home. First: Joe, I've forwarded the description you E-mailed me to both Sydex and Forensics Intl. And that leads into the second part: F-I is perfectly willing to pick up support for those involved in the group buy. The fact that we were legacy customers of Sydex is what did it. So, everyone who bought Teledisk can start breathing again. We're still supported. Joe, I'll forward whatever answer I get back to you. It is also possible that F-I support may open a dialogue directly with you. I did offer them that option, and I gave them your E-address. Thanks much. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner and head honcho, Blue Feather Technologies http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com Amateur Radio: WD6EOS since Dec. '77 (Extra class as of June-2K) "I'll get a life when someone demonstrates to me that it would be superior to what I have now..." (Gym Z. Quirk, aka Taki Kogoma).

23 years, 9 months

Ever take a MicroVax through the car wash??

by pete＠dunnington.u-net.com

On Apr 4, 13:22, Iggy Drougge wrote: > Chuck McManis skrev: > > >At 06:36 PM 4/3/2001 -0500, The Chad wrote: > >>Kidding.... Actually I just took the plastic case from my 3400 up the > >>do-it-yourself car wash. I used the engine/tire cleaner on it, and then > >>Comet Cleanser. It turned out nicely..... it is drying now. > > >That's a great idea. I have done the boards in the dish washer trick (they > >come out nice and clean, but sometimes lose their labels) > Wouldn't they melt or get disformed in the dishwasher? Fibreglass doesn't melt easily :-) I've put quite a few PCBs through our dishwasher (well it's "ours" when I want to clean PCBs, and my wife's when it's dinner plates). It's amazing how many useful pieces of equipment are disguised as domestic appliances: the machine for cleaning keyboard keycaps and shell cases does an excellent job of washing clothes, while the tumbling machine for drying them off also works for socks and shirts. The device in the kitchen for baking small spray-painted articles can be used for pizza and muffins. And so on... -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

23 years, 9 months

For Sale: PDP-8/i w/ Paper Tape

by aw288＠osfn.org

Due to my computing interests becoming very much centered in the IBM world, and also due to 2 tons of Big Blue stuff coming shortly, I have decided to sell off a PDP-8/i. I promised the original seller that I would not Ebay the thing, so I am keeping it to only a few lists. The machine looks like an 8K PDP-8/i, with a highspeed paper tape reader/puch (PCmumblefoo). It looks complete, although I have not checked it 100 percent. Certainly the hard-to-find parts are there (namely the panel and the two core stacks). The rack is not original, and frankly, is ugly. The power supply seems very kludged in (although it looks DEC). This ain't a plug and play 'puter, folks. It needs a cleanup and a tune up. I have a doc set (not included, but I can copy (have to copy one for Will, anyway). Send me an offer if interested. I am located in New York, near Connecticut. No shipping on this item - either you pick up, or I deliver within a few hundred miles (Boston, Washington, maybe Cleveland or even Chicago) for my expenses. Some pictures: http://www.bestweb.net/~toober/images/PDP8I.jpg http://www.bestweb.net/~toober/images/PDP8I.upper.jpg http://www.bestweb.net/~toober/images/PDP8I.inside.jpg http://www.bestweb.net/~toober/images/PDP8I.fc.jpg William Donzelli aw288(a)osfn.org

23 years, 9 months

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test-drb April 2001