test-drb

test-drb@ccmp.vtda.org

101090 discussions

by allisonp＠world.std.com

>up so that powering up the 11 powered up both the BA11 and the BA23. Now I >know the little 3 plug do-hickey (I think it is a mate-n-lock) normally >connects to a power sequencer in the rack, but I don't have one of those. >Is there any way to make it work otherwise? No, you need a 871A power distribution or similar. Lacking that a box with a small DC power, relay and outlets will do as those connectors are simply switches on the BA11 (verify with meter). That why ba-11 has a switch on the front and also on the back. Allison

25 years, 11 months

OT: Archiving data/video/movies/photos/oral history

by xds_sigma7＠hotmail.com

Maybe this is just a sign of how much I mess with computers/don't clean my car, but I've been known to discover 9-track tapes that slid down there in transport a long time back under my seat... Not to mention that there are assorted IBM System/36 parts under my passenger seat as we speak... The last time I cleaned my car, I found an Apollo Pascal manual I didn't even know I owned, heh.. So I dunno, for me, media would have to be around 36-48 inches across to not disappear sometimes.. Will J ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

25 years, 11 months

ASCII Art Golden Gate Bridge & Plane

by mfhoneycutt＠earthlink.net

John, I would really like a copy of any ASCII art files you might have, especially if they are the ones with the embedded overstrike control codes for a Dataproducts band printer. We used to have some files for our Wang system that used a DP printer.. they were really great. They went out the door when the systems were retired about 12 years ago. I now have a MicroVAX II and the DEC version of the B200 DP band printer, so I should be able to run off some good copies on greenbar paper (back side, of course) of any files I can locate. This has been an interest of mine back to the early 70's when a few punch card decks would get passed around that you could run on the IBM that would generate some pretty fair posters for dorm room walls. Thanks to you and the list, Mark Honeycutt mfhoneycutt(a)earthlink.net -----Original Message----- From: John Foust <jfoust(a)threedee.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Friday, June 02, 2000 3:45 PM Subject: Re: ASCII Art Golden Gate Bridge & Plane >At 09:26 AM 6/2/00 -0700, Sellam Ismail wrote: >>I took a photo of an ASCII art poster I have featuring the Golden Gate >>bridge and an airplane flying over it: >>It's made of up roughly 7 x 8 squares of wide carriage printer paper and is >>roughly 9 feet wide by 7 feet high. > >I think this is on an RSX ASCII collection tape I got from >someone or somewhere. In the "readme" FILENN.IDX, it's the >largest file: > >FILE14.LST 12,405 * Golden Gate Bridge > >where 12,405 records translated to 1,659,857 bytes. I'd be >glad to send a zipped version to anyone who wants it. > >By comparison, the popular Moon picture is 950,283 bytes, and >the Einstein is 348,400 bytes. > >- John >

25 years, 11 months

Looking for Cap'n Crunch 2600Hz whistle

by allain＠panix.com

> I'm also looking > for the October 1971 issue of Esquire magazine that featured the article > with John Draper talking about the "blue box". I know it said email directly but this topic is a little too interesting to do that with. The article mentioned is in Esquire, October 1971. It can be viewed at http://www.webcrunchers.com/crunch/esq-art.html John D. was recently featured in the New York Times: 26-March-2000 which was a near full page covering none other than the Homebrew Computer Club's 25th anniversary. Immensely on-topic, I believe! The books "Digital Deli" and "Hackers" are good references also. The former features an article on John D. written by Steve Wozniak. John A.

25 years, 11 months

DEC power control? How do it know?

by CLASSICCMP＠uhura.trailing-edge.com

>Ok, I'm cobbling together a PDP-11 and I ran out of slots on my BA11 so I >put a bus extender into it and plugged that into a BA23. The system works >fine (thank you micronotes!) but I'd like to figure out how I could set it >up so that powering up the 11 powered up both the BA11 and the BA23. Now I >know the little 3 plug do-hickey (I think it is a mate-n-lock) normally >connects to a power sequencer in the rack, but I don't have one of those. >Is there any way to make it work otherwise? Am I correct, that you don't have a "Power Controller"? A DEC Power Controller is a metal box with one line cord in and many jacks for plugging in accessories, and a contactor (big relay) inside for switching many of the jacks on/off under remote control of the 3-pin plugs/cables. Without a Power Controller, you have no contactor, and no way of remotely switching things on and off. With such a small system, you can probably go to Radio Shack and get one of their power controllers, that works by sensing current draw to one of your boxes and turns the rest on when that one comes on. No, it's not as fancy or as configurable as a DEC power controller, and Radio Shack certainly doesn't have any versions that do 3-Phase at 60 Amps per phase, but it ought to work fine for a small system like yours. -- 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

25 years, 11 months

OT: Archiving data/video/movies/photos/oral history

by CLASSICCMP＠uhura.trailing-edge.com

Sellam wrote: >On Fri, 2 Jun 2000, William Donzelli wrote: >> There is evidence of this already. There are lots of people today that are >> keeping "record players" alive simply because many of the things they want >> to hear are only available on vinyl. The same is true with Edison >> cylinders, 78s, 16' transcription disks , 2 inch Quad video, slow 16 mm >> film, and scores of other dead media. Yes, CD-ROMS are far more complex >See: > >The Dead Media Project >http://www.wps.com/dead-media/index.html I've looked at their pages, and tried to figure out what they do. They seem to just write about dead media, and they don't actually do anything with it. Is that true? To paraphrase some comedian whose name I forgot, isn't that a lot like writing about dancing but never going dancing? Tim.

25 years, 11 months

ASCII art & scanning techniques discussion on Community Memory

by foo＠siconic.com

One of the Community Memory archives is sprinkled with messages about ASCII art scanning techniques, among other interesting topics: http://memex.org/cm-archive4.html Sellam International Man of Intrigue and Danger ------------------------------------------------------------------------------- Looking for a six in a pile of nines... Coming soon: VCF 4.0! VCF East: Planning in Progress See http://www.vintage.org for details!

25 years, 11 months

Exabyte 8505XL tape drive or is it a DEC RZ24L

by ghldbrd＠ccp.com

Hello, Finally got a tape for this thing and it is DOA -- doesn't seem to do anything. The lower green LED on the tape drive flashes slow then fast. Interesting thing though -- when I interrogated the SCSI buss, it came back as a DEC RZ24L. thought you DEC fans might know what that is, and if it is a proprietary model that I can't use on my Amiga. Kind regards -- Gary Hildebrand ghldbrd(a)ccp.com

25 years, 11 months

Looking for data sheet for Zilog 8530 Serial chip

by ethan_dicks＠yahoo.com

--- allisonp <allisonp(a)world.std.com> wrote: > >[ Its the chip used in the Apple Lisa and Mac and LOTS of other devices. ] > > You sure of this?? It's not really friendly to the 68k buses. > > Allison I'm sure. It's in the Mac from day one, in Sun workstations since at least the Sun3 era (and still in one form or another in various sun4c boxes) and in every 68K-based product Software Results made after the Unibus products (the original boards used the COM5025 like the DEC DPV11? DUV11?) I will admit that it is not friendly to the MC68K bus. We used one or two dedicated PALs to handle the interfacing. Additionally, we had an 8Mhz CPU (10Mhz for the VAXBI model), but back when the Z8530 was new, 4Mhz parts were available and later some 6Mhz, but 8Mhz parts didn't come along until way later, long after our designs were done. There's lots of notes in the COMBOARD source code about not wacking on the Z8530 too fast. Eventually, we developed a kind of serial driver to handle swabbing registers, but the first products just used macros to always space out the time between telling the Z8530 which internal register to select and reading/writing that register. Personally, I think it's a cool chip, much cooler than the 8250/16450/16550 family. In addition to an async console for debugging, we pumped 3780, HASP and SNA traffic over them up to 128Kbps (our fastest modem eliminator speed). We only ever sold products for use at 56Kbps (64Kbps in Europe). -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Yahoo! Photos -- now, 100 FREE prints! http://photos.yahoo.com

25 years, 11 months

Can someome explain how arithmetic works?

by DSEAGRAV＠toad.xkl.com

Need this for my emulator, and nobody can explain to me how it works, and I can't find any documentation that's useful to me. Specifically, I need stuff like "you shift left and then check the last bit" etc. etc. Basically, I have a bunch of ones and zeroes and I have to know how to add/subtract/multiply/ divide with them. -------

25 years, 11 months

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