test-drb April 2004

test-drb@ccmp.vtda.org

248 participants
481 discussions

Is there a scan of "Designing Computer & Digital Systems" by Digital Press available?

by dickset＠amanda.spole.gov

Does anyone have a PDF of "Designing Computer & Digital Systems", 1972? I have number of 30-year-old DEC handbooks, but not that one. -ethan -- Ethan Dicks, A-130-S Current South Pole Weather at 27-Apr-2004 13:10 Z South Pole Station PSC 468 Box 400 Temp -72.2 F (-57.9 C) Windchill -103.2 F (-75.2 C) APO AP 96598 Wind 7.4 kts Grid 069 Barometer 680.5 mb (10607. ft) Ethan.Dicks(a)amanda.spole.gov http://penguincentral.com/penguincentral.html

20 years, 2 months

Mac IIfx update

by witchy＠binarydinosaurs.co.uk

Folks, Left my IIfx with both batteries out for 3 1/2 days and I still get no signs of life. I know the keyboard's OK as it powers up my IIci. Any thoughts on what else might die over a couple of years non-use? cheers -- Adrian/Witchy Owner & Webmaster, 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, 2 months

request from a old post "New DEC finds"

by ddsnyder＠zoominternet.net

Ethan, You mentioned in a old post: "I have abundance of VCB02s, so if anyone wants to turn a Qbus MicroVAX into a VAXstation, I'm sure we can work something out (no mice, monitor cables or cab kits, I'm afraid)." >from Fri Jun 27 20:40:38 2003 I have a MV3800 with a 8 plane (256 color) VCB set, but I do not have the bulkhead connector or QBUS faceplate type connector nor the external keyboard, mouse and monitor cable. Do you have any of these? Please let me know, Dan

20 years, 2 months

Blinkenlights for everybody -- follow-up (1)

by GOOI＠oce.nl

Hello All, I have updated the "homebrew PDP-11" page on my website and added a page called "Action!". You can download the latest software and see the Real Console in action in 4 mpeg files. So far, I have received interest to make 10 sets ... if you're not sure what you can do with these boards, here are a few more possibilities. - You can use one output port or, say 6 bits, to drive an anlogue meter via an R/2R network (simple DAC). - Same on the input side : connect a potentiometer via a DAC. - A substitute for defective logic! One example : remove the (defective) boards from the card reader (DEC aka Documation M200) and replace it with a single Core and I/O board (+ software...) - Interface a peripheral. One person was thinking of connecting an IDE drive to in/out ports and access it under program control (no DMA). - anything you wanted to give simple intelligence !!!! Updates to the hardware design are in progress, lifting the design limit of a maximum of 2 I/O Boards to the very comfortable (theoretical) 8 I/O boards. The limit is the number of octal latches that you can connect to the buffer IC -74245 in the datapath to the I/O Boards. So, there is almost no limit to drive a large console, for example the PDP-8i (over 80 lamps), the IBM S3 .... I will keep the list posted! - Henk, PA8PDP.

20 years, 2 months

Anybody want an IOMEGA 150 Multidisk?

by SUPRDAVE＠aol.com

50 pin SCSI with disk. works fine, but I dont need it in the IBM model 85 I got it from. Pay to ship and add enough for an ice cream cone and it's yours. -- I am not willing to give up my liberties for the appearance of 'security'

20 years, 2 months

TU 58 rubber rollers

by gamma＠mail.student.oulu.fi

Hello, I was just wondering, if you know where I could find TU58 rubber rollers. I know one VAX 11/730 in our university's cellar, that could hardly boot because of worn rollers. I could perhaps repair it' if I had the rollers. /Antero

20 years, 2 months

LF Heathkit H8 original software

by rogbirk＠wiktel.com

did you find software for the H8?

20 years, 2 months

Digital RK05J

by vax3900＠yahoo.com

Does somebody want one? I found one in a warehouse that is used in a big digital test bench. They ask $299 for the whole bench (maybe 1000 LB) but I can ask them whether I can pull the RK05j and buy that only. I ask $10 handling fee only. Thank you! vax, 3900 __________________________________ Do you Yahoo!? Yahoo! Photos: High-quality 4x6 digital prints for 25¢ http://photos.yahoo.com/ph/print_splash

20 years, 2 months

Tapeless Adam ?

by KVanMersbergen＠RandMcNally.com

eColeco sells it for $30 without tape drive, keyboard, printer or controllers. R80 CPU with place for two Datadrive tape units to boot Tape Software and SuperGames, and save or load files on blank Digital Datapack tapes. Play Coleco Game Cartridges (virtually indestructible plastic plug-in software on MicroChips) using Game Controllers (two 9 pin ports available). Separate Game and Computer Reset Switches. Expandable console features three card slots under the top access cover (internal Modem or serial card, Aux Dot Matrix Printer Card, Expansion Memory Cards from 64K to 256K, and Hard Disk Drive interface Cards), plus external card slot on the right end, and disk drive port on the left end for a single cable connection to add a floppy disk drive (320K to 1.44 Megabyte Capacity). Other connectors: RF (TV) output, Monitor (Video) output, and combination Audio/Video output to a composite input monitor or TV equipped with A/V inputs. 5% handling and ground U.S.A. shipping is $14. 30 day warranty. # 182 LIMITED QUANTITIES They also sell stand alone power supplies for the ADAM console. -----Original Message----- From: Dave Dunfield [mailto:dave04a@dunfield.com] Sent: Monday, April 26, 2004 11:54 AM To: cctalk(a)classiccmp.org Subject: RE: Tapeless Adam ? >>Found a Coleco Adam on the weekend. >>It's a bit odd in that it has NO tape drives. It does not >>look as if one was removed - there are filler plates in both >>tape compartments which look original. >>Anyone know if there were any variations of the Adam which were >>sold without any tape units at all? >Doubtful, looks like someone just pulled the drive and replaced it with a >"dummy" Thats kinda what I'm guessing, however it *looks* factory - no signs of prying, scraping and other giveaways that tell you it was modified. >eColeco sells ADAM units like this as just a game console. Curious - are these "game consoles with a printer", or do they have some other means of powering them (the Adam is powered by the printer). Regards, -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector. http://www.parse.com/~ddunfield/museum/index.html *************************************************************** This E-mail is confidential. It should not be read, copied, disclosed or used by any person other than the intended recipient. Unauthorized use, disclosure or copying by whatever medium is strictly prohibited and may be unlawful. If you have received this E-mail in error, please contact the sender immediately and delete the E-mail from your system. ***************************************************************

20 years, 2 months

Bad Tapes. 1 bit of info...

by aek＠spies.com

There was a report on a NYC audiotape archive just now. Mentioned was a common problem of tape flaking and one last ditch solution was to bake the tape in a convection oven for 24 hours, presumably to re-seat the oxide into the plastic. Sounds like the temperature has to be exactly right. == Google "Sticky Shed Syndrome" Common problem with hydroscopic decomposition of the tape binder. A temporary solution is to dry the tape out by baking.

20 years, 2 months

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test-drb April 2004