test-drb

test-drb@ccmp.vtda.org

101090 discussions

by jwsmail＠jwsss.com

I wonder if there is any better archive of the original DejaNews and peoples personal archives than Google Groups. When the Google Groups took over I know a lot of stuff I had participated in was dropped for not reason from Googles take on the import of data. And the BBSs I used were generally participating in such discussions as technical ones on hardware and the like, and went directly in some cases to usenet discussions as that became available. I'd be interested in hearing recollections.? I'd not recalled DejaNews in a long time. Main reason is this weeks Minix kerfuffle in the press.? I exchanged emails and comments with Tanenbaum when he published the system in his original book.? I don't have any info around at hand to look at what I did beside run it, but one of my main interests in any platform at that time was to be able to compile the system on itself. thanks Jim

8 years, 3 months

No subject

by spacewar＠gmail.com

My first FPGA-Elf (2009) used an FPGA board that is long-since obsolete, and while I updated it last year, it used an FPGA board that was not commercially available, and would have been frighteningly expensive if it was. For the most recent RetroChallenge, I updated the FPGA-Elf to work on a readily-available, inexpensive FPGA module, the Digilent CMOD-A7-35T, which is available for $89. (It can also be made to work on the $75 CMOD-A7-15T, but I recommend the -35T as it can provide more RAM.) As part of the RetroChallenge, I added emulation of the CDP1861 PIXIE graphics. Various photos can be seen at: https://www.flickr.com/photos/22368471 at N04/albums/72157687136287141 The project progress is described, in reverse chronological order, on my blog: http://whats.all.this.brouhaha.com/category/computing/retrocomputing/retroc… I designed a base PCB into which the which the CMOD-A7 module plugs. The base board provides for use of hexadecimal displays (either HP or TI) for data and (optional) address, a connector for the switches, a serial port, a composite video ports, and an optional MicroSD breakout board. A 5V 2A regulated wall-wart provides power. There are a few issues with the board design requiring a few traces cut and jumpers and resistors added, and I haven't yet written any software to deal with the MicroSD card. I plan to have a new revision of the main board made to correct the known issues. The switch PCB and bezel PCB don't need another revision. I still need to write some documentation, but I've put the rev 0 main board Eagle files, Gerber files, and PDF files of the schematic and layout at: http://www.frobco.com/e1000/ I'm willing to make bare boards available for those who want to build their own. This version runs at 256x the speed of a normal Elf w/ PIXIE. It's clocked at 56.34 MHz, but it executes all instructions in one-eighth the clock cycles required by an 1802. My 1861 implementation uses a dual-port RAM to allow the CPU to run fast while still producing normal NTSC-rate video. I plan to make the processor speed configurable to 1x or 256x, with perhaps a few intermediate choices.

8 years, 3 months

List Problems?

by healyzh＠avanthar.com

I know around the 20th I wasn?t the only one having problems. Are there still issues? Oddly enough, once I got access back to my Aracnet email address, and even though it has problems receiving email, it?s getting classiccmp just fine. Which a surprise, considering I didn?t think my Aracnet account existed for much of that time. OTOH, I?ve not received any from classiccmp at this address since the 20th. I seem to be having problems logging into the website to check my preferences, and can?t even get it to send me a password. It will be interesting to see if this makes it through. Zane

8 years, 3 months

PDP-8 chassis on eBay

by jnc＠mercury.lcs.mit.edu

> From: Dave > I managed to snag the chassis and what I hope is the matching cover. No, that cover is for a paper-tape reader. Noel

8 years, 3 months

looking at buying a pocket PC / PDA

by tomasparks.ts＠gmail.com

I am looking at buying a pocket PC / PDA, so I can write idea/notes when I am away from my computer the [Psion 3](https://en.wikipedia.org/wiki/Psion_Series_3) and [Psion 5](https://en.wikipedia.org/wiki/Psion_Series_5) look like good options, but i read about the hinge/screen issues I am leaning more towards the Psion 5 because of the easy of getting accessories, but it has more things to break but I am wounding about other options?

8 years, 3 months

PDP-8 chassis on eBay

by jnc＠mercury.lcs.mit.edu

So if someone's building an earlier -8 from bits and pieces, here: https://www.ebay.com/itm/192350321318 is something they might find useful - an empty chassis. (I'm not associated with the seller, although I've bought stuff from them before. They have some other PDP-8 stuff listed, too.) Noel

8 years, 3 months

snippit of R2E hisoty on the surplus market. DEALIN'' ELECTRONICS date??

by COURYHOUSE＠aol.com

Later in life when Bull owned R2E there was a z-80 with either just floppy or floppy and hard drive... I have a catalog of an outfit surplussing a group of them in USA called DEALIN'' ELECTRONICS in Palo Alto. Date? Ed Sharpe archivist for SMECC

8 years, 3 months

RK06 dirve

by billdegnan＠gmail.com

Does anyone out there have an DEC RK06 drive? Bill

8 years, 3 months

RL02 Spinup fails

by aaron＠aaronsplace.co.uk

Hi everyone, I have managed to hook up an RL02 drive to my PDP-11 (thanks to Dave Wade for the drives) . This took me longer than I thought it would - I tried with a flat ribbon cable with a DIY terminator going straight into board , but couldn't get it to work. Removed the terminator, and the fault light turned off. So that's positive. I tried to load a cartridge, which I had cleaned, inspected and generally appears to be in good condition. It started to spin up and I could hear it getting faster, but after 30-40 seconds the fault light returns. I made a short video demonstrating this: https://www.youtube.com/watch?v=japwBBodO8U According to the manual the fault light can appear for the following reasons: - Drive select error... Surely this would come on at the start? - Seek time out error... I'd have to hear the heads move first - Write current in heads during sector time error... Same as above - Loss of system clock... The fault light would be on from the start. - Write protect error... I don't think it got that far - Write data error... Same as above - Spin error... Is this the only remaining fault? So could the only cause be a spin error? I am wondering if the belt is slipping or something like that? Can anyone offer some advice? Thanks, Aaron.

8 years, 3 months

Sun part available, new old stock

by sales＠elecplus.com

I have no idea if these are old enough to be useful. Not affiliated with seller, etc. WTS Sun MODULES, NEW, qty 300, CALL, New Surplus Sun Accessories and Modules We have quantities of the following Sun part numbers. All stock is new/surplus. SUN 594-3394-01 SUN X4444A SUN SG-XPCIE1FC-QF4 SUN QLE2460-SUN-X0 SUN X6920A SUN X7282A-Z SUN X4422A-2 SUN X4447A-Z SUN X4445A SUN 375-3418-01 SUN X4213A SUN X5043A-Z SUN 375-3382-01 Contact us at sales01 at assetlc.com for additional details. Thank you. Asset Life Cycle, LLC Phone: (785) 861-3100 Fax: (785) 861-3193 sales01 at assetlc.com Cindy Croxton Electronics Plus --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

8 years, 3 months

Jump to page:

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

test-drb