test-drb December 2013

test-drb@ccmp.vtda.org

158 participants
140 discussions

by bobvines00＠gmail.com

> Date: Sun, 15 Dec 2013 15:08:15 -0500 > From: John Wilson <wilson at dbit.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: PDP-11/23+ serial ports > > On Sun, Dec 15, 2013 at 08:49:39AM -0800, Al Kossow wrote: >>>I did a tiny (practically free at OSH Park) PCB a while ago that adapts >>>10-pin ribbon cable to a DB25P (wired as DTE). >> >>Was anyone going to have any of these made up? >>John, do you have any right now? > > I have a couple left, which you're welcome to. And I'd be up for ordering > a bunch more just to have around, so let me know if you want to add to that. > > John Wilson > D Bit > John, How much will you need for each of these in case others want one (or two)? Thanks, Bob

10 years, 4 months

My TRS-80 Model 1 on Youtube (redone and in HD)

by terry＠webweavers.co.nz

It's longer than I would like but you can't short-change a classic. Here is a remake of my TRS-80 Model 1 video, now in HD. http://youtu.be/wgKWV8C3e7M

10 years, 4 months

Intel MDS 225 system being auctioned by Chicago Transit Authority

by jonas＠otter.se

On Sat, 14 Dec 2013 22:02:48 +0000 (GMT), ard at p850ug1.demon.co.uk (Tony Duell) wrote: > To bad the parallel port has also gone the way of the serial port. > Indeed. IIRC those USB to Centroincs printer 'cables' don;t allow you to > toggle individual port lines like that. They don't, at least not unless you write your own driver, and even then quite possibly not. I investigated these when I wanted to get my PROM programmer working. They come with Windows printer drivers and don't support ECP/EPP, so for any purpose except interfacing to a dumb parallel printer they are useless. > That's why I said an old-ish PC. Meaning one with a parallel port, not > (jsut) USB. > I got an old PC from a thrift shop for just about nothing. Plug in a network card and it connects to my local network and I'm in business.

10 years, 4 months

PDP-11/23+ serial ports

by b4＠gewt.net

Evening, Whilst I'm putting together a mouser order, I might as well order EVERYTING i'll need... With the PDP-11/23+, as I won't have the cabinet kit for it, does the 9-pin connector break out to standard RS-232 with baud rate configured via switchblocks? There's two of 'em, which one is primary? I'm assuming the pinout is documented in a manual somewhere as well, correct? -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects

10 years, 4 months

Telesensory/Speech Plus PR2020

by b4＠gewt.net

Hello, Anyone know anything about this or have any manuals? I plug in to its RS-232C port...and I get nothing. No input, no output. I would love to figure this speech synthesis thing out...but I don't have enough starter info! Any help appreciated!

10 years, 4 months

VAX KA52 or KA50

by shadoooo＠gmail.com

Hello, I have a VAX 400-100A with P_CACHE giving many errors. I suspect that a motherboard replacement would be necessary. Anybody has one to sell (also faster models like KA53 and KA54 could be good)? Thanks Andrea

10 years, 4 months

[N8VEM-S100:1808] S-100 68K CPU board V3

by LYNCHAJ＠YAHOO.COM

Yay! Woo Hoo! Great news! We have S-100 68K CPU running! Once this project is working maybe we could take another look at the 68360 P1 and/or 68040 SBC? This is really great news! Please post pictures and notes on the wiki! Let's get the word out! Thanks and have a nice day! You've already made mine! w00t! Andrew Lynch PS, this project has been in work for 2 years+ so I am very happy to see it working. From: n8vem-s100 at googlegroups.com [mailto:n8vem-s100 at googlegroups.com] On Behalf Of yoda Sent: Monday, August 12, 2013 10:40 PM To: n8vem-s100 at googlegroups.com Cc: monahan at vitasoft.org Subject: Re: [N8VEM-S100:1808] S-100 68K CPU board V3 Hi John Thought I would give an update - found the problem with memory - it turns out pin 1 of U2 on the board had a cold solder joint - guess it finally gave out. Reflowed the solder - the ground plane is a pretty big heat sink around pin 1 and can easily get a cold solder joint. Any ways after repairing that and playing with jumpers and switch settings I have 1 Meg of memory working with the S100-68K-V3. I also have the oscillator at 16MHz so the CPU is running at 8MHz and is a buss master. I am using the short S100 mother board from the group so it may have better noise immunity than the 22 slot mother board like you are using. I will do some more testing and want to boost the memory to at least 2 Meg for some experiments. I will get started next on the new monitor and getting data to load from the IDE CF card. Looks like I am on my way to getting CP/M 68K ported. I have a little clean up to do in a couple of areas (upgrade to latest compiler code, etc). Dave

10 years, 4 months

FA: Intel MDS720 system

by feldman.r＠comcast.net

The Chicago Transit Authority is auctioning off a number of items, including an Intel MDS 720 system. The auction is at http://www.ricklevin.com/auctions/Online-Auctions.aspx . Item number is 120. Current bid is $75. The system looks fairly complete, with several CDC disk packs and drive. I think it is for local pick up only. Auction ends in 5 days. ? Bob

10 years, 4 months

HP-150 Software

by robert.jarratt＠ntlworld.com

I have my HP-150 cleaned up now. I also have a 9121 with two single-sided floppy disk drives. I have cleaned them up, unblocking the eject mechanisms gummed up with dry grease. Now I want to get the system running. I have found the disk images on the HP Museum site. They are Teledisk images. I had not come across this program before, so I set up a DOS machine and tried using Teledisk to write to a double-sided double-density disk I have. It seemed to work, getting to the last track and then complained about the disk drive not being ready. I tried the disk in the HP-150 in any case and it booted up ok, although I think one of the files may not have been right, so perhaps the disk is not fully written. I wanted to convert the TD0 files to IMD format (Dave Dunfield's ImageDisk program) as that is more legal than using Teledisk, but ImageDisk seems to struggle reading the floppy disks that I managed to create with Teledisk. Has anyone converted these TD0 images to IMD already? Regards Rob

10 years, 4 months

Thinning out my collection

by nwfilardo＠gmail.com

Hallo, I'm clearing out some duplicates and mismatched material from the JHU ACM's collection of old stuff that I try to call a "museum". All of this is, at the moment, located in Baltimore, MD; local pickup can be easily arranged. Bringing things to Pittsburgh is also an option, though you?ll have to tolerate some latency (I?m infrequently at CMU, so?). The current list of materials is available at https://docs.google.com/spreadsheet/ccc?key=0AqVSp8UyoZ_bdDFGXy1JTWlfZ2FLMX… I?ve tried to be reasonable about initial asking prices, mostly going by what?s up on eBay right now. If I?ve wildly missed the mark, please let me know. Speaking of eBay, these are going up there eventually, but I thought I?d offer the mailing list first. Dead Trees and Media: Most of the dead-tree part is comparatively un-interesting or common, and so I would be happy to part with it for the cost of shipping and an entirely optional donation (can you spare $1?) towards the museum's efforts. Some appear not to be in any of the archives I know of; I'll cover shipping them to you for a promise that they end up there, if that's the case. :) Actual "Classic" Computers: Sun Enterprise E450, 3x Sun Ultra 5, Sun SparcStation 5, Sun SparcStation 4, HP 712/60 Other Bits of Technology: Sun UltraSCSI external enclosure for half-height disk drive (sparcstation decor) Sun SCSI external enclosure for full-height disk drive (IPC/IPX decor) Two reels tape, presumed identical; one labeled ?AMPEX 874 CATT 1600 CPI - 3200 FCI? Myricom Myrinet Fiber Switch (M3-CLOS-ENCL) w/ cards. Numerous MyriNET PCI-X Fiber cards. There's sure to be more stuff over the coming year, too, as just how much space the department takes away from us in our upcoming move becomes clearer. :'( Thanks! --nwf;

10 years, 4 months

← Newer
1
...
8
9
10
11
12
13
14
Older →

Jump to page:

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 December 2013