test-drb September 2009

test-drb@ccmp.vtda.org

163 participants
196 discussions

by ethan.dicks＠gmail.com

Hi, all, I have the opportunity to pick up a couple of NCD 19r mono Xterms locally, if I want (someone else declined due to lack of basement space). I have not tested them, but I can. Doing a bit of digging, I see that folks have offered them on numerous mailing lists over the years (including suns-at-home, and I think here) and frequently get no takers, so it sounds as if they have no assignable cash "value". Does anyone here have any experience with them, how hard it is to find the software for the tftp repository? (I did a non-exhaustive search and haven't found any yet) Besides performing their obvious function (serving a mono framebuffer, mouse, and keyboard), are they neat in any way, or are they part of the dustbin of history? They are kinda large, so I'm not exactly eager to move *more* large CRTs into my house without good reason. I'm seeking a reason. I already have an HDS xterm that I got working some time back, but it's just a slab - you use your own monitor. *That* doesn't take up too much space on the shelf. A large glass bottle does. Thanks for any input and/or stories about the NCD 19r. -ethan

14 years, 7 months

Looking for info on three multi-digit LED assemblies

by tshoppa＠wmata.com

> The newer ones are definitely 3 digits, gap, 2, smaller gap, 2, small > gap, 2, even though one of them has 4 leading digits, only 3 are > driven by the swath of MC14543s, so I'm going to go with DOY, > hrs/min/sec for both of the newer units, which does suggest precision > timekeeping devices. Certainly sounds like Julian-day-hour-minute-second to me, just like all the timecode displays I've ever seen going back a good chunk of a century :-). I looked through the truetime schematics I have and none of yours match exactly so maybe some other brand. Some similar displays are sometimes used in video and movie editing and production (think those LED slates), although there the 3- or 4-digits would probably not be day, but some sort of sequence number, dunno for sure, I only briefly touched Hollywood :-) Tim.

14 years, 7 months

ISO HP-UX 9.10 install CD

by hp-fix＠xs4all.nl

-----Original Message----- From: "Al Kossow" <aek at bitsavers.org> To: classiccmp at classiccmp.org Sent: 09/02/2009 21:51 Subject: ISO HP-UX 9.10 install CD I need to get a system running to recover some data from some HPIB drives. Does anyone have one to spare, or an ISO image of it?

14 years, 7 months

Looking for info on three multi-digit LED assemblies

by tshoppa＠wmata.com

> So do any of these LED assemblies ring a bell with anyone in terms of > type or brand of equipment? Time code displays? Google terms: IRIG, Symmetricom, Truetime Getting sales attention from Truetime/Symmetricom has been very hard the past couple of years. If the digits weren't grouped for time codes, then pinball machine score readouts MC14543/CD4543 is actually a very nice BCD to seven segment decoder if not the very beefiest output current Tim.

14 years, 7 months

NCD 19r monochrome Xterm

by devonstopps＠gmail.com

I have the firmware for these kicking around somewhere. They can also be used as a serial terminal (after loading the firmware) and have sockets for ROM firmware.

14 years, 7 months

Kaypro 4 terminal capabilities

by tmanos＠CONCURSIVE.com

Chuck, Thanks, that did it! Tom ----------------------------------------------- Chuck said: The Kaypro uses an enhanced LSI ADM-3A set of escape sequences to control the display. See section 16.0 in the Kaypro technical manual at http://bitsavers.informatik.uni-stuttgart.de/pdf/kaypro/1484- D_KayproTechnicalManual_Dec84.pdf

14 years, 7 months

Kaypro 4 terminal capabilities

by tmanos＠concursive.com

Hi All, I have a nice, working Kaypro 4 machine running CP/M 2.2, and am beginning to do some assembler, pascal, and c programming on it. I'd like to do some games in the near future but have been unable to find any documentation on addressing the screen. Is this thing just a dumb terminal (I don't think so), or are there some terminal capabilities someone can tell me about or point me to? TIA, Tom

14 years, 7 months

OKIstation 7300

by rescue＠hawkmountain.net

Well... I'm now in possession of one of these... sadly... it doesn't boot... the hd doesn't seem to spin up.... I know nothing about these.... Anyone have any info on them ? Have boot media ? procedure on checking if drive is recognized in bios... (so far bios seems to have one letter commands, r for register dump, m for manipulating memory, b for boot, etc... no help command, no ? command) I was really hoping this thing would boot... if so, I was then going to pull the SCSI drive and image it.... This is an i860 based system. I've found few references on the net to a SVR4 variant called OKIX ? -- Curt

14 years, 7 months

Looking for info on three multi-digit LED assemblies

by ethan.dicks＠gmail.com

I have a box of LED displays that I picked up all at once from a Hamfest, probably either Dayton or Mansfield. There are enough similarities between the three types that I figure they are from the same maker. I don't have any easy way to take pictures right now, but I can post the relevant characteristics to see if anyone has any recognition. They seem easy enough to reverse-engineer, so while I'd love schematics or other documentation, I'll be able to use them without. I'm mostly curious what equipment they might have come out of. #1 - the oldest style. Marked "assy 4000123-101". Three double-digit MAN6610 displays with a "336" date code on a "front board" attached to a driver board by dozens of individual 330 Ohm 1/4w resistors used structurally as well as electrically. The driver board has six 74LS47s with date codes of "231". There are four lugs on one short edge of the board with cut wire stubs, E1 and E2 have orange wires, E3 is blank, E4 has a black wire - +5V and GND. The data comes in on 30 individual wire-wrap stakes with the stubs of the old WW wire still on them, BCD data plus latch x 6. #2 - the middle board in age and appearance. Marked "assy 4002244", with 4002243-1 on the front, it's a newer board with a solder mask, and has *five* dual-digit LED displays, HDSP-K121s, grouped as 4 digits and three pairs of digits - as if it could display year plus hrs/min/sec or DOY plus hrs/min/sec. It uses an unusual (to me) driver chip - *nine* of a Motorola MC14543 (date code 9026) which the datasheet tells me is suited for LCD driving. It also has the same power lugs on the short edge, E1-E4 with the same color stubs. There are 49 WW pins around a long and the opposite short edge. They appear to be strangely numbered, first in nine groups of four, then with ascending numbered pins adjacent to the groups (probably BCD plus latch), with the last four pins over on one short edge. Both of these displays have pins that are not aligned nor spaced to permit a ribbon cable or molex or Berg connector to easily attach, and in fact, both still have wire-wrap wire stubs, so they appear to have been somewhat permanently attached to their surroundings. They also take an enormous number of pins, but would be trivial to drive from 4-bit counters and such (thus the newer one would make a perfect display for a DOY+TOD clock made from discrete TTL or CMOS). #3 - much more modern design. Marked 4005935-1 on the back and 4005936-101 on the front. It has nine single-digit hpHDSP-E103 displays (date 852) driven by a pair of Maxim MAX7219CWG (date code 9611) 8-digit clocked-serial-interface LED drivers. It's physically grouped as three digits, then three pairs (DOY+TOD), and comes with a red plexi bezel with "error" over the bottom edge of the "single hours" digit and "dropout" over the bottom edge of the "single minutes" digit. Its connector to the outside world is a keyed and latched 3M 3408 connector - 2x8 0.1" spacing. So do any of these LED assemblies ring a bell with anyone in terms of type or brand of equipment? The only thing that even closely resembles a company name or logo is NTUF-1 near the commonly-seen '94V-0' legend. Thanks for any hints or suggestions, -ethan

14 years, 7 months

Performance analysis for DOS apps?

by mbbrutman-cctalk＠brutman.com

I have been performance tuning my TCP/IP stack mostly by looking at the code and making educated guesses as to what needs to be fixed. I have just wasted a day rewriting the IP checksum routine in assembler for a few tenths of a percent improvement and I'm not terribly happy. :-) Is there a sampling profiler available that will periodically record the program counter and give me a histogram of what it finds when it is done? I'm thinking of something like oprofile on Linux. If it does not run in pure DOS but requires an emulation environment, that is ok too. I just don't know what any of the options are. Thanks, Mike

14 years, 7 months

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 September 2009