test-drb December 2018

test-drb@ccmp.vtda.org

174 participants
203 discussions

Latest batch of goodies from Sellam's VWoCW plus 10% off!

by sellam.ismail＠gmail.com

Merry Christmas and Happy Hanukkah, folks! And holiday greetings to the rest of us celebrating Festivus! It's time to treat yourself or your favorite nerd for the holidays, so as my gift to you I'm offering 10% off anything with a listing date prior to 2018. Check the "Date Added" column in the warehouse item listings--anything listed in 2016-2017 is 10% off!. If you're a previous buyer (I know who you are) the 10% off applies to anything! Here is the latest batch of listings: Xerox 6085 "Daybreak" CPU Xerox 6085 IOP Input-Output Processor (C4) board Xerox ViewPoint 2.0 Software Installation Xerox ViewPoint 2.0 Documentation Set (Volumes 1-6) Xerox Desktop Publishing Series: Ventura Publisher Edition manuals Xerox Telecopier 7032/7033 Facsimile Terminal User Handbook Connect Computer Z183-2 WonUnder II Western Digital VGA Plus C Future Domain Corp TMC-830 Iomega PC2B SCSI Controller Iomega PC2B50F SCSI Controller Orchid ProDesigner VGA Silicon Graphics O2 Workstation IBM Type 7208-001 External 2.3GB 8mm Tape Drive BM BM-401 486 CPU Breakout Adaptor Compaq DeskPro DSM Monitor HP 2641A/2645A/2645S Display Station Reference Manual HP 2647A Graphics Terminal Manual Set HP 13290A/2649A Data Terminal Reference Manual Advanced Gravis Ultra Sound (boxed) Universal Data Systems 212 LP Modem (boxed) You can get to the Virtual Warehouse of Computing Wonders main index to find links to these and many others items here: https://docs.google.com/spreadsheets/d/1I53wxarLHlNmlPVf_HJ5oMKuab4zrApI_hi… As always, please contact me directly by e-mail via <sellam.ismail at gmail.com> to make an order or an offer. Thanks! Sellam

5 years, 5 months

Researching IBM rare equipment from 50s to 80s

by peter＠vanpeborgh.eu

Fellow geeks of more mature vintage, Do any of you guys know whether it is possible to find out to whom any IBM equipment was sold back in the day? (Still chasing IBM 2321 Data Cell - I never learn!) Many thanks, peter || | | | | | | | | Peter Van Peborgh 62 St Mary's Rise Writhlington Radstock Somerset BA3 3PD UK 01761 439 234 || | | | | | | | |

5 years, 5 months

Documation TM200 card reader - pinch roller restoration

by guykd＠optusnet.com.au

Previously: Manual for Documation TM200 punched card reader Restoration of the mechanics of my TM200 punch card reader progresses. There's a writeup here: http://everist.org/NobLog/20180922_data_in_holes.htm#tm200 Currently I'm machining a mold to cast new pinch rollers - and there's the rub (ok kill me.) The old rubber rollers were decayed to gunk, so there's no chance of measuring their original dimensions. >From the mechanics, if they were just touching the steel capstan rollers they'd have been 27.1 mm Dia. The mechanics has no adjustment or spring tension on the pinch roller positions. Their shafts are in fixed position, so all the spring is in the rubber of the rollers. Someone who recalls seeing one of these working, says the rubber rollers turned while the capstans turned, so they must have been actually pressing on them. But how much squish? Experimenting with a similar diameter silicone roller (from a photocopier) it semes like 0.2mm of 'squish' without a card, seems to give a good grip on a card. The cards are 0.1mm thick. That gives a resting roller diameter of 27.5 mm. Obviously too much 'squish' is undesirable since the roller would get permanently deformed when left idle in one position. The 2-part silicone I'll be using for first try at casting rollers has a cured Shore A durometer rating of 60. I'm hoping someone might have some knowledge of how much punch card reader pinch rollers should press against capstans. Does 0.2mm squish seem right, or am I way off? I can try multiple iterations, boring the mold out a little more to make the rollers bigger. But it would be nice to get it right first time. I don't yet have a TM200 manual, but the M200 manuals seem to cover pretty much identical mechanics. They give no dimensions for the rubber rollers, no mention of the contact pressure, or even diagnosing if the rollers are worn. There are significant differences in the electronics between the M200 and the TM200. I'm really going to need a manual with schematics once I get to debugging and interfacing the electronics. Bitsavers only has M200 manuals, and Al Kossow doesn't seem to have had any luck with > I'm pretty sure I just saw a paper copy of the TM200 manual > which is different from the M200. I'll have to dig around to > try to find it again. If anyone can suggest a source. I'd like to buy a paper copy. Which I'll scan and post at bitsavers etc. Guy

5 years, 5 months

AMD Am8177 Datasheet

by jnc＠mercury.lcs.mit.edu

> From: Kyle Owen > Gah...just found it. We've all been there... :-) Noel

5 years, 5 months

AMD Am8177 Datasheet

by kylevowen＠gmail.com

Does anyone have a datasheet for an Am8177 shift register? Seems to be ECL. Thanks, Kyle

5 years, 5 months

NCR aka NATIONAL 304 Computer - any left in physical form?

by couryhouse＠aol.com

NCR aka NATIONAL 304 Computer - any left in physical form? ? Thanks? ? Ed#? ?www.smecc.org?

5 years, 5 months

Manual sources

by mark.kahrs＠gmail.com

Well, as I am sure many of you know, ManualsPlus was "acquired" by the Internet Archive. This story captures the effort: https://www.theatlantic.com/technology/archive/2015/09/introducing-the-arch… Jim Tucker is still selling things on ebay. When we'll see the manuals from the archive, who knows?

5 years, 5 months

IBM 3850 cartridge

by peter＠vanpeborgh.eu

Do any of you more venerable IBM types know of a way to open one of these to extract the tape contained inside? It looks a bit fiddly but there might be a trick to it. (Apart from having the mass storage system itself.) Many thanks to you for your information and also to Mr Kossow who kindly let me have some of these. Peter vp || | | | | | | | | Peter Van Peborgh 62 St Mary's Rise Writhlington Radstock Somerset BA3 3PD UK 01761 439 234 || | | | | | | | |

5 years, 5 months

Labtool48 Programmer

by holm＠freibergnet.de

Hi all, I've got an Advantech Labtool48 parallel Port Programmer lately for fifty bucks. I've got it w/o any Software, cable or documentation and now I have a few questions. 1. Is the parallel Cable a straight one to one Cable? The Labtool48 has an male connector on the back so a standard cable wouldn't fit.. (ok, think I can reverse engeneer or at least try that if needed..) 2. This isn't a Labtool48UXP, the UXP Version seems to have an USB connector additionally, doesn anyone know if the Software that Advantech provides (http://www.aec.com.tw/software_files/LT48UXP_83203.exe) will work with the Labrtool48? 3. I want to programm Altera PLD's EPM7160LC84. On many sites on the web can be read that Advantech is providing an PDF with the required "pin swapping Table" so the user can build adapters himselves..this seems to be history, the link http://www.aec.com.tw/products/adapters.pdf is dead and the wayback machine shows that it is dead for many years. Doens someone has possibly a copy of this pdf? TIA, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583 info at tsht.de Fax +49 3731 74200 Tel +49 3731 74222 Mobil: 0172 8790 741

5 years, 5 months

SunOS 2.4 Exploit

by seefriek＠gmail.com

I believe SunOS 2.4 is old enough all you need to do is delete the password hash from /etc/passwd to log in without a password. KJ

5 years, 5 months

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test-drb December 2018