test-drb May 2009

test-drb@ccmp.vtda.org

204 participants
322 discussions

Looking for Mac Color Classic motherboard

by derschjo＠mail.msu.edu

Title says it all; rescued a Color Classic from Certain Doom, but the motherboard is beyond repair (somehow it's all rusted and nasty while the rest of the machine is clean as a whistle...) Anyone have a working spare to part with (or know a good place to get one cheap?) Thanks as always... Josh

15 years, 7 months

IBM 029 Keypunch has arrived

by roger.holmes＠microspot.co.uk

> From: Dave McGuire <mcguire at neurotica.com> >> After a long wait, and paying unexpectedly high fees to the freight >> clearance company I finally have my hands on my 029 keypunch. To my >> surprise it has an extra wide punching station which apparently is >> an extra read head which allows it to be fed with ready-punched >> cards and the text to be printed at the top of the card. An >> interesting bonus. It uses the same wire relays which have been >> discussed here recently, and fortunately I have a 303 ammunition >> box full of spares including many of these from a verifier I broke >> up some years ago which I kept for my 836 punch. > > Neat! Pics!! The eBay pictures are here: http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWNX:IT&it… or if that doesn't work just try item 290305495283 Or did you mean pictures of the 836 or the spares, or even the ammunition box? > > >> The rating plate shows .4kVA which is more than my Flexowriter >> transformer can handle so I have ordered a modern yellow industrial >> 110v socket so I can try it on a 3kVA transformer I have for an >> angle grinder. I have searched though eBay for normal US wall >> sockets and to my surprise cannot find them. I've tried all sorts >> of search terms but obviously have not hit the right combination, >> unless there is some law which prohibits them being sold retail or >> something like that. Probably me being stupid. > > They're available everywhere here, and are cheap. I'm surprised > that none are showing up on eBay...lots of smaller stores have good > luck dumping overstocked items on eBay, so pretty much everything > (new) shows up there sooner or later. > > -Dave >

15 years, 7 months

UHF plugs, was Jones plugs, or similar sorts of plugs

by roger.holmes＠microspot.co.uk

My first oscilloscope was a 40MHz valve model made by EMI. All the scope probes were connected by UHF connectors, they were reliable and I never had any problem with them. Incidentally at first it confused me because the displayed signal went through a long delay (hundreds of inductors) whilst the trigger did not so I thought there must have been an earlier signal which triggered the sweep until I read the manual and realised I was looking at the entire rise of the signal which triggered the sweep. A lovely bit of kit but, though I still have it, valves, nor any analogue circuitry are in my repairing expertise. It even has a 25MHz dual trace plug-in unit.

15 years, 7 months

Aid for Bletchley Park rejected

by jfoust＠threedee.com

http://news.bbc.co.uk/2/hi/technology/8064184.stm - John

15 years, 7 months

CI780 / CI750 manuals

by hoelscher-kirchbrak＠freenet.de

Has anyone got one or more of the following CI780 / CI750 manuals? - EK-CI750-TD CI750 TECHNICAL DESC MANUAL - EK-CI750-UG CI750 USERS GUIDE - EK-CI780-UG-001 CI780 User's Guide - EK-CIVAX-RM CI750 & 780 REFERENCE MANUAL Regards, Ulli #adBox3 {display:none;}

15 years, 7 months

Is this slashdot or Classiccmp? Re: Microsoft bashing

by fsmith＠ladylinux.com

On Sunday 24 May 2009 21:08:50 cctalk-request at classiccmp.org wrote: NOOO Actually .. The real holy war is VI vs EMACS :-) > OK, little-endian v. big-endian. -- Kindest Regards, Fran Smith CEO "No Problems Only Solutions" L.B. Network Consultants LLC. Baltimore, Maryland

15 years, 7 months

Wanted: LA30

by iamvirtual＠gmail.com

How rare are DEC LA30 terminals? I am looking to purchase an LA30 printer for my old PDPs. Let me know if you have one available. [Note: this is for historical completeness; I have several newer terminals/printers ;-)] Thanks. --barrym

15 years, 7 months

Jones plugs, or similar sorts of plugs

by mcguire＠neurotica.com

On Sun, May 24, 2009 6:49 pm, Warren Wolfe wrote: >>> I think "F" connectors are truly the worst. >> >> Horrible mechaniclaly, but I am told the RF performance is not that bad. >> I've not tested it, though. > > Many years ago, I worked in a calibration lab, and after (actually) > ranting about how crappy a connector an "F" type was, I tested one to > make a point.... and the damned thing was very clean. Weird. And, > they're very easy to put together, relative to BNCs, for example. That > the electrical characteristics are almost identical to BNC connectors is > something I still don't quite understand, although I believe the > instruments... (all HP equip. <Grin>) Wow, that's a big surprise. I do very little 75-ohm work, so I've never swept one on an analyzer. Visualizing the geometry of an F connector, it's hard to believe there aren't huge impedance problems everywhere. -Dave -- Dave McGuire Port Charlotte, FL

15 years, 7 months

Is this slashdot or Classiccmp? Re: Microsoft bashing

by aliensrcooluk＠yahoo.co.uk

Whilst I am not a fan of MS, or there products, I do believe you have missed atleast one version of windows - 2003. Was Windows XP really released in 2000? The reason I ask is that wasn't Windows 2000 released in 1999/2000 and then followed up very quickly with Windows ME (Millenium Edition)? The computers at work were recently (summer 2008) upgraded to Windows 2003. The policy at might place is to upgrade the computers every 2 to 3 years, and usually with an Windows OS that's 3-5 years old. Regards, Andrew B aliensrcooluk at yahoo.co.uk --- On Sun, 24/5/09, Warren Wolfe <lists at databasics.us> wrote: From: Warren Wolfe <lists at databasics.us> Subject: Re: Is this slashdot or Classiccmp? Re: Microsoft bashing To: "On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Date: Sunday, 24 May, 2009, 1:19 PM So, why is the same not happening with Windows?? Windows XP was released in, I believe, 2000, and the next version, Vista, wasn't released for SEVEN YEARS.? That is geologic ages in computer software years.? And, after seven years, Vista is the result?? There are MANY more computers now than in the early 1980s, and Microsoft has a MUCH bigger percentage of the market than Ashton-Tate ever dreamed of.? By all rights, Windows Vista should be software that approaches the borders of divinity.? Instead, each new release of Windows is like a beta test.? And, even if you give Microsoft a bye with Vista, after seven years and many millions of users, Windows XP should be utterly rock-stable.? HAH! Warren

15 years, 7 months

vme532?

by ken＠seefried.com

Longshot, to be sure...does anyone have a spare Heurikon VME532 board? This is a VMEBus card with a National Semiconductor 32532, local cache and 4MB RAM. I'm slowly porting NetBSD to it, and I have the only one I've ever seen. I'd like to have a backup before I get too far down the road. KJ

15 years, 7 months

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test-drb May 2009