test-drb May 2001

test-drb@ccmp.vtda.org

273 participants
642 discussions

by Demon02554＠aol.com

hmm... i have a friend who may be able to pick it up for me and ship it to Virginia if you are unable to do so yourself.... well that depends how big it is....if nothing else my grandmother is goin to Cape Cod in a little bit also so i could get her to pick it up and then lug it back you have a picture of it? also can i get your address? thanks, Robert Cobbins

24 years

McI*netting

by pete＠dunnington.u-net.com

On May 11, 18:30, John Allain wrote: > Since McI's were being discussed. > I picked up what I thought was a 10bT adaptor > for Mac this weekend. It fits the quadra and had > an RJ45, but... It's marked 'Dayna EasyNet'. > Could this be right? Thought it would/should be > an Apple product, being such a basic need. Yes, it's a 10baseT transceiver. Lots of companies made transceivers to fit Macs, because the Apple ones were expensive. I've got ones made by Asante and Farallon. Allied Telesyn made the best (IMHO) ones, and had a whole range including fibre transceivers. There are some made by Sun that look the same -- but they only work on Sun workstations (different pinout). -- Pete Peter Turnbull Network Manager University of York

24 years

In search of 20ma to eia converter

by ajp166＠bellatlantic.net

Which PTR do you have thats 20ma? Allison -----Original Message----- From: Megan <mbg(a)world.std.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Thursday, May 10, 2001 11:49 PM Subject: In search of 20ma to eia converter > >I have an old serial paper tape reader which runs with >20ma and would like to use it to archive all my pdp-11 >(and some pdp-8) paper tapes. But I need a converter... > >Can anyone help? Any pointers to a simple schematic? > > Megan Gentry > Former RT-11 Developer > >+--------------------------------+-------------------------------------+ >| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | >| Unix Support Engineering Group | (home): mbg!world.std.com | >| Compaq Computer Corporation | addresses need '@' in place of '!' | >| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | >| Nashua, NH 03062 | "pdp-11 programmer - some assembler | >| (603) 884 1055 | required." - mbg KB1FCA | >+--------------------------------+-------------------------------------+

24 years

Looking for PDP 11 or Vax 11/7xx

by msell＠ontimesupport.com

If anyone here has a PDP 11 (such as a 44/84/34) or Vax 11/750 or 11/780 for sale, or know someone who does, could you let me know? I checked on a Vax 11/780 for disposal in Ohio but it went to the landfill already. * Sigh * I really appreciate it. Thanks! - Matthew Sell "One World, One Web, One Program" - Microsoft Promotional Ad "Ein Volk, Ein Reich, Ein Fuhrer" - Adolf Hitler Many thanks for this tagline to a fellow RGVAC'er...

24 years

FlipChips and data sheets

by tony.eros＠machm.org

I just got back from a trip and found a box of DEC FlipChips in my front hall! There's a fair number of them that appear to be new -- they're in little plastic bags, still stapled shut. Here's what I've counted so far: 1 A704 -10V power supply (double size) 3 B113 unused 3 B200 unused, 1 used 1 B401 1 B405 unused 4 A601 unused 1 A604 unused 1 R002 1 R107 unused, 1 used 4 R111 3 R113 2 R123 unused, 2 used 9 R141 5 R202 5 R203 6 R204 unused, 1 used 1 R302 1 R401 1 R405 1 R601 2 R603 unused 3 R650 1 S111 1 W650 There are also a bunch of "Flip Chip Modules Test Specs" data sheets with specs and schematics on them. I'll scan them and post a URL to the list. -- Tony

24 years

PDP-8e question

by celt＠chisp.net

A local electronics surplus store that I have frequented for years is going out of business next week (sigh). During this week's visit, the proprietor offered me a pallet of 10 'complete, working and loaded' PDP 8e's. When I asked what he wanted for them, his response was the typical 'make me an offer'. I got the feeling that if I passed, they'd end up on ePay. My collection is mostly 80s-era 8-bit micros (Apple, Commodore, etc), and Heathkit test kits; the only piece of DEC-ware I currently have is VAXstation 3100, so I have no idea what the PDPs are worth. If I take these things off his hands, what would be a fair offer? Cosmetically, they seem to be in great shape, and he powered a couple of them up for me (blinkenlights and such). I opened several of them up, and they were all filled with various cards. Space considerations probably will only allow me to keep two or three; I'll offer the rest here - whatever doesn't get claimed will be put on ePay. - Mike

24 years

Converting TTL monitor to Analog ( Screen Flicker)(Human visu al response OT)

by mmcfadden＠cmh.edu

Actually the human visual response in variable depending on what part of the field of vision is used. I can and many people can see flicker using your peripheral vision. Pointing your head away from the screen about 60 degrees and looking at the screen from the corner of you eye you can commonly see flicker. Rods and cones in you eye respond differently to color, flicker, and light levels. There are whole books on human visual response and lots of study of the field when looking at Radiological images. The new "hot topic" is Radiology is "soft-copy" reading of medical images, skip the film use a computer monitor. The problem is that clinical quality monitors cost $10,000-$20,000. Everybody want consumer grade monitors with the associated low cost. Brightness variability across the screen is routinely 25%. Examining images for lung cancer nodules or mammography lesions are examples. There is a huge equation that lists visual response which is tied to brightness, apparent contrast, wavelength, and size. Lots of human response is below the "threshold of awareness". If you can obviously see the lung nodule then your chances of treatment and 5 year longevity are reduced. Mike mmcfadden(a)cmh.edu

24 years

Micro Integration 5250 Gateway

by mikeford＠socal.rr.com

It may be too late for me to get more, but I found a case of Micro Integration 5250 Gateway products, looks like an ISA card and software for a PC to talk to a twinax AS400 system. I have a couple, may be able to dig out more, any interest? ************ Note the correction the company is Micro Integration, and I will dig and see if I can get a few more since there seems to be some interest. The boxes contain an ISA card, software, and a short adapter to TwinAx from something like a RJ45 I think. Some mental blur exists.

24 years

'Machine that Changed the World'

by brian.roth＠firstniagarabank.com

John, This is actually where I started my search. This has now become a quest for me. I did get a response from someone on the list who said they had the whole series on one tape but I haven't heard back from him. A friend of mine who besides being a VMS guru does audio/video editing, said his father had connections at a local PBS station and he would see what he could find for me. If I do find it, I will definitely make it available to the list. Brian. John Allain wrote: While refusing to believe that the video tape of this is unavailable, I Still couldn't find one for retail. I did however just find this, which you might like: The Machine That Changed the World http://ei.cs.vt.edu/~history/TMTCTW.html John A. Brian Roth Network Services First Niagara Bank (716) 625-7500 X2186 Brian.Roth(a)FirstNiagaraBank.com

24 years

Converting TTL monitor to Analog

by Lee.Davison＠merlincommunications.com

What sort of digital interface would such devices use? They'd have to have lots of wires, e.g. 26 or so pairs, if the thing is using 24-bit color. Perish the thought someone would use more color depth than that! It's hard to imagine they'd do that. The number of wires that have to transport high-frequency signal is the reason the analog is still so difficult to surpass. Not if a serial video bitstream were used. It's actually easier to use this than an analogue feed over any significant distance. Lee. ---------------------------------------------------------------------------- ---- This email is intended only for the above named addressee(s). The information contained in this email may contain information which is confidential. The views expressed in this email are personal to the sender and do not in any way reflect the views of the company. If you have received this email and you are not a named addressee please delete it from your system and contact Merlin Communications International IT Department on +44 20 7344 5888. ________________________________________________________________________ This message has been checked for all known viruses, by Star Internet, delivered through the MessageLabs Virus Control Centre. For further information visit: http://www.star.net.uk/stats.asp

24 years

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test-drb May 2001