test-drb April 2002

test-drb@ccmp.vtda.org

280 participants
1162 discussions

by Robert_Feldman＠jdedwards.com

Maybe just a matter of terms, but you want a foam that will compress some, but will not _permanently deform_. Some spray foams will compress, but will not rebound, leaving lots of room for parts to rattle around in. Bob -----Original Message----- From: Sridhar the POWERful [mailto:vance@ikickass.org] Sent: Wednesday, April 17, 2002 1:29 AM To: Chad Fernandez Cc: classiccmp(a)classiccmp.org Subject: Re: UPS was Re: Need Burroughs Tape Spec's <snip> Actually, you want noncompressible foam so that it doesn't get compressed, making empty space into which your equipment can fall. The main reason why newspaper is a bad packing material. You want something that will absorb shock *without* compressing. ^^^^^^^^^^^ Peace... Sridhar <snip>

22 years, 8 months

UPS was Re: Need Burroughs Tape Spec's

by ajp166＠bellatlantic.net

UPS... Another data point. We build RTD and RTD based assemblies, One time two probes were shipped to a vendor and we get an RMA request... Seems the probes were BENT. Now to appreciate that you have to understand these were .25" od probes (in a 316L sheath) and that inside a 1"od inconel thermowell (1"od .25" id) and they were BENT. UPS denied any culpability, they also paid. Allison

22 years, 8 months

Explain the NeXTStation "dim monitor" problem, etc...

by ajp166＠bellatlantic.net

From: jpero(a)sympatico.ca <jpero(a)sympatico.ca> >I wondered whom is right? > >cathode oxide or >heater coating? The heater looses emissivity. Also the oxide from ION bombardment and local heating from the electron beam gets burned. In some systems the HV PS tends to fade over time as well! I have a bunch of Acer tubes that did the latter when run at 800x600. Allison

22 years, 8 months

OT Letting it go (was Re: The CommodoreOne is near!)

by dquebbeman＠acm.org

> > From: Christopher Smith <csmith(a)amdocs.com> > > > > From: John Chris Wren [mailto:jcwren@jcwren.com] > > > > > But then, one thing I have noticed about the list, besides being an > > > excellent wealth of information and intelligent people, is that some don't > > > know when to let something end. > > > > You can count me in that category. I wonder whether it's typical > > of the kind of person you'd find on this list? > > > > As a general observation, technical types tend to push things > > further than most people appreciate in several cases. > > That's because we want to be *right.* It took me a long time to learn that > I'd rather be happy than right. They're not the same thing???? ;)

22 years, 8 months

OT Women & computers (was Re: The CommodoreOne is near!)

by acme_ent＠bellsouth.net

> From: John Chris Wren <jcwren(a)jcwren.com> > Jesus. And people wonder why women have a hard time in the industry. No kidding! My wife Debbie created our computer store/repair shop, but she ultimately quit because of the disrespect she received from customers. She has ten years experience with telecommunications gear, and Wintel boxes are not much of a challenge for her. Real conversation: Woman enters the store carrying a PC. Woman: "I need help with my computer. Can he help me?" (Points to me, busy swapping out a hard drive.) Debbie: Well, *he's* busy right now. How may I help you? Woman: I need help with my computer. When will he be available? Debbie: I don't know, but *I* can help you right now. Woman: You don't understand, my computer is broken and I need it fixed. Debbie: I can fix your PC if you will just explain the problem to me. Woman: Don't give me that crap! Women don't know anything about computers! This sort of thing happened almost every day. I don't blame Deb at all for leaving the industry. Of course, we're in Florida, so you have to expect some redneck attitudes, but from a *woman*?? Glen 0/0

22 years, 8 months

Does Anyone Have A

by Robert_Feldman＠jdedwards.com

Jonathan Engdahl mentioned the TI chip in the Simon game, which reminds me I have some TI TMS34010 chips and one TMS34010 User's Guide that I don' need. The chips are on B+H scanner (?) 3-board stacks with graphic RAM and SCSI and printer ports, and are a bit heavy. I can pull the TMS chip if anyone wants just that. Free for postage. Reply to robert_feldman(at)jdedwards.com.

22 years, 8 months

More 11/750 PSU Qs

by Lee.Davison＠merlincommunications.com

.. (and, as lab supplies, they don't get confused by being fed backwards, so I don't need the diodes)... Lab supplies have the diodes built in on both the + and - legs. running only one in "voltage source" mode, the other(s) in "current source" mode effectively. This is how any group of paralell power supplies works. So, I think if you use PSUs that have a current limiting circuit that is not only for short-circuit protection, but engages smoothly as current approaches the continuous rating of the PSU, You don't need this, in fact it can cause problems with groups of supplies hunting between Ilimit and Vlimit as load is transfered between them. you should be able to connect them in parallel with said diodes. Of course, these PSUs will not be the cheapest devices... As long as you match all the supplies to closer than the vf drop of the diodes nearly any supplies can be connected this way. However, this setup may get difficult if loading varies widely. Usually it isn't a problem as long as there is no minimum load requirement for the individual supplies. Another problem might be shutting down the entire system if one or more of the supplies fail: Use enough supplies so that one faliure is tollerable. you can then hot swap the dud supply. you wouldn't want the remaining ones to supply as much current as they can, keeping the voltage only half-way up and running your circuitry in brown-out mode. If the outputs are overcurrent protected then a faliure of too many supplies should shut down the whole thing. Trouble is it often doesn't work that way. 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 e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

22 years, 8 months

The Apple I on zdnn...

by bpope＠wordstock.com

News about the Apple I auction has appeared on zdnn @ http://zdnet.com.com/2100-1106-884678.html But they don't give a link to the auction site and they don't even mention Sellams' name! But at least it's getting *some* publicity... :) Cheers, Bryan

22 years, 8 months

UPS was Re: Need Burroughs Tape Spec's

by mcguire＠neurotica.com

On April 16, John R. Keys Jr. wrote: > UPS delivered my Burroughs tape unit model BU4180 yesterday but it was > destroyed. They must have dropped it from a high place as this thing > weighs in at almost 80 pounds. Things inside are pretty bad but I would > like to try and get it looking nice again, since the boards inside are > damaged I do not think I can get it to work again. Does anyone on the > list have repair manual for this model? I would like to see how he belts > go around the pulleys inside the case. Thanks I'm wondering how UPS manages to stay in business anymore. I've shipped about four things via UPS in the past year, and EVERY ONE OF THEM arrived damaged to some extent. WTF?? -Dave -- Dave McGuire "Mmmm. Big." St. Petersburg, FL -Den

22 years, 8 months

UPS was Re: Need Burroughs Tape Spec's

by Huw.Davies＠kerberos.davies.net.au

At 12:31 PM 16/04/2002 -0400, r. 'bear' stricklin wrote: >Here's a data point for you. And another (Australian one). Years ago when RZ28s were new disk drives and StorageWorks was a new concept I was Senior Systems Programmer looking after a VMS cluster (this story is sufficiently old it might even be on topic :-). In those days RZ28s in SBB were about AUD$3K and we'd ordered 20. My office overlooked the loading bay and I watched in horror as the delivery driver DROPPED the disks off the back of the truck onto the ground (say 4 feet). He couldn't understand why I wasn't going to sign for the delivery - I told him to take them back. Digital changed their preferred courier shortly thereafter..... Huw Davies | e-mail: Huw.Davies(a)kerberos.davies.net.au | "If God had wanted soccer played in the | air, the sky would be painted green"

22 years, 8 months

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test-drb April 2002