test-drb January 2006

test-drb@ccmp.vtda.org

240 participants
511 discussions

by ajp166＠bellatlantic.net

I take it that I can notify the owner that these systems are of no interest to anyone here. I cant take them, too much and too big. Allison > >Subject: Available for pickup. > From: Allison <ajp166 at bellatlantic.net> > Date: Mon, 26 Sep 2005 18:42:52 -0400 > To: cctalk at classiccmp.org > > >I do not hold these but I've been asked if I want them. > >Allison > > >>I sent this earlier to arrl.org, but I thought I would also try here. These >>are free to the first taker, but that may be the rubbish man ! >>Apollo 400 >>Apollo 715s/50 >>Apollo 715t/50 >>(2) Apollo 715/64 >>Apollo 400 > >

18 years, 11 months

Quick favor needed -- re: fanfold paper

by news＠computercollector.com

I need someone to make a hi-res scan of a single sheet of 8.5x11 fanfold paper with the perforated side holes still attached. I'm making a graphic image for a web page background, but without having a sheet handy, it's hard to gauge the proportions of where the holes should be. Oh, and I need it five minutes ago. :) Thanks! ----------------------------------------- Evan Koblentz's personal homepage: http://www.snarc.net Computer Collector Newsletter: >> http://news.computercollector.com Mid-Atlantic Retro Computing Hobbyists & Museum: >> http://www.marchclub.org >> http://groups.yahoo.com/group/midatlanticretro/

18 years, 11 months

AC power on front panels

by leeeedavison＠yahoo.co.uk

> Has anyone come up with an elegant solution to being able to > use the front panel power switch while keeping it safe? Can't you sleve it as is done with the power switch on an AT power supply? Lee. .. ___________________________________________________________ To help you stay safe and secure online, we've developed the all new Yahoo! Security Centre. http://uk.security.yahoo.com

18 years, 11 months

This weekend

by brian＠quarterbyte.com

> Time to go rent an abandoned car factory I would think. Or an abandoned biscuit factory :) Norm Aleks and my 4331 system is at the Sunshine Biscuit Factory in Oakland, CA, in a room that used to be used to store Cheeze-Its dough. Brian

18 years, 11 months

cleaning keyboards in the dishwasher

by dwight.elvey＠amd.com

>From: "Chuck Guzis" <cclist at sydex.com> > >On 1/13/2006 at 2:15 PM Dwight Elvey wrote: > >>Hi >> For these things, it really depends on the flux used. You need >>to be using a higher temperature flux. >>Dwight > >I'm using a hydrochloric acid-ammonium fluoride liquid flux, which ought to >do, no? > >Cheers, >Chuck > Hi Chuck I'm not sure, not being an expert, but your problem sounds like an issue of the flux not holding up to the temperature. You should check with the manufacture of the solder to find what they recommend. Also, sometimes welding supplies will have some info as well. If the flux burns off too soon, it won't do any good. The instant the surface oxides, the solder stops flowing. Dwight

18 years, 11 months

cleaning keyboards in the dishwasher

by dwight.elvey＠amd.com

>From: "Chuck Guzis" <cclist at sydex.com> > >On 1/13/2006 at 2:05 PM Sridhar Ayengar wrote: > >>Bismuth-tin solder with high-temperature soldering gear works well >>enough, doesn't it? > >Not really--"high temperature" is relative in this case. I use an >acetylene-air torch for soft-soldering; many use oxyacetylene (you're >dealing with a big hunk of metal and local heating is more improtant that >getting the entire part hot). The problem is that joints are of the >plumbing sort--you depend on capillary action to form the joint and fill >any small gaps. Eutectic Sn/Pb is ideal. The substitutes, including some >rather expensive indium alloys that I've tried, just don't flow the same >way. > >I don't know of any plumber who perfers lead-free solder to the leaded >kind. Hi For these things, it really depends on the flux used. You need to be using a higher temperature flux. Dwight

18 years, 11 months

System 3 Microfiche (maybe) on ePay

by jwstephens＠msm.umr.edu

I think this listing may be of interest to collectors of old IBM stuff. I don't think the seller has the slightest idea what the fiche document, and they copied the term "System 3" into the listing like they were clueless. Any system 3 people may want to pounce. 7736615631 Jim

18 years, 11 months

RL02 write faults, fixed it! Another cable mistake

by henk.gooijen＠oce.com

> [snip - very instructive part] > > However, I now know much more about RL drives than I care to, and > can fix the logic if it ever really does fail :) > > -Charles Yes, working your way through the schematics, actually measuring the signals, makes you "learn" how something works - in detail! I know a little more about the M7859 11/34 console than I did, say 2 months ago ... - Henk, PA8PDP. This message and attachment(s) are intended solely for the use of the addressee and may contain information that is privileged, confidential or otherwise exempt from disclosure under applicable law. If you are not the intended recipient or agent thereof responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by telephone and with a "reply" message. Thank you for your cooperation.

18 years, 11 months

Hard drive carriers

by elf＠ucsd.edu

Hello all, Regarding the recent talk about using hard drive carriers (in order to reduce the number of machines in your environment, etc.), has me wanting to invest in a few. Is there a specific brand anyone uses? I have one drive carrier I purchased years ago (at a local mom & pop computer store for something like $15) -- a cheap, no-name brand (can't even find a brand name on it). The drive connector in the tray is flimsy, it is a pain in the a** to get the drive in and out of the tray, and it just generally doesn't give me a real cozy feeling of sturdiness when using it. So I ask, are there specific brands of these carriers people use? Where do y'all purchase them? Regards, -Eric

18 years, 11 months

Non-random numbers (SIMH PDP-8)?

by charlesmorris＠direcway.com

I was playing blackjack (BASIC program) on SIMH with my OS/8 RL02 image. I noticed that every time I played the game the cards drawn were identical, both by the dealer and myself! A loop to print RND(0) ten times always shows the same ten numbers... doesn't sound very random to me :) Is this an artifact of SIMH, or BASIC? (Will it go away when I run the program on the real 8/A)? thanks Charles

18 years, 11 months

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test-drb January 2006