test-drb January 2007

test-drb@ccmp.vtda.org

238 participants
538 discussions

TRS-80 stuff available in Stockton CA for pickup

by yakowenk＠yahoo.com

Hey, all, I've got mail from some guy with a bit of TRS-80 stuff available for pickup: 3 TRS-80 computers, a TRS-80 5 Meg Disk System, manuals, flopppies, etc. If you can rescue it, let me know. I'll forward replies to him. He's in Stockton CA, and I've told him we can probably arrange a pick-up and save him the hassle of shipping. BTW, I've been slacking on this for about two weeks now, so I'll have to double-check that the items are still available. But I wanted to send this to the list now, rather than checking with him first and running the risk of falling into procrastination-land again... Cheers, Bill. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

17 years, 6 months

Use of HCL to dissolve severe corrosion from NiCad or Alkaline Batteries or oxidation

by chrism3667＠yahoo.com

can you buy it in powder form? You mean you all apply hcl to a circuit board??? Aint there a less caustic substance for the job? --- cctalk-bounces at classiccmp.org <ploopster at gmail.com> wrote: > Chuck Guzis wrote: > > On 7 Jan 2007 at 10:12, Lyle Bickley wrote: > > > >> 1. I've only been able to buy gallon sized containers of the 30% HCL (Muriatic > >> Acid). That is very unwieldily to handle. A polyethelene containter with a > >> small "spout" (available at drugstores) is an easy solution. Just be careful > >> when transferring the acid from the gallon container to the poly container - > >> use a poly funnel - HCL is "nasty" stuff. > > > > Another caution--DO NOT STORE THE CONTAINER IN YOUR WORKSHOP OR > > WHEREVER YOU KEEP YOUR EQUIPMENT! Muriatic acid is hydrogen chloride > > gas dissolved in water and tends to "fume". Which means that if the > > cap on the container is slightly loose or the container is cracked, > > you'll be in for an eventual surprise. > > > > I kept a gallon of muriatic stored in my workshop and thought the cap > > was screwed on tightly (it wasn't). After about 2 weeks, I noted > > that all of my cast-iron shop equpment was coated with a fine > > dappling of rust. My HCl is now stored in a weatherproof container > > out-of-doors. I can't imagine what such fumes might do to the > > innards of a disk drive. > > > > For a somewhat tamer substitute, one might try sulfamic acid--a > > powder dissolved in water and normally used for cleaning masonry (as > > is muriatic acid). You can often find it at stores that deal in > > ceramic tile supplies. > > You can store hydrochloric acid dilute without worrying about it fuming. > > Peace... Sridhar __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

17 years, 6 months

My second Mac

by cclist＠sydex.com

I picked up another Mac yesterday--a beige 300 Mhz G3 with 256MB, and a 15 GB hard disk. It's also got a USB adapter plugged into one of the PCI slots. It's running OS 9.something. Set me back $20. Were Zip drives a standard part of these things? On a side-by-side with a Win2K P1 225MHz system with the same amount of memory, I think the WIndoze box has snappier response and has better video. For you Mac addicts, what do you think should be my next step in getting the most out of this box? I don't care for the Mac monitor that came with it--has anyone tried hooking up a fixed-frequency SOG workstation monitor to it? I've got a nice HP/Sony model that might be a candidate. Cheers, Chuck

17 years, 6 months

garbled display

by chrism3667＠yahoo.com

it only helps if youre going to swing by and unseat the 80186 from its bizarre cage. I aint touching one ever again. But thanks all the same Roger :) __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

17 years, 6 months

laptops and 5.25 inch floppy drives?

by chrism3667＠yahoo.com

no actually. I should have specified no older then a 486. For creating/dumping images and whatnot. Some early lt floppies were just slender versions of dt units __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

17 years, 6 months

garbled display

by chrism3667＠yahoo.com

actually rows and columns of blocks of ascii chars, some blinking. To which Im greeted upon switching on a Tandy 2000. Typically what does this indicate? __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

17 years, 6 months

laptops and 5.25 inch floppy drives?

by chrism3667＠yahoo.com

not seemingly likely w/the current crop of usb units, but would it be possible to get a 5.25 to work in say an older lt w/an integral 3.5? __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

17 years, 6 months

Use of HCL to dissolve severe corrosion from NiCad or Alkaline Batteries or oxidation

by lbickley＠bickleywest.com

In response to an offlist question, here's a bit more info on HCL use: 1. I've only been able to buy gallon sized containers of the 30% HCL (Muriatic Acid). That is very unwieldily to handle. A polyethelene containter with a small "spout" (available at drugstores) is an easy solution. Just be careful when transferring the acid from the gallon container to the poly container - use a poly funnel - HCL is "nasty" stuff. 2. Use as little acid as possible on a board/module/motherboard. Before applying the acid I look over the board - and discover the corroded/oxidized components and apply the acid directly to the components. The acid will flow to other, non-oxidized components, but it won't hurt them. A toothbrush can be used to scrub stubborn corrosion - but I've found it is rarely needed. 3. After applying the acid, rinse it off as soon as the "fizzling" stops. Use plenty of cold water to eliminate all traces of the acid. Then use a final rinse of distilled water. 4. I avoid putting acid on adjustable, semi-sealed components, such as potentiometers, variable capacitors, enclosed switches, etc. If they are badly corroded - replace them. 5. I use a hair dryer set at medium-heat/high-speed to dry the board and under chips, etc. Drying will also eliminate any traces of residual acid that may have been left behind. (HCL turns to a gas when it "drys out"). Cheers, Lyle -- Lyle Bickley Bickley Consulting West Inc. Mountain View, CA http://bickleywest.com "Black holes are where God is dividing by zero"

17 years, 6 months

From another list: 4D-series (POWER & Professional) SGI gear

by compoobah＠valleyimplants.com

Can't remember if I sent this- found it on a different list and I can forward mail > EDIT Jan,7: No one's interested into old stuff anymore? If no one > claims them they will go in the trash real soon! It'd be a shame... If > you're not interested in taking them all there's loads of perfectly > working boards, IP7s, IO4s with plenty of SCSI, GTX graphic set, power > supplies, backplanes, skins, etc, etc. Anyway let me know. > > > Hi all, > > I have a few older Silicon Graphics systems up for grabs if anyone is > interested. There's three 4D Predator racks, a deskside 4D/70GT and a > Challenge XL. All the machines are complete except for the Challenge > which is missing the CPU and memory boards. Except for that everything > is there. They also come with a few boxes of parts, cables, keyboards > and such. A 17" SGI monitor is also part of the lot. > > Pictures here: > http://web.newsguy.com/AlexPhotos/sgi.html > > Everything is free if you take them as is. If you only want boards or > other parts, I'll charge a small fee for the packaging material and > for my time. > The machines are located in Montreal, Canada. Looks like the Challenge might not have processor boards, but the other systems seem to. The 4D/70 is a Twin Tower

17 years, 6 months

My second Mac

by chrism3667＠yahoo.com

the stark reality is Im not all that confident using the term dongle. I think they may have been called that, but Im not sure :(. Some had dials by the way. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

17 years, 6 months

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test-drb January 2007