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101090 discussions

What's the rarest or most unusual computer-related item, do you own?

by gkaufman＠the-planet.org

Re: What's the rarest or most unusual computer-related item do you own? Probably the rarest computer-related item I have is a 7AD7 flip/flop module from the Whirlwind I Computer. I'm also rather fond of my Intel Intellec4 System. I also have an Intel Intellec 4/40. - Gary

9 years

ISO: Honeywell DPS-6 things

by derschjo＠gmail.com

So I have this DPS-6 taking up space in my basement right now and I thought I'd put out a call again to see if anyone has anything at all related to it. I'd like to get the system running but I'm missing: - Mass storage controllers (of any type -- floppy, tape, hard drive) - GCOS 6 operating system media (in any format, any version, etc.) If anyone has any hardware lying around, or GCOS 6 media (or knows anyone who might), drop me a line. Alternately, if there's anyone out there who has a need for a DPS-6 parts machine, let me know... Thanks as always! - Josh

9 years

How do you clean your vintage computers?

by jnc＠mercury.lcs.mit.edu

> From: Ethan O'Toole > very dry clean air? 'Very dry' is _exactly not_ what you want! Air with decent humidity is less likely to build up static voltage. Dave B. had issues with static destroying components in his workshop in winter-time, when with heating, humidity is low. Noel

9 years

How do you clean your vintage computers?

by COURYHOUSE＠aol.com

hi speed airflow from leaf blower could set static charge and could knock out cmos? Just a wild though... Ed# In a message dated 1/19/2017 10:29:33 A.M. US Mountain Standard Time, billdegnan at gmail.com writes: On Thu, Jan 19, 2017 at 12:18 PM, Andy Cloud <r3trohub at gmail.com> wrote: > Hey all, > > So one of my recent acquisitions is looking quite grubby, outside it just > looks like surface dirt on the plastic, inside seems dusty/basement dirty. > > My question comes in two parts: > > 1. What do you use to clean the exterior plastic and/or metal if > applicable? I'm always worried about staining the plastic using strong > solvent... could you also include what type of cloth/sponge/anything you > use :) > > 2. You guessed it! What about internally? I've heard isopropyl is really > good, but how do you apply it? What do you use to apply it in order to make > the board shine as if it was just bought!? :D or if you use anything other > than isopropyl... > > I also have a bonus question, how do you ground yourself to ensure you > don't blow a component? Is an ESD wrist strap good enough? > > I absolutely love this group, really enjoyed your previous answers > regarding rarest/unusual machines!! > > -Andy > You really need a decision tree but there is my process 1. vacuum or blow out debris, outside. I have used a leaf blower before for really nasty machines, or very delicate vacuuming, all depends. Goal - remove all loose dust, particles, anything that would gunk up a cleaning process 2. Soap and water, inside and out. There is nothing wrong with using soap and water on a computer board, hand dish soap. Just dry well. Use a blow dryer or fan, depends on how delicate 3. Windex or glass cleaner for glass surfaces only. 4. Magic Eraser works great for plastic covers after you've washed with soap. Or use that whitening compound everyone uses for yellowed cases. Forget the name. 5. De-oxit for connectors and pins and such 6. Isopropyl alcohol for finishing touches, with a q-tip cotton swab. Use common sense. Teletypes for example would not be the same cleaning process as a surface mount laptop board. b Bill

9 years

Amazon Smile + VCF

by cctalk＠snarc.net

Vintage Computer Federation registered for Amazon Smile, which is a non-profit fundraising program. That means you can shop at https://smile.amazon.com/ch/47-4133714, get all the same things at all the same prices, and a tiny portion of it gets donated to VCF. Please consider helping VCF by using Amazon Smile whenever you can. Thanks, Evan

9 years

What's the rarest or most unusual computer-related item do you own? [Tek 4132]

by rickb＠bensene.com

> From: "Rick Bensene" <rickb at bensene.com> >> - A Tektronix 4132 Unix workstation using a National 32016 CPU and a >> 4.2bsd port called UTek >> Jon wrote: >Gee, how does it perform? I built a clone of a Logical Microcomputer Co. 32016 Multibus system and got it working. >But, it was glacially slow! I did have some memory that was likely a little slower than the stock memory, but it wasn't insanely slow. But, firing up certain things >like editors was just maddening. And, I'm not talking about Emacs, just vi. I eventually got a MicroVAX-II to replace it, and, yes, that DID have a cache to speed >up the memory, but it was quite a difference. Well...considering the era, it wasn't too bad. By today's standards, yeah, it's pretty darned slow. Vi starts up pretty quick, even with a couple of terminals running on it. It runs rogue pretty nicely, quick enough for multiple people to play it at once. The machine has 7MB of RAM, which really helps. Without additional RAM, there's only 1MB on the main board, and running it with just 1MB makes it incredibly slow. There isn't any external cache. It's fun to fire it up and just relive the days when I was on cloud nine to have my own personal Unix workstation that I built myself from parts. -Rick

9 years

What's the rarest or most unusual computer-related item do you own?

by seefriek＠gmail.com

From: "Rick Bensene" <rickb at bensene.com> > > - A Tektronix 4132 Unix workstation using a National 32016 CPU and a > 4.2bsd port called UTek Those seem quite rare now, especially if it works. You should preserve an image of UTek if possible. Any chance you have the install media? KJ

9 years

First ITS on Arpanet

by lars＠nocrew.org

And the award goes too.... DM! RFC 164 from 19 May 1971 says DM was to have NCP by end of week. RFC 211 certainly lists DMCG among other hosts. RFC 148 seems to imply NFP was working to some extent even earlier. RFC 342 from 15 May 1972 adds AI as a Network User. In RFC 344 is had become a server. RFC 366 from 28 June 1972 says "During this period the MIT Math Lab PDP-10 (Network address 198) became a server."

9 years

WTB - SPARCserver 1000

by other＠oryx.us

Looking for a SPARCserver 1000 or 1000e. Working or not. Top pic here: <https://upload.wikimedia.org/wikipedia/commons/0/09/SS1000-ssa.jpg> I'm located north of Dallas - 75077 Local preferred if possible. TIA, Jerry

9 years

Tested Wyse and IBM terminals and keyboards available

by sales＠elecplus.com

If you are looking for tested working legacy IBM terminals with tested complete M122 keyboards, please contact <mailto:bfloyd at southtexasproducts.com> bfloyd at southtexasproducts.com. He will sell the tested monitors with kbds for $85 plus shipping. Monitors might have slight screen burn, but nothing really bad. He will also do international shipping. He has 3151, 3196, 3197, and similar ones. Email for complete list and pricing. Some older terminals available, but maybe not the matching keyboards. No beam spring terminals or keyboards, no SSK, no unsavers, etc. Just M122 with terminals. Edit: Some Wyse terminals with kbds also available. Cindy Croxton

9 years

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