test-drb September 2011

test-drb@ccmp.vtda.org

159 participants
198 discussions

Kilobaud Micro, October, November 1979?

by wh.sudbrink＠verizon.net

Hi, Does anybody have a copies of the October and November 1979 issues of Kilobaud Microcomputing that they would be willing to scan an article from? I can't seem to find on the net anywhere. I would like to read: Thoughts on the SWTP computer system. Part 6. A close look at three of the six disk systems that are available for the SWTP. They are: LFD-400 from Percom, BFD-68 from Smoke Signal Broadcasting and MF-68 >from SWTP. KILOBAUD MICROCOMPUTING #34 Oct 1979 pg. 30 Thoughts on the SWTP computer system. Part 6 (continued). An in-depth look at the Percom LFD-400 disk system. KILOBAUD MICROCOMPUTING #35 Nov 1979 pg. 86 Maybe also, this if you are feeling generous: Product review of Percom's LFD-400 floppy disk system for the SS-50 bus. KILOBAUD MICROCOMPUTING #26 Feb 1979 pg. 80 Thanks, Bill

13 years, 3 months

Looking asr33 interfacing AND NEMA crypto machine help in Ojai, California

by billdeg＠degnanco.com

I AM FORWARDING A MESSAGE FROM A GUY WHO HAS SOME PROJECT WORK. I BELIEVE HE WILL BE WILLING TO PAY FOR SERVICE. IF INTERESTED CONTACT ME DIRECTLY AND I WILL FORWARD REPLIES TO JOHN "..I have a TELEX from the 70s (it was used when I bought it) that I last used in business in 1993. The motor runs but I can't get it to work. So, I need someone who can get it back into working order; although I won't be hooking it up to a Western Union line (if that is even possible today). I also want to be able to use it as a printer for my laptop. In addition, I have a Swiss NEMA machine (the Swiss update of the German Enigma crypto machine). It has output to a teletypewriter and I would love to see if my TELEX could be hooked up to it. I live in Ojai, CA, which is 36 miles South of Santa Barbara. Thanks, John Fickewirth .." END FORWARDED MESSAGE thanks Bill

13 years, 3 months

via LisaList - Fwd: Original Lisa 1 for sale

by toby＠telegraphics.com.au

I'll just leave this here. --Toby -------- Original Message -------- Subject: Original Lisa 1 for sale Date: Tue, 6 Sep 2011 15:23:12 -0700 (PDT) From: Eric Shapiro <eric at shapiro.org> Reply-To: lisalist at googlegroups.com To: LisaList <lisalist at googlegroups.com> Just finished restoring my Lisa 1. Comes with original software... most still shrink wrapped! Boots, runs, works. Updated with refurbished power supply, logic board, hard drive (X/Profile in addition, so it will run from flash drive, if desired). Twiggy drives, of course. Just trying to gauge if this is of interest to anyone. Last one sold on eBay in January for $15,000. -- ----- You received this message because you are a member of the LisaList group. The group FAQ is at http://lowendmac.com/lists/lisa.html To post to this group, send email to lisalist at googlegroups.com To leave this group, send email to lisalist+unsubscribe at googlegroups.com For more options, visit this group at http://groups.google.com/group/lisalist

13 years, 3 months

DEC PWS 500au boot failure

by CCTECH＠beyondthepale.ie

> >I went to fire up my DEC Personal Workstation 500au the other day and it >doesn't boot up any more :( > >I don't get anything out of video or the serial console and the >diagnostic lights all go out (00) rather than displaying an error or >booting message. The battery in it was dead and I replaced it but to no >avail. > >Anybody come across this before and know how to fix it? > I don't know much about the DEC Personal Workstation 500au but... Did the battery leak? I have a VAXStation 2000 which had a leaky battery which did some damage on the system board. (Fortunately, it was not severe and it is now repaired.) Check around the battery and near where the battery is connected to the system board as electrolyte can wick along the leads. Does it beep? I'm not sure about this one but some alphas will emit beep codes, if they fail before being able to access the console and some of the codes may be explained in the manual. Presumably there are some signs of life such as fans running and/or lights lighting? The next step is probably to check that the power supply is producing all the required voltages. Maybe there is a label specifying what they should be :-) Maybe not :-( Regards, Peter Coghlan.

13 years, 3 months

hp 9000/382

by emu＠e-bbes.com

Hi all, where could I find media for Pascal and basic for them? Preferably .iso images? Any chance, to find HP-UX for them? Cheers & Thanks

13 years, 3 months

Adding machine repair

by alexeyt＠freeshell.org

I have a pair of Olivetti Underwood 288s (10-key 7 digit input, 8 digit output adding machines), one of which I got from list member Patrick Finnegan a couple of years ago, and one which I found in a local thrift store this summer. Finding the second one inspired me to try to get them working... and I am rather out of my depth. The only electrical part (the AC induction motor that powers the mechanism) works fine in both, but both have other, mechanical issues. I've run them some under electrical power and spent a lot more time slowly turning the mechanism by hand, trying to work out what it's doing. Both have 'sticky digits', i.e. the mechanism that both rotates the type wheels into the correct position during the print part of the cycle and then is added to the accumulator in the accumulate part of the cycle doesn't move freely and thus doesn't print and doesn't accumulate the correct totals. One also has sticky pins in the input register and the other doesn't seem to carry at all and has a sticky 'leading zero suppression' mechanism. First and foremost, the oil in both machines has congealed into a sticky mess. I clearly need to replace it, but I have no idea what to replace it with. I suspect that it's something similar to what's used to lube typewriters, given that they were built by typewriter companies using typewriter-inspired mechanisms? Second, I have no idea how to take them apart correctly. I've successfully gotten the covers off, but I can't even get the ribbon holder/winding assembly off since it's linked to a mechanism that's supposed to lift it to switch from black to red ink, and I can't find a way to safely disengage them... I've also tried to remove the platen cylinder, but the ribbon holder is in the way of the retaining screws. The only other things I can obviously remove at this point are return springs that hold various levers/cams in place, but I can't see how that would help me remove anything behind them, and all of the cams seem to be maually aligned on their axles, held in the correct position by the same screws that would need to be removed to take the axles out. Ease of service does not seem to have been a design goal in these machines :-/ My inability to disassemble them is doubly problematic since parts of the mechanism are buried behind so much other stuff that I can't see what they're doing, and there are parts that I can't seem to get to move using any combination of front panel inputs... there's one bit that I've found a way to reset (subtracting) but not a way to set using normal inputs... and I don't see any way of actuating the ink-color-swithcing mechanism. Does anyone have experience with anything similar that would be able to offer advice? I'd be glad to make photos and my reverse-engineering notes available... They are fascinating machines (the whole accumulator rotates around backwards to subtract!), but I am afraid of damaging them with my clumsy attempts at repair. Since I have two, I guess I can muddle along by trial and error, but I would really love to hear from someone that's worked on a similar device before. Alexey

13 years, 3 months

Old Memorex Terminals

by thomas.gardner＠sbcglobal.net

For the Memorex at 50 events next month we are looking for a few old Memorex or Memorex-Telex terminals from the middle 1980s; in particular, the Model 1377 and/or any Model in the 2000 series. We can pay for packaging and shipping. We would then like to offer them to the Computer History Museum for its permanent collection or we can return them after the events Tom +1 650.941.5324

13 years, 3 months

9762 Cray pack recovery

by aek＠bitsavers.org

someone just pointed this out to me http://www.archive.org/details/2011-cdc-disk-archaeology-fenton Chris Fenton's report on recovering data from an 80mb disk pack.

13 years, 3 months

Train shipping ( was Re: VT fixums )

by jonas＠otter.se

On Wed, 7 Sep 2011 18:55:44 +0100 (BST), ard at p850ug1.demon.co.uk (Tony Duell) wrote: >> >> > An AR88 (RCA communcations receiver) >> >> You *carried* an AR88 on a train??? They weigh, what, 45 kgs? You >> >> must >> > >> > Well, I didn't hold it for the netire journey, if that's what you >> > mean. >> > It sat on the luggage rack between Bristol and London... >> >> I hope not the overhead rack? I certainly wouldn't like to take an > > No, fortuanely not. It was one of those '125' trains, with the > luggage > racks at the ends of the carriages. it went there, on a shelf of a > suitable height. > *Phew* >> AR-88 down from an overhead luggage rack, let alone putting it up >> there, >> and certainly not having it fall out if something happened... >> Brrr... > > Knowing the cosntruction of modern trains, an AR88 would prboably go > straight through the flooe :-) > I bet. There is interesting reading at www.raib.gov.uk >> > I am insulted! I have spent my entire life avoiding exercise, and >> I >> > don't >> > intend changing that. I have never done any uncnessary exercise. >> > >> >> No offence meant! :-) > > Actually, I assuemd you'd seen at last one photo of me on the web > (thre's > one on the HPCC wrbsite in last year's confernce photos [1]), which > should indicate that I am truely a high mass hobbyist :-) > Yes, I have seen your photo, which is why I wondered about the "carrying" bit... ;-) However I might have done something as crazy as actually carry an AR88 onto a train myself, even though I have never worked out myself either previously (I have to now, my back is too painful otherwise owing to many years of working at a computer in badly conceived workplaces. A herniated disc and a doctor finally convinced me exercise was the only way to not be in constant severe pain). 45 kg is really heavy... /Jonas

13 years, 3 months

B-29 targeting computer

by brianlanning＠gmail.com

:-) http://www.ebay.com/itm/B-29-Bomber-Superfortress-Rare-Vintage-Analog-Compu…

13 years, 3 months

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test-drb September 2011