- test-drb@ccmp.vtda.org - classiccmp.org

by CPUMECH＠aol.com

I have a reader power supply for the 33, you can have it for $20 + shipping. Also have a copy holder that I'll throw in. As for running open in local mode, I'd start at the H lever especially after just being shipped, they seem to pop out. FYI, the H lever mechanically connects the keybd. to the printer.

21 years, 2 months

2
1
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Must have books for Vintage Computing

by waisun.chia＠gmail.com

On Tue, 8 Mar 2005 19:40:54 -0800, Zane H. Healy <healyzh at aracnet.com> wrote: > At 11:15 AM +0800 3/9/05, Wai-Sun Chia wrote: > >I'm building my personal library for vintage computing. I need to > >probe the collective wisdom of the list in what books must a "wannabe" > >collector (like me) should have on his/her bookshelf. > > > >Although I collect primarily DEC stuff, I don't want my knowledge to > >be just restricted to what DEC had to offer. > > If you're primarily interested in DEC stuff, a good collection of DEC > Handbooks is a must, as is a Doc Set for each of the OS's that you're Yeah. I do have a growing collection of handbooks. But I'm missing on the peripherals side for the mid-70s; i.e. between 75-79. Do you have surplus? > interested in. If you're into PDP-8's, the 3 Volume -8/e/f/m I have printed vol1 from bitsavers. The few that came up on ePay was way out of my budget. I did, however scarfed an original vol2. I also noticed that vol3 in bitsavers are not really complete though...but good enough for a working copy I suppose. The 8/m/e/f engineering docs are also something that I have been searching for 1 year plus already...all the usual places don't have it. And the only person I know who has it doesn't have a scanner.. :-) Can anyone contribute the 8/e/m schematics to bitsavers? > Maintenance Manual set is excellent as well. Remember any DEC > hardware from before the 90's is going to be *well* documented, if > you can find copies of the books! > > >p.s. Don Lancaster's books are the first on my list. :-) > > > >/wai-sun > > I've got the TV Typewriter book, and I think some other stuff by him, > and as a DEC collector it's only of mild interest. Ah. But I'm also an electronics tinkerer too.... :-) /wai-sun

21 years, 2 months

2
1
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Must have books for Vintage Computing

by news＠computercollector.com

Kevin's book is out of print, however, I've been talking with him lately about posting it on the newsletter web site. I should know more in the next week or two and will announce it here. - Evan > > "A guide to collecting computers and computer collectibles", > by Kevin Stumpf. quirky, quirky. Evan's personal homepage: www.snarc.net *** Tell your friends about the Computer Collector Newsletter! - It's free and we'll never send spam or share your email address - Publishing every Monday(-ish), ask about writing for us - Mainframes to videogames, hardware and software, we cover it all - W: http://news.computercollector.com E: news at computercollector.com - We're approaching 700 readers: win a prize!

21 years, 2 months

1
0
0 0

list queue retention

by msokolov＠ivan.Harhan.ORG

Jay West <jwest at classiccmp.org> wrote: > In case no one caught my previous post on this, a few days ago I moved = > the queue retention time back up to a reasonable value. Thank you! > I suspect Michael Sokolov is testing this out for me, his name servers = > (and thus email) have been down a few hours. Do you really think that I, after having earned the trust of my circle of friends (who all have accounts on my various servers, and use and depend on various services hosted at my data centre) as a competent, reliable and trustworthy professional system and network administrator for our Circle, would deliberately shut it down, screwing all our users?! There must be something seriously wrong with your thinking if you indeed thought so. We (yes, we, not I, I'm not the only person at Harhan, and this server is not the only one) had been down from about 02:30 UTC to 21:42 UTC (2005-03-08) due to our enemies tampering with the SDSL line that connects our data centre to the outside world. All of our servers were still running, but the entire facility was isolated from the net for about 19 hours. Apparently someone tried to wiretap the SDSL line and broke it in the process. Time domain reflectometry indicated a problem in the line somewhere between our facility and the local telco's CO from which the SDSL line is served. The techs at the SDSL NOC assumed it was an open circuit, but I know this was not the case, since during the downtime there was still *some* signal coming from the SDSL line, it was just apparently too distorted for the DSLAM and the CPE to sync up. So the problem detected by TDR, which they dispatched a local telco tech to fix, was NOT an open, but something else. I very strongly suspect foul play. The fix took so long because the ISP apparently considers business SDSL customers not worthy enough to fix in the middle of the night, so even though I reported the problem last night, it wasn't until this morning EST that they even looked at it, and then they had to have the local telco dispatch a technician, and the tech had to get to it... I'm glad they fixed it, but it's too bad I was at school at the time so I didn't catch the telco tech and thus wasn't able to ask him what he found as the source of the problem. I'm now catching up with the backlog of mail... MS

21 years, 2 months

2
1
0 0

list queue retention

by dwight.elvey＠amd.com

>From: msokolov at ivan.harhan.org > >Jay West <jwest at classiccmp.org> wrote: > >> In case no one caught my previous post on this, a few days ago I moved = >> the queue retention time back up to a reasonable value. > >Thank you! > >> I suspect Michael Sokolov is testing this out for me, his name servers = >> (and thus email) have been down a few hours. > >Do you really think that I, after having earned the trust of my circle of >friends (who all have accounts on my various servers, and use and depend on >various services hosted at my data centre) as a competent, reliable and >trustworthy professional system and network administrator for our Circle, >would deliberately shut it down, screwing all our users?! There must be >something seriously wrong with your thinking if you indeed thought so. Lighten up. Jay was just kidding. ---snip--- >DSLAM and the CPE to sync up. So the problem detected by TDR, which they >dispatched a local telco tech to fix, was NOT an open, but something else. >I very strongly suspect foul play. > ---snip--- Wow, you are paranoid. It was more likely that some other tech ( while trying to find another clean line to fix a complain about noise ) accidentally bent a wire to cross your line at one of the junction boxes. This kind of thing happens regularly ( about every 6 months or so ) to my home line because I live in an area with a lot of noisy line ( water in cable ). Why does everything that happens need to be a conspiracy. Clumsy techs are much more common than sneaky people. If someone was actually doing what you suggest, they would most likely have done a better job. If it wasn't working for you, it most likely wasn't working for them either. Dwight

21 years, 2 months

2
1
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NNTP instead of mail

by cblackburn36＠softhome.net

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi all, I know that this one has probably been covered countless times before and has been shot down but I am new to the list and have not seen this discussion before so please hold back your flame ;) I understand the trouble of unreliable mail servers, I have been afflicted with this problem myself recently, so why not look at a technology that was specifically designed to fill this job. We could set up a private news server using INN. This way we could even divide the chat up into appropriate groups i.e. ccmp.offtopic, ccmp.dec.pdp8 etc etc so that people who are just interested in a niche collection don't have to bother with all the talk of other classic computers. However people also still have the option of reading everything on the list I also understand that one of the main attractions to this list is that it is subscription based which I guess keeps a lot of the spam from reaching it. However NNTP does support authentication. We could have a web interface similar to the one that we have at the moment that allows read-only access to the groups so that other people can search them. But we also could limit posting only to people with logons. From what I have read I also see that people like the mailing list approach because it allows them to connect to the internet for a short amount of time and collect all of their email and read it later. I know of many NNTP readers that allow offline viewing via synchronization. This means that people who move about a lot can view over the web if they want but it also keeps the people who use their ASR33's happy because NNTP is a clean protocol. (By clean I mean that it has not been infected with HTML). just my $0.02 Regards - -- Chris Blackburn E-Mail: cblackburn36NOSPAM at softhome.net E-Mail: cblackburn36 at NOSPAMgmail.com PGP Public Key: http://makeashorterlink.com/?C2AF31929 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (Darwin) iD8DBQFCLdJ8xsNEmi5WofsRAlTNAKC4O/xYRlc/4DDDKEGLR66nT7yCsgCeMSG8 VX7DM3VgCHU9Op8u4NjTicE= =S/1B -----END PGP SIGNATURE-----

21 years, 2 months

10
15
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RT11 sysgen and disk partitions

by pete＠dunnington.u-net.com

On Mar 7 2005, 15:32, Vintage Computer Festival wrote: > On Mon, 7 Mar 2005, Adrian Graham wrote: > > > Isn't that something to do with using DUX.SYS instead of DU.SYS or am I > > getting confused with RT11XM and something like RT11SJ? It's been 16 or 17 > > years since I last sysgenned an RT11 box :-\ > > What's the difference between RT11XM and RT11SJ? What do the last two > letter signify? SJ is the Single Job monitor, which allows you to run one thing at a time from the console. FB is the Foreground/Background monitor, which allows you to run a background task as well. XM is the eXtended Monitor, which is like FB but in addition allows the use of more than 56kB memory (by paging). Device drivers for XM have a three-letter filename, with the third letter always being 'X'. BL is the BaseLine monitor, which is what is on the distribution media. It's like SJ, but includes all the devices you're likely to want to boot from (so you can do a SYSGEN and transfer your customised monitor to your preferred boot medium) and excludes all the frilly bits you might want but aren't needed for a SYSGEN. -- Pete Peter Turnbull Network Manager University of York

21 years, 2 months

5
8
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Christie's Auction Catalog

by jrkeys＠concentric.net

For the last couple days I have been reading the Origins of Cyberspace auction catalog that Christie's put together and it's really a very nice book (except for the prices). It shows me several things I need to be on the lookout for to put into the museum's library and on display. Check it out if you can.

21 years, 2 months

2
1
0 0

NNTP instead of mail

by cb＠mythtech.net

>Yes, but does anyone here actually save every message? I delete >everything that's not of interest to me in the present. This doesn't >help me for the future, though, so chances are slim I'd be able to >search my personal archives for references to a previously unknown device. I'm actually amazed how many people DO save every email. In fact, most of the people I work with, not only save every email, but also never move them from their inbox. They just have these huge, multi-megabyte inbox files (they would be multi-gigabyte, but I have everyone save for 1 person and myself set to use Eudora, which IMO properly handles attachments by detaching them from the email when it is received... so you don't end up with every last 20 MB attachment filling up your email database). And then you have my wife, that knows how to delete, and knows how to file messages... and still has some OCD issue with saving every email that isn't spam. (I'm the opposite... I throw out just about every email I get... if it isn't important to my life in some way, it gets junked as soon as I am done with it). -chris <http://www.mythtech.net>

21 years, 2 months

3
2
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Three books added to collection

by jrkeys＠concentric.net

Got these in the mail the other day a copy of TV Typewriter Cookbook by Don Lancaster, the Cheap Video cookbook by Don Lancaster, and a digital VT1200 - Installing and Using The VT1200 Video Terminal manual. I believe that I have other copies of the both the Don Lancaster books down in storage someplace.

21 years, 2 months

3
2
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Panasonic HHC Basic on ePay

by news＠computercollector.com

Roger, >>>>>> The guy ended the auction early, so it's mine! $55 shipped, and already paid for. That is great news! Please tell me what I need to do (i.e., how much $$ you want me to send) to get a copy of the BASIC. Evan Evan's personal homepage: www.snarc.net *** Tell your friends about the Computer Collector Newsletter! - It's free and we'll never send spam or share your email address - Publishing every Monday(-ish), ask about writing for us - Mainframes to videogames, hardware and software, we cover it all - W: http://news.computercollector.com E: news at computercollector.com - We're approaching 700 readers: win a prize!

21 years, 2 months

1
0
0 0

8' drive on PC troubleshooting

by dwight.elvey＠amd.com

>From: ard at p850ug1.demon.co.uk > >> Be sure to check the labels on the stepper motor. Some years ago I had a >> brief "aquintance" with a SSSD drive from Control Data. I binned it >> immediately, as it showed that the steppermotor needed 115VAC ! > >Never! I've enver seen am 8" drive with anything but a 24V stepper motor. > >The spindle motor is often mains powered (and often 115V, to be powered >by an autotransformer if you have 230V mains). It's a capacitor-run >induction motor, and you generally have to change the pulleys (and maybe >the belt) when going between 50Hz and 60Hz mains, to get the spindle >speed right. > >My P851 and P854 systems have CDC floppies (and I have the CDC service >manual for them). They have 24V steppers and AC-line powered spindles. > >-tony > Hi I looked at the manual for the SA800/801 and the +24V is used for the stepper and head load but it is also used for some of the electronics. Where the exact voltage is critical, there is a zener. It would nost likely work anywhere +- 2 or 3 volts. Dwight

21 years, 2 months

1
0
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DEC UNI/Q-BUS board physical size?

by pete＠dunnington.u-net.com

On Mar 8 2005, 17:18, Ethan Dicks wrote: > They use 'eyelet' rivets, not pop rivets, but for home use, as long as > the pop rivets don't touch the boards above or below, you should be > OK. > I won't say that no 3rd party ever made a plastic-handle hex card, but > it is awfully wide to not have a stiffener of some sort. ISTR some > 3rd party tape controler (TC-131?) had some kind of machined block on > either corner for extractors, but I don't recall what they did to keep > the board from flexing; perhaps a metal L bracket? I've got one hex comms board and one 3rd party memory that have no stiffeners, the comms board has plastic blocks on the corners with extractor levers. Both are a pain because they flex a lot, and both are sitting on a shelf somewhere in the workshop, not in a machine. Even quad QBus cards without some stiffening are a pain. -- Pete Peter Turnbull Network Manager University of York

21 years, 2 months

1
0
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NNTP instead of mail

by pete＠dunnington.u-net.com

On Mar 8 2005, 22:09, Jules Richardson wrote: > Lots of corporate entities will have transparent web proxies > intercepting port 80 though. I'm not sure how clever they are - do they > intercept *all* port 80 traffic then either process it or fail, or do > they pass through non-HTTP traffic on port 80 as though it was never > touched by the proxy at all? I imagine both types exist, at least. Most that I know of interpret the traffic, so NNTP on port 80 would fail on those. -- Pete Peter Turnbull Network Manager University of York

21 years, 2 months

1
0
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"HTML" Posting Tags, was Top-posting shenanigans

by kth＠srv.net

Sean 'Captain Napalm' Conner wrote: > Not when I first sent it in January of 1999, and certainly not this time > >(somewhere I have the code I wrote to generate this ... where that is, I >have no idea ... ) > > -spc (But hey! You inline replied!) > > If you're on Linux/Unix, check '/usr/games/morse'. Fair chance of something being there.

21 years, 2 months

6
6
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minor list changes

by jfoust＠threedee.com

At 08:21 PM 3/7/2005, Jim Brain wrote: >One can't help but wonder if the web forum thread is half-serious, half troll. >Especially considering the list makeup. I probably should feed the troll, >but the stereotyping thing seemed a bit overkill. Yes, not only am I trolling but I'm also playing the devil's advocate because I grow tired of the unending Windows bashing. (I'm plenty capable of that, too, have no fear.) It's not necessary for an enthusiasm for classic computers, so it's off-topic and flame-baiting. But I began to suspect that the bashing was often, at root, bashing against today's entire computer environment: anti-web, anti-GUI, anti-high-bandwidth. Why is it necessary to say that today's technology is bad just to affirm that yesterday's is/was good? At 07:17 PM 3/7/2005, Cameron Kaiser wrote: >> There's also a persistent geek belief-system where, once they >> believe a device is technologically superior, they think it >> should be popular and all those who believe otherwise are idiots. > >The irony is, one person here seems to have precisely that perspective >when it comes to web forums. I wonder who that is. Hmm. For the record, I rarely consult the web version of this list. My earliest message from it is dated November 1997, and all my archives of it are in 'mbox' format. >> To wit, I'll summarize some of the savvy arguments posted so far against >> web-based forums: Web sites are slow. Not all browsers can use them. >> [...] > >And these are bad arguments why? Are these reasons somehow unjustified? >Especially things like connect charges, software incompatibilities, ... For a group (there I go, stereotyping and lumping again to create a Them) that's technologically adept and eager to invest immense amounts of time and energy and even money in obscure archaic technologies, you'd think They'd be wise enough to recognize that today's Web users and developers face exactly the same issues we faced 30 years ago, and they're just as capable of addressing and solving them in their own way, driven by their perceived needs. Surely there are assumptions to be questioned. To wit, a web user is less concerned about hoarding precious ASCII files. They assume the connection will always be "on". They have no need to 'grep' a local copy because they assume it'll still be Out There somewhere. They don't need to 'grep' a local copy because the web site has an index or search engine or they can rely on Google. If it's valuable enough, it'll be mirrored. If they really want an offline copy, they can make it, but it'll be in HTML, and they know how to cut-and-paste to ASCII if they need it. If you want to edit in your favorite editor, just cut-and-paste. BFD. I bop between web, Windows, Mac, Linux and DOS all day long. At 07:03 PM 3/7/2005, Tony Duell wrote: >Well I cetainly can't do any of those. I have never been offered a PC >faster than a 286. I certainly can't afford broadband. I don't know your circumstances. You're in the UK. I suspect broadband is available your area for about $30 a month. If time is worth anything to you, it'll be worth it compared to dial-up. What do you pay for dial-up? Around here in East Bumblefrick USA, clients are begging me to haul away their old 600 Mhz PCs as well as any previous generations. You find them on the curb. Are you truly not using a web browser, ever? >And I don't mind >admitting I am not clever enough to repair modern PCs, I don't have a BGA >rework station You're trying too hard. See above for a source of a new PC. >I much prefer mailing lists to web fora. I prefer large-format film >cameras to digital cameras. And so on. I just picked up a gorgeous Leitz Focomat IIc enlarger for $300, I'm debating whether to keep it or eBay it and get ~$3000. At 10:39 PM 3/7/2005, der Mouse wrote: >I don't dislike reverse video because it's New and Modern; I dislike it >because I've used it and find it significantly more tiring to my eyes >(when used for any significant length of time - reverse video *is* >easier to read for very brief stuff, say a line or two, but gets very >wearing for much more than that, at least on self-luminant displays). Footnote for future-kids reading this in the archives: Note that 'der Mouse' refers to "reverse video" and means "illuminated glyphs on a dark phosphor background" although at this point in history, the vast majority of Web-using computerists considered that mode to be "reverse video" because web and GUI interfaces typically drew non-illuminated glyphs on lighter backgrounds. - John

21 years, 2 months

2
1
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PDP 11/45 problems.

by jim＠g1jbg.co.uk

Hi, I think I have arrived at pretty much the same point as Jay on my 11/45. Ive stripped it down to the minimum - processor, memory management, memory (UFUM) and timing generator. Toggling in from the front panel, I can see the data lines change, but I'm not getting address data on the Unibus. My next test, is to try and look at the address data between the processor and the memory management module. Does anyone have any other tips? Thansk Jim. Please see our website the " Vintage Communication Pages" at WWW.G1JBG.CO.UK

21 years, 2 months

3
4
0 0

minor list changes

by dvcorbin＠optonline.net

> You are seriouisly suggesting that I carry a pile of service > manuals, classic computers, and test gear (all of which I've > been known to use in order to answer questions here) to > the local internet cafe? > Of course not.... you set them all up there as an exhibit!!!!

21 years, 2 months

2
1
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For Trade: SGI software,manuals,keyboards,mice,machines

by ishtar130＠hotmail.com

Hi I noticed on the internet that you or whoever have owners manuals if you still have them I would be intrested in the O2 Workstation Owner's GuideIRIS Software Installation Guide IRIS Workspace User's Guideif you still have these what is the condition and priceThank YouGreg Pishko

21 years, 2 months

1
0
0 0

NNTP instead of mail

by pete＠dunnington.u-net.com

On Mar 8 2005, 17:59, Chris Blackburn wrote: > All the email/news clients I have used support it, these include > > 1) Microsoft Lookout (express) > 2) Mozilla Mail > 3) Mozilla Thunderbird Most traditional ones, like tin, do so as well. > > 3) Some people don't have NNTP access. > > I truly hadn't thought of this one. If it is a problem then we can tell > INN to run on a nonstandard (and usually available) port and tell > people to set up their news clients appropriately. Except that firewalls with a "default drop" policy, ie block everything except that which is "known" to be "safe", are becoming more common -- so using a non-standard port would make matters worse, I suspect. OTOH, you could use port 80 if the NNTP server wasn't also a web server. -- Pete Peter Turnbull Network Manager University of York

21 years, 2 months

2
1
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2.5V Lithium "AA" sized batteries: Where to find?

by pete＠dunnington.u-net.com

On Mar 5 2005, 17:53, Eric F. wrote: > The battery is the size of a regular "AA", but is 2.5V Lithium. The > company who used to manufacture them (SAFT) no longer does so. The SAFT > battery model # is "LCP 6". > > Picture of battery (and a regular "AA" for comparison): > > http://home.san.rr.com/instep/saft-lcp6.jpg (~42KB) Lithium/thionyl chloride cells are 3.6V, and lithium/iron disuplhide are 1.5V per cell, so it's probably lithium/manganese dioxide which is usually described as 3V. Varta make an AA size Li/Mn02 with PCB tags, which you might be able to cut off. Sorry, I don't know the part number, but it's still shown as current in my CPC[1] catalogue. Sonnenschein, SAFT, Maxell, and others also make 3.6V lithium AA cells, if that's any good. They're (or were) used in a few computers, including Compaq Portables and some older Tandon and Toshiba models. Some companies make 1/2-AA size cells. They're usually 3.6V lithium/thionyl chloride and commonly used in Apple Macs, but I think I've seen 1/2-AA 1.2V NiCd or NiMh ones as well (2/3-AA are quite common). [1] CPC, aka Combined Precision Components, is a supplier of electronics and other items in the UK. However, it's part of the Farnell Group along with Farnell Electronic Components and Newark so you might be able to find the same things on Farnell's US web site. -- Pete Peter Turnbull Network Manager University of York

21 years, 2 months

2
1
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three and a quarter inch floppy?

by pete＠dunnington.u-net.com

On Mar 8 2005, 19:18, Jim Beacon wrote: > 31/4 drives were used on the old Amstrad word processing machines (forget > the number - do any of the other UK members know? I think you're thinking of the PCW range, and they used 3", not 3.25". -- Pete Peter Turnbull Network Manager University of York

21 years, 2 months

1
0
0 0

NNTP instead of mail

by pete＠dunnington.u-net.com

On Mar 8 2005, 12:54, Randy McLaughlin wrote: > An email is forever if your server lets you keep a large enough back-log or > if you download it to your machine and it never ever fails (who ever hear of > a computer having trouble anyway). > > NNTP is forever through people like google groups. Only for groups on public servers, which peer with other Usenet servers. If we're talking about private servers, google groups doesn't enter the equation. > The true problems with NNTP are: not everyone has access to Usenet will and > those that do would have to talk their Usenet provider into including it. Only if the group(s) is/are public, and propagated through Usenet. They don't need to be; lots of groups are private and restricted to a few servers (eg the local York Uni groups, the tin newsreader groups). > I love NNTP and have several groups I follow on it. I see no practical way > to switch to Usenet. The list works, it may not be perfect [...] Agreed :-) -- Pete Peter Turnbull Network Manager University of York

21 years, 2 months

1
0
0 0

RLL vs. MFM

by eric＠brouhaha.com

Ming_Mae wrote: > No you can't use a RLL with an MFM controller. Similar but not the same. If you're talking about using drives with the ST506/ST412 interface, you most certainly can use an "RLL drive" (e.g., ST277R) on an MFM controller. Of course, you'll only get 2/3 the capacity that you would get with an RLL controller. Using an "MFM drive" with an RLL controller often works, but it depends a lot on the drive. In my experience high-quality drives like the Maxtor XT1000 and XT2000 series always worked fine. Eric

21 years, 2 months

1
0
0 0

Panasonic HHC Basic on ePay

by news＠computercollector.com

I'll happily split the cost of the BASIC ROM is you can make me a copy. Someone else is selling an EO 440 and the bid is up to $108. Crazy! If it were mint condition with all manuals and accessories, etc., then MAYBE it would be worth $100. But this one is not. >>>>>>>>> --- Roger Merchberger <zmerch at 30below.com> wrote: > It's nutjob-expensive, if you ask me - but the guy's 2 - one he's epaying > alone ($50 USD opening bid, BIN for $75) and he's got another complete > machine with the BASIC ROM in it for $115 BIN, IIRC. No bids on either > one... should I snag the ROM to make backups of it? :-O Evan's personal homepage: www.snarc.net *** Tell your friends about the Computer Collector Newsletter! - It's free and we'll never send spam or share your email address - Publishing every Monday(-ish), ask about writing for us - Mainframes to videogames, hardware and software, we cover it all - W: http://news.computercollector.com E: news at computercollector.com - We're approaching 700 readers: win a prize!

21 years, 2 months

1
0
0 0

PS/2 -> Indigo adapters

by leeedavison＠yahoo.co.uk

> I _think_ I see a little initialization data pass down the > line, to the mouse, when I first power up the device, but > my o'scope isn't a memory type, so it might just be power > up noise. If you repeatedly pulse the MCLR pin you can repeat the reset sequence often enough to view it on the scope. If it is power up noise it may be confusing the mouse enough to stop it working. Lee . Send instant messages to your online friends http://uk.messenger.yahoo.com

21 years, 2 months

1
0
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PS/2 -> Indigo adapters

by dholland＠woh.rr.com

Hi, Has anyone successfully built one of the PS/2 -> Indigo adapters off of the following page? http://rshockley.dyndns.org/indigo.htm I'm having a devil of a time getting the mouse portion of things to work. When I hook my scope up to the clock and/or data PS/2 lines, I see no data being received from the mouse. I'm wondering if the mouse init code is not liking any of the PS/2 mice I've got around. (I've tried 4 different ones.) If you've got one working, what sort of mouse do you have? I freely admit, I'm not a PIC expert, as this is my first project w/ them. :-> So any clue's anyone cares to beat me about the head and shoulders w/ will be appreciated. I do know the PIC's are "running", as the dozen test program I wrote toggles the pins on PortA, and the keyboard side of things appears to be working. I'm also pretty certain that my config word is right, particularly external oscillator, and watchdog timer is off. Anyone got one working? Or do I get to experience the joy's of reverse engineering the code? Thanks, David

21 years, 2 months

6
7
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PDP 11/45 processor schematics

by jim＠g1jbg.co.uk

Hi, a few days ago, I found a set of schematics for an 11/45 processor (KB11), I think on the site of someone on this list. Like an idiot, I didn't bookmark them, and now I can't find them :-( Can anyone help - they were in TIF format. Thanks Jim. Please see our website the " Vintage Communication Pages" at WWW.G1JBG.CO.UK

21 years, 2 months

3
2
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VAX 4000/705A

by m.wickens＠rhodium-consulting.com

Am I right in assuming that a VAX 4000/705A can only contain one CPU? Thanks for the help, Mark -- Mark Wickens Rhodium Consulting Ltd Filetravel (8154) Ltd

21 years, 2 months

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Anyone going to VCFe6 from California?

by dwight.elvey＠amd.com

Hi Is anyone going to VCFe6, this spring, from northern California? I'm looking for someone that might be able to bring a box of paper tapes back for me from a fellow in Germany. Dwight

21 years, 2 months

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ASR-33 Questions

by dwight.elvey＠amd.com

>From: "O. Sharp" <ohh at drizzle.com> ---snip--- >> >Thanks for the excellent suggestions regarding likely mechanical causes >for the chatter on Local. I'll be walking through the machine with them >tomorrow, and hopefully they'll solve the current problem. Then I can look >to see if there are more exotic problems. :) > Hi You can try holding the armature of the selector coil with a small screw driver. This will tell you if it is a mechanical or electrical problem. If held, and you start the power, all should lock-up. If it doesn't, it is a mechanical issue. If it does, you have a break in the electrical circuit someplace. Be careful not to damage things near the coil. An orange stick would be safer than a regular screw driver but I've always just used a small screw driver. You can see the selector clutch on the left side of the machine. This is the clutch that starts everything. If you are uncomfortable with powering on with your screw driver in there, you can just spin things manually. Just turn the fan on the motor. As each clutch releases, squeeze it to completely release it or it will drag. When the motor is running there is enough inertia to completely release it but when running by hand, it needs to be done by the additional squeeze. Dwight

21 years, 2 months

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please advise me of any list problems

by jwest＠classiccmp.org

I've weeded out a bunch of accounts that were slowing the list down (virtually all inactive members who's "no mail flag" being cleared wreaked havoc with non-delivery). Seems to be noticeably faster and such. So... once again I'll ask... is anyone having any problems posting to or receiving from the list? If so, please contact me immediately off-list. Soon as no one responds to one of these RFP's, I'll move on to the FAQ :) By the way... no one has mentioned if they tried the search feature on the archives. Work ok? Jay

21 years, 2 months

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OT:techology

by dvcorbin＠optonline.net

> For the clock of course ... the .0001 hz hourglass has to flip > correctly. > >- John Might be better if we refer to the clock speed in kCpy [Kilo-Cycles per Hr] = (approx) 3.15576 kCpy!

21 years, 2 months

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picking locks (OT)

by dwight.elvey＠amd.com

>From: "vrs" <vrs at msn.com> -- > >Cars where the windows can be rolled down are getting harder to find. > >My vans (both of them) have those stupid power windows that won't operate >unless the car is running. Oh, and the back windows don't open at all >(well, OK, they open a couple of inches for ventilation). > Hi How many times do you think a person drives there car into the water and then remembers to turn the ignition off? Dwight

21 years, 2 months

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TI Microprocessor Learning Set

by RCini＠congressfinancial.com

All: I picked-up a copy of the 9/76 BYTE magazine on eBay the other day and as I was thumbing through it last night, I noticed an ad for the Texas Instruments Microprocessor Learning Kit. The LK is composed of four modules in clear plastic cases. The first one is the Microprogrammer Learning Module and contains an array of data and address switches. The second one is the Controller. The third is the memory and the fourth is I/O. They connect through what appears to be 40-conductor ribbon cable. From the ad, the coursework appears to center around microprogramming and developing your own CPU instruction set as a learning tool. Has anyone used one of these or has one in their collection? Rich

21 years, 2 months

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picking locks

by dwight.elvey＠amd.com

>From: "Ron Hudson" <ron.hudson at sbcglobal.net> >> ---snip--- >> >An If you have electric windows like my Saturn ION, you will need to >break them. >The motors may or may not work after being submerged. > > Hi It has been shown that the windows will work for several minutes, even in salt water. You do have to remember to not turn the ignition off while trying to get out of the car. Dwight

21 years, 2 months

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OT:techology

by James＠jdfogg.com

> > > Not much different from a relay computer really, I suppose. > > > Just slower. > > > And more sandy. > > > > And relay computers don't like salt water, but administrators might. > > Hmmm, seaside computing. I think we hit on something. > > I'm waiting for someone to invent a display that can be used > in direct sunlight, so I don't have to work in what is > affectionately called the 'coffin' aka 'caravan by the sea > with windows blacked out'. > > When will that be...? > > Talk to me goose. Done! See, that was easy. Braille terminals. The have a bed of pins and set the state of each pin (up or down) as needed. Or use a text-speech converter. I helped a blind guy fix his computer once, he used a soundblaster and a text-speech program. It "spoke" so fast I had no idea what it said but he could follow it just fine.

21 years, 2 months

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minor list changes

by msokolov＠ivan.Harhan.ORG

John Foust <jfoust at threedee.com> wrote: > [...] yet these same folk claim to be unable and > unwilling to locate and revive a cast-off PC with sufficient power > to run a contemporary web browser [...] To me it is a matter of religion. I see the purpose of my life in not using shitty "modern" technology, and I am ready to die for my cause and to shed the last drop of my blood on the battlefield for it. But all you miscreants who are busy making the world unfit for me to live in, I will NOT give up without a fight! I have guns, and I *WILL* shoot at least a bunch of you before I go down. Heck, my philosophy is that if I kill at least ONE miscreant before I die, I will not have lived my life in vain. > phrase "Techno-Amish". I've used it to describe myself a long time ago. MS

21 years, 2 months

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PDP 11/35 troubleshooting

by wacarder＠usit.net

Ok, since everyone seems to be in ancient PDP-11 troubleshooting mode, I decided to get out my 11/35 and see what I can do with it. I've double checked all the processor options and the CPU boards all seem to have the jumpers set correctly. The only questionable jumpers are the two jumpers that indicate parity memory is present, but since the system seems to have some problems, I've disconnected the M981 from the MF11-LP core backplane and replaced it temporarily with an M9302. There is also an M7800 console card in the SPC slot. I've checked all the voltages and they look ok. When I power the system on, it comes up with the following lights lit: Address: 000026 (octal) Data : 000002 (octal) The PROC, BUS, and CONSOLE lights are also lit. If I press HALT and then press START, all the DATA lights come on. The RUN light also comes on, along with the PROC, BUS, and CONSOLE lights. The load address, deposit, and examine switches don't seem to do anything, although I know they are functional. Ideas? Does anyone know what the ADDR 000026 and DATA 000002 lights indicate when the system is powered on? Thanks, Ashley

21 years, 2 months

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RLL vs. MFM

by Ming_Mae＠hotmail.com

No you can't use a RLL with an MFM controller. Similar but not the same. Run length limited verses modulated frequency. I have an RLL controller laying around somewhere in an antistatic bag if he is interested.

21 years, 2 months

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list queue retention

by jwest＠classiccmp.org

In case no one caught my previous post on this, a few days ago I moved the queue retention time back up to a reasonable value. I suspect Michael Sokolov is testing this out for me, his name servers (and thus email) have been down a few hours. And can we move on to classic computers now? I think we've beat all horses to death a few times ;) Jay

21 years, 2 months

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PDP8 extender

by hachti＠hachti.de

Hi, does anybody have an double extender card for my PDP8/L? I have just a narrow one :-( Thanks, Philipp

21 years, 2 months

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need/want old tape drive in old movie identified

by fernande＠internet1.net

I just got done watching the 1969 "The Italian Job". In it, the Turin, Italy traffic system is controlled by a mainframe. All that was really shown up close was a few tape drives. I paused, and advanced frame by frame, but still had a hard time identifying the make. It looked like the reals had a "H" printed on them. Would they have been HP drives? I couldn't make out the plates on the very top of the racks. FWIW, I liked the modern Italian Job better, although some of the cars and scenery were pretty cool, in the old one. Chad Fernandez Michigan, USA

21 years, 2 months

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ASR-33 Questions

by ohh＠drizzle.com

Well: I finally took a leap of faith, and bought an ASR-33 from someone who wasn't anywhere near Seattle. After a previous (extremely bad) Teletype shipping experience (read: TTY dumped in box and packing peanuts poured on top; unit largely destroyed in transit; seller refused to refund and claimed damage was somehow _my_ fault; story actually got worse from there if you can believe that, but maybe that's enough for now), it took a leap of faith to try buying another one I couldn't personally pick up. But the seller took a _lot_ of extra care packing it, including bolting the typing unit to the chassis, and wonder of wonders it actually arrived completely intact. :) But in spite of that it needs some help, so I thought I'd ask a couple of questions here. -The one big problem it has is its lack of a reader power supply. The last owner got it from a government surplus program, but they neglected to supply anything but the unit itself... and so no reader supply. Does somebody have the schematic of one of these so I can build a new one? (Better yet: does somebody have a spare one I can talk them out of for a reasonable price?) -I'm looking at some DEC diagrams saying how the ASR-33 gets modified for use with a PDP-8 series interface (thanks once more to Mr. Kossow!). It says two "6RS205P484 Thyractors DEC #1100106" should be added to the unit. Okay, I admit it: I don't even know what the hell a "thyractor" _is_, much less what ratings I should be looking for re: these two. Can someone shed a little light on this? -Right now the unit is doing a lot of chattering on both Line and Local when powered on. Initially I thought something might be mechanically wrong due to being shaken around in shipping, say one of the clutches on the main shaft locking into an active position, but so far I haven't found a culprit. I'm also wondering if I'm even looking in the right direction for the problem, sooo here's the question: could the lack of a power supply for the reader be causing this behavior? (The reader itself is obviously inert right now, but I'm wondering if there's a missed connection or somesuch which could explain it.) ...At some point I'll probably ask someone with a copyholder to take some tracings and measurements for me so I can fabricate a new one, but maybe I'll just see if I can get it working first. :) -O.-

21 years, 2 months

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AT&T PC 6300, AT&T CRT 318H (fwd)

by vcf＠siconic.com

Anyone interested in an AT&T PC6300? No idea of the whereabouts. Contact original sender. See below: Reply-to: lkrupp at pssw.com -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ] ---------- Forwarded message ---------- Date: Fri, 04 Mar 2005 14:41:43 -0700 From: Louis Krupp <lkrupp at pssw.com> To: Vintage Computer Festival <vcf at siconic.com> Subject: AT&T PC 6300, AT&T CRT 318H Any use for an AT&T PC 6300 and an AT&T CRT 318H? Louis

21 years, 2 months

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minor list changes

by msokolov＠ivan.Harhan.ORG

ard at p850ug1.demon.co.uk (Tony Duell) wrote: > It would certainly get rid of me, and a fair few others, I suspect. Me too of course, but see below. > 2) None of my machines can run a modern web browser. Same here of course. > Yes, I'd miss this list, but I think I could live without it... Don't worry, you'll be the first person I'll invite to mine! <EXTREME RANT MODE> Screw the rest of them. Do we really need them, those modern computer wallopers? A true Classic Computist is one whose Classic Computers are his newest computers. I judge people by their newest computers. If you have an XP box and use it, to me you are a worthless XP luser, and I don't care whether or not you also happen to have a PDP-11 or whatnot in your basement. It's your newest and most actively used computer that counts to me. If you have a PDP-11/45 and want me to respect you as a PDP-11/45 user, then make that PDP-11/45 your main and primary computer and throw that XP box out the window. </EXTREME RANT MODE> -- Michael Sokolov Engineer / Researcher / Truth seeker / Freedom fighter http://ivan.Harhan.ORG/~msokolov/

21 years, 2 months

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VMS startup problem?

by willisjo＠zianet.com

on 3/7/05 5:29 PM, Adrian Graham at witchy at binarydinosaurs.co.uk wrote: > Hi John, > >> I now get a message that says >> >> waiting to form or join a VAXcluster system > > Odd, it should've done that from the word go, but never mind. It should also > form a cluster on its own but I guess if there's no license for it it might > not. At the SYSBOOT> prompt just SET VAXCLUSTER 0 and that'll stop the > clustering in its tracks. For completeness also add SET SHADOW 0 just in > case there's any volume shadowing active.... >

21 years, 2 months

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Unsubscribe Problems

by davess111＠juno.com

Mr. West , Due to the fact that your "unsubscribe" reminder feature is inoperative , could you take the time to check into that?? It would be of great help to some of us that are growing a bit tired of having our mailboxes filled up with unwanted emails. davess111 at juno.com ___________________________________________________________________ Speed up your surfing with Juno SpeedBand. Now includes pop-up blocker! Only $14.95/month -visit http://www.juno.com/surf to sign up today!

21 years, 2 months

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minor list changes

by news＠computercollector.com

>>>>> > phrase "Techno-Amish". > > I've used it to describe myself a long time ago. >>>> Just a quick note -- the real Amish are pacifists, and don't believe in warfare. I am pretty sure they'd be mightily offended by you using their name. << ----- Heck, I'm offended by it, and I'm Jewish! Evan's personal homepage: www.snarc.net *** Tell your friends about the Computer Collector Newsletter! - It's free and we'll never send spam or share your email address - Publishing every Monday(-ish), ask about writing for us - Mainframes to videogames, hardware and software, we cover it all - W: http://news.computercollector.com E: news at computercollector.com - We're approaching 700 readers: win a prize!

21 years, 2 months

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VMS startup problem?

by willisjo＠zianet.com

Hello, Having a bit of a problem starting VMS 5.1. It seems that it begins execution of the startup procedure, but then it hangs. I'm wondering if there's a way to bypass the startup procedures so I can find out what's wrong. Here's the messages I get: KA630-A.V1.3 Performing normal system tests. 7..6..5..4..3.. Tests completed. Loading system software. 2..1..0.. VAX/VMS Version V5.1 Major version id = 1 Minor version id = 0 .. $! Copyright (c) 1988 Digital Equipment Corporation. All rights reserved. The VAX/VMS system is now executing the system startup procedure. %%%%%%%%%%% OPCOM 7-MAR-2005 08:07:07.89 %%%%%%%%%%% Logfile has been initialized by operator _OPA0: Logfile is SYS$SYSROOT:[SYSMGR]OPERATOR.LOG;769 %LICENSE-I-LOADED, DEC FORTRAN was successfully loaded with 50 units And then nothing. Almost looks like a system ready to be logged into, yet pressing Enter does nothing. I know the terminal emulator works because I am able to halt the system and type commands successfully at the >>> prompt. Thanks in advance! John

21 years, 2 months

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