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

Telequipment S51B Oscilloscope Free to a Good Home

by robert.jarratt＠ntlworld.com

I was given this oscilloscope recently but have since acquired a better one. This is a single channel oscilloscope and contains valves. The trace drifts up and down a bit and it is probably not calibrated either. I have a manual for it too. You just pay the postage. The item is in Manchester, UK. Regards Rob

15 years

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What Is It With Mains Filters?

by robert.jarratt＠ntlworld.com

All the PSUs that have had components pop on me have all been capacitors in the mains filter (except the H7140 in my PDP11 but that was only after I had been messing with it to try to fix it, so that doesn't count). Not being an expert in electronics I am not sure of the reason for this. Can someone explain? Is it the type of capacitor? Is that type of capacitor only used in mains filters? If not, why have I (so far) not seen other PSU capacitors blow up? Regards Rob

15 years

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Jack Eisenmann's Duo Adept

by lproven＠gmail.com

The 8-bit computer that?s been built by hand http://www.pcpro.co.uk/blogs/2011/06/17/the-8-bit-computer-thats-been-built… >From the video: [[ The DUO Adept is an 8-bit homebrew TTL CPU + GPU I have designed and built. As a challenge I used only basic kinds of logic chips; no microcontroller or video card. It has a black and white TV monitor and keyboard, and is generally awesome! Oh, and I forgot to mention: I made this when I was a highschooler with no formal education in electronics. :) For more information about the machine, please go to this page: http://web.mac.com/teisenmann/iWeb/adeptpage/menu.html ]] -- Liam Proven ? Info & profile: http://www.google.com/profiles/lproven Email: lproven at cix.co.uk ? GMail/GoogleTalk/Orkut: lproven at gmail.com Tel: +44 20-8685-0498 ? Cell: +44 7939-087884 ? Fax: + 44 870-9151419 AIM/Yahoo/Skype: liamproven ? MSN: lproven at hotmail.com ? ICQ: 73187508

15 years

2
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Useless thread, RE:Religion, Re: Nazi System 360/370 book...

by ragooman＠gmail.com

On Jun 16, 2011 1:11 PM, "Chuck Guzis" <cclist at sydex.com> wrote: > > On 16 Jun 2011 at 11:56, Ethan Dicks wrote: > > > Bronze vs Iron. > > Analog vs. digital... > Floating Point vs. Fixed Point

15 years

8
9
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Pdp 11/40

by billdeg＠degnanco.com

Running pdp 11/40 power ok. Power on...freezes with proc and bus lights on and no front panel response. Working to resolve any off the cuff ideas? Will post details if anyone interested to help. Bill -- Sent from my Android phone with K-9 Mail. Please excuse my brevity.

15 years

3
3
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Esprit keyboard

by teoz＠neo.rr.com

Got an Esprit keyboard today and was wondering if it is a normal PS/2 type keyboard? It looks kind of like the Esprit 125c terminal keyboard but with a PS/2 plug instead of rj11.

15 years

1
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Calcomp Techjet on CL

by cclist＠sydex.com

http://eugene.craigslist.org/ele/2446255291.html Eugene, OR I'd pick it up, but I don't know what the heck I'd do with it. --Chuck

15 years

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Useless thread, RE:Religion, Re: Nazi System 360/370 book...

by christian_liendo＠yahoo.com

Kirk vs. Picard, Opps... Wrong group..

15 years

1
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Q-bus replacement systems pdp-11

by ken＠seefried.com

> http://www.transduction.com/pdf/NuPDPq_brochure_Transduction.pdf Interesting. If you look at the daughtercard on the PDQ-1000 (next to the probably-a-pentium-ish-CPU-fan), it looks pretty much like a PC/104 connector (upside down, of course) and the back panel port config is oh-so familiar. I'm betting a bog-standard embedded X86 system (new enough to have PCI) with a QBus interface running an emulator. As to the PDQ-2000 and -3200, I bet those are just Intel motherboards in a rackmount case. Chris Elmquist pointed out the CCI1016 looks (to me as well) to be a Comtrol RocketPort. The CEI-1000 is pretty clearly one of the myriad of Intel desktop Ethernet adapters. Their DQP-1100, -1300 and -1500 are DRV11 work-alikes made by Logical.

15 years

3
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Fw: Fwd: Commodore CBM Pet 8032

by nospam212-cctalk＠yahoo.com

I received this and as I am not in the UK, I'm passing it along. Contact them directly if you can help them out. David Williams http://www.trailingedge.com -------- Original Message -------- Subject: Commodore CBM Pet 8032 Date: Thu, 16 Jun 2011 16:47:17 +0100 From: 0 <brutus504bc at googlemail.com> Hello there, I live in England and own an old Commodore CBM Pet 8032 computer. Ten years ago it was working fine and today I was clearing house and decided to turn it on before trashing it. It did come to life but has lots of unrecognized characters at bottom half of screen, and when I type anything on keyboard it mostly replies with "?SyntaxC13" or something of this nature. Is there anywhere in the UK you know of where people will be interested in this machine ? As it doesnt appear to be working correctly, I have no real wish to "Ebay" the item. It would be a shame to throw this out. Thanks, Paul.

15 years

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Useless thread, RE:Religion, Re: Nazi System 360/370, book...

by ken＠seefried.com

Edison v. Tesla

15 years

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Useless thread, RE:Religion, Re: Nazi System 360/370 book...

by david＠classiccomputing.com

> Message: 19 > Date: Thu, 16 Jun 2011 15:58:25 -0400 > From: William Donzelli <wdonzelli at gmail.com> > Subject: Re: Useless thread, RE:Religion, Re: Nazi System 360/370 > book... > > Who is the knob that started this holy war thread anyway? We should be > arguing about which brand of cement we will pour down his throat. > __ > Will Oh now, I don't think it would be nice to call anyone out ... Evan Koblentz! ... Now on to some nice political discussion. Evan, you want to start that one off?! ; ) Best, David Greelish, Computer Historian President, Atlanta Historical Computing Society Classic Computing The Home of Computer History Nostalgia http://www.classiccomputing.com Classic Computing Blog Classic Computing Show video podcast "Stan Veit's History of the Personal Computer" audiobook podcast Retro Computing Roundtable podcast

15 years

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Q-bus replacement systems pdp-11

by useddec＠gmail.com

I know someone who developed a pc emulator for the PDP-11 back in the late 80's or early 90's and had it approved by the FAA to replace 11/55's used in older flight simulators. Paul On Thu, Jun 16, 2011 at 5:13 PM, Zane H. Healy <healyzh at aracnet.com> wrote: > At 4:55 PM -0400 6/16/11, Diane Bruce wrote: >> >> You lot seen this? >> >> http://www.transduction.com/pdf/NuPDPq_brochure_Transduction.pdf > > That's the most interesting bit of computer gear I've seen in a long time! > ?Up there with Chameleon 64. > > Zane > > > > > -- > | Zane H. Healy ? ? ? ? ? ? ? ? ? ?| UNIX Systems Administrator | > | healyzh at aracnet.com ? ? ? ? ? ? ?| OpenVMS Enthusiast ? ? ? ? | > | ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?| Photographer ? ? ? ? ? ? ? | > +----------------------------------+----------------------------+ > | ? ? ? ? ? ? ? ? ? ? My flickr Photostream ? ? ? ? ? ? ? ? ? ? | > | ? ? ? ? ?http://www.flickr.com/photos/33848088 at N03/ ? ? ? ? ? | >

15 years

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The ULTIMATE VS. Re: Useless thread, RE:Religion, Re: Nazi System 360/370 book...

by ragooman＠gmail.com

On Thu, Jun 16, 2011 at 2:41 PM, Zane H. Healy <healyzh at aracnet.com> wrote: > I've really basically given up on this... > > > At 10:54 AM -0700 6/16/11, Christian Liendo wrote: > >> Top Posting vs. Bottom Posting >> > > CISC vs RISC ;)

15 years

4
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Nazi System 360/370 book...

by trenchdweller＠att.net

Reino was an instructor at Cal Poly SLO when I was studying computer science there in the 1970's. He was a nice old guy. I learned 360 BAL from his class. I think he passed away in 2006. If I'm not mistaken I contributed to the writing of that book. I doubt he was a nazi. Paul > So my wife wanted to show me a book tonight. Turned out it was one > of mine, she'd noticed something interesting. > > System 360/370 > Job Control Language > and the > Access Methods > by Reino Hannula > > What's up with the Swastika on the spine of the book? It's made up > of little triangles, but it's definitely a swastika. Very strange.

15 years

2
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Life, the Universe and all that other stuff

by wbblair3＠yahoo.com

Bringing this back more on topic (but still not exactly about "classic" computing): 2011 Isaac Asimov Memorial Debate on The Theory of Everything http://www.youtube.com/watch?v=lYeN66CSQhg That is a fantastically interesting symposium to watch in its entirety, but these parts relate to reality as a computer simulation: Dr. Jim Gates at: 0:09:20 Who he is 1:00:21 What he's found 1:34:15 More specifics about what he's found (binary error correction codes in string theory equations) In the Science Channel show Through the Wormhole, another scientist found that certain characteristics of quantum mechanics can be explained by reality being a computer simulation. He noted that within the next fifty years, the computational power of the human brain will be available in a laptop that consumes the same amount of power or less and that this rate of growth in computational power far exceeds evolutionary increases in the human brain size/computational power being limited currently by the size of the birth canal. He extrapolates that process over billions of years to posit a higher intelligence programming a mega-computer to create our reality. Wild stuff to think about. In another Science Channel show on the nature of reality, I believe it was stated that a room-sized quantum computer may have the power of a conventional computer the size of the universe. As a result of this and the limitations of growth in biological computational power through evolutionary means (although biological intelligence created in vitro may be a means around this once we actually understand the nature biological intelligence), the most likely form of an advanced technological civilization would be a computer with AI. So, any ET civilization older than ours that we'd contact would most likely be AI. Dr. Gates stated in his introduction that Asimov's stories had inspired him to become a scientist. Here's one of them that follows the above conjectures, a story which blew my mind when I read it as a youngster: The Last Question by Isaac Asimov http://www.multivax.com/last_question.html

15 years

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Looking for Nissho N1100 PDP-11 CPU upgrade documentation

by staylor＠mrynet.com

I've recently acquired a Nissho N1100 CPU upgrade for a UNIBUS PDP-11. Does anyone have documentation on this boardset? (If responding directly to me via email, please use bub7734 at yahoo.com -- I can't manage to get a subscription approved for that address, so can't post from there) TIA! -scott

15 years

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Life, the Universe and all that other stuff (was RE: Nazi System 360/370 book...)

by IanK＠vulcan.com

> -----Original Message----- > From: cctalk-bounces at classiccmp.org [mailto:cctalk- > bounces at classiccmp.org] On Behalf Of Zane H. Healy > Sent: Wednesday, June 15, 2011 6:34 PM > To: General Discussion: On-Topic and Off-Topic Posts > Subject: Re: Nazi System 360/370 book... > > At 2:34 PM -0400 6/15/11, Evan Koblentz wrote: > >>Most of the time I spend time trying to understand why an otherwise > >>intelligent person could come to such unsupported conclusions about > >>some things. It's as if their logical thinking breaks down, and is no > >>longer around when faith steps into the room. > > > >That's exactly how I feel about "God". I cannot grasp why otherwise > >intelligent, rational people -- especially techies -- suspend their > >common sense to believe in an invisible man in the sky. > > > >I welcome a debate with anyone here who claims that believing in > >god(s) is somehow "different". > > I can't grasp how otherwise intelligent, rational people, especially techies, > don't believe in God. The alternative is illogical, as we understand better > than most, just how complex things really are. > That's an importantly profound observation about the question at hand. Considering the idea of 'least hypothesis', the idea of a consciousness behind the nature of the Universe - i.e. God - seems to be far more straightforward than the mass of conflicting hypotheses to explain the origin of the Universe and the (known) life forms within it. Taken one by one, and within constraints, many of those hypotheses do make sense - for instance, the idea of natural selection. That makes sense as the dynamics of a working system. But the origin of the system it assumes as its basis is not well explained by that same hypothesis, nor are apparently 'disruptive' events within it, e.g. the rise of human-order intelligence (or even the existence of higher-order life). Unfortunately, 'belief in God' is too often tied to 'belief' in a lot of other stuff, much of which seems to be contrived to ensure that those who work in the business of Organized Religion don't miss any meals. That tends to give it a bad name, especially among thinking people. I will argue there's a difference between 'unsupported conclusions' and 'faith.' The latter is more similar to selection of a set of axioms. Axioms are exempt from proof (although showing one is invalid is good for nuking anything premised thereupon), but should be atomic in nature to be useful in logical discourse. Once you show a proof for an article of faith, it enters into the realm of 'known facts.' Unsupported conclusions seem disjoint from the realm of 'known facts' and even from that of 'faith,' assumed to be self-evident without a supporting framework of axioms, hypothesis and logical process. (See, social conservatives.) Given the nature of this discussion, I'm going to the effort to make the following disclaimer: the above is my personal opinion and does not represent the official or casual opinion of my employer. -- Ian

15 years

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Vintage Portable Computing Suggestions?

by mark＠wickensonline.co.uk

Guys, I used a Cambridge Z88 for Retrochallenge last year (see http://www.retrochallenge.org for last competition) whilst on holiday. The summer challenge runs in the month of July - entries will be welcome anytime by email to me mark at wickensonline dot co dot uk. This year I'd like to use a different, portable computing device to document this year's summer challenge, and possibly include a little programming. My criteria are: * no larger than a Cambridge Z88. * daylight readable screen. * operates on batteries. * preferably with some kind of programming language/environment. I'd welcome suggestions from members of the list as to what I could take this year that would be fun to explore but also practical enough to use day to day to write text for the website. I will take a laptop for uploading text via wifi, so some sort of PC connectivity is a must (although this could be as simple as an RS232 cable). Many thanks, Mark

15 years

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convert RX01 to RX02?

by chrise＠pobox.com

A couple of the items we "saved" this weekend from the garage in MN included both an RX01 and an RX02 floppy system. Unfortunately, the mice got to the RX02 before we did and really had quite the palacial estate inside the cardboard box with foam packing that held the unit. Needless to say, everything that comes out of a mouse pretty much covered this drive system. Mouse effluent #1 turned the whole thing to #2. It looks to be a total loss. However, the RX01, in another box, was tightly wrapped in plastic and appears to have survived. Also obtained were a spare set of RX02 "formatter" boards, which are the electronics that go in the chassis and sit above the drives. Does anyone know if a pair of RX01 drives and power supply can be converted to an RX02 by just changing the formatter boards in the chassis? Were the drives themselves different? or did they get to double density by just changing the formatter? Chris -- Chris Elmquist

15 years

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convert RX01 to RX02?

by jonas＠otter.se

On Mon, 13 Jun 2011, Chris Elmquist <chrise at pobox.com> wrote: > Unfortunately, the mice got to the RX02 before we did and really had > quite the palacial estate inside the cardboard box with foam packing > that held the unit. Needless to say, everything that comes out of a > mouse pretty much covered this drive system. Mouse effluent #1 turned > the whole thing to #2. It looks to be a total loss. That's why one needs a cat /Jonas

15 years

2
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MAINDEC for Alpha?

by tshoppa＠wmata.com

> Is there something like MAINDEC for Alpha? > I have an AS1000 that randomly goes catatonic and > I'd like to try to narrow down what's going on. On some occasions if running VMS, ANAL/ERROR can have useful tidbits. (Or ANAL/ERROR/ELV TRANSLATE on newer versions of VMS. Or DECEvent/Diagnose.) But... it's just an AS1000. Flaky memory and/or flaky sockets and/or crappy power supplies will be the majority of failures. Tim.

15 years

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Off-topic, but important: My mail seems to have been hacked

by madcrow.maxwell＠gmail.com

I got home and logged into my Gmail today only to find a pile of undelived/blocked message reports and a popup box saying something about a login from China. Apparently somebody managed to steal my account info and use it as a spam zombie. As I participate in many retrocomputing groups, I figured that this might be as good a place as any to let folks know what has happened as I try to clean up this mess. Mike

15 years

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OT RE: ham radio licenses

by IanK＠vulcan.com

So, me too. :-) I was first licensed back in 1972 and let it lapse about ten years later, but all this talk got me motivated, too. Unlike Dave, I missed the Extra exam (by only a point, they told me), but I did earn a General class ticket. I'm waiting for crystals to bring up my HT-220, a true "nostalgia toy" as I used to work on them back in the late '70s, and in the meantime I've been working some SSB on 40 and 20, and playing with a 2M handheld. I was going to restore a Drake B-line I picked up a few years ago - again, out of nostalgia for these outstanding radios - but in one of my few eBay transactions where I was snookered, I ended up with a radio that looks like it sat in someone's carport for a few years. After working on it for a bit, I decided it's "a bridge too far" for my available time and patience, and I picked up a Kenwood TS-430S through Craigslist. It's never too late to have a happy childhood! -- Ian (K7PDP) > -----Original Message----- > From: cctalk-bounces at classiccmp.org [mailto:cctalk- > bounces at classiccmp.org] On Behalf Of Dave McGuire > Sent: Sunday, May 08, 2011 5:26 PM > To: On-Topic and Off-Topic Posts > Subject: OT: ham radio licenses > > > I had a ham license (coded Tech class, KA2UZK) from 1984 to 1994, and was > quite active on VHF FM and HF CW during that time. I've missed it quite a > bit over the years and have always intended to relicense, but the piles of > rules changes gave me pause, as rote memorization isn't really my strong > suit. > > Well, the recent discussion of ham radio licensing motivated me to finally > get off my butt and do it. I studied off-and-on for a few days to assimilate > the new rules & regs, and registered for the VE test given at the hamfest in > Hagerstown, MD on April 31st. I sat for all three exams...Element 2 > (Technician class), Element 3 (General class) and Element 4 (Extra class). > > I am very proud to report that I passed them all the first time through! > And, I don't mind saying, the Extra exam made my head hurt. > The FCC processed my paperwork very quickly, and on May 5th I was granted > an Extra-class license and assigned call sign AK4HZ. > > Of I'm still in West Virginia handling family business, while all of my ham > gear is in Florida, but my mother (who is house-sitting for me in > Florida) was able to ship two of my HTs up here so I'd have something at > least. When I have access to my HF gear (Yaesu FT-ONE and FT-920, Heath > HW-7, HW-8, and HW-9 QRP rigs, and Heath SB-101) I hope to try out some of > the neat new(ish) stuff like PSK31 that came up while I was away. > High-tech stuff aside, I'm sure to do some plain old SSB and CW on the HF > bands. > > Anyway, enough of my blather, I'm just proud to have accomplished that > and wanted to tell everyone. I'm hoping to catch some of you on the air! > > -Dave > 73's DE AK4HZ > > -- > Dave McGuire > Port Charlotte, FL

15 years

1
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MAINDEC for Alpha?

by CCTECH＠beyondthepale.ie

Dave McGuire wrote: >On 6/13/11 5:11 PM, Daniel Seagraves wrote: >> Is there something like MAINDEC for Alpha? >> I have an AS1000 that randomly goes catatonic and I'd like to try to narrow down what's going on. >> It will do it shortly after boot, usually within 15 minutes, and won't run for longer than an hour at most. >> Sometimes it hangs hard and must be power-cycled, sometimes it crashes with random messages. >> The SRM diagnostics say nothing is wrong, even when run for very long loops. > > I can't help you with your specific question, but as far as general >info about the AS1000, if you find yourself spending too much time on >it, trash it and get something like an AS4100 to replace it. The AS1000 >is one of the crappiest, flakiest machines I've ever seen come out of >DEC. I've owned several, and every one of them ended up giving me problems. > I have had a fair amount of grief with my AS1000A machines but I wouldn't say it was much more than my other DEC machines which all have their own share of problems. Do you ever get a real crash complete with crashdump? If so, analysis of the dump may help pin down the problem. If not, there might still be something in the error log. It may be worth making sure the CPU board is seated correctly in its slot - I have had issues with this and I assume the AS1000 and AS1000A are the same in this respect. As far as I can tell the main difference between them is that the AS1000A has more PCI slots instead of (E)ISA slots. The B-Cache on the CPU board seems to be prone to failure, however it usually shows up in the diagnostics. It can be disabled by moving a jumper and the machine will run with reduced performance. (The memexer diagnostic will then spectacularly fail as it appears to divide something by the cache size...) I've also had memory failures but these also showed up in the diagnostics for me (sometimes the diagnostics seem to report the wrong slot as being faulty). However, I've also seen memory problems in other alphas cause random hangs while nothing shows up in diagnostics. You could try running with a reduced amount of memory. As with any machine, it is worth checking the the power supply voltages are correct and don't have excess ripple. Right now, I've got one that used to randomly halt and now randomly switches itself off. I suspect problems with the front panel switches or related logic but I haven't worked up the enthusiasm to check this theory out. Regards, Peter Coghlan.

15 years

1
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VAX 11/785

by useddec＠gmail.com

The owner of the 785 and I could not connect last weekend. I had an epidural earlier, and will be allowed to drive tomorrow, and hopefully walk better. The plan is now to see it this weekend, and I hope to take pics and a fairly accurate inventory. I will try to post same day. Paul

15 years

1
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MAINDEC for Alpha?

by dseagrav＠lunar-tokyo.net

Is there something like MAINDEC for Alpha? I have an AS1000 that randomly goes catatonic and I'd like to try to narrow down what's going on. It will do it shortly after boot, usually within 15 minutes, and won't run for longer than an hour at most. Sometimes it hangs hard and must be power-cycled, sometimes it crashes with random messages. The SRM diagnostics say nothing is wrong, even when run for very long loops.

15 years

2
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FS: HP iPAQ H1910 with Dyalog's Pocket APL

by ss＠allegro.com

Hi, I have an HP iPAQ H1910 (almost classic :) for sale: $50 plus postage. Includes: Working HP iPAQ H1910 (Pocket PC, with PocketPC 2002 Pro) (has Outlook, Pocket Excel, Pocket Word). Comes with A/C adapter, stylus, and an HP pouch (probably not the original/correct pouch) No box or manuals. Dyalog's Pocket APL, installed (was legitimately purchased and installed via download, hence no Dyalog media) (code date probably late 2003, and is probably 10.0.3) Synch/charge cable Has a screen protector installed. Condition: very good (nearly unused), except for minor scotch tape residue on the back, and one minor scratch on back. Stan

15 years

1
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recent score :)

by jlw＠jlw.com

> Ok, it's a small one, but it's wonderful to me :) > > I just got a case of 1/2 mag tape EOT markers :) Anyone need a pack? > > Jay West I was perusing old cctech items, and ran across this. I suppose I ought to have some, if you still have any left.... -- Jeff Woolsey {woolsey,jlw}(a){jlw,jxh}.com first.last at gmail.com "A toy robot!!!!" -unlucky Japanese scientist "And Leon's getting laaaarrger!" -Johnny "Delete! Delete! OK!" -Dr. Bronner on disk space management "I didn't get a 'Harrumph!' out of _that_ guy." -Gov Le Petomaine Spum bad keming.

15 years

1
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Booting OpenVMS/VAX from OpenVMS/Integrity

by ploopster＠gmail.com

Is it possible to clusterboot OpenVMS/VAX 7.2/3 from OpenVMS/Integrity 8.2? Peace... Sridhar

15 years

2
1
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DECserver 90L+

by fryers＠gmail.com

Hi all, I have a DECServer 90L+ that I am trying to use as a terminal server. After some time, I managed to get it powered up and started to look for MOP boot requests. However, the expected, give me a MOP boot image broadcast on the network did not occur. The Ethernet frames that I see give the impression that the DECServer is looking for a specific machine on the network. I am also not getting any output on the first serial port (MMJ to MMJ cable connected to a VT320)[1]. So, first question. Does anyone know how to do a factory reset on these. The operating manual isn't much help. :( Oh, I am considering it a success so far in that I got it powered up and saw Ethernet traffic from it! [1] I haven't checked my MMJ cable for continuity yet. Many thanks. Simon -- ------------------------------------------------------------------------ "Well, an engineer is not concerned with the truth; that is left to philosophers and theologians: the prime concern of an engineer is the utility of the final product." Lectures on the Electrical Properties of Materials, L.Solymar, D.Walsh

15 years

5
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Cambridge Z88

by lproven＠gmail.com

Possibly a bit modern for folks on here... ;?) I've just bought 1 cheaply on eBay (under ?15) and am considering a 2nd as a cheap way to get some additional storage for it. The device has 3 proprietary card slots, 2 for RAM or Flash, 1 for an EPROM. I was wondering if anyone had devised some device to let owners use much cheaper modern Flash storage in 'em, such as CF or SD cards? Given that they've been interfaced to Spectrums and so on these days... -- Liam Proven ? Info & profile: http://www.google.com/profiles/lproven Email: lproven at cix.co.uk ? GMail/GoogleTalk/Orkut: lproven at gmail.com Tel: +44 20-8685-0498 ? Cell: +44 7939-087884 ? Fax: + 44 870-9151419 AIM/Yahoo/Skype: liamproven ? MSN: lproven at hotmail.com ? ICQ: 73187508

15 years

1
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Exploratorium looking 4 working ASR-33 or KSR

by bdamer＠digitalspace.com

Team if anyone on this list has a working ASR/KSR-33 they would like to donate for an excellent exhibit at the Exploratorium, please contact Ron below, see note... Your Name: Ron Hipschman Your Email address: ronh at exploratorium.edu Do you guys have a functioning RS-232 teletytpe (ASR-33 or KSR-33) kicking around that might want to be donated to the Exploratorium for a possible exhibit? Ron Hipschman

15 years

8
7
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Exploratorium looking 4 working ASR-33 or KSR

by tsw-cc＠johana.com

Message: 13 Date: Sun, 12 Jun 2011 19:14:49 -0700 From: Eric Smith <eric at brouhaha.com> Subject: Re: Exploratorium looking 4 working ASR-33 or KSR To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Cc: ronh at exploratorium.edu Message-ID: <4DF57299.4090403 at brouhaha.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 06/12/2011 19:14:39, Eric Smith wrote: >On 06/12/2011 03:47 PM, Bruce Damer wrote: >> Team if anyone on this list has a working ASR/KSR-33 they would like >> to donate for an excellent exhibit at the Exploratorium, please >> contact Ron below, see note... >> >> Your Name: Ron Hipschman >> Your Email address: ronh at exploratorium.edu >> >> Do you guys have a functioning RS-232 teletytpe (ASR-33 or KSR-33) >> kicking around that might want to be donated to the Exploratorium for >> a possible exhibit? >> >> Ron Hipschman >> >I've seen a lot of model 33 Teletypes, and I've never yet seen one that >is RS-232. They are almost all current loop. I don't recall seeing any >mention of an RS-232 option in the manuals, although that may have >existed as a third-party modification. >IIRC, the model 40, 42, and 43 machines offered RS-232. The 40 is a CRT >terminal with an optional printer, and the 43 and 43 are 5-level and >ASCII (respectively) versions of a compact dot matrix printing terminal. Oh ye of little faith. Tymshare made LOTS of RS232 capable ASR-33's. They had a mod kit that they used along with the OEM call control unit. It came in several models. The early one (circa 1968) had a small transformer (to make the proper voltages) and a control board with a relay to turn on the motor when CD (pin 8) became true. It preserved the Local/Off/Line switch function (the rotary switch on the call control unit). A later version used push buttons on the cover plate that goes over the CCU section of the ASR/KSR-33. They replaced the Line/Off/Local rotary switch on the "front panel" that was subject to knob breakage (usually a panicked service call). The front escutcheon that had the hole for the Line/Off/Local switch was replaced with a nice Tymshare enhanced logo snap on plate that looked nice. My (at the moment lost or trashed) ASR-33 I did my own RS-232 conversion. It consisted of taking taps off of the transformer of the CCU (to get the other voltage) and including a nice solid state relay to do the "Carrier Detect" function for motor control. It required only a couple of transistors for the receive (RS232 to 20ma CL) and resistor tree for the other direction. Having a RS-232 capable ASR33 was a real nice thing to have when most of the connectors were DB-25's. On another note: I do have a couple of old DECWRITERS. An LA-30 (modified for lower case) and a larger wide carriage one that I don't remember the model number (upper and lower case as well). Ah yes, fun from the past....

15 years

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HP LaserJet 6P

by healyzh＠aracnet.com

Is it possible to change a 6P into a 6MP by adding a Postscript SIMM? If so do the RAM and PS from a 5MP work in a 6P? Just wondering about 6P I picked up as a spare, as my current Laser is a 5MP (and I like the PostScript capabilities), I figure it's good to know these things ahead of time. Zane -- | Zane H. Healy | UNIX Systems Administrator | | healyzh at aracnet.com | OpenVMS Enthusiast | | | Photographer | +----------------------------------+----------------------------+ | My flickr Photostream | | http://www.flickr.com/photos/33848088 at N03/ |

15 years

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New NSA declassifications

by cclist＠sydex.com

NSA releases 50K pages of documents. See: http://cryptome.org/0004/nsa-50k-docs.pdf Perusing the list, I see quite a number of IBM 7950 "Harvest" documents that should make for some interesting reading. --Chuck

15 years

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PDP-10 KI10 front panel auction

by pontus＠Update.UU.SE

Hi Did anyone here get this? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=160597433178 I was outbid, but I'm a bit surprised at the low price, this must be a hens teeth. Cheers, Pontus.

15 years

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Project for someone?

by lproven＠gmail.com

http://news.yahoo.com/s/ap/20110611/ap_on_hi_te/us_video_games_quadriplegics -- Liam Proven ? Info & profile: http://www.google.com/profiles/lproven Email: lproven at cix.co.uk ? GMail/GoogleTalk/Orkut: lproven at gmail.com Tel: +44 20-8685-0498 ? Cell: +44 7939-087884 ? Fax: + 44 870-9151419 AIM/Yahoo/Skype: liamproven ? MSN: lproven at hotmail.com ? ICQ: 73187508

15 years

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Need Wang VS6230 Boot Diskettes

by michael.99.thompson＠gmail.com

The Rhode Island Computer Museum has a Wang 6230 CPU in a VS5700 10-slot chassis along with four SCSI controllers and terminal controllers. That probably makes it close to a VS6230. The model for GENEDIT is a 6128. https://sites.google.com/site/ricmwarehouse/Home/equipment/wang-vs6230 The system was donated without the internal SCSI drive. We have plenty of SCSI disks that we can install, but we don't have the VS boot floppy or disk initialization utility for this system. Does anyone know where the diskettes for this system could be located? -- Michael Thompson

15 years

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FWD: PDP11 hardware available in Dayton, MN

by dgriffi＠cs.csubak.edu

Here's something I found in alt.sys.pdp11. I have no connection to Bruce Mitchell. Would someone please save this stuff from the scrap heap? David Griffith dgriffi at cs.csubak.edu --begin quote-- Tue, 07 Jun 2011 23:28:15 alt.sys.pdp11 Thread 1 of 1 Lines 17 PDP11 hardware available for pickup 6 Responses Dr. Klahn <xxdpplus at yahoo.com> at http://groups.google.com Newsgroups: alt.sys.pdp11 Jim Bostwick's computer collection is going for rescue or recycling. The following items are up for grabs: 11/44, 11/40, TU80, Pertec rack mount 9 channel tape, Fuji J11 board for 11/24, considerable DEC documents, RK07 drives and packs, RL01/RL02 drives and packs, Fuji Double Eagle SMDs, CDC 9730/160 SMDs, numerous ST506 drives. I'm sorry, but I don't have a detailed list of everything available. Any of the above that anyone wants, they can have free. Pick it up or arrange for pickup in Dayton, MN before June 20, 2011, the sooner the better. Bruce Mitchell Editor Emeritus, "The Multi-Tasker" Contact me through: http://www.miim.com/consult.html#conts

15 years

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Source for RT-11 TECO V36

by jhfinedp3k＠compsys.to

I have used TECO on and off for 30 years (mostly off for the past 15 years). The latest version that I can find which was released for RT-11 is TECO V36. This version was released with V04.00 of RT-11 in 1980. The TECO command "EO=" confirms that the version is V36. About a year ago, I found some source code for TECO V36 which assembles to V36 when asked via "EO=", but the TECO.SAV file is significantly different from the version released with V04.00 of RT-11 in 1980. The version based on the source code that I found is 51 blocks long and it uses more memory. The version from RT-11 V04.00 is just 50 blocks long and has a much smaller root section. Probably most of the code is the same, just that some of the code that is in the root of the version for which I have the source has been moved to an overlay. Does anyone have or know where I might find the actual source code for TECO V36 that was released with V04.00 of RT-11 in 1980? If it is just almost identical, that would be sufficient since it is usually possible to easily make a few modifications to obtain the identical TECO.SAV when the differences are minor. Often, the differences seem major since they can be the result of a single extra word (plus or minus) which shifts the rest of the code and makes an exact comparison impossible. But those changes are easy to find and correct if the knowledge and experience of what to do is available. Since the TECO V36 released with V04.00 of RT-11 is now 31 years old and I have not heard of any bugs, I have much more confidence in its reliability as opposed to the version for which I have the source code. Jerome Fine

15 years

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Free for the cost of shipping : TI Silent 700

by hp-fix＠xs4all.nl

As it says a TI Silent 700 terminal, acoustic coupler type. It's in working condition but the keyboard needs attention not all keys are working. -Rik

15 years

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DT-03 & DT-07

by quapla＠xs4all.nl

During cleanup & preparation for reducing my collection, I came across a small backplane with small flip-chips and marked 'DT-03'. The backplane can be mounted horizontally in a rack. The DT-07 is a single card with 3 berg connectors which apparently go to the 2nd card which is named 'DT-07 connector/terminator'. Anyone know what this is? Ed -- Dit is een HTML vrije email / This is an HTML free email.

15 years, 1 month

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Computer Move in Utah

by jthecman＠netscape.net

Hello The museum has been donated a complete ATEX system with all of it's supporting parts. I will be flying into Salt Lake City either late June 23rd or early June 24th to rent a truck move everything to a storage unit there and we can move it to Houston yet (low funds). If anyone living in the area can help it would be really great. Contact me off list if you can help. Thanks, John

15 years, 1 month

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Drawing lines on metal panels

by silvercreekvalley＠yahoo.com

I'm trying to recondition a metal front panel which is white with black lettering. ? Some of the controls have boxes drawn around them in black, and on one of the boxes, the black line has faded away. ? I'd like to repair this, and wondered if anyone has any suggestions. The line is about 1mm, possibly 2mm?wide. ? I've tried a quality marker pen, but the ink doesnt 'stick' to the panel, also its not a clean enough edge on the line. ? I'm thinking that something like lettreset might work - the line is only about 5cm long (or 2" in old money). ? I havent managed to find anyone selling 'lines' though, just letters. ? Any ideas? ? Thanks ? Ian ?

15 years, 1 month

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fun electronics+vintage success

by mtapley＠swri.edu

At 12:00 -0500 6/8/11, Dave wrote: > So, I rewrote the assembler assists for MVS, wrote the small pile of >JCL required to compile it all, and got it working today. I'm now >happily running SPICE simulations under MVS 3.8J on an emulated (via >Hercules) IBM 370. At 12:00 -0500 6/8/11, Randy wrote: >I built this too a couple months ago, using gcc in fortran mode. Geek meter: pegged! Pretty cool ... -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

15 years, 1 month

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Core Memory Board - DEC H215

by doug＠doughq.com

HI, A couple of months ago there was somebody looking for a replacement core board. I apologise for sending to the list, but I have lost the email. I have one - condition completely unknown, but at least the cores appear intact - and still covered by the perspex shield. It is available for shipping - I am in Australia. It is identified as a 8K x 18 array. Doug

15 years, 1 month

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PDP11 hardware available for pickup

by jhfinedp3k＠compsys.to

Appeared on :"alt.sys.pdp11". I know neither Jim Bostwick nor Bruce Mitchell. I have never had any contact with them. Jerome Fine >Dr. Klahn wrote: >Jim Bostwick's computer collection is going for rescue >or recycling. The following items are up for grabs: > >11/44, 11/40, TU80, Pertec rack mount 9 channel tape, >Fuji J11 board for 11/24, considerable DEC documents, >RK07 drives and packs, RL01/RL02 drives and packs, Fuji >Double Eagle SMDs, CDC 9730/160 SMDs, numerous ST506 >drives. I'm sorry, but I don't have a detailed list of >everything available. > >Any of the above that anyone wants, they can have free. >Pick it up or arrange for pickup in Dayton, MN before June >20, 2011, the sooner the better. > >Bruce Mitchell >Editor Emeritus, "The Multi-Tasker" >Contact me through: http://www.miim.com/consult.html#conts >

15 years, 1 month

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[hercules-os360] fun electronics+vintage success

by mcguire＠neurotica.com

On 6/7/11 5:43 PM, Dave wrote: > I hope to eventually be able to run this on my real System/370 at the > new building in PA. > > Be very interested in seeing the results from this on real hardware. > When I ran Spice II under VM/370R6 I got slightly different results to > the sample print outs provided. I know it was one digit in the last > place so could just be normal floating point jitter, on the other hand > it could be something in the Hercules floating point code not adding > enough guard bytes. Any comment It's easily many months off, but when I do bring up that machine, I'm sure I'll inform (i.e., "brag to" ;)) everyone here. -Dave -- Dave McGuire Port Charlotte, FL

15 years, 1 month

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fun electronics+vintage success

by mcguire＠neurotica.com

[cross-posted to the hercules-os360 and midatlanticretro lists due to relevant references] Due to all the stuff going on lately, there have been times over the past few weeks when I've needed some therapeutic hack time. I dug up the source code for the Berkeley SPICE 2 analog circuit simulator, plus the assembler assists for IBM 360/370 mainframes. SPICE 2 is written in FORTRAN IV, but it requires assembler assists for a few things, and they must be provided for whatever architecture and operating system you're porting it to. (well, C under UNIX, but assembler on most everything else) The 360/370 assembler assists were written for the VM/370 operating system; they use the DIAGNOSE interface to CP for TOD clock access. While I do run VM/370 from time to time, most recently I've been pretty deeply into MVS. So, I rewrote the assembler assists for MVS, wrote the small pile of JCL required to compile it all, and got it working today. I'm now happily running SPICE simulations under MVS 3.8J on an emulated (via Hercules) IBM 370. This required learning lots of new stuff, which of course is the best part. Now I know a lot more about 360/370 assembler, how to call assembler routines from FORTRAN and pass data back and forth, and how to compile/assemble and link multiple modules into a single executable via JCL. I've not yet tried it under OS/360 MVT, but I will soon. I hope to eventually be able to run this on my real System/370 at the new building in PA. -Dave -- Dave McGuire Port Charlotte, FL

15 years, 1 month

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