test-drb May 2007

test-drb@ccmp.vtda.org

235 participants
483 discussions

digital camera capabilities / was Re: 1000+ old computer in

by classiccmp＠memory-alpha.org.uk

Hi, > But as I poitned out, it's not _just_ the cost of the camera. >What do you suggest I connect it to? Can you get digital cameras >that connect to PERQs or PDP11s? Actually, my first two cameras both connected to the host computer via RS232 (just data lines and ground) so in theory.... ;-) Newer cameras tend to have USB, but I've never used mine this way as I always remove the memory card and plug it into a card reader anyway. I've not seen any about recently, but before multi-format USB card readers became popular I remember there being numerous RS232, single format card readers on the market - I'm pretty sure Jessops used to sell them. Might be a solution. TTFN - Pete.

16 years, 11 months

desirous of acquiring a Tektronix TC-2000

by chrism3667＠yahoo.com

protocol analyzer/dos luggable. ____________________________________________________________________________________ Looking for a deal? Find great prices on flights and hotels with Yahoo! FareChase. http://farechase.yahoo.com/

16 years, 11 months

Burroughs ICON

by chrism3667＠yahoo.com

Anyone have one? They were popular in Canada (maybe made there??). I want it. ____________________________________________________________________________________ Get your own web address. Have a HUGE year through Yahoo! Small Business. http://smallbusiness.yahoo.com/domains/?p=BESTDEAL

16 years, 11 months

FW: More about the dead VAX 4000-200

by cheri-post＠web.de

Ok, here's some additional information, which lets me think that the CPU-Board is definetly dead: I inserted a KZQSA-Board, as this board has an additional green DCOK-LED. While the one on the CPU-board does not lit, this one turns on (as does the one of the power supply). Moreover, I measured the supply voltages with an osciloscope, they are fine. The DCOK line has 3,51 Volts, and I assume that this can be interpreted as a "high" (please correctly me, if I'm wrong). There is some "noise", but this is just a very small voltage with a Vpp of 5 mV. The peaks appear with a frequency of 250 kHz, so I guess that this can be neglected and should not disturb the CPU-board logic. Well, I guess that I have to watch out for another KA660 board.... Regards, Pierre > Hi all, > > With the help of your hints, I did some measuring today regarding the voltages. > The voltages of the supply all lie in an acceptable range: 12,22V, 5,17V, 3,29V, -12,25V. > > I observerd recently, that when I turn on the VAX, it comes up with the languages menu und then freezes. The diagnostic displays turns from F to E and then back to F. > Turning it off and on again doesn't let the menu come up anymore (and the "E" on the display") anymore. It's completey frozen then. > I've got the impression, that some capacitors are playing bad games somewhere. > > Another thing: On the KA660-board, there are four other red LEDs, which turn on all together (and stay on) and there's a green LED. > In the CPU maintenance manual, it says that this green LED stands for "DC-OK". Well, it doesn't burn when power is applied... > Furthermore, I measured the DCOK and POK signals: The voltage is 3,51V. Do I have to interpret that as a "signal high" ? > > Tomorrow, I'm going to measure the signals and voltages with an oscilloscope. Do you guys have any further hints? > > > Regards, > Pierre > _______________________________________________________________ > SMS schreiben mit WEB.DE FreeMail - einfach, schnell und > kostenguenstig. Jetzt gleich testen! http://f.web.de/?mc=021192 > > _______________________________________________________________ SMS schreiben mit WEB.DE FreeMail - einfach, schnell und kostenguenstig. Jetzt gleich testen! http://f.web.de/?mc=021192

16 years, 11 months

Prime system available in UK

by james＠machineroom.info

Earlier this year I posted the following describing the Prime I need to get rid of. Despite some interest, it's still taking up valuable space in my workshop and I would really like it gone :-) I've offered to send one set of the full backup tapes (there's two sets) to Al Kossow (which I haven't yet got around to but will soon!) and some of the manuals are scanned and up on http://www.machineroom.info. I may even be persuaded into delivering at cost. If it doesn't go this time it will spend a week on eBay then sad to say will have to be scrapped after anything useful is removed. Cheers, James ---------------- Hi all, this is probably the shortest time I've owned a machine. Bought just a few months ago as a "project" I now have it to offer again. I simply don't have the skill to get this running. I've also got too many other projects :) It's ex Salford Uni Prime 2550. Comes with 2 disk drives, 1 tape drive, 3 boxes of manuals, 2 boxes of tapes, 4 5.25" floppy drives, a box of cables and a bunch of terminal lines. Pictures (including all the manual covers) are here http://www.flickr.com/photos/17208732 at N00/sets/72157594565763356/ Located in Southampton near M27 J7. It's yours for the taking. I'd like it to go to a genuine collector but will consider any and all interest! I can hang on to it for a few weeks but it's just taking up valuable space right now. If there's no interest in the entire system then I may part out boards, manuals, etc. As I understand it when I bought this it had previously sat for a year unused. Previous to that it had sat for a few years in a garage and been used occasionally and prior to that had been in the hands of the chap who rescued it from Salford. When I received it I had problems getting anything sensible on the terminal then things went downhill and I discovered the main 5V PSU had failed. I tried replacing that with an external 200A unit borrowed from my Cray EL but hadn't considered how many other signals are generated by the power supply. (MAN070 is available on bitsavers but this only covers the older Prime models - the power supply signals look the same but the VCP is very different). The ? 12 and +16 are all OK. I tried faking some of the power good signals and checked others (50Hz clock, etc). I even found one signal had broken on the backplane and have repaired that. Unfortunately without the manual for this specific model I'm stuck. In it's current condition it just sits with all front panel lights on and nothing on the console. CPU: As I say, the 5V supply has failed. I've patched several lines (the power good signals) inside the supply. I've had all the boards out, cleaned the connectors and vacumed the boards and case. I can include an 80A 5V supply if it's of any use to you (I'd hope 80A is sufficient. The 200A unit I was using is now back with the Cray!!) Disk drives: I found that the bolts holding the disk units in the casings were missing (a bag of "spares" was supplied which included the bolts and rubber mountings). I replaced the bolts before powering up, thankfully! One of the disk units powers up and spins. The other doesn't power at all. I removed all the dust too whilst the drives were out. Tape drive: Powers up and front panel buttons seem to "do stuff" but can't test any further. Tapes: These are all externally clean but a lot of the casings have cracked. You'll need some experience with 9 tracks to read these I expect. Documentation: There's a lot of very tidy manuals and also quite a few loose manuals in ring binders. There's also about 10 pocket guides. What is nice is the collection of history - there's administrator logs, service requests, etc. Floppy drives: I'm told the two original Prime badged units have failed. There's a couple of more modern replacements (and a handful of floppies) included - one of these should work! Without a working system I obviously can't test anything. Therefore, you should consider this as a source of spares or possible repair if you have the skill and/or manuals. I'm around most weekends for collection and can obviously give a hand loading. A standard SWB Transit does the job nicely. So come on, give the Prime a new home. Please :) James

16 years, 11 months

Early Electronic Image Capture

by jfoust＠threedee.com

At 09:07 PM 5/30/2007, Jason T wrote: >I remember the ads for those - I thought the color wheel was the >coolest thing. It's just a radio-control servo that connected to the spare mouse port. > I wanted one for my A500. Dunno what I would have >done with it, but it was on the back cover of every copy of Info >magazine, and it was from the Video Toaster people, so I had to have it. It was slow-scan, after all, so it could take the place of a scanner or a camera for static scenes. It was certainly cheaper. The Amiga had a real-time video digitizer caleld Amiga Live! with less resolution and color fidelity from not long after its release. - John

16 years, 11 months

Hazeltine 1400 info?

by legalize＠xmission.com

I just purchased a Hazeltine 1400 terminal from ebay. This terminal apparently has no lower case, so it seems like quite an oldie. Does anyone have information on it? Manuals, escape codes (if any), etc. would be appreciated! -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

16 years, 11 months

Power plug for a VAX 4000-300

by RodSmallwood＠mail.ediconsulting.co.uk

Hi Zane See previous reply to Tony Duell. It may be a US right angled kettle lead but its not a UK type. Kettles here (at least ours does) use standard IEC connectors. Regards Rod -----Original Message----- From: cctech-bounces at classiccmp.org [mailto:cctech-bounces at classiccmp.org] On Behalf Of Zane H. Healy Sent: 31 May 2007 01:02 To: cctalk at classiccmp.org Subject: Re: Power plug for a VAX 4000-300 Adrian/Witchy wrote: > On 30/5/07 17:48, "Rod Smallwood" > <RodSmallwood at mail.ediconsulting.co.uk> > wrote: > > > The mains connector into the H7874 PSU is a normal IEC connector > > with one exception. > > Directly below the middle pin is a rib or ridge that would require a > > groove or slot in the mating free connector. > > Yep, it's a right-angle kettle lead; if you've got one that'll work nicely. > >From what I can see amongst my VAXen it was only the QBUS machines > >that > warranted that sort of power cable; the whole thing was interlocked so > that if there was a power cable in there you couldn't do anything > other than disconnect. Even when you wanted to remove the PSU you had > to make sure there was nothing in the way of the interlocks..... If he is talking about the type connector I think he is, it is notched to prevent plugging a normal cord in. This is due to it pulling more amps than most computer cords are rated at. I'm not sure if this is the same thing you're talking about, but I think you're talking about something different. IIRC, I've seen a couple Compaq or HP servers that use these as well. Zane

16 years, 11 months

Anyone know anything about old TEC Terminals?

by aek＠bitsavers.org

> The cabinets are painted almost an IBM-style blue. Interdata blue, most likely. They are shift register memory dumb terminals. The most common place I saw them was with Interdata systems.

16 years, 11 months

Computer History Museum Article in the LA Times

by jwstephens＠msm.umr.edu

This is an interesting bit about the upcoming anniversary of the founding of Fairchild Semiconductor, a collector who has helped the CHM, Duane Wadsworth, and trying to save computer history. Hopefully it raises the profile of our hobby a bit. I apologize for the stupid nag login. I add in a bugmenot.com login to get to the article. I won't send a copy of the article on the open list, but might send to selected people (don't want to 'publish' it w/o permission, and do respect copyright here). I found this today (5/29) by searching for "computer history museum" in the times search if the link doesn't work. http://www.latimes.com/business/la-fi-semi29may29,1,5667117.story Username bugmenot at dodgeit.com Password bugmenot

16 years, 11 months

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test-drb May 2007