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Query as to Frieden calculator value

by jkjamestown＠verizon.net

I don't have any information on the value of the SBT10. However, I am interested on buying one. John Hornung

16 years, 6 months

cctalk Digest, Vol 75, Issue 8

by feldman.r＠comcast.net

Message: 2 Date: Wed, 4 Nov 2009 20:10:34 +0000 (GMT) From: ard at p850ug1.demon.co.uk (Tony Duell) Subject: Re: A few classic computer photos To: cctalk at classiccmp.org Message-ID: <m1N5mBh-000J3lC at p850ug1> Content-Type: text/plain > > > > > > I haev quite a collection of sub-miniature Minoltas already :-). And I > > have one Minox, which is a beautiful piece of engineering. Alas a ? > > Tessina > > is way out of my price range... > > Pentax 110's and Exakta's are my favorites. I wouldnm't call the former a 'favourite', although I have 3 or 4 of them with an assortment of lenses, flash, motordrive, etc. It's certainly an interesting camera, although too much electronics (and no manual override) for my taste. But Exaktas I love. I generally describe them as the 'Citroen DS of 35mm cameras' (if I ever learn to drive, a DS is top of my list of desirable vehicles...). The Exakta is totally unconentional. Every control is where you don't expect it. But then it has shutter speeds from 1/500 (or 1/1000 on later models) to 12 _seconds_. A film cutting knife (and you can run cassette-to-cassette) so you can cut off an process part of the film. Interchangeable viewfinders (I must repair the metering prism I have for mine -- alas the meter coil itself is open-circuit). And so on. Among the 35mm Exactas around me at the moment is a VP exacta taking 127 roll film (6*4,5 cm frame). Yes, I like them... -tony ------------------------------ Tony, You might like looking at? http://captjack.exaktaphile.com/ ?. My second camera was an Exakta VXIIa, and I have owned and used several Exaktas. I now have a very early Olympus OM1 (made shortly after Leitz forced Olympus to change the name from M1 to OM1). ----------------------------- Message: 4 Date: Wed, 4 Nov 2009 20:32:05 +0000 (GMT) From: ard at p850ug1.demon.co.uk (Tony Duell) Subject: Re: A few classic computer photos To: cctalk at classiccmp.org Message-ID: <m1N5mWW-000J3rC at p850ug1> Content-Type: text/plain <snip> > >> Too true. There are a lot of Olympus OM4s that are starting to suffer > >> from ciruitry failure (read: metering and shutter times go badly out of > > > > I seem to remeebr you should stick to odd-numbered OM's ?as they're > > mechanical. > > So that'll be the OM-1 series then, but they weren't pure-mechanical.The OM1 and OM3 IIRC. > aperture priority metering still needs 2x SR44 coin cells to run. > Also, the motor drive (if you have one) needs 4x AAs. True. But those functions aren't _essential_ to take photographs (unlike shutter timing). > > Full-mechanical? A Minox maybe? Or probably a Stereo Realist (which has > been mentioned elsethread). <snip> well not include any active devices). -tony ----------------------------- ?As I wrote to Zane off-list, the OM1 takes one?PX625. You can't get these now, but you can use a Zinc-Air 675. You just need to put a fat o-ring around it to get the correct diameter to fit the battery compartment. Bob

16 years, 6 months

Origins of Internet, old Physics Today article

by mtapley＠swri.edu

All, Catching up on my old magazine stack yesterday, I came across what looked like a good article in Physics Today (Nov. 1998, Vol. 51 No. 11) entitled "The World Wide Web and High-Energy Physics". It described the steps leading to the evolution of HTTP, HTML, and the adoption of those protocols at CERN and elsewhere. Nice photos of Tim Berners-Lee sitting in front of a NeXTStep screen, and *the* Cube that ran the original server. The article appears to be on-line at: http://www.physicstoday.org/archive.html (click on 1998, select the Nov. issue with the icebreaker on the cover, look in "articles". I have to admit though, my Safari 4.0.3 and Firefox 3.5.1, both on Mac OS 10.4.11, fail to display the article .pdf they think they are serving. Did anyone else note this article, and can comment on its accuracy? Does anyone want/need more info? -- - 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.

16 years, 6 months

Junkyard Cray

by wdonzelli＠gmail.com

I saw some Cray debris in my latest electronics junkyard - the three section power supply seat for an X-MP/24. Yes, X-MP. They came in with a load from Canada, and the odd thing was they clearly had been junked recently, as the conductive schmutz on the busbars was still sticky, yet not full of an accumulation of crap from being exposed for year. I am sicking the owner on the rest of the machine, but it is very likely to have been cut up by now. Still, any Cray owners need a few spare power units? -- Will

16 years, 6 months

VT420 Needs Home - Boston, MA area

by jtp＠chinalake.com

Just found an amber VT420 in my storage. Powers up fine, excellent condition, MMJ cable. Needs a home. Metro west Boston, happy to hold for a while. -Jim, jtp at chinalake.com

16 years, 6 months

Looking for LED display of a HP33E or HP34 or similar

by joachim.thiemann＠gmail.com

Hello, due to my playing around with the LED display from a busted HP34C (see my projects page, from my .sig) I got contacted by someone with a HP33E that needed a new LED display - his was faulty, so I agreed to send him my display - in fact I sent him the entire HP34C, given that there might be more bits useful to his restoration efforts. Long story short, due to my naivet?, the calculator got lost in the mail, so it appears. I _never_ lost anything in the mail, it wasn't a get-there-or-else kind of package, so I figured I save a few bucks and send it as regular small parcel - no tracking number. Well, live and learn, as they say. I guess with international shipments, bad things can still happen. So, is there anyone on the list who has a display for that type of HP calculator (I think they got used in several of the 3x series)? It should look like this: http://www.ece.mcgill.ca/~jthiem/project-files/HPLED/HP%20LED%20display%20u… I'm hoping _someone_ has one hidden away somewhere that wont power up due to failure other than the display... Joe. -- Joachim Thiemann :: http://www.tsp.ece.mcgill.ca/~jthiem

16 years, 6 months

Origins of Internet, old Physics Today article

by mtapley＠swri.edu

At 18:04 -0600 11/3/09, Keith M wrote: > >How about here? > >http://www.slac.stanford.edu/pubs/slacpubs/7750/slac-pub-7815.pdf > >This looks to be the same one. > >Forget the $23. > >Keith > That is essentially the same article. Minor editorial/wording changes and the final page was split off into a "box" in the magazine, but same content and same illustrations. Yeah, for $23, Physics Today can keep the editorial modifications :-). Thanks, Kevin! Now that I know everyone has access to it, I can recycle my paper copy. At 18:04 -0600 11/3/09, Rich Alderson wrote: >So not the origins of the Internet, most likely, but rather of the World >Wide Waste^H^H^H^Heb? Rich is right, I misphrased the subject line. -- - 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.

16 years, 6 months

Speaking of VAX memory... MSV11PK->MSV11PL?

by ethan.dicks＠gmail.com

Hi, All, Today's threads about maxing out VAX4000s reminds me that I've been meaning to ask if anyone has fully stuffed a 512KB MSV11-PK and turned it into a 1MB MSV11-PL? I have the requisite handbooks and know how to strap the cards and such, but having in the past upgraded DEC memory cards, I remember the "joy" of sucking out hundreds of holes and looking for cold joints when the card didn't work the first time I tried it (eventually, I did get it to work). I just haven't done it with a card that's more than a dumb block of RAM (the MSV11-P series has a CSR for querying parity status, among other things). Abstractly, I expect it's a matter of cleaning the solder out of the pins, installing a lot of 4164s (the card supports 4116s or 4164s), then changing a strap or two for the extra fields. I'm just wondering if anyone has done this and found and surprises. I'd love to just have a pile of 4MB Qbus memory lying around so I didn't have to fuss with things (for those that don't know DEC equipment, 4MB fills the memory space on a 22-bit Qbus (no PMI) machine), but I think I have exactly one card that large and it lives in a MicroVAX I. Thanks for any tips or warnings, -ethan P.S. - someday, I may try the same with an M8417 to turn an MSC8AA (16K) into an MSC8DJ (128K) by removing the 4K DRAMs and fully-populating the card with 4116s. The sheer number of solder joints to get right has held me back on that one.

16 years, 6 months

Talking to a VAX4000/300

by jplist2008＠kiwigeek.com

Greetings all; I picked up a VAX4000 last week and have been trying to get talking with it. I found a general VAX4000 series guide which says the terminal settings should be 8N1 and I've got the speed right between the dial on the front of the VAX module and the VT240 I'm using. I get partial data, with ?s scattered all over the place. Frequently it loses carriage returns and things get stuck scrolling off the side of the screen. What am I missing here? Is it not 8N1? I've tried flipping it around to 7N1, 7E1, etc, but usually that just results in absolute gibberish, the 8N1 provides the best signal-to-noise ratio. I'd appreciate any thoughts given. Elsewise, I'm pretty pumped. I have another 4000/300, but it has a bad PSU. I figured I'd put the two together to get the nicest working machine, store the spare PCBs and dump the chassis (anyone want an empty 4000/300?). The unit is complaining about some memory errors (came with four memory boards), but with all the crap coming up on the screen, I'm not entirely positive what it's complaining about since I can only read a partial output... Thanks again; - JP

16 years, 6 months

Panasonic JA751 8" drive question

by snhirsch＠gmail.com

I just purchased one of these on ebay, but am unable to find even a shred of documentation on the web. It's equipped with a "PC" style 4-pin Molex connector for power, unlike the more usual 6-pin square connector used by all my other 8" drives. What I'd like to confirm is whether this unit can actually run on 12VDC. It does not seem to work correctly with 12V applied, which could suggest either that it requires 24V or is defective. Before I let the magic smoke out of it, does anyone know the proper voltages for this drive? Steve --

16 years, 6 months

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