test-drb October 1998

test-drb@ccmp.vtda.org

175 participants
1141 discussions

Dumpster Diving was Re: Washington DC area vintage sources (was RE:ebay)

by sinasohn＠ricochet.net

At 08:28 AM 10/27/98, you wrote: >cans for evidence. The court ruled that stuff thrown into the trash and and >placed on the public right of way (street) for pickup was publicly >available and no longer private property. Of course, many commercial trash As I recall, the police must wait until the authorized agents of a designated service company (i.e., the garbagemen) have put the potential evidence into their own container (garbage truck) before they can get at it. But, IANAL... --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad roger(a)sinasohn.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.sinasohn.com/

25 years, 6 months

Dolphin (was Re: ebay)

by sinasohn＠ricochet.net

At 04:32 PM 10/27/98 +1, you wrote: >> No, I'm talking about the Dauphin DTR-1, a cute little 486-powered, >> pen-and-keyboard-capable portable computer. The "DTR" stands for >> "desktop replacement," which was overpromising a bit. As far as I >> know, there was no "DTR-2." I believe there was a DTR-2, though I don't know if it ever made it to production. Dauphin also made some more traditional laptops. --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad roger(a)sinasohn.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.sinasohn.com/

25 years, 6 months

Microvaxen bits etc.

by netcafe＠pirie.mtx.net.au

-----Original Message----- From: Tony Duell <ard(a)p850ug1.demon.co.uk> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Thursday, 29 October 1998 8:54 Subject: Re: Microvaxen bits etc. >[Using the transceiver section of an ethernet card] > >> I think it needs +-12v and +- 5v, but that's not a big problem. (Diskless >> workstation PSU) > >Well, the card might, but the transceiver section will almost certainly >only need one supply rail. It runs off an _isolated_ (to 1.5kV I think) >PSU on the card (there'll be a DC-DC converter on the card for this). >I've never seen such a converter than needs more than one supply voltage >input. Yep. Dead right. 12-15v dc to feed a dc-dc xvtr that produces 9v to run the NE8392C xcvr chip. >> > Did I mention that you'll need the data sheets on the transceiver chip? >> >> You did. Know a source? Online one preferably? > >Sure. Try the semiconductor manufacturers. AMD, National Semiconductor, >Philips, possibly. They should have the data sheets in pdf format to >download. I remember downloading the National Semiconductor >8390+8391+8392 data sheets about a year ago. Exactly as you recalled. I have the PDF files with data for the lot. Amongst other things, there is a page with a "Typical Application" which is a cct diagram of a what amounts to an AUI-Thin cable transceiver. Complete with pinouts of a typical pulse xfmr. Exactly what I needed. So I'm gonna build me a couple or three from bits of network cards. Should be able to do it on a piece of veroboard in about an hour or so. Cabling can be avoided by connecting the pins of a male 15pin d directly to the veroboard, then the whole thing can plug in to the ethernet AUI port on the back of the VAX. This has basically solved my problem, as I have several elcheapo ethernet cards laying about that can supply all the parts except the 15 pin male d. Thanks for your help. Cheers Geoff Computer Room Internet Cafe Port Pirie South Australia. netcafe(a)pirie.mtx.net.au

25 years, 6 months

Microvaxen bits etc.

by pete＠dunnington.u-net.com

On Oct 29, 18:23, Daniel T. Burrows wrote: > Subject: Re: Microvaxen bits etc. > Now I get complaints > that I am never down at the house, but when I bring things down there to > work on they are in the way. Liz got quite shirty about the 20" monitor and the printer in the dining room. She seemed to think that ten printers was excessive, even when I pointed out that that was only one for every 3.5 systems. > take over one of the bedrooms and put a system in there. I even have a 4 > inch conduit running the 350 feet from the office to the house. It is > buried in the same trench as the power, phone, water, and sewer feed to the > office. It has been there for 4 years and I still have not run the coax > down to the house. That's OK, it took me two years to run the two serial lines from my room to the garage, and four more to do the coax. Now I have to run Cat5 as well... sometime. -- Pete Peter Turnbull Dept. of Computer Science University of York

25 years, 6 months

Kurzweil KVS

by ddameron＠earthlink.net

Hi Doug and all, At 02:22 AM 10/29/98 -0600, you wrote: >On Wed, 28 Oct 1998, dave dameron wrote: > >> In a recent "Electronic Design" magazine, the column "40 years ago", there >> was an article about IBM and digitized speech. It is an interesting column, >> as well as Bob Pease's. > >Can you summarize the article? I can imagine a lot of ways to digitize >speech without a lot of RAM, but I'm curious about what they were doing in >the 50's with the data. I seem to remember things like "formant" >decomposition and analysis to be reasearch topics in the 70's. Come to >think of it, I don't even know when things like the FFT were invented, but >I thought even that was not until the 60's or so. > I don't have it anymore, it had a lot to do with sampling and compression, as they had only 32k memory. It appeared in the last 4 months, so the original article was in 1958. Maybe someone else can find it easily? -Dave

25 years, 6 months

TRS-80 Model I

by sinasohn＠ricochet.net

At 12:34 PM 10/25/98 -0800, you wrote: >When I was a kid I tho't that the keypad was incredibly lame because it >didn't have a comma key. The only thing I would ever use it for would have >been typing in numbers in DATA statements so it seems like a dumb idea. Well, as someone who learned 10-key touch before I learned to type, the idea of a comma on the keypad does not seem so obvious. More important was the plus, minus, and period keys, for true data entry. --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad roger(a)sinasohn.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.sinasohn.com/

25 years, 6 months

TRS-80 emulators

by sinasohn＠ricochet.net

>So, to come back on topic, the best for a TRS-80 >emulator is still DOS. Install it, or even boot Dunno if this link is still up, or if it's old news, but try http://www.agate.net/~tvdog/emulators.htm and see what you get. Interestingly enough, I used to have the URL for a Model III emulator that ran on the Atari ST. You could then get the ST emulator for DOS.... --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad roger(a)sinasohn.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.sinasohn.com/

25 years, 6 months

Personal Replies to Sender Was: RE: DOS disks?

by cfandt＠netsync.net

Briefly, here could be a solution to us inadvertently posting what should be private replies to our whole list: Can listproc on the U. of Wash. server be set so that the "Reply to:" field defaults to original poster and not to ClassicCmp? For example, Majordomo software running on a server handling a different list I am a member of is set this way. Therefore a reply will go to the previous sender in a msg thread. If the message is to go to the whole list then we simply type the "r-390(a)qth.net" address into either the "To:" or "CC:" field. Works very well it seems. FYI: 'R-390' is the military nomenclature of a high performance military surplus shortwave receiver that is truly a "classic" as far as its owners are concerned. I would even wager that Wm. Donzelli may have one too. As the reasoning that the message should always go to the list, we should just remember to specify the ClassicCmp addr. in the "To:" or "CC:" field. If we do not see a msg we intended for the list come up in our own email Inbox later then we know that we accidentally forgot and then have the option of reconsidering sending it to the whole list. This will help keep personal stuff such as discussing a deal to buy/sell something from the rest of the world --or those flames that get thrown around which nobody here appreciates. I'm still waiting for M$ s/w that works well. Whatever happened to Bill Whitson anyway? Regards, Chris At 13:48 10/29/98 +0000, Julian Richardson <JRichardson(a)softwright.co.uk> wrote: >>> oops, that was supposed to go to Sam only. >>> ELM needs a "reply to sender" key. > >*sigh*. In exchange the menu option is "reply to sender" but that >replies to the list, despite the name of the original sender appearing >in the "from" column. One day MS will write some software that works... >(OK, so that's completely off-topic... but it won't be so much ten years >from now... look at it as being ahead of its time... :) > >cheers > >Jules >> >> >> > Christian Fandt, Electronic/Electrical Historian Jamestown, NY USA cfandt(a)netsync.net Member of Antique Wireless Association URL: http://www.ggw.org/freenet/a/awa/

25 years, 6 months

Microvaxen bits etc.

by dburrows＠netpath.net

> >The first paragraph sounds familiar. Liz complained about the black cable >snaking along the landing -- even though she finally got email and remote >printer access out of it -- because it was "ugly black" RG58, as she put >it. She wasn't at all impressed with a bright blue AUI drop cable paired >with bright yellow thick ethernet. I just thought she'd be pleased with >something prettier... I know the problem all to well. They just have no sense of humor on such things. I moved all of my equipment to mobile homes I use for office and storage. 4 now soon to be 7 all sandwiched together. Now I get complaints that I am never down at the house, but when I bring things down there to work on they are in the way. Now that the kids are off to college I plan to take over one of the bedrooms and put a system in there. I even have a 4 inch conduit running the 350 feet from the office to the house. It is buried in the same trench as the power, phone, water, and sewer feed to the office. It has been there for 4 years and I still have not run the coax down to the house. Dan

25 years, 6 months

Microvaxen bits etc.

by pete＠dunnington.u-net.com

On Oct 29, 21:26, Tony Duell wrote: > Subject: Re: Microvaxen bits etc. > > You guys are both lucky. I inherited 600' of _bright orange_ (day-glo) > > 10Base2 cable that my wife will barely allow in the *garage*... > > > > Oh, my parents (who own the house that's full of my little collection) > prefer bright cables as they're less likely to trip over any temporary > cabling I happen to have plugged together... The first paragraph sounds familiar. Liz complained about the black cable snaking along the landing -- even though she finally got email and remote printer access out of it -- because it was "ugly black" RG58, as she put it. She wasn't at all impressed with a bright blue AUI drop cable paired with bright yellow thick ethernet. I just thought she'd be pleased with something prettier... -- Pete Peter Turnbull Dept. of Computer Science University of York

25 years, 6 months

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test-drb October 1998