waashk/20ng huggingface dataset:
I have used a product called "Goof-off" it comes in a little yellow  can (about the size of a deck of playing cards).  It has worked well for removing all kinds of sticker and tape residues.  NOTE: always test a small area in an inconspicuous place before using.    Good luck,
I'm giving up hardware design and am selling my Oscilloscope:  	BK Precision  Model 1541B 	40 MHZ Dual-Trace 	Barely Used 	$450 firm   (Fry's sells it for $589+tax)  Prefer people in Silicon Valley, so I don't have to ship it.
Hi all! 	Quick question.  Could someone please send me a pinout of the cable that goes between a NeXT cube and the monitor?  Also, I am interested in the video signal (sync type, horz/vert rate) so any information on that would be greatly appreciated also.
Great, the first advantage of cheap coax, I've ever heard.  Cheers   Robert  (HB9NBY)
Is there a readily available solvent that does a good job at removing the   corrosion/encrustation that collects on the battery terminals (usually the   cathode) when using alkaline batteries (or more accurately, when NOT using   them for a long time)?
In article <C5r6Lz.n25@panix.com> jhawk@panix.com (John Hawkinson) writes: >One other thing: a friend of mine mentioned something about near-UV >light being cheaper to get at than actual UV light. Does anyone >know what he was referring to?  I don't want to get into a semantic argument, but contrary to some other postings "near UV light" /is/ "actual UV light."  The "near" means that it is close to the visible spectrum (i.e. of relatively long wavelength), not that it is "nearly UV."  (I'm sure you can figure out now just what "far UV" is.)  Regular incandenscent flashlight bulbs emit tiny amounts of UV in the near end of the spectrum, such that a filter can be used to remove the visible light and thus create a weak UV source.  Stronger sources are going to require gas (probably mercury vapor) discharge tubes (such as fluorescent tubes with UV phosphor).  Be careful, though; strong UV sources can cause physiological damage, especially to the eyes.  The shorter wavelengths are the most dangerous.  It wouldn't project a beam like a flashlight, but replacing the tubes in a portable fluorescent lantern with UV tubes would be a relatively cheap way to create a portable source.  It would be bright enough to be useful, but not dangerously so.
william burchill (williamb@ee.ubc.ca) wrote: : 	Does anybody out there know how the hand held breathalyzer used : by our police works?  I would like to hear about this and the more : general problem of detecting smells by machine. :  : Thanks, William. :  : williamb@ee.ubc.ca :   From what I have read about these little gadgets, it works on a electrochemical galvanic principle. The sensing unit has a chemical matrix which produces an electrical voltage proportional to the amount of chemical compound it is designed for ... in this case I believe it is the Hydroxyl group???    I have also heard -  not tested :-)  - since common gasoline is also a member of this Hydroxyl group, it will also cause a failing breathalizer failure! Next time you get stopped for DUI, say you just siphoned gas from your neighbors car (you know..... the Oklahoma credit card) and chances are you won't get a DUI ticket!!!!     Jerry Long
I had the good luck to obtain an EICO dynamic conductance  tube tester for a song. Unfortunately, I was a little out of key; the only thing wrong with it was an open meter movement. Does anyone know where I can find either another meter movement like it, a dead-but-not-the-meter-dead unit, or schematics  to specify the current scale of the meter movement? I can cut and paste a more sensitive movement in if I can find what the full scale current was. Or... is EICO still contactable?  The thing is a model 666 -nope, not a joke or any sort of snide reference.
drand@spinner.osf.org (Douglas S. Rand) writes: :  :    Hams can legally run up to 1500 watts.  It is very unlikely, however, :    that a ham would be running that kind of power from a car.  Ham rigs :  : Not possible either.  You'd need about a 300 amp alternator for : just the amplifier.  I can just see it.  You need to slow : down on a downgrade,  so you hit the push to talk button.  Well - 100+ amps anyway. Transmissions are generally for a short interval. The battery would supply the rest. Of course, if you transmitted too much, you would run the battery down.  It really would not be that much of a brake.  Even at 50% efficiency, 1500 watts would only consume 4 horsepower.
I've got the same problem; I can't dig up any info on the jumper settings on the hd 3.5" drives.  Can anyone recommend a reference book(s) on the subject, rather than a "quick fix" type answer??  I was going to start hooking up things and logging the results, but the prospect of a ten second smoke test deters me...  Thanks, Kirk Cowen.
Sounds like a job for a universal time reciever.  I don't know the logisitics of the situation, but if you could just place a reciever in snow and place the oscillator in a nice lab somewhere else, your problems should be solved. Just a suggestion.
In article <1r0b69INN5ct@flash.pax.tpa.com.au> mgregory@flash.pax.tpa.com.au (Martin John Gregory) writes: >I am having trouble obtaining the specified standby current drain from >a MC146818A Real Time Clock... >lowest current drain I can acheive at 3.7V Vcc is 150uA.  This is >three times the specified MAXIMUM... >1) Made sure that RESET/ is asserted for Trlh after powerup, and AS is >   low during this time. >2) Made sure that there is a cycle on AS after the negation of RD/ or >   WR/ during which STBY/ was asserted...  Are any of the inputs to the chip coming from TTL?  Standby-drain specs for CMOS chips typically apply only if inputs are pulled all the way down to zero or all the way up to Vcc.  TTL isn't good at doing the former and it won't do the latter at all without help from pullup resistors.  This sort of thing can easily multiply power consumption by a considerable factor, because the CMOS transistors that are supposed to be OFF aren't all the way hard OFF.
In article <1993Apr22.060607.12380@macc.wisc.edu> jvannes@vms.macc.wisc.edu writes: > You are probably referring to the products of > > 		Opto Diode Corp. > 		750 Mitchell Road > 		Newbury Park Ca 91320 > 		805 499-0335 > > The make some amazing IRLED's.  The really high-powered devices are arrays of > 3, 6, or 9, LED's on a TO-66 header.  The 9-chip model puts out 6.5 Watts in > response to a 5 Amp, 10 uS. pulse at a .5% duty cycle.  I think  these are > designed as illuminators for IR vision systems.  Jeez, that should do it.  > I would also be interested in the application here.  I work with a Dance and > Technology program, and want to build something to track dancers on a 30 foot > wide stage from 50 feet away.  Very interesting application, controlled lighting and environment, moderate distances ... might be more interesting than my application.  Just a thought, you could use a roof mounted IR sender, similar in operation to a TV remote control that tells each persons coded IR pulser to send a pulse.  A Hamamatsu detector, as was mentioned in a previous message in this thread, would give the current position.  Store and collate this on a computer and you could replay the movements on the screen.  Interesting!  --
Does anybody know anything about the chips D6275A/D6235A/D6205A chips from DSP Telecommunications Inc?  I'd greatly appreciate information about price, pinouts and peripherals.  Regards,    Henrik Bohre
I have a couple applications for high speed data links 1__replacement of ultrasonic signal coaxial cables with fiber optic cable 2__applying fiber optic slip ring for 16 channel ultrasonics inspection system for CANDU reactor inspection 3__remote data link from ultrasonic pipeline inspection device including transfer of 16 channels via microwave or other higher speed transfer of ultrasonic data from remote inspection head.  I would be happy to share sources...other info as acquired. Please mail me or post here. .....this is a long term upgrade over the next years _+
A surplus-dealing buddy of mine came up with two emulator pods:  	HP64220C (for HP 64100 development station). 8086 target 	processor. DIP head. Does not include board that plugs into 	the 64100.  	Applied Microsystems 80C186/188 pod, LCC head.  If you have an interest in either, let me know. They look to be in excellent condition. He doesn't know what to do with them, which may mean that they'll be cheap.  --  --------------------------------------------------------------------        Dave Medin			Phone:	(205) 730-3169 (w)     SSD--Networking				(205) 837-1174 (h)     Intergraph Corp.        M/S GD3004 		Internet: dtmedin@catbyte.b30.ingr.com   Huntsville, AL 35894		UUCP:  ...uunet!ingr!b30!catbyte!dtmedin     ******* Everywhere You Look (at least around my office) *******
>>	I was wondering if people had any good uses for old >>256k SIMMs.  I have a bunch of them for the Apple Mac >>and I know lots of other people do to.  I have tried to >>sell them but have gotten NO interest.  How hard would it be to somehow interface them to some of the popular  Motorola microcontrollers.  I am a novice at microcontrollers, but I am starting to get into them for some of my projects.  I have several 256k SIMMs laying around from upgraded Macs and if I could use them as "free" memory in one or two of my projects that would be great.  One project that comes to mind is a Caller ID device that would require quite a bit of RAM to store several hundered CID records etc...                                                               - Dan --               Daniel Joseph Rubin     rubin@cis.ohio-state.edu
drand@spinner.osf.org (Douglas S. Rand) writes:  >   Hams can legally run up to 1500 watts.  It is very unlikely, however, >   that a ham would be running that kind of power from a car. > >Not possible either.  You'd need about a 300 amp alternator for >just the amplifier.
Hello, I'm curious what sort of neat features exist on high-end answering machines today. In particular, I'm interested in features of digital answering machines. Also, what is the typical amount of storage(in minutes) for these digital answering machines?  The reason? I'm hacking together an answering machine program for my ZyXEL modem and I'm wondering if I'm missing something on my wish list.  arthur
wb8foz@skybridge.SCL.CWRU.Edu (David Lesher) writes: :  : (Why do ALL  postings from bnr seem to have bogus addresses?  : Both  : 	gstovall@crchh67.NoSubdomain.NoDomain : and  : 	gstovall@bnr.com : bounce.... :  : This makes it rather difficult to reply....)  They go through UUNET. This is often the problem - as UUNET often has problems with return paths.  ... deleted ...  : Oh, and most importantly, no amount of transmitted RF, short of a : transmitter the size of small house, is likely to cause the equipment : failures you describe. So you are looking at two different problems.  Yep.
In article <1993Apr2.182402.28700@walter.bellcore.com>, deaddio@ski.bellcore.com (Michael DeAddio) writes:  |> |> The 'beam' is split in two, with one beam aimed at the target car (sort of) and |> |> the other at the ground.  The speeds of each are calulated for the final |> |> number |>  |> Actually, this is true on the more expensive ones, but the cheaper ones |> just read the speedometer.  I've never seen a speedometer-reading model. Are you sure? Who makes them? Consider the difficulty of reading the speedo on various makes of cars in use... I've seen single beam moving-mode and split beam moving-mode.  --  --------------------------------------------------------------------        Dave Medin			Phone:	(205) 730-3169 (w)     SSD--Networking				(205) 837-1174 (h)     Intergraph Corp.        M/S GD3004 		Internet: dtmedin@catbyte.b30.ingr.com   Huntsville, AL 35894		UUCP:  ...uunet!ingr!b30!catbyte!dtmedin     ******* Everywhere You Look (at least around my office) *******
In article 1834@cmkrnl.com, jeh@cmkrnl.com writes: >In article <1993Apr14.172145.27458@ecsvax.uncecs.edu>, crisp@ecsvax.uncecs.edu (Russ Crisp) writes: >> SO..  Here's my question.  It seems to me that I'd have the >> same electrical circuit if I hooked the jumper from the neutral >> over to the ground screw on new 'three prong' grounding outlets. >> What's wrong with my reasoning here?   > >What you CAN do if you want three-prong outlets without additional wiring is  >to use a GFCI outlet (or breaker, but the outlet will be cheaper).  In fact, >depending on where you are putting your new outlet(s), a GFCI may be *required*.  You still need to supply a proper ground for a Ground Fault Circuit Interrupter! So rewiring is still a part of this job, however, the ground may be connected to a local earth ground, rather than back at the breaker box.  As Jamie said, GFCI devices are required by code in a number of places, most notably: bathrooms, and outside the house.  I do suggest the use of GFCI outlets, rather than the breakers.  You will end up with much less headaches.  Noise pickup in long cable runs is sometimes enough to cause frequent tripping of the breakers.  GFCI devices do save lives, if you decide to install them, be sure to check them regularly (using the test button).  Running the family business (electrical supplies and lighting) for many years, I have seen too many seasoned electricians fried, because they forgot to double check their common sense list.  Please exercise caution. --- 			Gary Gendel Vice President:				Current consulting assignment: Genashor Corp				Mentor Graphics Corporation 9 Piney Woods Drive			15 Independence Boulevard Belle Mead, NJ 08502			Warren, NJ 07059
In article <sehari.735331566@marge.ecss.iastate.edu> sehari@iastate.edu (Babak Sehari) writes: >--- > >I was wondering, what copy protection techniques are avaliable, and how >effective are they?  Has anyone have any experience in this area? > >                      With highest regards, >                           Babak   Sehari.  	Uh oh... 	Umm, there are a number of copy protection schemes.  Some involve modifying the physical media, and some involve encryption schemes, &c. 	All of the ones that have existed over the course of computing have been successful for a time.  I recall, however, near monthly releases of new ways to "crack" the copy protection scheme of the latest releases.  The fact is, none of them are completely secure, or anywhere near it.  Some are more or less difficult to crack, and some have already been cracked. 	I guess what I am saying is that your question is difficult, if not impossible, to answer.  What exactly do you want to know?  Do you need a good one for a project you are working on?  How secure must it be?  Are you trying to crack one that someone else has used?  I can probably make suggestions, assuming the activity is strictly legal.  (In general, it is a BAD idea, legally, to tamper with copy protection.  It can also lead to corruption of files which you necessarily do not have back ups of (being as they are copy protected,) which can be devestating.)  Do you have absolutely no ideas for practical applications, and are merely curious? 	Please clear up those questions, and I'll try to help as much as I can.  	Incidentally, the "Uh oh..." at the top is indicative of the dread anyone who has watched their friends hacking equipment be carted off feels when they are asked how to hack.  The area you are broaching is wrought with dangers, many of which include breaking the law, or at least addressing it (from one side or the other.)
In article <C5sLMB.9w6@cup.hp.com>, dclaar@cup.hp.com (Doug Claar) writes: > While driving through the middle of nowhere, I picked up KNBR, AM 1070, > a clear-channel station based in Los Angeles.   KNX AM, 1070 in LA, will be unhappy to hear about this, I'm sure. :-)   (isn't KNBR in the bay area?)
Yes, I know it sounds crazy. Call it an urge. Call it what you want. Just don't ask why :-)  Anyway, I'd like to build a UV flashlight, cheaply. "flashlight" means it should be reasonably portable, but could have a power pack if necessary.  My main question is the bulb: where can I get UV bulbs? Do they need a lot of power? etc., etc.  I'm not too concerned with whether it's long-wave or short-wave (but hey, if anyone has a cheap source of bulbs, I'll take both).  One other thing: a friend of mine mentioned something about near-UV light being cheaper to get at than actual UV light. Does anyone know what he was referring to?  Thanks much.
On an A/D board I've got, I'm using the A/D lines.  It measures  the voltages properly, ie: with a 7v power supply it reg's 7v and with  5v, it reg's 5v.  Problem is when I've got the input voltage, and I wish  to lower it via a resistor.  The sensitivity of the board is so great  that I can triger it with holding the 5/7v wire in one hand, and touch  the probe and it will register the full input voltage.  A 1m resistor  only lowers voltage by .1v so this is not too feesable.                    What could the problems be and what else could I use to lower the input voltage?  (btw I've got it grounded correctly)       _________________________________________________   Inspiration  |   ___                             |   comes to     |  \   o  baden@sys6626.bison.mb.ca |   those who    | (  ^  ) baden@inqmind.bison.mb.ca |   seek the     |   /-\      =] Baden de Bari [=    |   unknown.     |                                   |
In article <1993Apr26.210417.2984@socrates.umd.edu> johng@socrates.umd.edu (John Gustafson) writes: >>I know this is a long shot, but does anyone know what solvent I should  >>use to clean duct-tape adhesive from carpet? > >May I tease out a sub-thread from this discussion? > >Can you all please tell me how to remove  the stickers from new houses' >appliances and outdoor lampposts?  Especially the lamppost, right on >the glass.  Isn't there something you can rub into stuck-on labels that >will release them from their death-grip on glass or other hard surfaces?  "Petroleum naphtha," available at most hardware stores, will remove most adhesives.  --
I missed the first article[s] on this line due to not having a chance to read the news for a couple of days...  The idea is commercialized in at least one product, the Private Eye.  That's a small cube-shaped device that the user straps around the head similar to a sweat band.  There is a boom that comes from the side on which the device is mounted so that it is positioned in front of the user's eye.  The Private Eye we had here for evaluation was Hercules-MDA compatible.  The innards are a row (~400 LEDs) that are swept up and down by a galvonometer-like movement.  The result is that the sweeping LED bar forms a fused raster.  There is a virtual image projected in front of the user that the visual system tends to fuse with the background.  I didn't like the device very much.  I found it easiest to use if I looked at a blank white wall.  I had problems with focus tracking if I glanced down to look at my keyboard for an out-of-the-way key. The unit also emitted a soft buzz and vibration which I found annoying.  Some people didn't seem to mind the buzz.  Properly used, however, the image clarity was quite crisp.  I don't know if the company has taken the technology any further in the last year or two, but it did seem to have promise.
where can I buy 1 or 2 of these chips (pref in Australia)? What is name and address of `UMC'?  Dan  --  ---------------------------------------------------------------------- Adrian Blockley                    ! I may say something profound    Environmental science              ! here one day.                   Murdoch University                 !                           Western Australia, 6153            !                                blockley@essun1.murdoch.edu.au     !                                 phone 09-360 2737                  !
In article <2775@snap> paj@uk.co.gec-mrc (Paul Johnson) writes: > >I recall reading of a phonograph which used mechanical amplification. >Compressed air was squirted out of a valve which was controlled by the >pickup.  The result was noisy and distinctly lo-fi, but much louder >than a conventional phonograph.  It tended to wear the disks out >pretty quickly though.  This was the Pathe you are thinking of, although there were other imitators. It didn't wear the disks any more than conventional acoustic designs, but it did have a high noise level due to the continual hiss of escaping air. There are a lot of them still operating, and they are pretty ingenious.
In article <LANCER.93Apr15150228@oconnor.WPI.EDU> lancer@oconnor.WPI.EDU (Stephe Lewis Foskett) writes: > >I'm doing sound for a couple of bands around here and we need Direct >Input boxes for the keyboards.  These are the little boxes that take a >line level out of the keyboard and transform it into low-Z for the run >to the mixer.  Sadly they cost like $50 (or more) each and I'm going >to need like 5 or 10 of them!  I looked inside one (belonging to >another band) and it looks like just a transformer.  Does anyone have >any plans for building them?   > $50 each!!  Don't bother trying to make one yourself, just shop around a little.  I've found DOD brand DI boxes for as cheap as $20 each.  You can  get higher end ones for more, but for PA use for bands, I wouldn't bother. Making one yourself might work, but getting a sturdy enough enclosure might be hard (they're made of heavy guage metal, since they're always on the floor, being kicked around a lot). For any additional questions on this topic, you  might want to post to rec.audio.pro 						Lukas Zahas 						lzahas@bu.edu
In article <C5L5x0.KJ7@vcd.hp.com> johne@vcd.hp.com (John Eaton) writes: >-s87271077-s.walker-man-50- (swalker@uts.EDU.AU) wrote:  >During the nuclear fission reaction the uranium fuel can get hot enough >to melt. When this happens the liquid uranium is pumped to the cooling >tower where it is sprayed into the air.   	Nonsense.  First, the uranium fuel is sealed in zirconium alloy cylinders (which don't melt in any circumstances short of  major failure of the power plant).  Second, the primary water (that circulates inside the reactor core) is never pumped into the cooling tower (it's the SECONDARY water cycle that goes  through the cooling tower).  Third, liquid uranium would burst into flame on contact with air.  >Contact with the cool outside air >will condense the mist and it will fall back to the cooling tower floor. >There it is collected by a cleaning crew using shop vacs and is then >reformed into pellets for reactor use the next day.  	Cleaning crew working in a mist of uranium?  This is a toxic heavy metal, even if it WEREN'T radioactive.  Shouldn't there be some smileys here?  Or frowneys?
In article <1pqu12$pmu@sunb.ocs.mq.edu.au> johnh@macadam.mpce.mq.edu.au (John Haddy) writes: >In article <C513wI.G5A@athena.cs.uga.edu>, mcovingt@aisun3.ai.uga.edu (Michael Covington) writes: >|> (1) Don't use big capacitors.  They are unreliable for timing due to >|> leakage.   	True (especially for electrolytic capacitors at high temperature).  >|> Instead, use a quartz crystal and divide its frequency by 2 40 times >|> or something like that.  >... Wouldn't a crystal be affected by cold? My gut feeling is that, as a >mechanically resonating device, extreme cold is likely to affect the >compliance (?terminology?) of the quartz, and hence its resonant frequency.  	Low power quartz oscillators are usually 32 kHz (and THESE have significant temperature drifts, which one doesn't often notice while wearing the watch on one's wrist).  Low temperature sensitivity is available in other crystal types, which unfortunately are larger and higher frequency (1 MHz or so) and take more battery power.    	Programmable timers might be less accurate, but they are more power-stingy than suitable crystal oscillators.