waashk/20ng huggingface dataset:
victor@inqmind.bison.mb.ca (Victor Laking) writes:  >You are experiencing what is called Macrovision.  It is the protection  >that they use on the video tapes.  There are two ways around this that I  >know of.  First of all, you can try using a different VCR to copy onto. >It is the input of the VCR that reacts to the protection so sometimes  >just switching the two VCRs around will take care of it.  Some models  >just don't react to it.
Does anyone know where to get a schematic for a micro stepping circuit? Any help would be appreciated. mcole@nmsu.edu
I recently bought an apparantly complete Expansion Chassis by Mountain Computer Inc.  It consists of a box with 8 Apple ][+ compatible slots, powersupply brick, interface card and ribbon cable to attach it to the computer to be expanded.  There was also included a small card with empty sockets on top and pins on the bottom that looks like it would plug into the ][+ motherboard somewhere after pulling a chip.  There's an empty socket also on the interface card and a short 16-pin DIP jumper like the ones used with ][+ language cards.   This technological marvel came with no docs and I haven't a clue as how to hook this thing up.  If anyone has docs and/or users disk of any sort for this I could really use copies of them or at least some help.   I need to know:   o How to orient the ribbon cable between the card and the chassis. o How to attach the short cable from the motherboard to the card   and if the small card is used. o The purposes of the various jumper-pins on the card (it has more   of those than my CMS SCSI card!)
>klp@doe.carleton.ca (Ka Lun Pang) writes: >  > Hi folks, >  > I borrowed a VHS tape from a friend and it has a warning in the begining sayi > that attempts to copy the tape will result in destroying the copy and the > original. I found this unbelievable as playing and recording are two differen > processes. However, I've never seen this tape being sold anywhere so I don't  > want to take the chance even it's small.  	Greetings. There are 3 types of warnings on (US) tapes:  	1) A hologram is glued across the seam of the 2 halves of the 	   tape. The message usually reads, "If seal is broken, you must 	   buy this tape"  	2) The standard "MacroVision" warning, "Copies of this tape will 	   be unviewable"  	3) [your case] Extended message for the Average Consumer (tm) which 	   states that even attempting to copy the tape will destroy the 	   original. I don't believe you can sue them for misinformation 	   in cases like this :-)  	Take care.  	P.S. Of course, #3 is utter BS - but the Average Consumer (tm) 	     believes it. Heck, my mom once returned such a tape without 	     watching it... she was afraid that something might just  	     happen :-)
: Nothing, but if you read my WHOLE suggestion, I'm saying that you register : via MAIL by mailing in your registration card, THEN the company send you : the patch which includes the info you put on the registration card.  The problem with this scheme, is that when I buy a game, I want to play it *THAT* day...mailing a card to and from California would probably take a week or more.
Im designing a circuit with just a silicon diode. I dont need to modify any of the parameters. But the problem will not accept the following statement 		 		.model diode D          The pspice book I have is terrible. I would appreciate any help.
davidj@rahul.net (David Josephson) writes:  >In <C5JJJ2.1tF@cmcl2.nyu.edu> ali@cns.nyu.edu (Alan Macaluso) writes:  >>I'm looking to build a microphone preamp that has very good low-noise characteristics,  large clean gain, and incorportates phantom power (20-48 volts (dc)) for a PZM microphone.  I'm leaning towards a good, low-cost (??) instrumentation amplifier to maintain the balanced input from the microphone, for its good CMRR, internal compensation, and because i can use a minimal # of parts.    >>Does anyone out there have any experience, suggestions, advice, etc...that they'd like to pass on, I'd greatly appreciate it.  >Without doing anything really tricky, the best I've seen is the >Burr-Brown INA103. Their databook shows a good application of this >chip as a phantom power mic pre.  I've had very good results from the SSM2016 from PMI (part of Analogue Devices). They have also now introduced the SSM2017 which looks good on paper, but which I haven't tried yet.  Christopher
Does anybody know if there is a mailing list or newsgroup for Power Systems and related areas?  Thanks,
LLBGB@utxdp.dp.utexas.edu writes: >Initial symptoms: >-no picture or sound >-CRT filament does NOT glow >-flyback ticking as described abovew  >Discovered when hooked up the scope: >-IF strip is not putting out audio or video signals >-everything is making simple 20-30 Hz pulses >-horiz out transistor collector (case of the TO-3) is a 20-30 Hz downgoing >  sawtooth with ca. 15kHz ring at front end  >guys, WHAT"S GOING ON HERE?  Anyone seen this before?  What is happening is this: 1) You turn the TV on. 2) The horizontal output begins normal operation.  This powers up the    high voltage and most of the rest of the circuitry. 3) A problem is sensed and the horizontal oscillator shuts down. 4) After it powers down the cycle repeats.
I think there is a huge difference in the materials and  process for printer/toner PCB's. I get first time, everytime results from a local HP Postscript, and hardly ever works from copies of the same artwork. The printer results are so good that I have quit even looking for PC board processes. If I had to use the copier version, I would think I would look elsewhere. The moral? Experiment and find what works. Toner transfer CAN give excellent results. It, like any process, gives erratic  results with variable inputs.
In article <jam.19.735404158@ameslab.gov>, jam@ameslab.gov (Jerry Musselman) wrote: >  > I need to find a UART that will interface to an 8051 and do the following: > 	-250k baud, 8 data bits, 2 stop bits, no parity > 	-ability to do BREAK detect (IRQ or output pin) > 	-IRQ on character received >  > I'm using a Dallas DS2250 at 16 Mhz (8051 clone), but it won't do  > break detect.  I've looked at the 6850, 8251, 7201, 2661, etc... >  > 	Any help would be appriciated!!!  Actually detecting a BREAK is done by watching for a "character" containing all zero bits with the framing error resulting from its receipt.  This means that the line stayed in the zero bit state even past the stop bit time slot, which basically indicates a BREAK.  There is no special way to detect BREAK that I have found other than this -- there's no magic signal generated by UARTs, etc.
try comp.dcom -  I was reading a thread a while back about an 800 number that you could dial.  worked here.  It was a sales line for sprint I think telling you that you could have all your customers numbers using there ANI, then it told you your number.  Should work with any modern switch.  mycal
I'm looking to build a microphone preamp that has very good low-noise characteristics,  large clean gain, and incorportates phantom power (20-48 volts (dc)) for a PZM microphone.  I'm leaning towards a good, low-cost (??) instrumentation amplifier to maintain the balanced input from the microphone, for its good CMRR, internal compensation, and because i can use a minimal # of parts.    Does anyone out there have any experience, suggestions, advice, etc...that they'd like to pass on, I'd greatly appreciate it.
Having vainly looked for devices capable of dealing to the NEC 77P20 DSP chip which dont require taking out a mortgage, i decided to roll my own. Not a difficult task for an 8751, given that all the timing relationships are set out in the databook. One thing bothers me, that is the accursed 50ms 21 volt Vpp pulse. Sure, a little buck step-up converter can achieve this (in what is otherwise an all 5 volt widget) but i know latterday eproms dont need nearly this pulse length. Q : has anyone come up with a more efficient programming algorithm which is failsafe ? cheers Mike.
Others said: {early PA?} # 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.  An now-deceased prof told us willing students about a project he had worked on during WWII.  They needed a mega-power PA with very clear audio quality. The purpose was to bellow at refugees from aircraft.  Their solution was a giant compressed-air source, and a horn with parallel shutters worked by a small audio system. I think he said it worked very well, thus the War Dept. cancelled the project ;_}.
In <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: >|> 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.   Yes, but in a fairly reproducible way. -40 is only a smidgen of the distance to absolute zero. And in any case you're going to have to borrow freezer space from a bio lab or someone to test/calibrate this darling anyway. Btw, you're probably going to want those big capacitors you found to fire the solenoid -- High current drain on frozen batteries can be an ugly thing.
In article <C5r60r.4ID@megatest.com>, alung@megatest.com (Aaron Lung) writes: > In article <C5qsBF.IEK@ms.uky.edu> billq@ms.uky.edu (Billy Quinn) writes: >>I built a little project using the radio shack 5vdc relays to switch >>audio.  I got pretty bad 'clicks' when the thing switched.  I was doing >>most of the common things one is supposed to do when using relays and >>nothing seemed to get rid of the clicks. >> >> >>My question is: >> >>	Is there a good relay/relay circuit that I can use for switching >>audio, so that there will be *NO* noise of any kind on the audio lines. >> >> >>I will appreciate any advice or references to advice.  Also, exact part >>numbers/company names etc. for the relays will help! >  > Are you switching high level signals or low level signals like pre-amp > out level signals?  Also, are the clicks you mentioning the big > clack that happens when it switches or are you refering to contact > bounce?  How are you driving the relays?  TTL gate output?  Switching > transistor?  How are the relays connected to what you are driving? >  > Need more specifics to answer your question!! :-)  As a general rule, no relay will cleanly switch audio if you try to tranfer the circuit with the contacts.  The noise you hear is due to the momentary opening and closing of the path.  The noiseless way of transfering audio is to ground the circuit.  In high impedance audio circuits a resistive "T" is constructed close to characteristic impedance of the circuit.  Grounding the imputs (connected to the T) transfers the audio.  In low impedance circuits transformers are usually used, and the inputs are shorted out or grounded.  Secondaries are paralleled at the characteristic impedance.  Sometimes if it is necessary to actually switch audio, a second contact is used to momentarily short the circuit output for the duration of the switching time.  Telephone relays are handy, because contacts can be adjusted to "Make before break and Vica Versa" but I haven't seen any of these for years.  Nowadys switching is done electronically with OP amps, etc.  A novel circuit I used to build was a primitive "optical isolator".. It consists of a resistive photocell and a lamp, all packaged in a tube.  When the lamp is off the cell is high resistance.  Turn the lamp on and the resistance lowers passing the audio.  Once again this device in a "T" switches the audio.  Varying the lamp resistance give a remote volume control.  Use 2 variable resisters and you have a mixer!  Lots of luck! --  73, Tom ================================================================================ Tom Wagner, Audio Visual Technician.  Malaspina College Nanaimo British Columbia (604)753-3245, Loc 2230  Fax:755-8742  Callsign:VE7GDA Weapon:.45 Kentucky Rifle Snail mail to:  Site Q4, C2.   RR#4, Nanaimo, British Columbia, Canada, V9R 5X9
I am looking for a source for a 4 circuit Sequence flasher.  Input 24 Volts AC, 8 amps  Output: sequence to 4 channels (knob to vary frequency) (max 2 amps  	per leg) 	Switch to put all channels on full time  Please Email any assistance you can provide.  Randy 			Email:  randy@ve6bc.ampr.ab.ca
Greets,   I have an IC I need help in identifying.  It is an 8-pin IC with the following label:  W03563  9144w4     ANY help would be greatly appreciated in identifying this chip.     Kevin   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Kevin Jones                                   KPJONE01@ULKYVX.CT.LOUISVILLE.EDU Lab Supervisor                                KPJONE01@ULKYVX.LOUISVILLE.EDU Computing and Telecommunications              PHONE:  502-588-6303 University of Louisville, KY                  FAX:    502-588-0150
Does anyone know if a source for the TCM3105 modem chips (as used in the Baycom and my PMP modems)?  Ideally, something that is geared toward  hobbyists:  small quantity, mail order, etc.  For years, we've been buying them from a distributor (Marshall) by the hundreds for PMP kits.  But orders have dropped to the point where we can no longer afford to offer this service.  And all of the distributors I've checked have some crazy minimum order ($100, or so).  I'd like to find a source for those still interested in building PMP kits. Any suggestions?
In article <6208.442.uupcb@ozonehole.com> gerald.belton@ozonehole.com ( Gerald Belton)  writes  >Subject: Need to find out numb >Date: 20 Apr 93 12:18:00 GMT  >AL>There is a number you can call which will return a synthesized >AL>voice telling you the number of the line.  Unfortunately, for the >AL>life of me I can't remember what it is. The telephone technicians >AL>use it all the time.  We used to play around with this in our >AL>dorm rooms since there were multiple phone lines running between >AL>rooms. > >It probably wouldn't help for you to post the number, since it appears >to be different in each area.  For what it's worth, in the New Orleans >area the number is 998-877-6655 (easy to remember, what?) > > > * SLMR 2.1 * Ask me anything: if I don't know, I'll make up something. >                                            Here in our city, dialing either 940-7222 (newer exchanges) or 940-2222222 [ sic] will get a synthesized message. Works great for having people call you  back at unlabeled pay phones.  Regards, Bill
You might want to get a disposible flash camera, shoot the roll of film, then take it apart (they're snapped together). We used a bunch of them at my wedding, but instead of sending the whole camera in, I just took the film out (it's a standard 35mm canister), and kept the batteries (they use one AA battery). Sorry, I didn't keep any of the flash electronics.
sburton@dres.dnd.ca (Stan Burton) writes:.......... > I would like to be able to detect the angular position (low accuracy) of an > IR emitting source at a distance of about 100 meters (more is better) in > daylight.  The IR source could be emitting a signature; I'm leaning toward > 30 KHz square wave with 50% duty cycle. >  I designed and built hardware in 1988 that would output a logic level (from a 567 tone detector) upon detecting a 500 microwatt LED 28 feet away. Used a Motorola MRD360, biased linearly  in a DC-feedback loop to servo out variations in sunlight (and 60Hz from lights). Used no lenses.
In article <1qnroe$d1n@usenet.INS.CWRU.Edu> wb8foz@skybridge.scl.cwru.edu (David Lesher) writes: >An now-deceased prof told us willing students about a project he had >worked on during WWII. > >They needed a mega-power PA with very clear audio quality. The purpose >was to bellow at refugees from aircraft. > >Their solution was a giant compressed-air source, and a horn with >parallel shutters worked by a small audio system. I think he said it >worked very well, thus the War Dept. cancelled the project ;_}.  Gee, I got the idea from somewhere that devices like this were in common use in WWII, so that commanders on board ships could bellow at the troops landing on a beach, for example.  Which reminds me of an anecdote from the mid-60s.  At a communications conference a Marine Corps communications officer said he didn't care much for all the spread-spectrum multi-access expensive communication systems that people were talking about at the time; what he wanted was a kilowatt broadcast transmitter on the ship and a $4.95 Japanese transistor radio stuck in the ear of every Marine hitting the beach. --  haynes@cats.ucsc.edu haynes@cats.bitnet
Brian Day (bday@lambda.msfc.nasa.gov) wrote: : On December 29, 1992, it was illegal to operate a radar detector : in the state of Virginia.  If one got caught, one got fined $65.00. : Ask me how I know.  The Federal Communications Act of 1934 made it *legal* for you to operate a radio receiver of any kind, on any frequency (including X, K, and Ka bands) in the United States.  The Electronic Communications Privacy Act of 1989(?) restricted the FCA of 1934 by making it illegal to receive the land-mobile telephone service, including (I believe) cellular phones.  No restriction was placed on receiving RADAR (or, curiously, cordless phones.)  Enforcement of the Virginia law is in violation of the FCA of 1934.  If you have lots of time and money (and a lawyer, which I'm *not*,) you can argue this in a federal court and try to have the law overturned.  I can hardly wait to see the responses to this one, but somebody had to say it...
In article <1993Apr23.171020.23982@csus.edu> kschang@sfsuvax1.sfsu.edu (Kuo-Sheng (Kasey) Chang) writes:  >In article <rcstage1.128.735548462@urc.tue.nl> rcstage1@urc.tue.nl (Guido Klemans) writes: >>In article <1993Apr22.163605.24784@csus.edu> kschang@sfsuvax1.sfsu.edu (Kuo-Sheng (Kasey) Chang) writes:  >>[byteocide]  >>>What I believe the companies should do is implement the above plus >>>a special patch once the user registers that loudly exclaims upon bootup >>>"REGISTERED TO XXXXX -- address, city, state zip" and disables the above. >>>Two benefits: 1) encourages registration, 2) cuts down on pirating and >>>makes it more traceable, because if the patch's registration message is >>>encrypted, it will be quite hard to change, and therefore provides a >>>stable trail of who allowed their copy out of their hands, and thus >>>violated their license agreement. >>> >>You take two copies with a different registration id, compare them byte for  >>byte and you know where they are located. Usually you will be able to  >>find out what is what after that.   >Probably, but the point is THE COMPANY make the registration patch, NOT >YOU.  Sure, you can probably find another registerred user and compare notes, >but WHY?  It's not hindering you in any way unless you are just hacking. >[Problem about people who cut TOO MUCH from quoting...]  >>And what keeps me form registering as John Doe from the company Public  >>Domain, Yellow Brick Road 1, Tinseltown or something???  >Nothing, but if you read my WHOLE suggestion, I'm saying that you register >via MAIL by mailing in your registration card, THEN the company send you >the patch which includes the info you put on the registration card.  >--Kasey Chang  I'm glad to see this idea come up because I've had something similar in mind. What if you had an authorization key that computed from the name and address  data.  When the user registers, you don't even need to send executable code,  just compute his/her key and send him/her instructions to enter in the  appropriate place the following:  Name=Joe Doe Address=123 Main Street City=Anytown, CA key=ldslfoialsdkcdsngsikhsfd
In article <cantrell.735330560@sauron.msfc.nasa.gov> cantrell@sauron.msfc.nasa.gov (Eric Cantrell) writes: >Awhile back someone posted some information on where you can get >kits to build an EEG.  Does anyone remember where you could get >this.  I'm very interested in getting some info on this.  Thanks  >in advance. > >eric > >cantrell@sauron.msfc.nasa       >  Contact Circuit Cellar Inc., 4 Park St. - Suite 12, Vernon, CT 06066 (203)875-2751, FAX (203)872-2204 and inquire about HAL-4 EEG Biofeedback Brainwave Analyzer.    In addition, if you want to build your own system from board-level compo- nents (biosignal amplifiers, analog isolators and isolated multiplexers) you can contact The Davron Group,P.O. Box 237, Deerfield, IL  60015 FAX (708)948-9290.  - David
In article <1993Apr21.204556.21262@cronkite.ocis.temple.edu> camter28@astro.ocis.temple.edu (Carter Ames) writes: > >   I was just wondering one thing, actually two. ( I hope that this is the >proper place to post this subject) > >  Why does a lead acid battery discharge and become dead (totally unuseable) >when stored on a concrete floor?   >  I decided to bring the battery in from the lawn mower and the motorcycle >from the unheated garage this year, *to preserve them* and I just >went to use them and noticed that not only do they not work, but  >they act like the two terminals are shorted.  I asked a friend >and he said that you should never do that, 'cause it ruins them, >but he couldn't tell me why. >  It's NOT the concrete floor that does it. The problem is that lead-acid cells self discharge over time. Even high quality cells (Gates for instance) will discharge 50-60% over a 3-5 month period of time. Non-sealed cells self discharge even faster. If the battery was not completly charged when left sitting, it probably discharged past the the point where cell sulfiding occurs, which in many cases means a ruined battery.
Does anyone know how can I get detailed information about PALs and GALs. Please reply via e-mail. Thanks a lot in advance.
I want to start a DSP project that can maniplate music in a stereo cassette.  Is that any chip set, development kit and/or compiler that  can equilize/mix music?  Ideally, The system should have D/A A/D converters & a DSP compiler.  A rough estimate of the cost is greately appreciated.  Thanks in advance.
R >>>JD> ALL PC parallel ports that are compatable with the IBM standard, R >>>JD> including the original IBM adaptor, are bi-directional.  NOT ALL PARALLEL PORTS ARE BI-DIRECTIONAL WITHOUT MODIFICATION.  My experience with the standard old zenith parallel port in their  original 286s proves that.  They had the input direction disactiviated by  tieing them R/W select line of the circuit to Vcc.  To make it bi ( which  I did ) I had to modify it by scraping off the trace and solder a jump to  the proper location.  I thought that this was just lazy on the part of  Zenith ( they were not Zenith-Bull Group at that time).  -rdd  ---  . WinQwk 2.0b#0 . Unregistered Evaluation Copy  * KMail 2.95d W-NET HQ, hal9k.ann-arbor.mi.us, +1 313 663 4173 or 3959
Pink Noise and White Noise are equal amounts of all frequencies.  This is in most cases around the 20-3.3K Hz range.  Pink/White are used to adjust for room dynamics and stuff like that.  There are a few EQ's out on the market that have Pink noise built in.  Most all from Audio Control have them I know the C-101 does.