HDTenEightyP/NetNews huggingface dataset:
From: johnh@macadam.mpce.mq.edu.au (John Haddy)
Subject: Re: 'DreamLight' wanted!
Organization: Macquarie University, Sydney
Date: Mon, 16 Nov 1992 22:41:05 GMT

In article <1992Nov16.111944.4390@kth.se>, e92_anh@vaxkab.lne.kth.se () writes:
|> On Sunday 15 November 1992, I was watching 'Beyond 2000' on Discovery
|> channel. One of the wonders they were showing this time was an apparatus
|> to -while you're sleeping- detect your REM's and then tell you that you
|> are dreaming (by flashing lights in front of your eyes for a while).
|> 'DreamLight' I think it was called.
|> 
|> The idea is that you ACTUALLY CAN PERCIEVE THIS while sleeping and thus
|> get aware of the fact that what you are experiencing is, in fact, a
|> dream! Well, hey! This sounds cool, does it not?
|> 
|> Now, the reporter said that this device is something that anyone can buy
|> and use. The problem is that 'Beyond 2000' is an American program (I
|> think) and I live in Sweden. And as this 'DreamLight' has not yet found
|> its way to Sweden, I'd be very happy if someone could tell me WHERE I
|> CAN ORDER such a thing...
|> 
"Beyond 2000" is actually an Australian program, although sometimes we cringe
to have to admit it. One of the big problems with the program is when thay say a
product is available over-the-counter (so to speak), they often mean only
within the country where that story originated.

Another main problem is that they've become, over the years, more of an
advertising bureau for commercial products, and less of what they started as - a
program to introduce the state-of-the-art to the layman.

Finally, they seem to occasionally produce stories without a lot of technical
or scientific back-up. It sounds as if your device might fall into this category
- where a manufacturer makes "claims" which are dutifully reported by the
program, yet a marked absence of documented research is observed.

JohnH

----------------------------------------------------------------------------

      |  _  |_   _   |_|  _   _|  _|              Electronics Department
    |_| (_) | | | |  | | (_| (_| (_| \/           School of MPCE
    ---------------------------------/-           Macquarie University
                                                  Sydney, AUSTRALIA 2109

    Email: johnh@mpce.mq.edu.au, Ph: +61 2 805 8959, Fax: +61 2 805 8983

----------------------------------------------------------------------------
Newsgroups: sci.electronics,rec.audio.car,alt.locksmithing
From: jreiser@scott.skidmore.edu (Jason Reiser... Asleep)
Subject: Re: Gemini 4002/4003 car alarm
Organization: Skidmore College, Saratoga Springs NY
Date: Sat, 21 Nov 1992 10:41:52 GMT

hb@imsor.dth.dk (Henrik Bechmann) writes:
> I have one of those fitted in my car, and the users manual states that
> it is possible to switch between voltage sensing mode and no voltage
> sensing mode by setting a switch. I don't want it to be voltage
> sensing, but the alarm reacts on voltage changes in both modes :-( 
> 
> Does anybody out there have any suggestions to solve the problem
> (without a separate battery for the alarm), or does anybody have acces
> to a Service Manual or an electronics diagram of the thing?
> 
> Any help will be very much apreciated.
> 
> Henrik.
> --
> -----------------------
> ! Henrik Bechmann     !
> ! hb@vip.imsor.dth.dk !
> -----------------------

Not being familiar with this particular alarm, I cannot say how to
turn off current sensing... contact the manufacterer or a
retailer/installer for that.  But, if nothing else, you will probably
find that if you relocate the current sensing wire to the + terminal
of the battery instead of the fuse box (common spot), the current
sensing will be desensitized quite a bit... though this varys greatly
from vehicle to vehicle.

				- Jason
-- 
---------------------------------------------------------------
\ Jason A. Reiser  \ Send E-Mail to jreiser@scott.skidmore.edu \
 \ Skidmore College \ Saratoga Springs, NY 12866 \ 518-581-6580 \  
  \ It's a new Ice Age!  Hooray!!  Sled City!  - Calvin & Hobbes \
Newsgroups: sci.electronics
From: kilian@cray.com (Alan Kilian)
Subject: Re: LCD pinouts
Organization: Cray Research, Inc.
Date: 17 Nov 92 14:12:51 CST


The Hitachi LCDs I use have this pinout:

14 O  O 13
    ..
    ..
 2 O  O  1

                              -Alan Kilian
-- 
 -Alan Kilian           kilian@cray.com 612.683.5499 (Work) 612.721.3990 (Home)
  Cray Research, Inc.   655 F Lone Oak Drive, Eagan  MN, 55121 
                        "It's based on actual math". -Dilbert
Newsgroups: sci.electronics
From: dougs@david.wheaton.edu (Doug Smith - SGA)
Subject: Re: Sony TR series remote control jack
Keywords: camcorder, remote
Organization: Wheaton College
Date: Tue, 17 Nov 1992 16:54:52 GMT

In article <1992Nov16.205905.13891@kakwa.ucs.ualberta.ca> martin@space.ualberta.ca (Martin Connors) writes:

>b) does anybody know how the from control jack on the TR series is wired.  
>If it is a simple continuity system I could make a little circuit to do  
>what I need, but I am afraid to experiment with my costly camera....

The control jack is what they call "control-L".  I ordered the technical
manual from Sony and it seems to be a serial port of some kind.  I
haven't been able to build a proper cable to hook this to my computer
because the manual is a little vague.  Does someone out there know how
to do this?

Maybe you could hack a circuit on to the remote control to "push" the
buttons for you.  That way if you destroyed something it would be the
relatively cheap remote and not your whole camcorder.

dougs@sga.uucp
...wheaton.wheaton.edu!sga!dougs

Newsgroups: sci.electronics
From: jhwhit01@ulkyvx.louisville.edu
Subject: Re: Is lead solder bad for me?
Date: Thu, 19 Nov 1992 05:38:11 GMT
Organization: University of Louisville

In article <1992Nov18.230153.5536@u.washington.edu>, whit@carson.u.washington.edu (John Whitmore) writes:
> 	Tin is not toxic.  Tin cans for food, tin salts in toothpaste,
> and tin in approved solder for potable water (and food handling
> machinery) have been accepted for years, and there is NO indication
> that this has been an error.
  
To quote "McGraw-Hill Encylopedia of Science & Technology," 5th ed, p734:
  
"Tin metal and the simple inorganic salts of tin are nontoxic.  Tests have
shown that concentrations of tin well above allowed limits in canned goods can
be consumed without obvious adverse effects on the human system.  Some forms of
organotin compounds, on the other hand, are toxic."
 
There are compounds of tin with biocidal properties, but that is beside the
point.  Exposure to tin from soldering is not dangerous.  I am not concerned
about exposure to lead from soldering either.
 
Jeff White
From: schaefer@koh-sun1.usc.edu (Peter Schaefer)
Newsgroups: sci.electronics
Subject: Re: Voltage regulator
Date: 22 Nov 1992 20:12:03 -0800
Organization: University of Southern California, Los Angeles, CA
Distribution: world
NNTP-Posting-Host: koh-sun1.usc.edu


In article <By402w.7uE@ux1.cso.uiuc.edu>, tron@ux1.cso.uiuc.edu (Tron R.) writes:
|> I have posted a note earlier about converting a 9V dc source to 12V dc. It
|> turns out that I need to go from 9v to a stable output in the 7.5v to 8v
|> range. I am thinking about using using a voltage regulator ic. Does anyone
|> know of any Volt Reg. that will handle such a small input/output
|> differential?
|> 
|> Or is using a volt. reg. a bad idea for what I'm trying to do?
|> 
|> Thanks in advance.
|> Tron
|> 
|> P.S. I want to thank all the people that responded to my first posting. It
|> means a lot to a beginner like me.
Try a zener diode and a resistor and capacitor or two.
From: myers@hpfcso.FC.HP.COM (Bob Myers)
Date: Thu, 19 Nov 1992 19:27:41 GMT
Subject: Re: Japanese AC line voltage
Organization: Hewlett-Packard, Fort Collins, CO, USA
Newsgroups: sci.electronics


The Japanese standard is 100 VAC, with half the country at 50 Hz and
half on 60 Hz.  Equipment designed for 87-134 VAC/47-63 Hz should work just
fine.



Bob Myers  KC0EW   Hewlett-Packard Co.      |Opinions expressed here are not
                   User Interface Tech. Div.|those of my employer or any other
myers@fc.hp.com    Fort Collins, Colorado   |sentient life-form on this planet.
Newsgroups: sci.electronics
From: kacmar@cns.ucalgary.ca (Boris Kacmar)
Subject: Dictionary of the telecommunication terms?
Date: Fri, 20 Nov 92 20:35:28 GMT
Organization: Dept. Clinical Neurosciences, U of Calgary, Alberta, Canada

Hi there,

Sorry to bug you with this, for someone perhaps trivial question. I am
looking for a dictionary or some encyclopedia in telecommunication field 
for my friend living in Czechoslovakia. Preferably it should be somethimg
like the Webster distionary with adequate explanation of the terms. I have
seen very similar book written for computer users. Should you have some 
knowledge about the titles and/or authors (publishers), please e-mail me.
Any lead will be welcomed and appreciated. Thank you.

Regards, Boris

E-mail: kacmar@cns.ucalgary.ca
Newsgroups: sci.electronics
From: toddi@mav.com (Todd Inch)
Subject: Re: Teeny-weeny Sony power connector?
Organization: Maverick International Inc.
Distribution: usa
Date: Wed, 18 Nov 92 22:58:17 GMT

In article <1992Nov13.143003.26580@keinstr.uucp> chaplin@keinstr.uucp (Roger Chaplin) writes:

>  ------------
>  |          |
>  |   AC     |                     ______         _____             _______
>  | Adaptor  |---------------------|    |       --|   |-------------|     |
>  |          |                     ------         -----             -------
>  |          |                      1/8"           1/8"             original
>  ------------                     stereo         stereo           AC Adaptor
>                                   in-line         plug               plug
>                                    jack

>The reason I chose a 3-conductor (stereo) rather than a 2-conductor
>(mono) connector is that for some stereos, the `ring' of the connector,
>rather than the `tip', is the positive voltage connection.  All of the
>2-conductor plugs I've seen have exposed metal which is connected to
>the ring.  I didn't want any chance of shorting that conductor to the
>grounded metal of the car's gear shift, etc.

Looks like a great idea.  But, since the 1/8" plug/jack is of arbitrary
polarity, you could have made it always have a negative (or whatever your
car frame ground is) ring and a positive tip in all cases - the tip of
the 1/8" doesn't necessarily need to be the same polarity as the tip of
the original plug.

There are "universal" AC adapters on the market which have a four-way
connectors on them that looks like    |     and sometimes has a 9V
                       ___          --O--
                     =|   |__________/|
                      |___|
battery clip dangling as well.  These often have switchable voltages
and polarities.  I THINK I may have seen the molded + plug/cord or
an interchangeable-tip cord/plug without the actual power supply at
Radio Shack.

I do essentially the same thing as your 1/8" universal converter except
I use a 1/4" mono plug/jack since (1) I can get more current through it
to operate spotlights, compressors, etc, (2) It is more heavy-duty, less
likely to break, especially if you buy studio-grade plugs/jacks, and (3)
of course, at the time I had large quanitites of plugs which were donated
to my high school and jacks which were donated to my college.  The other
big advantage is that you can buy off-the-shelf Y-splitters, extension
cables, etc if you don't have time to make your own before that big road
trip.
Newsgroups: sci.electronics
From: peter@wiesel.cosy.sbg.ac.at (Peter Burgstaller)
Subject: Wanted: Generator/Transformator description
Organization: University of Salzburg / Austria
Date: Wed, 18 Nov 1992 11:11:06 GMT

Hi folks!
I'm posting this for a friend (he doesn't have the possibility to post).

He got a Generator from a 2nd hand store and would need the Description
of the circuit-board and all components. The Generator is fully functioal
but the Transformer!
So if you only have details about the transformer, this would be GREAT  
too!
Here are the details:
GENERATOR, SWEEP (HF 15 - 400 MHz)
SG - 24 / TRM -3
115V 10 50 - 1000 ~ 3 WIRE
PT Nr. K 95400410 Serie: Nr. 169
A UNIT OF TEST SET, RADIO AN/TRM - 3
MANUFACTURED FOR DEPT OF THE NAVY BUREAU 
OF AERONAUTICS BY CONTRACTOR 
LAVOIE LABORATORIES INC.
MORGANVILLE NEW JERSEY

Transformator:
TF 2 A03 YY
P38500102
ORTO FILTER CORP.
PATERSON N. J.
9740 A

What I need is connections, pins, ...

- Thanks to you all, Peter


--
/-------------------------------------------------------------------\
| Peter Burgstaller| Student of Computerscience			    |
| (peter@cosy.sbg.ac.at)| in Salzburg, Austria (Europe)		    |
| "So Long, and Thanks for All the Fish" (Douglas Adams)	    |
\-------------------------------------------------------------------/
From: cstadbg@csv.warwick.ac.uk (Mr M J Brown)
Newsgroups: sci.electronics
Subject: Re: making mono from stereo
Date: 18 Nov 1992 13:25:04 -0000
Organization: Computing Services, University of Warwick, UK
Distribution: world
NNTP-Posting-Host: clover.csv.warwick.ac.uk

In article <92322.094702GNR100@psuvm.psu.edu> <GNR100@psuvm.psu.edu> writes:
>         Just wondering......is there any way to go the other way?
>
>  I know that there is no way to tell which channel a part of the waveform cam
>from,  but is there some way to create "artificial" stereo, say, by having a
>computer divide the signal up into two channels so is sounds halfway decent?
>                     Gordon Rogers
>                     gnr100@psuvm.psu.edu


Artifical stereo can be created by (a) ... Putting the original mono to one
ear and putting a delayed signal to the other (gives it space...but not too
convincing) .. a varying delay is better, but can lead to phasing/pitchbend
problems .... or (b) use a 10 band STEREO graphic eq ... run the mono into 
both inputs, and then set all the LEFT controls UP DOWN UP DOWN  etc, and
the right controls oppositely ... DOWN UP DOWN UP .... This works to some
degree too. ....
=============================================================================  
     _/      _/   _/   _/  _/   _/_/_/_/   |
    _/_/  _/_/   _/   _/_/     _/          |         Michael Brown
   _/  _/  _/   _/   _/       _/_/         |
  _/      _/   _/   _/_/     _/            |   cstadbg@csv.warwick.ac.uk
 _/      _/   _/   _/  _/   _/_/_/_/  _/   |
=============================================================================
From: c665112s@edinboro.edu
Newsgroups: sci.electronics
Subject: Computer Projection Panel- For Sale!
Date: 17 Nov 92 03:13:50 GMT
Organization: Edinboro University of Pennsylvania

Hi everyone,

I have a computer projection panel (PLATE) for sale.  It is practically brand
new - purchased about a year ago.  It is a Sharp model.  For those of you not 
familiar with one, you hook it up to your computer in place of your monitor
and you are able to project the image onto a big screen.  Very nice for games
and Windows applications.  I'm asking 500.00 (paid 950.00) but will take best
offer.
		Write to Chris
		c665112s.@edinboro.edu
From: esuus@csv.warwick.ac.uk (Mr N Burrows)
Newsgroups: sci.electronics
Subject: Intel 82072 disk controller
Date: 15 Nov 1992 22:00:28 -0000
Organization: Computing Services, University of Warwick, UK
NNTP-Posting-Host: comfrey.csv.warwick.ac.uk


Has anyone got any info on the Intel 82072 disk controller.
Is it the same as the old 8272?

Thanks

Nigel

Email:   nb@dcs.warwick.ac.uk or
      esuus@csv.warwick.ac.uk
From: myers@hpfcso.FC.HP.COM (Bob Myers)
Date: Tue, 17 Nov 1992 21:02:16 GMT
Subject: Re: Circuit to vertically crop NTSC video (letterbox)
Organization: Hewlett-Packard, Fort Collins, CO, USA
Newsgroups: sci.electronics


Set up a counter which counts the horizontal sync pulses; zero it every
vertical sync pulse.  (If you need to separate these, consult any good
book on basic video circuits, or get the National databook - not sure of
the name - which has their video chips.)  You'll need to have at least a
9-bit counter, as there are 262.5 lines in a single NTSC field.

Now, all you need is a circuit which "watches" the output of this counter,
and holds the video (luminance signal) at the black (or blank, your pick)
level for certain intervals; for example, to "letterbox" the video, you
might want to hold the luminance at black between, say, lines 0 and 50
and lines 212-262.  You could do this with sets of 8-bit comparators (such
as the 74LS688) setting and clearing latches which controlled the "black
level" circuit.  Programming which lines get blanked could be done via
DIP switches connected to one set of the compartors' inputs.


This is a bit sketchy, but I think you should get the idea.  Holding the
output at black or blank can be done by clamping the sync tips to a known
level, then clipping the video at the desired limit.


Bob Myers  KC0EW   Hewlett-Packard Co.      |Opinions expressed here are not
                   User Interface Tech. Div.|those of my employer or any other
myers@fc.hp.com    Fort Collins, Colorado   |sentient life-form on this planet.
From: duncan@ravel.ati.com (Jim Duncan)
Newsgroups: sci.electronics
Subject: Re: Cable TV Tech Question
Date: 15 Nov 92 17:14:31 GMT
Reply-To: duncan@ravel.ati.com (Jim Duncan)
Organization: KUFX 94.5 FM Stereo, San Jose, CA 'The Fox'

In article <lfti4mINNlfu@jethro.Corp.Sun.COM> acm@Sun.COM (Andrew MacRae) writes:
>Everything is fine *except* that I don't get any thing on channels above 13.  I
>checked the amp and it is supposed to amplify VHF, UHF, and FM. 

CATV channels and off-air channels operate on different carrier
frequencies above channel 13.  So you need to buy an amp made
specifically for cable TV.

Typically, a CATV amp functions continuously from 50 -550 mHz. while the
off-air unit you apparently bought works over discontinuous bands: 50 -
108, 170 - 213, and 470 - 800 mHz.  If your cable company provides lots
of channels, you'll find that your off-air amp stops working at channel
13 and then starts up again around cable channel 60.   

-- 
KUFX |      w  ["]                            | WA6MBV     
94.5 |...   |___|_____..duncan@ravel.ati.com  | Jim Duncan  
FM   |          H                             | ----------   
********  \_____I_____/  37 3 10N/121 59 10W  **************
From: dhi00@ccc.amdahl.com (mofo )
Newsgroups: sci.electronics
Subject: lcd question
Date: 23 Nov 92 22:01:44 GMT
Reply-To: dhi00@juts.ccc.amdahl.com (mofo )
Distribution: na
Organization: Amdahl Corporation, Sunnyvale CA

anyone know what chemicals or elements are used in LCD displays?  also,
are these fluids toxic, say if someone shot a hole through your portable pc,
would lcd liquid gasify and choke the life out of nearby living organisms?
unrelated request here, but where would i get a jar of this stuff short 
of shooting 1000 pc's?

d
From: chenh@neptune.ecs.csus.edu (H. Philip Chen)
Newsgroups: sci.electronics
Subject: Re: CD4514 4-16 decoder
Date: 21 Nov 92 02:47:40 GMT
Organization: California State University, Sacramento

rky57514@uxa.cso.uiuc.edu (Tall Cool One ) writes:
: Does anyone know about the CD4515 4-bit latched/4-16 line decoder?  I have one
: connected to a 4-bit binary counter.  The idea is a sequencer or chaser light.
: Problem is that the LEDs light correctly sometimes, and other times, not at
: all.  I have the data sheets, and it doesn't tell me anything useful.  I just
: want to use th 4514 as a decoder.  I really don't need the latch part of it..
: Any suggestions would be greatly appreciated!  Thanks!

Well, I don't claim to know the CD4514/5 that well, but since you 
have the datasheets handy, check the max output current of each pin.
(I suspect it's not high enough to drive each the LEDs and if so,
you'll need to add some line drivers in there.)  Good luck.


-phil
From: ah335@cleveland.Freenet.Edu (Richard Banks)
Newsgroups: sci.electronics
Subject: Dynamic range processor ICs
Date: 17 Nov 1992 20:35:43 GMT
Organization: Case Western Reserve University, Cleveland, OH (USA)
Reply-To: ah335@cleveland.Freenet.Edu (Richard Banks)
NNTP-Posting-Host: slc10.ins.cwru.edu


I'm building a audio compressor and I need to know a little bit about
ranage processors.  Like how they work, standard pinout, cost, and
anything that would be helpful.

Thanks.
Newsgroups: sci.electronics
From: dbushong@wang.com (Dave Bushong)
Subject: Re: Anti-shoplifting devices and magnetic media
Organization: Wang Labs, Lowell MA, USA
Date: Wed, 18 Nov 1992 04:01:32 GMT

bdenckla@husc10.harvard.edu (Benjamin Denckla) writes:

>This morning I walked in and out of a number of shops with
>anti-shoplifting detectors similar to the security devices they have in
>libraries, i.e. two vertical inverted U-shaped bars on either side of the
>exit.  Then I found that the disk I had been carrying had some errors on
>it which were not there beforehand.  I assume that this is some kind of a
>detector for non-demagnetized, i.e. not bought merchandise.  I have heard
>that the demagnetizing pads on the check out-counter will erase credit
>cards so I try to stay away from them.  But can anyone tell me if my disk
>could have been damaged by the detectors?  Also, how far away should I
>keep magnetic media like disks, credit cards, and DAT's from the
>demagnetizing check out counter pad?  is a foot enough?  If anyone could
>help I would really appreciate this as this is a very scary situation,
>especially without information as to exactly how scared I should be.

>Ben Denckla

Take your tour again, but this time with a pocket compass.  If it
doesn't violently react to the devices, the diskette is probably
safe.  By the way, the reaction I was talking about is one which,
if the compass could talk, it would say boinnnnggggggg!  Normally
the disk would have to be close to the magnet to affect it; or the
magnet would have to be strong enough where you would feel the pull
on your car keys in your pocket.

Dave
-- 
Dave Bushong, Wang Laboratories, Inc.   Amateur Radio Callsign KZ1O
Project Leader, OCR products            kz1o@n0ary.#noca.ca.na
Internet: dbushong@wang.com
Newsgroups: sci.electronics
From: henry@zoo.toronto.edu (Henry Spencer)
Subject: Re: imaging system
Date: Sat, 21 Nov 1992 22:54:04 GMT
Organization: U of Toronto Zoology

In article <8685@lee.SEAS.UCLA.EDU> annette@boole.seas.ucla.edu (Annette K. Nasif) writes:
>... I would like
>to have a videocamera, but the people working on telemetry say that it would
>be too difficult to transmit back that much information.  I therefore need
>to find some sort of camera, the lighter and smaller the better, that can
>take a series of snap shots (at least 8 bit resolution) which can then
>be transmitted and received on the ground...

Ask around the local ham-radio community for people doing slow-scan TV work
(the abbreviation is SSTV).

Bear in mind that there's no magic way of cutting down the amount of data
in an image.  Even at not-particularly-high resolution, say 300x300, you
are still talking about transmitting hundreds of thousands of bits per image.
Even if you spend several seconds transmitting each image, that's still a
fairly high data rate as radio transmission goes.  Just how much data *can*
your telemetry people handle?  If they can't give you at least 100Kb/s or
so, I think you're out of luck.

You might also want to check the Frequently-Asked-Questions list in
rec.models.rockets; people have done this kind of thing before.
-- 
MS-DOS is the OS/360 of the 1980s.      | Henry Spencer @ U of Toronto Zoology
              -Hal W. Hardenbergh (1985)|  henry@zoo.toronto.edu  utzoo!henry
Xref: sparky sci.electronics:19214 rec.photo:20131