HDTenEightyP/NetNews huggingface dataset:
From: rajiv@hilltop.mitre.org (Rajiv Kohli)
Subject: Replacing LCD for a Temperature sensor
Organization: The MITRE Corporation, Bedford, MA
Date: Tue, 28 Jul 1992 14:14:33 GMT

I am not an electronics engineer but do play around with gadgets

I have a temperature sensor from SEARS with LCD display. It gives
the inside outside temperature. 

Q:	The LCD display is large and I was trying to see if a
	small size one is available from the market and if anyone can
	suggest replacing methodology. I wouldn't mind a LED display,
	infact, would prefer it. I am trying to fit it in a small
	box in the dash board so it merges into the standard
	setting of the car.

	Can somebody  suggest to a novice the method to replace
	this! The range is "0" to "130.9" F. So the display has
	the following LCD's
		   _   _     _
		| |_| |_|   |_|
		| |_| |_| . |_| F
			  ^     ^
			  |	|----- is painted as a F
			  |
			  |
			  |----------- is Painted as a DOT

	?) Would I get incorrect results if I extend the wire
	another 10 ft as I need to hide it under the carpet too.

	?) What would be the best place for the outside sensor
	to be placed at so as to get the best results - Ambient
	temperature. What is in the sensor? A temperature
	sensitive resistance? What kind is generally used? Can I
	buy it from Radio Shack? What is it called. Would
	placing 4 or 5 of them in series or paralled give better
	results. Which?

	thanks in advance
---------------------------------------------------------------------------
Rajiv Kohli		Email: rajiv@mbunix.mitre.org Tel: (617) 271-3506
Mitre Corporation 	Intelligence System Integration and Support
202 Burlington Road 	Bedford, MA-01730 Mail Stop: K 306
---------------------------------------------------------------------------
 @                               _                                  ,,       
 \\   _   @'                    ( )_                       .      _  \\     
  \\_( )_//                    / Y |                   .      /--( )_//     
    | Y/--                    /\   /               .        '//  \~ \       
    |_/       _ / o"         ( _\ /            .                   - \      
  _ //\      | | |    .       \_\\\        .                     //  \\--,  
 /_// /      | | |      .    / \ \\\ .                           \\         
/ // /_______|_|_|__________/_/_\ \_______________________________\\_______
-------------------------------------------- Play Cricket -----------------
Newsgroups: sci.electronics,sci.materials,sci.physics,sci.engr.chem
From: gsulliva@enuxha.eas.asu.edu (Glenn A Sullivan)
Subject: Re: magnetic insulators and shape-memory alloys (was Re: PZT Excitation)
Followup-To: sci.electronics
Summary: Some hints on MAGNETIC shielding
Organization: Arizona State University
Distribution: na
Date: Tue, 28 Jul 1992 03:44:38 GMT

> mece1xg@menudo.uh.edu (purna) writes:
>> rhsomer@PacBell.COM (Bob Somers) writes:
> > Is there any material that acts as an insulator
> >from magnetic forces?  I was told some time ago
> >that there is none, but perhaps some new material
> >will do this.
> >	Bob Somers, Pacific Bell, 510-823-9010

Try LAYERS of steel, with significant AIR GAPS between each of the steel
sheets. And have the layers closest to the source of magnetic flux be the
thickest. This encourages the flux to remain within the steel, with little
flux bothering to go thru the air to the next sheet; if you let the steel
SATURATE, there is little benefit, so you need thick steel to confine the
flux without saturating. What little flux does loop out, eventually hits
the next layer. SInce the flux density is much weaker, you need thinner
sheets to confine the flux. And the various AIR GAPS are obviously
needed to encourage flux to move inside the sheets.

Wonder if Faraday would have described it thusly?

Allen Sullivan    gsulliva@enuxha.eas.asu.edu



From: myers@hpfcso.FC.HP.COM (Bob Myers)
Date: Mon, 27 Jul 1992 17:44:31 GMT
Subject: Re: HDTV
Organization: Hewlett-Packard, Fort Collins, CO, USA
Newsgroups: sci.electronics


No, the FCC has not yet picked a standard.  The date when one will be picked
varies depending on who you talk to, but I believe that the "official"
response is sometime in mid-1993.

What IS known so far - at least until Uncle Charlie changes his collective
mind - is that the standard will be require to "peacefully co-exist" with
current NTSC broadcasters during some transition period, and that it will
be required to use the current 6 MHz-wide TV channels.  This means that
whatever standard is chosen will be some form of digitally-encoded and
rather highly-compressed system.  There are at least four contenders so far,
but each has certain drawbacks (non-square pixels, interlaced scan, and 
refresh rates no higher than 60 Hz, in various combinations among the four).

I have been at least peripherally involved via some participation in a
SMPTE digital image standards committee, and from what I see there, the "final
answer" is as yet far from clear.


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: downin@oasys.dt.navy.mil (Dave Downin)
Newsgroups: sci.electronics
Subject: CD ROM reference?
Date: 24 Jul 92 11:49:05 GMT
Reply-To: downin@oasys.dt.navy.mil (Dave Downin)
Organization: Carderock Division, NSWC, Bethesda, MD

I was just wondering if there was any kind of reference manual on CD
ROM for electronic components.  Basically something that would let me
look up chip #'s and transistor #'s and tell me what they are.  Maybe
even give a stats sheet or pinout on the component.

Any information would be greatly appreciated!

-Dave Downin
From: pjh@mccc.edu (P. J. Holsberg)
Newsgroups: sci.electronics
Subject: Electronics CAD For MACs
Date: 29 Jul 92 16:26:00 GMT
Organization: The College on the Other Side of U. S. 1

Someone had asked about this a week or two ago and I just found my notes
on it.

Galaxy CAD does digital design on 680x0 platforms. Contact
beetem@oceanus.mitre.org or Creative Consulting, Madison, WI
608-233-6309 for more info.

It's available via anonymous ftp (passwd" guest) from 128.104.38.25 in
/pub/galaxy.


Pete
From: esrbt@warwick.ac.uk (Dr B Khamsehpour)
Newsgroups: sci.electronics
Subject: 8085 code --> 80286 code Conversion
Date: 21 Jul 92 18:12:09 GMT
Distribution: sci.electronics
Organization: Computing Services, Warwick University, UK

Hello world,

I would like to translate 8085 assembly code [written for ASM85 Assembler]

to 80286 or 80386 assembly code.

I am looking for an efficient way of doing this, perhaps an automatic
translation.

I will be grateful, for any suggestions. You can mail me at the following
address and I will post a summary of all suggestions (if any) to the net.
Or if you prefer, post it directly to the net.

Email address:  es059@uk.ac.warwick


I am new to this news group. I hope it is the right place for such a
question.



Babak
From es059@eng.warwick.ac.uk Tue Jul 21 16:17:38 1992
Received: from eagle.eng.warwick.ac.uk by clover.csv.warwick.ac.uk with SMTP;
	Tue, 21 Jul 1992 16:17:37 +0100
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From: es059@eng.warwick.ac.uk
Date: Tue, 21 Jul 92 16:18:36 BST
Message-Id: <332.9207211518@eng.warwick.ac.uk>
To: esrbt@csv.warwick.ac.uk
Status: R



I would like to translate 8085 assembly code [written for ASM85 Assembler]

to 80286 or 80386 assembly code.

I am looking for an efficient way of doing this, perhaps an automatic
translation (if there is a way).

I will be grateful, for any suggestions.

I do not have direct access to the net. I am using my friend's account in
order to post this article. Therefore, I will be grateful if you could
send your replies to the following address.

Email address:  es059@uk.ac.warwick.eng

I will post a summary of all suggestions (if any) to the net.


frank
Xref: sparky sci.electronics:13715 rec.audio:11086
From: jrm@gnv.ifas.ufl.edu
Newsgroups: sci.electronics,rec.audio
Subject: Re: CDs, Pens and Blue Lasers.
Date: 31 Jul 92 04:49:54 GMT

In article <11477@optilink.UUCP>, manley@optilink.UUCP (Dave Manley) writes:
> +--------------------------------------------------------------+
> + The SONIC CLARITY(tm)  CORP., LTD. supports a drug-free      +
> + workplace and requires that all offers of employment         +
> + be contingent on satisfactory pre-employment drug test       +
> + results.                                                     +
> +--------------------------------------------------------------+

	Well, you won't get rich on MY dollars. I cannot support
	any company that has caved-in to the current anti-drug
	propaganda to the extent of violating the civil-rights
	and common dignity of its employees with substance
	tests. 40-odd years ago, it would have been loyalty-oaths,
	or proof of non-Jewishness, non-Blackness or anti-communism.
	Same evil, different name. 

	Just my humble perspective on creeping fascism ...

	-- Jim Mason
From: CCEB001@UTXVM.CC.UTEXAS.EDU
Newsgroups: sci.electronics
Subject: Re: uv watch
Date: 30 Jul 92 16:55:24 GMT
Organization: The University of Texas at Austin

In article <1992Jul24.180929.20034@midway.uchicago.edu>,
betsy@rainbow.uchicago.edu (Betsy Weatherhead) writes:
>
>I'm sure I'm not crazy.  About four or five years ago I saw a
>watch for sale that measured uv radiation--or so it claimed.
>I told some friends in the field this and was told I was
>crazy.  Does anyone know anything about this watch?  Does
>anyone have one?  Who is the manufacturer?  Are they still
>available?
>
The Amature Scientist column in Scientific American had a project to
measure UV radiation not too long ago.  Once you got a calibrated sensor
and the light filter combination, the rest looked pretty easy.  They
had a source for the sensor and filter.
 
As I recall, it was a selenium solar cell and a filter similar to those
used in photography.  (but useless for photography)  The cell is much
more sensitive to blue than to UV so a fairly high performance filter
was necessary to keep blue light leakage from swamping the UV.
 
Mike.Coyne@utxvm.cc.utexas.edu
 
 
 
 
 
 
 
 
 
Newsgroups: sci.electronics
From: 13r43@math.ucrf.edu
Subject: Re: Radar Detectors, and Radar Detector Detectors and TVs
Organization: McGill University
Date: Mon, 27 Jul 1992 16:16:10 GMT

In article <1992Jul27.081128.32@apricot.co.uk> marcusj@apricot.co.uk (Marcus  
Jenkins) writes:
> 
> >What are the penalties for operating a TV without a license?
> 
> 400 pounds ($700 US ish), and, I believe, a criminal record.

When I lived there, (in Coventry, 90miles norh of London) they also used to  
print the names of people so convicted in the local newspaper, partly as a  
warning to other people.

I seem to recall that the detector vans were readily identifiable as such, and  
I guess this was in part to scare people who saw them on the street into buying  
a licence.
From: m0102@tnc.UUCP (FRANK NEY)
Newsgroups: sci.electronics
Subject: Re: Radar detectors
Date: 30 Jul 92 11:48:24 GMT
Reply-To: m0102@tnc.UUCP (FRANK NEY)
Organization: The Next Challenge, Fairfax, Va.


Also, about fifteen years ago, some CalTech students with nothing
better to do designed a device that attached to a car radio antenna. 
This device was a rotating corner reflector, driven by the motion of
the vehicle against the surrounding air.  The net result was, the
faster you drove, the slower the radar gun showed you were traveling.

The downside was, all things being equal, this only worked in one 
direction, with the opposite effect from the opposite direction, so a
trooper who didn't believe the radar gun and tried it again on your
now receding vehicle -- oh, brother!

Frank Ney N4ZHG EMT-P  LPVa NRA ILA GOA CCRTKBA "M-O-U-S-E"
Commandant and Acting President, Northern Virginia Free Militia
Send e-mail for an application and more information
----------------------------------------------------------------
"Whether the authorities be invaders or merely local tyrants, the 
effect of such [gun] laws is to place the individual at the mercy of 
the state, unable to resist."
       - Robert Heinlein, in a 1949 letter concerning "Red Planet"
-- 
The Next Challenge - Public Access Unix in Northern Va. - Washington D.C.
703-803-0391 To log in for trial and account info.
Newsgroups: sci.electronics
From: rainer@spot.Colorado.EDU (Rainer Malzbender)
Subject: Re: 20 Bit Counter?
Organization: University of Colorado, Boulder
Date: Thu, 23 Jul 1992 20:54:17 GMT

In article <ERIC.92Jul22201943@iceland.telebit.com> eric@telebit.com (Eric Smith) writes:
>If you aren't familiar with logic design and/or the use of 74xx parts, you
>way want to obtain a copy of  _The_TTL_Cookbook_, by Don Lancaster.

Jesus, no. Unless you have a need for kindling, get Horowitz and Hill.

-- 
Rainer Malzbender                               This sig has no slack since I'm
Post-doc, Physics                               using it all.
U. of Colorado, Boulder (303)492-1366           rainer@shelley.colorado.edu
From: gkwan@balboa.eng.uci.edu (Greg Kwan)
Subject: Re: good op amps for audio
Newsgroups: sci.electronics
Organization: University of California, Irvine
Date: 30 Jul 92 20:08:19 GMT

In article <1992Jul24.233601.20617@b30.ingr.com> medin@catbyte.b30.ingr.com writes:
>In article <amigo.711917764@milton>, amigo@milton.u.washington.edu (The Friend) writes:
>|> 
>|> 	Interested in the best op amps for work in active crossovers, 
>|> and maybe replacement in CD players (which are known to not have the best
>|> op amps installed).
>
>Although this subject should generate quite a few different
>opinions, I still favor the NE5532 (dual) or NE5534 (single) for
>general purpose audio use.

I second this recommendation. But for a little variety, I'd also
suggest the LM833 (National, also Motorola and perhaps others)
and the 4560 (I've only used the JRC4560 [Japan Radio Corp.], but
I think Exar also makes the part). Both are bipolar.

greg

gkwan@balboa.eng.uci.edu
Newsgroups: sci.electronics
From: jeffj@krfiny.uucp (J. Jonas)
Subject: Re: Caller ID
Organization: Jeff's house of computer pieces
Distribution: na
Date: Fri, 24 Jul 1992 15:45:54 GMT

In article <1992Jul23.004400.9386@kd4dts.dixie.com> jcw@kd4dts.dixie.com
	(John C. Wren) writes:

>Ya know, there is a simple solution to all this talk about Caller ID and
>protecting your number.  It costs a little bit, but it offers you several
>services in the process.
>1)  Obtain Caller ID  (optional)
>2)  Obtain Ring Master + Ring Master Controller

There are many variations on the theme, depending on how much screening
you need, who you intend to block, how much you want to spend.

I don't get many calls, but I have 2 phone lines.
One for me, the other for the computer.
The second line is unlisted, and there's no fee for that since it's
on the same account.  All calls are on the same bill, even
AT&T Reach Out plan covers both phones.

If I wanted to be sneaky, I'd use the primary line for incoming calls,
and use the (unlisted) secondary line for outgoing calls.
That way, anybody calling the modem line gets only the carrier.
That totally defeats people calling me using their caller-id or return call.
They get a valid number, but it's never used for incoming calls.

Right now, I have an answering machine on the second line
telling the people that they were given a wrong number and to please
stop calling.  Apparently getting a carrier didn't stop them from calling
back again and again.  Some goofed up dating service has been giving out
my unlisted data line as some gal's number.

I wish to emphasize that some courtesy is needed.
People honestly get wrong numbers and there's no sense in abusing them.
I'll be polite for a the first few instances, but if I don't get any
cooperation, then manners are discarded.
When a college gave my primary number as that of a storage company,
a little cooperation from one caller got me to the housing office and
they corrected the list.  End of problem.
Politeness usually gets results.

I agree that using
- caller-id
- multiple phone lines
- multiple phone numbers on the same line (multi-ring/ring master...)
all allow you to help identify the caller and prioritize your calls.
Unless you are dealing with real jerks or someone who willing to
expend a lot of time, effort and money, a slight deterrant is all that
is necessary (such as saying "no").

>I'm in the process of building a small microprocessor controller that contains
>Caller ID circuitry.

I too have been experimenting with my caller-id box.
I can't say it's effective at this time because only in-state
calls are identified.  All out of state calls are simply "O"
(out of area), as are many in-state calls too.

- Jeffrey Jonas
jeffj@synsys.uucp
-- 
-- 
Jeffrey Jonas

jeffj@synsys.uucp
From: fgomez@ess.harris.com (Frank Gomez)
Newsgroups: sci.electronics
Subject: Re: Circuit help...
Date: 31 Jul 92 19:39:09 GMT
Reply-To: fgomez@ess.harris.com
Organization: Harris (Government Aerospace Systems)

In article 450@uwm.edu, pegasus@csd4.csd.uwm.edu (David R Hucke) writes:
>Hi everybody!  Got another question.
>
>First of all I wish to thank everybody who has given me help in the past.
>Especially Tony Hefner who has been the most help.  I really appreciate
>the help guys (gals).
>
>
>I wish to build a circuit that sends a parallel byte every 125 us  (is that
>milliseconds?) to a parallel port.  
>
>I would like the byte to be incremented by a counter so that I can verify
>that I am getting the bytes correctly.
>
>The purpose of this circuit is to test the speed of a PC's parallel port.
>
>Any suggestions?

To save you time and effert, the PC's parallel port works at about 1MHz.  The reason I say "about" is that not all mother boards produce exactly 1MHZ.  They may differ by maybe +/- 10% thus .9 to 1.1 MHZ.  But basically they run close to the 1MHz standard.
Newsgroups: sci.electronics
Subject: Telephone scrambler
From: Steve_Grant@kcbbs.gen.nz (Steve Grant)
Date: 29 Jul 92 01:54:27 GMT
Organization: Kappa Crucis Unix BBS, Auckland, New Zealand

Does anyone have plans for such a device?????
Could I get a copy of them please? Thanks -

Steve

Newsgroups: sci.electronics,rec.audio
From: tpearson@titan.trl.OZ.AU (Trevor Pearson)
Subject: Re: Life after CDs
Organization: Telecom Research Labs, Melbourne, Australia
Date: Fri, 24 Jul 1992 06:55:17 GMT

tmkk@uiuc.edu (Khan) writes:
> 
> In article <1992Jul20.192541.1069@access.usask.ca> choy@skorpio.usask.ca writes:
> >CDs are obsolete. What comes next?
> 
> Hmm... Well, LDs are 12" (like records) and analog (like records)...
> Maybe the next generation is a 12" sound-only analog LD. Surely this
> would make the die-hard-vinyl-LP-loving crowd happy? And think of the
> capacity! CLV LDs can cram 60 minutes of video per side. Audio, with its
> much lower bandwidth requirements, could probably fit several hours per
> side.
> 

Sorry to be pedantic but it is only the video that is analog now on 
LD's, the audio is digital. If a new system is required I hope it 
will be Microchip storage. Preferably with much greater sampling 
rate (this I believe is the Achilles heel of CD) and maybe > 16 bit. 
But anyway digital storage is definitely the way to go, lets improve 
it before giving up on it.



 *****************************************
 * Trevor Pearson                        *
 * TRL. Clayton, Australia               *  
Newsgroups: sci.electronics
From: kmasrani@nyx.cs.du.edu (Kamlesh Masrani)
Subject: Is there a 2-200 MHz SSB modulator?
Organization: Nyx, Public Access Unix @ U. of Denver Math/CS dept.
Date: Fri, 24 Jul 92 18:33:05 GMT


I have a Marconi 2022C signal generator that accepts a base-
band input and modulates it to with a selectable carrier frequency
up to 1 GHz.

However, the modulation is only AM or FM.  Is there a signal 
generator or a modulator that does SSB?

Failing this any pointers on baseband frequency translation via
the use of quadrature mixers?

Kamlesh
From: sergeb@betwixt.ugcs.caltech.edu (Serge Belongie)
Newsgroups: sci.electronics
Subject: FAQ question
Date: 24 Jul 92 03:24:31 GMT
Organization: California Institute of Technology, Pasadena

Does anyone know if there is an FAQ site or other ftp site that
discusses basic circuit analysis, like the georgia tech site 
that has educational material for dsp?  Please respond by e-mail.

Serge

--
Serge Belongie
  California Institute of Technology
    Pasadena, CA
      sergeb@caltech.edu
From: "peter gottlieb" <peter.gottlieb@channel1.com>
Newsgroups: sci.electronics
Subject: shocking stories
Date: 29 Jul 92 20:43:42 EST
Reply-To: "peter gottlieb" <peter.gottlieb@channel1.com>
Distribution: sci
Organization: Channel 1 Communications

NJF>Ok. I want to know from the net people. What is the largest voltage shock
NJF>you have ever received (and survived.) I am not talking about rewiring
NJF>a light switch. I am talking about kissing the flyback transformer.

I was once repairing a defibrilator and got myself across the main
capacitor bank.  Enough for 10, 400 joule shocks since I dropped the
voltage from 450 down to about 25.  Blew me off the lab stool and
across the room, and I was shaking for the rest of the day.

Don't try this at home.

---
  OLX 2.2  Friction is a drag.
--
Channel 1 (R)   Cambridge, MA

Newsgroups: sci.electronics,rec.audio,alt.folklore.computers
From: ALAN@VM1.McGill.CA (Alan Greenberg)
Subject: Re: Life after CDs
Organization: McGill University
Date: Sat, 25 Jul 1992 03:27:26 GMT

In article <1343@eouk9.eoe.co.uk>
ahaley@eoe.co.uk (Andrew Haley) writes:
 
>No, it's not apocryphal, but you've got a slightly distorted version.
>The person was Akio Morita, not his wife, and one of his favourite
>pieces is Beethoven's Ninth, which, if played fairly slowly, can be 74
>minutes long. The Dutch engineers at Phlips supposedly wanted an
>hour, which sounded like a nice round figure.
 
 In the May 1992 Stereo Review, a reader wrote in asking if it was true
 that the CD was designed to hold Beethoven's Ninth (which the reader
 said was 76.5 minutes).  The reply was
 
   "According to Dr. H. Nakajima, who headed Sony's design team for the
   compact disc, its diameter was changed from 4 to 4.72 inches specifically
   to fit the a typical recording of Beethoven's Ninth Symphony."
 
 Alan
Newsgroups: sci.electronics
From: eric@telebit.com (Eric Smith)
Subject: Re: Are there any large PALs/GALs?
Organization: Telebit Corporation
Date: 22 Jul 92 20:40:07

>>On Thu, 23 Jul 1992 00:46:41 GMT, jeremym@fraser.sfu.ca (Jeremy Thomas McDonald) said:
> I was wondering if there are any PALs/GALs that have a large number of D
> flipflops.

Yes.  How much money do you have?  More than the National debt?  Good.

> I need to implement two 12-bit counters and a 15-state FSM and and 8-bit
> register.  I also need three 8-bit I/O ports.

If this partions easily, you are much better off using several small PALs.
The cost and performance will be better.  The 8-bit I/O ports are obvious
candidates for external parts.  Surface mount 74HC374s don't take up that
much room.

If you must do this, you could probably use one of the big Altera parts.
I'm not sure that an EP1800 will do all this, but I think they've got some
big MAX parts that will.

Xilinx, Actel, QuickLogic, etc. make FPGAs that can do this.

If you don't already have a design system and programmer for the big parts,
plan on spending mucho bucks for it.  That's another point in favor of using
multiple small parts.  Not only are the parts cheap, there are cheap (and in
some cases, free) development tools for them.

Cheers,
Eric