HDTenEightyP/NetNews huggingface dataset:
From: hochberg@ACFCLUSTER.NYU.EDU
Subject: IAS Mathematics Seminars, Week of Oct. 12
Organization: New York University
Date: Fri, 9 Oct 1992 16:01:14 GMT

		INSTITUTE FOR ADVANCED STUDY
		   School of Mathematics
		    Princeton, NJ 08540

Mathematics Seminars				Week of October 12, 1992

MEMBERS SEMINAR					Monday		4:00 p.m.
  Speaker:   Dipendra Prasad, IAS		October 12	Fuld 119
  Topic:     Branching laws for representations of real
	       and p-adic groups

ALGEBRAIC GEOMETRY SEMINAR			Tuesday		9:30 a.m.
  Speaker:   Gerd Faltings, IAS			October 13	Fuld 119
  Topic:     Factorization in CFT (Verlinde-formula)

PDE SEMINAR					Tuesday		11:00 a.m.
  Speaker:   Manuel del Pino, IAS		October 13	Fuld 119
  Topic:     A priori estimates and existence for a semilinear
	       elliptic system

SCALAR AND MEAN CURVATURE SEMINAR		Tuesday		2:00 p.m.
  Speaker:   Nicholas Korevaar, IAS		October 13	Fuld 119
  Topic:     Analogues between constant scalar and mean curvature

SUPER-RIGIDITY SEMINAR				Wednesday	11:00 a.m.
  Speaker:   Kevin Corlette, IAS 		October 14	Lib. Annex
  Topic:     Archimedean super-rigidity in hyperbolic geometry (continued)

DIOPHANTINE APPROXIMATION SEMINAR		Wednesday	2:00 p.m.
  Speaker:   Enrico Bombieri, IAS		October 14	Fuld 119
  Topic:     New effective methods for the Thue equation (continued)

GEOMETRY SEMINAR				Wednesday	3:00 p.m.
  Speaker:   Huai-Dong Cao, IAS			October 14	Lib. Annex
  Topic:     The Ricci flow on Kahler manifolds

QUANTUM ALGEBRAIC GEOMETRY SEMINAR		Thursday	9:30 a.m.
  Speaker:   David Morrison, IAS		October 15	Fuld 119
  Topic:     Hodge theory and mirror symmetry

GEOMETRIC HEAT FLOWS SEMINAR			Thursday	11:00 a.m.
  Speaker:   Richard Hamilton, IAS		October 15	Fuld 119
  Topic:     A survey of geometric flows (continued)

FICCI FLOW SEMINAR				Thursday	2:00 p.m.
  Speaker:   Richard Hamilton, IAS		October 15	Fuld 119
  Topic:     Results and conjectures in the Ricci flow (continued)

APPLIED MATHEMATICS-MATH PHYSICS SEMINAR	Thursday	3:30 p.m.*
  Speaker:   Jonathan Goodman, Courant		October 15	Fuld 119
  Topic:     Stability of Fronts and the Kuramoto-Sivashinsky
	       equations

SPECIAL MATH PHYSICS SEMINAR			Friday		2:00 p.m.
  Speaker:   Eugene Trubowitz, E.T.H., Zurich	October 16	Fuld 119
  Topic:     Infinite genus Riemann surfaces

                       Upcoming Seminars

MEMBERS SEMINAR					Monday		4:00 p.m.
  Speaker:   Lucas Hsu, IAS			October 19	Fuld 119
  Topic:     Rigidity of integral curves and Gromov's h-principle

*Please note time change
	

Newsgroups: nyc.seminars
From: bruce.baer@factory.com (Bruce Baer) 
Newsgroups: nyc.test
Subject: TEST
Date: 8 Oct 92 00:17:00 GMT
Distribution: world
Organization: Invention Factory's BBS - New York City, NY - 212-274-1243v.32bis
Reply-To: bruce.baer@factory.com (Bruce Baer) 

bruce,baer@factory.com (Bruce Baer)


TEST,TEST,TEST
Newsgroups: sci.systems
Subject: subscription
From: <D19YC@CUNYVM.BITNET>
Date: Wednesday, 14 Oct 1992 20:17:14 EDT
Organization: City University of New York/ University Computer Center

How can I subscribe to the SCI newsgroups?
From: jeff@hpuplca.nsr.hp.com (     Jeff Gruszynski)
Newsgroups: sci.electronics
Subject: Re: what's a SAW?
Date: 16 Oct 92 18:20:05 GMT
Organization: Hewlett-Packard Neely Golden Gate Area (Northern Calif.)

In sci.electronics, nagle@netcom.com (John Nagle) writes:

> hbg6@phx.mcd.mot.com (John Schuch) writes:
> >Could someone explain what a SAW filter is and what it is used
> >for? ( the $.25 explanation will do )
>
>         Surface Acoustic Wave filters are analog computational elements
> usually used to perform correlations.  They're typically used with
> "chirp" radars, where the outgoing signal is a random or psuedorandom
> bitstream, and the return signal needs to be correlated with the outgoing
> signal to obtain the range.  SAW devices do this by electromechanical
> means, driving a suitably shaped flat plate with multiple (typically 2)
> piezoelectric transducers, and detecting, along one edge, where the 
> waves reinforce.  Remember ripple tanks from high-school physics?  Same idea.
> See any textbook on modern radar techniques for details.
>
>         This is mostly a military technique, but if you need to operate
> many radars or lidars in a small space (consider automobile anticollision
> systems for freeway driving) it's the best known way to do it.
>
> 					John Nagle

They're also used for regular filtering, especially IF filters.  The average
elektroniker is most likely to see these in newer TV IFs.  National Semi
makes TV strips that specifically use Sawtek (a company) SAW filters.

The advantages include: very steep skirts, good out-of-band rejection.
disadvantages include: high insertion loss, high drive levels required.

Jeff
From: jvp@juliet.ll.mit.edu ( Jim Pieronek )
Newsgroups: sci.electronics
Subject: Re: ZIPS/SIMMS ON A WIREWRAP BOARD - Adapter Available
Date: 13 Oct 92 17:39:32 GMT
Organization: M.I.T. Lincoln Lab - Group 43

In <1992Oct13.004355.4675@athena.mit.edu> larryhsu@mtl.mit.edu (Lawrence Hsu) writes:

   >Has anyone ever tried to mount ZIPs/SIMMs with two staggered rows of
   >0.1 mil pitch pins on a wirewrap board, which has 0.1 mil pitch holes
   >but in a nonstaggered pattern?  

   >I want to change this:
   >     *   *   *   *   *   *   *
   >       *   *   *   *   *   *   *
   >to this:
   >     *   *   *   *   *   *   *
   >     *   *   *   *   *   *   *

   >Are there any sockets that change the staggered pattern to a
   >nonstaggered?  I looked through the AMP catalog, and they had nothing
   >for 64-pin SIMMs.

Emulation Technology makes a 32-pin ZIP to 300-mil DIP adapter.  It
appears (from the catalog) that they are built to be strung together
to make longer sockets.  Their phone number in Santa Clara, CA is:
(408) 982-0660

- Jim


--
-----------------------------------------------------------------------
J.V. Pieronek                           Internet: jvp@ll.mit.edu
M.I.T. Lincoln Laboratory               (617) 981-3468
Lexington, Massachusetts  USA
Newsgroups: sci.electronics
From: henry@zoo.toronto.edu (Henry Spencer)
Subject: Re: CD vs. CD-ROM
Date: Sat, 10 Oct 1992 22:45:22 GMT
Organization: U of Toronto Zoology

In article <1b3025INN7je@usenet.INS.CWRU.Edu> an938@cleveland.Freenet.Edu (George II Lenzer) writes:
>	What are the differences between a CD player and a CD-ROM
>device?  Putting the SCSI interface and controller mechanisms
>aside, is the reading done in a similar fashion?

Pretty much.  Some of the CDROM readers can be used as CD players.

>BIG DUMB QUESTION:  How much work would be involved in trying to
>"convert" a CD player to a CD-ROM? ...

I can't answer authoritatively, but my gut reaction is "a lot".  For
one thing, you'd need to get at the raw bit stream, which may not be
readily accessible.  (CD players are built in huge volume, more than
enough to justify a lot of custom chips.)  For another, you'd have to
implement most of the error-correction stuff yourself, because CDROMs
have much more elaborate error detect/correct than CDs do.  (One wrong
bit on a CD is not going to spoil the music.)
-- 
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
From: sevenup@netcom.com (Mark W. Moorcroft)
Newsgroups: sci.electronics
Subject: Schematic Symbol Query
Date: 11 Oct 92 22:08:24 GMT
Distribution: us
Organization: Netcom - Online Communication Services (408 241-9760 guest)




Help wanted:
I am doing a research paper on schematic symbol origins.  The symbol
that seems to be giving me the most difficulty is "B", which is the
designator for the electric motor.  The only link that I have been
able to find is the abbreviation for magnetic flux density which is
the symbol Beta.  I need to know what the original connection was
between the symbol Beta and the ref. des. B for the electric motor.


respond by E-mail or to the group, any info will be most helpful :-)


-- 

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 Mark W. Moorcroft -- sevenup@netcom.COM -- C.I.S. 70741,325
-------------------------------------------------------------
  "I speak for myself and those who agree with me !"   ;-)
Newsgroups: sci.electronics
From: josemj1@aplmail.jhuapl.edu (Marshall Jose)
Subject: Re: Smith Chart
Followup-To: sci.electronics
Organization: JHU-Applied Physics Laboratory
Date: Mon, 12 Oct 92 12:51:44 GMT

I posted this reply on Friday with a cross post to rec.radio.amateur.misc,
but my brain-damaged news program didn't see the original group
(sci.electronics) and didn't post it here. So I'm posting it here now.
----------------------------------------------------------------------
In article <schumach.718567325@convex.convex.com>,
  schumach@convex.com (Richard A. Schumacher) wrote:

> Presumably this was produced under license from the
> patent and copyright holder? I doubt it.

Your doubt is correct. The Smith chart program I wrote for PostScript
printers is a shameless rip-off of the 1966 version of Phillip Smith's
impedance chart, for which the Kay Electric Co. was licensed to publish.
The header clearly declares its reproduction without permission.

> Don't cheat the inventor and his heirs. Go out and
> buy a licensed copy. The patent rights and royalties 
> you protect may be your own.

Well, this IS an interesting point of view. I agree with you in principle;
there is too much thievery of intellectual property going on today. I, too,
sought to purchase and employ the "real thing", but was stopped by a
phenomenon which is fairly recent: nobody with money buys Smith Charts,
rather they buy $10K microwave modeling software packages.

Now, I had hoped to purchase some charts from Kay Electric, but I was
unable to find a listing for them in the latest Microwaves & RF Buyer's
Guide.  I also found that no one else was selling these charts, for the
reason that NO ONE IS BUYING THESE CHARTS (except perhaps students, but
they couldn't possibly represent a serious market share).

I consulted the ARRL's book service, and found them generously selling a
degenerated copy of the chart (nowhere near as useful as Kay's) for about
$1.00/sheet.

So, being the resourceful student I was (*ironic smirk*), I wrote a
PostScript program to draw the Chart for use in my classes. When I
convinced myself of its fidelity to the original, I prepended a "public
domain only" disclaimer to it and uploaded it to simtel20.wsmr.army.mil,
where is still resides in <MISC.HAMRADIO>.

I've never told anyone this because it never came up and I didn't want
to decrease the SNR on sci.electronics and rec.radio.amateur.misc.

Are Smith's heirs being cheated by my PostScript program? I doubt it.

Are they being cheated by the countless software companies in whose
software the chart (specifically the insightful bilinear transform it
represents) is an absolutely essential part? Probably.

I don't care, and won't until I hear from the Smith estate's lawyers.

Marshall Jose
josemj1@aplmail.jhuapl.edu
Newsgroups: sci.electronics
Subject: Re: Student version of SPICE???
From: <GNR100@psuvm.psu.edu>
Date: Sat, 10 Oct 1992 19:34:18 EDT
Organization: Penn State University

  What's wrong with the version avaailable through FTP?
Why mess with ordering it through the mail when you can just go grab it
yourself?
                   Gordon Rogers
                   Student - EET
                   Pennsyvania State University
                    gnr100@psuvm.psu.edu
From: wpns@miki.pictel.com (Willie Smith)
Newsgroups: sci.electronics
Subject: Re: volts to digital display (?)
Date: 14 Oct 92 17:54:00 GMT
Article-I.D.: miki.1992Oct14.175400.5588
Organization: PictureTel Corporation

In article <1992Oct07.133456.16269@ncrcae.ColumbiaSC.NCR.COM> chris@lightnin.Columbia.NCR.COM writes:
>
>  I am interested in finding a chip that will convert an analog
>voltage to a digital readout.  I will be monitoring less than 10v
>so the display need only be "X.XX" type resolution.                   

How about a device called a Digital Volt Meter?  You can get a DVM
from anywhere from Radio Shack on up, from $20 on up.  Digi-Key and
others have Digital Panel Meters you can fiddle with too, but they
tend to be more expensive than handheld DVMs due to volume of the
demand for them...

Willie Smith
wpns@pictel.com
From: u9a36@seq1.keele.ac.uk (S Booth)
Newsgroups: sci.electronics
Subject: RE: Reason for GND around PC board
Date: 12 Oct 1992 06:40:45 -0500
Organization: UTexas Mail-to-News Gateway
NNTP-Posting-Host: cs.utexas.edu
X-Unparseable-Date: Mon, 12 Oct 92 12:38:07 WET DST

	
	I'd Guess it's something to do with minimising Electromagnetic
	Interferance (EMI).

	As I recall (this is from a year or so back so please tolerate any
	errors of menmory) as the clock frequency of a board (or bandwidth
	in the case of analogue) increases the more prone to EMI they become
	and the more EMI they generate.

	This is the reason for the use of Ground planes on fast analogue boards
	and the use of microstrip board (though problems with stray capacitence
	and inductance does have a deal to do with it.

	If the above is wrong blame my electromagnetics lecturer as this is just
	what he told us OK! :-)

-- 
				Stephen Booth

--

   |----------------------------------------------------------------------|
   | University of Keele, Keele       |            u9a36@uk.ac.keele.seq1 |
   | All normal disclaimers apply     |            u9a36@seq1.keele.ac.uk |
   |----------------------------------------------------------------------|

                        STOP CAPITAL PUNISHMENT NOW
From: flux@sys6626.bison.mb.ca (John Kamchen)
Newsgroups: sci.electronics
Subject: Small audio device
Date: Thu, 08 Oct 92 17:42:50 CST
Organization: System 6626 BBS, Winnipeg Manitoba Canada

Where could I find plans for a small, ultra simple wire-less
mike ?  I do alot of video work, and would like to use a wireless on 
occasion.  Radio SHack used to sell a device, for $100, but it didn't 
work well in the sunlight.
I don't care if it's a 'wee-bit' past what the FCC wants.. I'm a 
Canadian, who care about the FCC.
A 100 to 200ft range would be just fine.
-John
From: kharstin@MtHolyoke.edu (Ken Harstine)
Newsgroups: sci.electronics
Subject: Re: Student version of SPICE???
Date: 9 Oct 92 18:50:34 GMT
Organization: Mount Holyoke College
X-Newsreader: Tin 1.1 PL5

There is a student version of PSpice.  It is available from:

	Book Distribution Center
	Prentice Hall
	Route 59
	Brook Hill Drive
	West Nyack, New York  10995

A couple of years ago the prices were:

	$7.00 5/14"IBM
	$6.00 3.5" IBM/PS2
	$11.00 MAC II

It seems to be a fairly good execution of Spice.  It is limited I beleive
to 200 nodes.  It also has a graphic data viewer called Probe.
From: daver@sunspot.ssl.berkeley.edu (David Ray)
Newsgroups: sci.electronics
Subject: Need info: 1953 aircraft gyro, ordinance#9064932, need pinout
Date: 8 Oct 1992 20:52:07 GMT
Organization: /etc/organization
NNTP-Posting-Host: sunspot.ssl.berkeley.edu


      I have an aircraft wing roll gyro from ~1953. I want to hook it up
and get it working. There is no information about it except that it was
built to "ordinance #9064932". There is no manufacturer or part number
on it.
      I talked to some gyro experts at Honeywell and they gave me some 
good historical info, but couldn't help locating the spec sheet.
Apparently the "ordinance number" was a government spec that was
issued for military and governement equipment before the current system
of "national stock numbers" was created in the late 1950's.
The gyro experts also told me that it most probably uses a 24V 400Hz
power, as did all aircraft equipment in those days.
      The gyro has about 6 wires. I checked continuity and resistance
across all combinations of the wires, and some of them have resistance
in the 3 to 20 ohm range. These probably go to the windings of the motor
or inductive feedback sensor. I'm afraid to hook up 24V power to it
because I don't want to accidentally burn out a sensor.

Does anybody know wgere I can locate a spec sheet for this gyro?

Dave    daver@sunspot.ssl.berkeley.edu   (510) 527-9010
Newsgroups: sci.electronics
From: nagle@netcom.com (John Nagle)
Subject: Re: Filtering noise from a Van de Graaf
Keywords: Filters Noise VandeGraaf
Organization: Netcom - Online Communication Services  (408 241-9760 guest) 
Date: Thu, 8 Oct 1992 16:51:06 GMT

gkm@cc.uow.edu.au (Glen K Moore) writes:
>I have built a large Van de Graaf. Belt 6" wide and 6' high. Unfortunately
>it rresets computers and destroys chips in some equipment on the same mains.
>I have tried a few comercial flters with no success.
>Does anyone have any ideas on suitable filters in these circumstances?

         Try an isolation transformer in the power line.  Preferably one
where the primary and secondary are physically separated on the core.
Ground the core solidly.  This should get RF and static leakage down
to the point where ordinary filters on the line side of the transformer
can handle the rest.  

         "Ground", in this kind of situation, is a problem.  Using the
power line protective ground or the neutral as ground will probably
make the problem worse, rather than better.  You probably need your own
heavy ground conductor run to outside stakes into the ground.  Check
local electrical codes for instructions.  Anything grounded in the
Van de Graaf system needs to be tied to a very solid ground
using heavy conductors.  

         The Van de Graaf will still be emitting RF itself, of course.
If this remains a problem, you might have to enclose the whole display in
a Faraday cage.  

         You might check with the Boston Science Museum, Boston, MA, 
which has a very large Van de Graaf (about 35 feet high).  They
deal with the Faraday cage issue in a clever way, with a pattern of
thin wires strung from floor to ceiling, barely visible to the visitors.

					John Nagle
From: hampster@phys.ksu.edu (Kip J. Mussatt)
Newsgroups: sci.electronics
Subject: Re: Need Help with Op-Amps
Date: 14 Oct 1992 00:32:20 GMT
Organization: Kansas State University
NNTP-Posting-Host: bohr.phys.ksu.edu

In <1992Oct9.203417.246@ole.cdac.com> ssave@ole.cdac.com (The Devil Reincarnate) writes:

>In article <9988@ncrwat.Waterloo.NCR.COM> tjgerman@53iss6.Waterloo.NCR.COM (Trevor German) writes:
>>


>   I have a similar question about op-amps.  This is what I want to do:


>  I have an input sinusoidal signal.  This will be of a real-time variable
>frequency. (That's the problem).  What I want is an inverse of this signal
>that is exactly 180 deg. out of phase with it.  If I pass it through an 
>inverting amplifier, I will introduce a delay in the signal as I pass it
>through the circuitry.  I can't live with this delay. Upto 2 deg. 

>  I need suggestions that will look at the output and input of the inverting 
>amp. and delay the output so that the input and output are *EXACTLY* 180 deg. 
>out of phase.  I can't (don't want to) touch the input. Maybe someone has 
>ideas of reeeeaaaal fast inverting amplifier designs, etc.

>  It has to be instantaneous, some sort of feedback, without any degradation
>of the signals, ie. bucket brigade and charge storage is out.  The freq. range
>is DC (ok, 1Hz) to 20 KHz.  

At 20KHz, the period of oscillation is 50uS.  If there is any time delay on 
an op-amp, it should be much smaller (several orders of magnitude smaller)
than the period in question.  The info on the 741 says something about a    
.3 uS transient rist time delay.  I assume that after the transients have
died off/etc., that any time delay will depend on the phase shift.  You said
you wanted just to invert the signal.  Well that is basically an all pass 
filter with an adjustable phase shift.  If the time delay is real critical,
you could always adjust the phase shift from 180 degrees to compensate.  This
compensation would depend on the particular frequency.  Hope this helps.

-Kip J. Mussatt

hampster@bohr.phys.ksu.edu  ||  hampster@matt.ksu.ksu.edu
--
hampster@phys.ksu.edu
Newsgroups: sci.electronics
From: swanee@megadata.mega.oz.au (Geoff Swan)
Subject: Re: volts to digital display (?)
Organization: Megadata P/L, North Ryde, Sydney, Aust.
Date: Mon, 12 Oct 1992 00:55:58 GMT

In article <1992Oct07.133456.16269@ncrcae.ColumbiaSC.NCR.COM>, chris@lightnin.Columbia.NCR.COM () writes:
>   I am interested in finding a chip that will convert an analog
> voltage to a digital readout.  I will be monitoring less than 10v
> so the display need only be "X.XX" type resolution.                   
> 
>  Chris Landi                               

All you need here is a linear VCO (try LM566 or similar) feeding a
counter gated with a slow clock signal. The output of the counter
feeds a binary to BCD decoder/driver for 7 segment or LC displays.

    Sla/n go fo/ill,
                    Risky B.
--------------------------------------------------------------------------
Geoff Swan (research & development)   _--_|\         swanee@megadata.oz.au
Megadata Pty Ltd                     /      \ 
2/37 Waterloo Rd, North Ryde,        \_.--._/               +61 2 805 0899
NSW 2113, Australia.                       v          (Fax) +61 2 887 4847
From: carlos_l_qualls@ccm.hf.intel.com (Carlos Qualls)
Newsgroups: sci.electronics
Subject: Large LED Reader Board info wanted!
Keywords: LED Reader
Date: 15 Oct 92 21:36:06 GMT
Distribution: usa
Organization: Computing Environment Lab

I am trying to find out where to buy a large LED Reader Board that can
be read from across a large room (approx 1000 feet). Any pointers would
be welcome.

Thanks
Carlos Qualls
clq@ccm.hf.intel.com

PS: This has nothing to do with electronics, but I could not think of
another group that would reach the people that might know the answer to
this question.
Thanks again.
From: exumfox@exu.ericsson.se (Mike Fox)
Newsgroups: sci.electronics
Subject: Re: Can I use 1 power supply instead of 2 9-vo
Date: 15 Oct 92 23:24:02 GMT
Reply-To: exumfox@exu.ericsson.se
Organization: Ericsson Network Systems
X-Disclaimer: This article was posted by a user at Ericsson.
              The opinions expressed are strictly those of the
              user and not necessarily those of Ericsson.


In article 23610@netcom.com, kehoe@netcom.com (Thomas David Kehoe) writes:

  My op-amp prototype uses two 9-volt batteries, to supply
  +9 volts, -9 volts, and ground.  It requires new batteries
  after 5-10 hours of use, and I have a 9-volt power supply
  (that plugs into the wall).  Replacing the +9 volts battery
  with the power supply will be easy.  Is there an easy way
  to replace the -9 volt battery?

Why not try a higher voltage DC transformer, it. 24 Volts and call
12 volts ground. Then the original 24 volt terminal will be +12V
reference to "ground" and the original 0 volt terminal will be -12V.
Its all relative...
Newsgroups: sci.electronics
From: rky57514@uxa.cso.uiuc.edu (Tall Cool One )
Subject: Re: Student version of SPICE???
Organization: University of Illinois at Urbana
Date: Mon, 12 Oct 1992 01:42:19 GMT

huey@athena.mit.edu (Huy Le) writes:

>In article <1992Oct9.143138.203047@uctvax.uct.ac.za>, clrmic08@uctvax.uct.ac.za writes:
>|> Is there a student or demo version of SPICE around. If so where can I get 
>|> a copy from ? An FTP site would be the most convenient. 
>|> Thanks
>|> Mike


>I know the company MicroSims in California does send out free demo
>copies of Spice, but I dont have their address off hand.


>HL

You can get PSpice from wuarchive.wustl.edu.  It's in pub/msdos/electrical, I
think.  I got an evaluation copy of PSpice from there.  Good luck!


 _I_______________________________________________________________________I_
(_@_)                                                                   (_@_)
|   |   Raymond Yeung                   Internet: Nimbus@uiuc.edu       |   |
|   |                                  NeXT mail: rky57514@             |   |
|   |   EE student at the                         sumter.cso.uiuc.edu   |   |
|   |   University of Illinois                                          |   |
|   |   at Urbana-Champaign           CompuServe: 70700,1011            |   |
(___)-------------------------------------------------------------------(___)
  I                                                                       I