Hey guys,

Tah-Dah!  Looks like we got ourselves a group.  Thanks for your
support.

I'm getting 'bitty' here, but are the footers on this email cool
w/you guys?

Dave Narby

Hi all,

My name is Stan Mayer and I'm a professed addicted MEG builder and I
make no apologies for this.  When Dave Narby the owner of this site
approached me with the idea of creating a Yahoo group where MEG
builders and people planning to build MEGs could share ideas, I
pretty much jumped at the chance of being part of and helping with
this forum so here I am, posting a hello to you all.

What do I personally hope to get out of this site?  I hope to learn
from the building experiences of others about what it takes to make a
MEG work, find some more MEG resources, and perhaps share some of my
MEG experiences.  While I am relatively new to the MEG concept, I
find it to be so fascinating that I've spent almost 60 days of 10
hour days working on my MEG and dealing with failing transistors,
trying all kinds of things to break the COP=1 barrier, and I'm happy
to report that I'm getting closer all the time.

For this, my first real posting, I'll try to keep it short but
forgive me if I don't as I tend to be verbose.  First off I am a
classical hands-on electronics technician, working in the electronics
manufacture industry for 18 years and have just recently retired to
do some of the things that I have put off for years.

Among these retirement to-dos was a to-do to work on the concept of a
magnetic valve or transistor to valve or control permanent magnetic
fields.  My thinking was that while we have at least learned how to
harness and control some forms energy, "forces," atomic particles
such as electron flow and portions of the electromagnetic spectrum
(and in some cases we can do this gain), we have had very little
success in controlling things like magnetism and gravity with a
control gain.   As I got to thinking about how we can control a
relatively large electron current flow in a field effect transistor
with a feeble electrostatic field, I wondered if a similar principle
could be used to control magnetic flux.  If so, one could create a no-
input-force-required or motionless electrical generator from some
permanent magnets and "magnetic valves" that could supply us with
energy at nearly no cost and I developed some ideas for my transistor
on paper.

Recently I went on the web to search for information on magnetism,
and as luck or serendipity would have it, I came across Naudine's JLN
Lab site and after I studied the MEG, I realized that it looked very
much like the approach that I had been thinking about.  I must admit
that I don't understand the theory of the MEG very well at all, what
with one theory being that it taps into scalar potentials and another
theory being that gain can be had by just simple shuttling flux from
one side of a ring core to another, nevertheless something inside me
tells me that whatever the "magic" is, it is real ... and the bottom
line in my opinion (MO) is that this is what life is mostly about ...
believing in something and then going out and finding out if it can
be done.

Anyway, I am looking forward to the postings that will come to this
site and I hope to be able to also help some of you to, if nothing
else, avoid some of the mistakes that I and apparently many others
have made in building MEGs and maybe help somebody get to a
successful MEG soon.

IN CLOSING, I'D LIKE TO ENCOURAGE THOSE OF YOU THAT HAVE CONSIDERED
BUILDING A MEG IN THE FUTURE TO NOT WAIT FOR THE FUTURE BUT TO START
NOW.

Let's take advantage NOW of each other's capabilities, fields
of expertise and our real time building experiences.  Let's make this
site a place of action vs. a forum for theories!

Good luck to you all!

Stan Mayer
   USA

P.S.  You'll find a .jpg graphic of the schematic for my current MEG
in the files section of this site.  In my next posting, I hope to
explain two unusual things about this design, namely a circuit to
protect the driver transistors from excess current and a circuit to
protect the driver transistors from the excess forward voltages
created by the inductive kick of the input coils.

Hello to all the new members.  (myself included)

I dabbled with the MEG concept last year until I got sidetracked onto
other projects like the VTA and systemG concepts.  I have some of my
experimental results on my web page at
http://www.execpc.com/~mbauer/index.html

I have schematics of my MEG driver circuitry under my MEG link.  I
learned from experimenting that it is important to know the specs of
the materials you are working with.  Simply putting magnets in the
middle of a random core won't likely yield anything like overunity.
The core size needs to be matched to the magnet strength so that the
non-linear portion of the B-H curve is utilized.

For those interested in the VTA concept, there is a sweet-VTA egroup
that compliments this group with discussions into magnetic properties
of materials and electronic controls. I have info on my progress
on that project with schematics at my website also.

As for myself, I have a background in electronics and fabrication,
amateur radio extra class license, a small machine shop in my
basement, and lots of junk parts waiting for some good use.  My day
job is repairing MRI medical scanners and large magnet systems,
cryogens, computers, etc.

Please excuse me if I mainly lurk while I finish up some of my other
projects.

Mike Bauer, NS9J

Hi,

as a first step, I bouth Wavetek 20Mhz Pulse/Function Generator
which will play a role as - a pulse generator, of course.

The reason I want to use function generator, is to see
how MEG and his output will behave under different wave forms...

Now I will need amplifier, to amplify signals from function
generator, before sending then to the actuator (input coil).
Or I will just build simple one with one Mosfet and two transistors.


Attached to the message is image of the Wavetek generator.

Regards,
Vencislav


__________________________________________________
Do You Yahoo!?
Get personalized email addresses from Yahoo! Mail
http://personal.mail.yahoo.com/

MEG builders:

I unfortunately did not know that Yahoo requires the list owner to manually
give moderators their privileges.  Everyone who was pending for membership
is now approved - sorry it took so long, I had a long work day today and
wasn't able to do it until now.  Stan and Vencislav can now approve all new
members, so this probably won't happen again...

Sorry for the inconvenience and thanks very much for your enthusiastic
response to our new group!

All the best,

Dave N.


"Every truth passes through three stages before it is recognized. In the
first it is ridiculed, in the second it is violently opposed, in the third
it is regarded as self-evident"

- Arthur Schopenhauer

Sir Arthur C. Clark's addendum to Schopenhauer:  "Stage 4 - I thought of it
first."






.


_________________________________________________________
Do You Yahoo!?
Get your free @yahoo.com address at http://mail.yahoo.com

A purchased function generator will certainly make experimenting with
the input waveforms easier.  The waveform frequency and pulse width is
important as the best MEG output can be tweaked in with a few knobs.

For those who don't have access to a piece of test equipment like
that, I built a MEG driver board with variable pulse width and
frequency controls out of the basic circuit that JLN used.  The
controls are not calibrated, but since I monitor multiple test points
on different oscilloscopes, I could measure the pulse parameters
directly.  The circuit I built is at

http://www.execpc.com/~mbauer/MEGcontrol.jpg

The output stage of this control board could also be cloned to buffer
the output stage of the function generator.  Parts are available at
digikey.com

Mike.





--- In MEG_builders@y..., Vencislav <vencib@y...> wrote:
> Hi,
>
> as a first step, I bouth Wavetek 20Mhz Pulse/Function Generator
> which will play a role as - a pulse generator, of course.
>
> The reason I want to use function generator, is to see
> how MEG and his output will behave under different wave forms...
>
> Now I will need amplifier, to amplify signals from function
> generator, before sending then to the actuator (input coil).
> Or I will just build simple one with one Mosfet and two transistors.
>
>
> Attached to the message is image of the Wavetek generator.
>
> Regards,
> Vencislav
>
>
> __________________________________________________
> Do You Yahoo!?
> Get personalized email addresses from Yahoo! Mail
> http://personal.mail.yahoo.com/

Hi All,

My name is Randy Bruner, and I guess I'll start off by giving a brief
background of myself. I worked as a welder for 17 years, then as an
electrician for about 5, and for the last 4 as a computer programmer.
I learned electronics on my own (and am in no way an expert, in fact
far from it).
Now that thats out of the way, I can say that I am currently
experimenting with a MEG buildup that I have put together over the
last several months. I have tried different coil and control circuit
configurations, all without a magnet so as to get some starting point
to compare with after I get a magnet. I am now using a control
circuit that I designed, which seems to be sufficient for now. I
haven't yet purchased a magnet, but that will be coming soon.
I am glad to see a group devoted to the MEG, and look forward to
working with y'all (yes, I'm from south Louisiana ;^).

Best Regards,
Randy

Hi all,

I'm one of the group moderators and I thought that I might take a
quick moment to take a stab at giving us all an update about how the
site is doing, etc.  Well, as of today, we have something like 40
subscribers.  Shows me that there is a lot of interest in MEGs!  By
the way, one of our subscribers is Naudine!  I suspect that he
intends to just watch us but who knows, we might even see some
contributions from him.    And who knows, maybe even Tom Bearden will
show up :-)

You may have noticed that there hasn't been exactly a surge of
postings so far.  Feel free to reply to existing posts, post a new
thread/idea, etc.  The posts also help the moderators to determine
how we can best support the group.

While I don't think it is the moderators' intent to lead this group,
rather just to do things like maintain a file directory for the
drawings and things that are contributed and of course to perhaps
prevent things like spamming, flaming, etc., I feel that we
moderators can occasionally post things that help to keep the group
rolling. You know, like words of encouragement, notifications of new
files available at the site's file section, etc.  Haven't checked out
our file area yet?  Well what's keeping you?  Maybe you'd like to put
some photos or schematics of your MEG there for others to see and
learn from.  Send them! For those of you that have posted, thanks!
One of the messages points to the author's web site where you can see
some of his meg stuff and his controller schematic.  Great!

I think at this point as we head into the weekend that we three
moderators are just catching our breath and probably next week we'll
add some more files to the file section, etc., and maybe even post
some of our own contributions.  As for me, there are at least two
messages that I need to reply to and I will and I also want to
explain the two driver xistor protection circuits of my MEG circuit
but guess what?  Right now I need to rewind one of the 1500 turn
output coils for my MEG because I ramped the supply voltage up with
no load on one of the coils and the coil promptly became an ozone
generator.  Zap, crackle, pop!  I just picked up a MOV for another
test load and got the right driver circuit working again so I am
anxious to resumes tests with MOV loads.  By the way, when I get the
MEG output coil voltage up to about 2000Vptop, strange things begin
to happen with regards to earth ground.  I can draw arcs that are too
large to be appropriate for this value of voltage (707Vrms).  It's
almost like I have a Tela coil. Sparkles appear on the screen of my
shop TV and the GFCI breaker for one of the shop's circuits
mysteriously trips.   Hmmmmm.

Well, back to reality.  I may be retired but I still have to work.
The missus says that I need to do the laundry ;-)

Well that's it for me for now.

Stan

Hi,

Thanks for the revised schematic.
Would there be any advantage in adding schottky diodes  in front of the
NPN/PNP transistor drivers to speed up the waveform?

Cheers,

ASndy
----- Original Message -----
From: <mbauer@...>
To: <MEG_builders@yahoogroups.com>
Sent: Thursday, June 28, 2001 5:45 AM
Subject: [MEG_builders] Re: Function generator for pulses...


> A purchased function generator will certainly make experimenting with
> the input waveforms easier.  The waveform frequency and pulse width is
> important as the best MEG output can be tweaked in with a few knobs.
>
> For those who don't have access to a piece of test equipment like
> that, I built a MEG driver board with variable pulse width and
> frequency controls out of the basic circuit that JLN used.  The
> controls are not calibrated, but since I monitor multiple test points
> on different oscilloscopes, I could measure the pulse parameters
> directly.  The circuit I built is at
>
> http://www.execpc.com/~mbauer/MEGcontrol.jpg
>
> The output stage of this control board could also be cloned to buffer
> the output stage of the function generator.  Parts are available at
> digikey.com
>
> Mike.
>
>
>
>
>
> --- In MEG_builders@y..., Vencislav <vencib@y...> wrote:
> > Hi,
> >
> > as a first step, I bouth Wavetek 20Mhz Pulse/Function Generator
> > which will play a role as - a pulse generator, of course.
> >
> > The reason I want to use function generator, is to see
> > how MEG and his output will behave under different wave forms...
> >
> > Now I will need amplifier, to amplify signals from function
> > generator, before sending then to the actuator (input coil).
> > Or I will just build simple one with one Mosfet and two transistors.
> >
> >
> > Attached to the message is image of the Wavetek generator.
> >
> > Regards,
> > Vencislav
> >
> >
> > __________________________________________________
> > Do You Yahoo!?
> > Get personalized email addresses from Yahoo! Mail
> > http://personal.mail.yahoo.com/
>
>
>
>
> Main page:
>   http://groups.yahoo.com/group/MEG_builders
>
>
>   To post a message to this group, send email to
>   MEG_Builders@yahoogroups.com
>
>   To contact the moderator of this group, send email to
>   MEG_Builders-owner@yahoogroups.com
>
>   To unsubscribe from this group, send email to
>   MEG_Builders-unsubscribe@yahoogroups.com
>
>
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>

--- In MEG_builders@y..., mbauer@e... wrote:

> > A purchased function generator will certainly make ... <snip> ...
> > .... The circuit I built is at
> >
> > http://www.execpc.com/~mbauer/MEGcontrol.jpg ... <snip>

.... to Which Andrew king replied in part ....

> Thanks for the revised schematic.
> Would there be any advantage in adding schottky diodes
> in front of the NPN/PNP transistor drivers to speed up the
> waveform?

If Andrew is referring to your totem pole pre-driver xistor circuit,
I must agree that it is a really nice touch and, as I think you said
that you found from your experiments, that this improved turn-on and
turn-off times.  I too observed from my experiments that small turn
on and turn off times are important if you want an efficiently
switched meg and I considered a totem driver too but didn't have the
guts, suspecting that there could be situations where both the 2n2222
and 2n2907 could be on at the same time causing their destruction so
I settled for just the 2n2222 pull down and used a rather low 1k
resistor for a hard pull up which not only gave me fast Ton & Toff
times for MOSFET driver transistors but also for the bipolar xistors
that I ultimately had to resort to after zapping eight MOSFETS in
rapid order.

ANYWAY, LOVE THE TOTEM PRE-DRIVER CIRCUIT and I think I'll ncorporate
it in my design because it has to make for fast very efficient
switching.

If you have driver MOSFET failures, you might want to review my
schematic in the files section for a couple of little add-in circuits
that for me have essentially eliminated driver xistor failures. One
circuit current limits the drivers and the other circuit that
prevents the high forward voltage inductive kicks that can show up in
the input coils from breaking over D-S of the MOSFETS or C-B-E
junctions of bipolars.  Jon Flickinger came up with the current
limiting idea before I did.  You might want to review his file in the
files section for some more helpful ideas as IMHO (In My Humble
Opinion) and in my experience, his observations are on the money.

Also, upon visiting your site and reviewing your MEG, I see that you
used a milling machine to rework some ferrite cores.  I have been
using a Dremel with a tungsten carbide end mill to do some touch up
stuff to my ferrite core and find that it is slow sledding.  Do you
have any hints for me re: this?

Also, although you may have told us at your web site what kind of
COP's you got, I don't recall so would you tell me what they were?
The best I have done so far with real in-phase currents and voltages
(real power vs. apparent power) is ~ 0.7

Thanks,

Stan

>
> If you have driver MOSFET failures, you might want to review my
> schematic in the files section for a couple of little add-in
circuits
> that for me have essentially eliminated driver xistor failures. One
> circuit current limits the drivers and the other circuit that
> prevents the high forward voltage inductive kicks that can show up
in
> the input coils from breaking over D-S of the MOSFETS or C-B-E
> junctions of bipolars.  Jon Flickinger came up with the current
> limiting idea before I did.  You might want to review his file in
the
> files section for some more helpful ideas as IMHO (In My Humble
> Opinion) and in my experience, his observations are on the money.
>

Though I haven't had any driver transistor failures yet, I do see
dangerous return voltages on the scope when things are tweaked to peak
output.  If I detune things a bit (frequency, pulse width)I get less
kickback, but also less output.  That's defeating the whole purpose.
Yes, I should do something about it before I blow something.  But I
always order spare parts ahead of time for the unpredicatble.


> Also, upon visiting your site and reviewing your MEG, I see that you
> used a milling machine to rework some ferrite cores.  I have been
> using a Dremel with a tungsten carbide end mill to do some touch up
> stuff to my ferrite core and find that it is slow sledding.  Do you
> have any hints for me re: this?
>

Ceramic and ferrite cores are like glass.  If you treat them like that
then normal glassworking techniques work.  Very slow speeds, small
working pressures, and coolant.  Time is your friend.  Don't
want to overheat the material or it's properties change. Yes, it is
slow sledding, but once they are formed at the factory, we're stuck
with it.

Drilling holes can be enhanced with a slurry of polishing compound
around the drill bit.  Just make a small dam around the drill bit with
some clay or putty, add water (or alcohol) and polishing powder.  Work
slow, and take even more time while punching through.  I haven't tried
the slurry with a mill, but it should work with that too.  Real slow.

> Also, although you may have told us at your web site what kind of
> COP's you got, I don't recall so would you tell me what they were?
> The best I have done so far with real in-phase currents and voltages
> (real power vs. apparent power) is ~ 0.7
>

I never reached COP > 1.  I learned that my cores and magnets are not
matched in properties to work at the knee of the BH curve.  NIB
magnets were way oversaturating the ferrite and silicon steel cores I
used. A simple test is to take a paperclip and probe around the
magnets and core to look for flux leakage.  It will lightly point in
the direction the flux is leaking.  If there is very much leakage
detected, then the core is in saturation.

I wound many coils of different turns ratios, and several coils had
taps every so often so I could easily try different combinations.  It
was nice to have a variable freq/width controller since there is a
definite frequency peak that can vary somewhat depending on coil
configurations.

  I only saw some improvement in outout between magnets out of the core
to magnets in the core.  Magnets out - no magentic switching action,
magnets in - saturation all the time.  My next step would be a new
silicon steel core and Alinco magnets for a better match.  The cross
sectional area of the core must be enough to support the magnetizing
field of the magnet stack.

I think an improvement might be had by finding a good match between
the operating frequency, coil inductance/resistance, and core domain
flipping time constants.  The idea is to get the domains to be
oscillating smoothly (sine wave) and without dead time between pulses.

The cross flux experiments I performed didn't work I assume because of
the type of silicon steel cores I had.  I just used standard
transformer steel, but may work better with a core that has a
different BH curve in crosswise directions.  The idea was to stop the
circulating main flux by applying a small switching flux perpendicular
to the main flux.  I think the idea has merit, but I couldn't prove it
with my setup.

Always new ideas to try.  Just need more time to get to them.

Good Luck, Mike.

Hello Everyone:

I'm new to this new egroup.  Some of you may know me on JLNLabs as Michael
Couch.  In here I'll be whoever my yahoo mail says I am.  It should be at
the bottom of this email I guess.

I have two suggestions and I will make them one at a time.  I am a theorist
at the moment not an experimentor because of lack of facilities and because
I suck at component electronics (especially soldering).

Here is suggestion number one from Michael Couch 06/29/2001 under formal
non-disclosure for common research purposes.  I would appreciate it if my
name were associated with this idea whether it turns out to be good or bad.
I'm so tired of not getting any recognition for my contributions.

Suggestion NO. 1:  Replace the neodium magnet in the middle of the MEG with
a spherical one and wrap one coil around its middle for control.  Then
switch polarities on this coil to flip-flop the poles of the spherical
magnet.  It has been reported that spherical magnets have a very easily
switchable polarity.  The other two control coils can then be used as output
coils too, or replaced with larger output coils.

Please let me know if anyone tries this and how it goes.  Wish I had the
facilities and abilities to try this myself.

Michael Couch
mc@...



_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com

Greetings, Fellow Experimenters,

While I have not yet done much, I thought I would throw
my 2cents into the ring here for anyone interested.

This link will take you to my MEG web pages:

http://www.flyinghouse.com/creator/science/meg/meg.html

There you will find some reports and pictures of a few
preliminary experiments I've done, along with a page
describing some more speculative thinking about why
nonlinear loads seem to be required to demonstrate
overunity.

Feedback, comments, suggestions always welcome.

Thanks,
-Dann
============================================================
Dann McCreary http://flyinghouse.com creator@...
============================================================
"Since you are precious in My sight, Since you are honored
  and I love you,  I will give other men in  your place and
  other peoples in exchange for your life." - Isaiah 43
============================================================

Hi Dann,


I was looking at that page, and first thing I notice
is that control coil is too wide, make it more narrow.
It will be more narrow, but use the same length of wire.
This is to prevent magnetic flux from going round the
control coil and to end up to the same half of iron core.



Regards,
Vencislav



--- In MEG_builders@y..., creator@f... wrote:
> Greetings, Fellow Experimenters,
>
> While I have not yet done much, I thought I would throw
> my 2cents into the ring here for anyone interested.
>
> This link will take you to my MEG web pages:
>
> http://www.flyinghouse.com/creator/science/meg/meg.html
>
> There you will find some reports and pictures of a few
> preliminary experiments I've done, along with a page
> describing some more speculative thinking about why
> nonlinear loads seem to be required to demonstrate
> overunity.
>
> Feedback, comments, suggestions always welcome.
>
> Thanks,
> -Dann
> ============================================================
> Dann McCreary http://flyinghouse.com creator@f...
> ============================================================
> "Since you are precious in My sight, Since you are honored
>  and I love you,  I will give other men in  your place and
>  other peoples in exchange for your life." - Isaiah 43
> ============================================================

--- In MEG_builders@y..., "Michael Couch" <cmichael_couch@h...> wrote:
> <snip>
> I have two suggestions <snip>
> Suggestion NO. 1:  Replace the neodium magnet in the middle of the
> MEG with a spherical one <snip>
> It has been reported that spherical magnets have a very easily
> switchable polarity <snip>

Where would one get a sperical magnet and which one or what
specifications would you recommend?

Stan

--- In MEG_builders@y..., "Vencislav" <vencib@y...> wrote:
> <snip>> Stan, I have question about the magnet(s)you are using
> for your current MEG, what type of magnet it is? <snip>

First off, my apologies for being so long in answering your post ...

My "magnet" usually is a stack of ceramic (ferrite?) magnets from
Radio Shack and are rather feeble.  I have also coupled a very
powerful loudspeaker magnet to my MEG core which dramatically
increased the steady state flux in the core but gave no improvements
in my COP test results.

IMHO (In My Humble Opinion) my first experiments showed me that an OU
MEG wasn't going to be an easy thing for me and that I was going to,
among other things, have to learn a whole lot more about magnetics.
At this phase of my experiments, I am fairly comfortable that I have
a decent handle on control circuit and coil requirements and so I am
agonizing on what the next phase of my experiments should be.  My
current thinking is that I should buy a Teslameter and perhaps a few
good magnets like Naudin is using and then do some quickie tests and
observations re: flux leakage per Nuadin's very recent post, figure
out what magnet size to use, etc., etc.   In other words, begin to
understand and work with the magnetics of the MEG.

I have found an inexpensive combination Tesla/Gauss/EMFmeter at

http://www.electrosmog.com/

for about $50 and am seriously considering ordering this very soon.

In addition to being skeptical about the magnets I have chosen, I am
beginning to think that I am going to need a better core than the
ceramic/ferrite TV flyback core that I am using now because I know
for sure that there is a lot of flux leakage with this core.

Anyway, I hope I have answered your question.

Stan

P.S.  To all reading this, please feel free to comment ... especially
about parameters for a Testla or Gauss meter.

Is this not available on the net? can't seem to find it anyware.....

Foundations of Physics Letters, Vol. 14, No. 1, 2001 - "Explanation of the
Motionless Electromagnetic Generator with O(3) Electrodynamics

Frank

--- In MEG_builders@y..., "Frank Roed" <frroed@o...> wrote:
> Is this not available on the net? can't seem to find it anyware.....
>
> Foundations of Physics Letters, Vol. 14, No. 1, 2001 - "Explanation
of the Motionless Electromagnetic Generator with O(3) Electrodynamics
>
> Frank

Don't know if this will be much help but ... using hot bot search
engine, found this site for a exact phrase search for "Foundations of
Physics Letters".

http://www.nd.edu/~ndlibs/eresources/gateway/ejour/foundations_of_phys
ics_letters.html

It apparently is a site owned by Notre Dame University.  I tried
several search tools for this site but was unable to get your exact
title possibly because this may be a restricted-to-student/etc. site.
Anyway, thot this mite help.

Stan

----- Original Message -----

From: Stan Mayer

To: MEG_builders@yahoogroups.com

Sent: Monday, July 02, 2001 12:12 AM

Subject: [MEG_builders] Re: Foundations of Physics Letters, Vol. 14, No. 1, 2001

--- In MEG_builders@y..., "Frank Roed" <frroed@o...> wrote:
> Is this not available on the net? can't seem to find it anyware.....
>
> Foundations of Physics Letters, Vol. 14, No. 1, 2001 - "Explanation
of the Motionless Electromagnetic Generator with O(3) Electrodynamics
>
> Frank

Don't know if this will be much help but ... using hot bot search
engine, found this site for a exact phrase search for "Foundations of
Physics Letters".

http://www.nd.edu/~ndlibs/eresources/gateway/ejour/foundations_of_phys
ics_letters.html

It apparently is a site owned by Notre Dame University.  I tried
several search tools for this site but was unable to get your exact
title possibly because this may be a restricted-to-student/etc. site.
Anyway, thot this mite help.

Stan




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In Naudin's post of "For the MEG explorers", there is a typo in the
web address for getting info on conditioning resistors.  The address
should read ....

http://jnaudin.free.fr/html/negres.htm

Stan

Stan:

wondermagnets.com I think is the URL.  They have spherical magnets of
neodium.

They aren't too expensive.  Order one of each and then use an old B&W TV to
view their magnetic flux fields and put the one in that you think would have
all its flux absorbed by the lamination.  You hold the magnet to the face of
the TV screen while it is on (snow I guess).  White backgrounds are good for
this and you can use an old Computer monitor that you don't mind damaging
(screen has to be degaused to work properly after doing this).

After you try this I have a couple other suggestions.

Michael Couch
mc@...
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Stan:

When you go to test the spherical magnet with one coil, why not use a simple
relaly or reed switch to toggle back and forth between polarities just to
see what you get without all that circuitry first?

Michael Couch
mc@...
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com

--- In MEG_builders@y..., "Michael Couch" <cmichael_couch@h...> wrote:
> Stan:
>
> When you go to test the spherical magnet with one coil <snip>

Michael,

An interesting idea that I may be willing to try just on your word
for it that spherical mags can provide polarity switching gain.
While it might seem to be easy to insert one of the 1/2" dia. sphere
magnets into the magnet section of a MEG, for me this isn't so easy
as I will have to create bridging/connecting pieces from very hard
ceramic ferrite stock.

I will consider trying this but probably not right away because of
the difficulty for me in machining ceramic ferrite.  Also, could you
tell me where you learned about this easy polarity switching effect?

Perhaps there are others out there that would be willing to try your
idea right now.  Volunteers?

Best regards,

Stan

Stan:

Item #28 $7.50 ea. 3/4" Sperical Magnet from Wondermagnets.com no minimum
order.

Michael Couch
mc@...
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com

Stan:

Use any lamination core you like.  We'll probably learn a lot from it.

I wish I could remember where I read that spherical magnets change polarity
very easily.  But I read it on the net.  Maybe from a link off
wondermagnets.com.  The 3/4" shperical is only $7.50 item no. #28 I think it
was.

Michael Couch
mc@...
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com

Wow:

I tried to access...

solectria.com from you MEG page

from my library and it threw me out of microsoft explorer, twice.

I'm trying not to be a conspiracy theory nut but....

that was wierd.  I'll try again after I send this notice.

Michael Couch
mc@...
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com

Almost always they can be had via interlibrary
photocopy requests...not fast but quicker than
never- ever seeing them posted on the internet.
Where you can find articles they want like $15
bucks ( charging a lot puts the << valuable >>
into << intellectual property. >>

Just to let you all know that I am gradually adding my MEG experiment
notes to the files section.  My notes are diary type notes made
during my MEG construction and since it is in the form of a diary, it
is kind of like walking around naked to the world.

Anyway, the notes pages (.JPG files) can be found in the files
section stored in a folder of a folder of the "Subscribers MEGs"
folder.   If you view them on-line you should be aware that they will
probably display as two-screen wide and tall images so be sure to
scroll around the entire screen to see the full page.  The reason for
this is that in order to assure decent graphics resolution and
readability for the incorporated sketches and schematics, I had to
create these pages in 150 PPI resolution rather than the standard 72
PPI.  Of course, if you find them difficult to read on-line, you can
download them and view them off-line in an image scalable .JPG
viewing program.

It may be a day or two before I get all the files on so please be
patient.

Best,

Stan