Hi Ken,

On a third build-up of this type of test set-up,
I measured the leakage flux around the magnet stack and
especially near the transformer-laminations used to make
the magnet stack fit tightly inside the AMCC core. Placing
a gaussmeter probe against the edge of the transformer
laminations, I measured up to 350 gauss. At the junction
of the magnet stack and the AMCC core I measured up to
145 gauss. At the surface of the output core, adjacent to
the transformer laminations I measured up to 48 gauss.
Away from that location the measured field decreased to
about 10 gauss, then increased to about 25 gauss near the
locations at top and bottom where the magnet stack contacts
the AMCC core. Outside the AMCC core, there is no
measurable magnetic field (gaussmeter resolution = 1 gauss).

I am assuming that with the low-reluctance path provided
by the nanocrystalline core, the NIB magnet stack will reach
a field strength of about 10,000 gauss (a single magnet in
air measures 4,000 gauss at its surface). Thus these
measurements are a small percentage of the total field.
The dA/dt still holds even if the A is not entirely curl-
free (B = del x A). In the event of curled A (B), there
is a transverse force by the familiar relationship of qV x B.
I am assuming that Dr. Bearden means that if there is a B
field present, the surface electrons will be driven
transverse to their propagation along the wire, thus
increasing their collisions with atoms at the surface and
reducing their velocity.

Because of your question, I conducted an experiment on
this third build-up of this configuration (yes, the
relationship of outside/interior sense coil voltage still
holds, although enhanced in this build-up because I used a
larger block of ferrite on the outside sense coil). I
placed an NIB magnet, 1/2-inch x 1-inch x 1/2-inch thick,
4,100 gauss at its surface, near the interior sense coil.
For "N" polarity of the magnet face the sense voltage of
only the interior coil decreases about two per-cent. For
the "S" polarity, the outside sense coil voltage decreases
about one per-cent and the voltage from the interior sense
coil does not change. The polarities of this magnet react
oppositely depending on which side of the output coil it
is placed. Placing either face near the outside of the
output coil and in the vicinity of the outside sense coil,
there is no discernable effect on the sense voltages.
This by itself is an interesting effect, and needs further investigation. I
repeated these tests about ten times to
be sure the effects were real and not something as simple
as a changing resonant frequency of the output coil. (N
of the magnet stack inside the AMCC core is at its top).

An e-mailer asked if this set-up isn't measuring the CEMF
of the output coil, and I replied that yes that is exactly
what is being measured. The fact that it is different for
locations on opposite sides of a core leg is the point that
is important. By classical E-M it shouldn't be. "A" is
real.

David J.

--- In MEG_builders@yahoogroups.com, "carbonprobe" <carbonprobe@y...> wrote:
> David, In the photo of your MEG there are flat pieces of metal in
> between your magnets to make the stack fit inside the core. This
> causes fringing B-fields around the core and the Aharonov-Bohm effect
> will not happen as Bearden explains.
>
> Ken