The Gabriel Device, possible COP=8

[wayne49s]

Shouldn't that decimal be a comma?! 
...

Germany is one of those countries that reverses the period and decimal.

Is the impact of the resistivity limited to only eddy currents and heating? I was thinking about the outer shell, which acts as one shorted continuous conductor.

[Feynman]

If this is real and you decide to instrument correctly then it is important.

If you don’t instrument it correctly then it's no good and most likely
you guys are just fooling yourselves by relying on readings caused by
instrumentation that can't handle the signals.

Absolutely.  How do you think that David's instrumentation introduced error?  I mean , this is pretty straightforward.  120VAC at 60hz, no?  He's using Kill-A-Watt meters.  He either (A) telling the truth,( B) made a measurement error  or C) is being dishonest.  There are only 3 possibilities.  I think it's (A) or (B).

I mean the holy grail is closed loop, but you have to start somewhere and follow up on promising leads.

A raw transformer and Schottky diode 110volt to 12Volt dc power supply
makes it easy to measure filtered power with two DVM’s simultaneously
and the 12volt to 110volt inverter will put any PF power factor and signal
anomalies into the loss column so you can show that you still have energy
gain.

(Also moving clip leads is all that it takes to loop the device).

Thanks, I like this idea. 

Using the time delay derived from the DC filter capacitor and two 110
variacs variable autotransformers you can efficiently split the power out
of the inverter up between power going to a dummy load and the power
going to the input of your circuit. This stops any voltage overloading. 
Instead of variacs you can also use incandescent light dimmers except
that these add there own harmonic signal hash anomalies to the situation
but they will still factor the average power. The toaster would make an
excellent dummy load since it is purely resistive.

Also great info, thanks.  Yeah I thought the same thing, since toaster is essentially just a giant resistor.

Light dimmers need a transformer that has a load, because pure
inductance doesn't work.

Okay.

And a 1:1 110V transformer can filter the pulse power draw from your circuit.

Can you explain what you mean here a different way? I don't understand.

Look I have criticized your instrumentation and methods â€" why can’t
you either do it this way or criticize what I am describing. I mean I can
understand…As soon as you do it correctly your instrumentation errors
are going to disappear.

Hmm... not sure I understand...Mark , have you been talking to David on this device prior to today?  The first I heard about this was yesterday,  and I've decided to take the plunge since I need these materials (toroids of varying permeability/resistivity) anyway.  Not sure who you are referring to here.

I haven't done any experiment on this at all; I've ordered materials.  One thing to keep in mind is that often people are limited by their knowledge and experience, as well as material and financial resources...

If you don’t instrument it correctly then it's no good and most likely
you guys are just fooling yourselves by relying on readings caused by
instrumentation that can't handle the signals

Can you elaborate on this thought? 

The output power splitting is a manual setting of the
two variacs or two lamp dimmers which assume that
the gain of the device remains relatively constant.

This is how the input current control circuitry would actually
work except in automatic mode rather than manual mode.

I'll have to study what you've posted more, as it's beyond my experience, but I think you have great ideas for controlling a device that runs with gain.

See, what we do at each stage is we move in the direction
that we are going and want to go to build a product. Just wait
to design the regulating circuitry for a demand (user variable)
load.

Agreed.  Hopefully we'll be able to apply your ideas to a solid-state power device running with gain by the end of 2011, whether it's this device or another one!  Open-source...

Cheers,
Feynman

[twinbeard]

Germany is one of those countries that reverses the period and decimal.

Is the impact of the resistivity limited to only eddy currents and heating? I was thinking about the outer shell, which acts as one shorted continuous conductor.

If heat due to eddy currents is an issue in this device, in might be overcome with a material that does not conduct electricity, and hence can have no eddy currents, like magnetite;)

[Feynman]

Germany is one of those countries that reverses the period and decimal.

That explains it, thanks.  So that means Nanoperm is one of highest magnetically permeable materials in existence.

Is the impact of the resistivity limited to only eddy currents and heating? I was thinking about the outer shell, which acts as one shorted continuous conductor.

Well I'm just sort of thinking out loud on here, I have no idea as for the impact of resistivity on the operation of this device.  The resistivity of the outer vs inner core might be critical, or it might be irrelevant. Normally , yeah, I think it's major impact is on eddy currents.

Eddy Current Loss

The induction of eddy currents within the core causes a resistive loss. The higher the resistance of the core material the lower the loss. Lamination of the core material can reduce eddy current loss, and also making the core of a nonconductive magnetic material like ferrite.

...

Unfortunately , due to the electrical conductivity of [soft iron], at AC frequencies a bulk block or rod of soft iron can often suffer from large eddy currents circulating within it that waste energy and cause undesirable heating of the iron.

Because iron is a relatively good conductor, it cannot be used in bulk form with a rapidly changing field, such as in a transformer, as intense eddy currents would appear due to the magnetic field, resulting in huge losses (this is used in induction heating).

source:
http://en.wikipedia.org/wiki/Magnetic_core

[popolibero]

Its cold rolled steel, I'm trying to get L&S to find CRGO steel to increase the tesla rating in the primary, I wish we could make it out of that graphene stuff but thats a long long way off..

Mav, sorry for asking again,

if it's rolled steel it most likely is not magnetic, for instance stainless steel is absolutely NON magnetic, so my question is does a magnet stick to the steel donut? (easiest way to find out)

If it actually is not magnetic than even a wood donut would do. Anything that keeps the primary winding at a certain distance from the secondary.

Mario