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[gravityblock]

If you have an L meter could you please measure the inductance between these points.

I would also like to know the inductance on the different points as Broli suggested.  A few pages back, I posted information on intrinsic inductance and I think it may have a role, http://www.overunity.com/index.php?topic=8411.msg244635#msg244635


Thanks,


GB

[Omnibus]

@broli and @gravityblock,

Unfortunately, I don't have an inductance meter. However, I don't think inductance is an issue since the integral of inductance over time for a full period is zero. The real issue here is the parasitic capacitance which has been proposed as a candidate mechanism to explain away the OU effect. It is a conjecture, there's no direct experimental proof that parasitic capacitance is the culprit but also there's no way to directly prove otherwise. Therefore, indirect ways are to be sought to exclude it as a possibility. We already have two experiments in that respect. The same wire the primary coil is made of is rewound over the same secondary coil and that yields strong underunity. That's the first one. The second one is the just discussed disappearance of the OU when one of the terminals is the midpoint (Black) terminal. It seems these two experiments should be experiencing parasitic capacitance of the same order as the original experiment and yet they show no OU. Now that the metal core is gone and the OU is still there in what remains from the original construction, I'd like to remove just the secondary coil and have only the primary the way it's wound in the factory and try it. Will have to see how to do it.

[broli]

@broli and @gravityblock,

Unfortunately, I don't have an inductance meter. However, I don't think inductance is an issue since the integral of inductance over time for a full period is zero. The real issue here is the parasitic capacitance which has been proposed as a candidate mechanism to explain away the OU effect. It is a conjecture, there's no direct experimental proof that parasitic capacitance is the culprit but also there's no way to directly prove otherwise. Therefore, indirect ways are to be sought to exclude it as a possibility. We already have two experiments in that respect. The same wire the primary coil is made of is rewound over the same secondary coil and that yields strong underunity. That's the first one. The second one is the just discussed disappearance of the OU when one of the terminals is the midpoint (Black) terminal. It seems these two experiments should be experiencing parasitic capacitance of the same order as the original experiment and yet they show no OU. Now that the metal core is gone and the OU is still there in what remains from the original construction, I'd like to remove just the secondary coil and have only the primary the way it's wound in the factory and try it. Will have to see how to do it.

I really recommend an L meter. You are quite well equipped and this would be a dirt cheap addition.

And as gravityblock pointed out this anomaly might also a function of wire thickness and length. Skin effect, standing waves in wire, self capacitance...can all be contributing factors.

[teslaalset]

The real issue here is the parasitic capacitance which has been proposed as a candidate mechanism to explain away the OU effect. It is a conjecture, there's no direct experimental proof that parasitic capacitance is the culprit but also there's no way to directly prove otherwise.

This is exactly the reason why I made a remark about the leading current.

Regarding inductance meters: they are only useful when measuring air coils.
And even then it's just an indicated value, since the inductance is measured at only one specific (unknown) frequency.
If one uses metal cores, the indication is very unreliable due to the non linearity of the core materials.

[exnihiloest]

It has already been stated that any core losses taken into account will make it more OU. 
...

Wrong statement. It would be true if only losses were measured.
Unfortunately in the measured losses there is a part which is useful work because the measurement protocol can't distinguish both (Rc is not accessible ref. http://upload.wikimedia.org/wikipedia/commons/d/d1/Transformer_equivalent_circuit.svg).