Thane Heins Perepiteia.

[Groundloop]

Thane,

I will do your test tomorrow. Late night now, must sleep.

@gyulasun,

The core is a AMCC-320 PowerLite C-core.

[EDIT] The Neo magnet is so strong that I will probably rip the core in small fragments when I remove the magnet.
           Metglass cores is made out of a long tape. The tape is so brittle that normal handeling can damage the core.

Groundloop.

[slapper]

We've got Fleet Farm stores in our area that sell electric fence cable.

Soft steel and insulated too.

I've been testing some insulated 12 gauge in one of my tpu's as a collector.

Take care.

nap

[aether22]

ââ,¬Å"Do fluxes cancel or add?ââ,¬Â
If they are additive then test #2 should provide a higher output power
than test # 1.

You are of course welcome to your own opinion but IMO finding a higher power in test 2 than test 1 doesn't indicate that the fluxes don't cancel.

2 things make this occur, one is the fact that if you have one of the coils shorted it will resist the primaries changing flux and the primary flux will be diverted into the other open leg.

The other thing and this could admittedly be an issue of semantics in part but the flux from the 2 secondaries is identical and opposite if everything is setup correctly.

This means that unlike in a normal transformer where the secondary cancels out the primaries magnetic flux (stopping and further induction) they cancel out each others flux meaning that no matter how much current passes through them they can't dent the primaries emf and so more turns will indeed mean more power. (though so will lower resistance)

Now you could look at this in isolation, you could look at it as each secondary helping the other but if you bother to consider the self induction each coil has on it's self it the exactly equal and opposite to the effect the other coil has.

So while this is indeed semantics as you are not wrong about the secondaries amplifying themselves it seems more accurate to say that the net field from the 2 secondary coils is 0 and hence the primary emf can not be countered by anything the secondaries do.

Sorry, just had to reiterate that one last time.

What we need to establish is if your device is capable of providing real power or just currentless voltages.
You said you found little current if the loads resistance was less than 1kohm? That is a concern.

[Thaelin]

Hi Thane:
   Some time ago, I wound a torrid core from coated iron wire about six inches o.d. Would testing your setup on this be of any value for the group. The core has no use at this time and I can de-wind it for the purpose. Let me know what you think.

thaelin

[BasementExperiments]

Hi, I hope this isn't a stupid question but here goes.

Why create the secondaries on a circular torroid?

Would it be much less efficient if they were parrallel then connected at both ends like a square? So basically you'd have a square with the primary in the center.

One other question, not sure if anyone has tried this yet. What of the secondary core had  4, 6 or even 8 different coils (isolated like the current 2) does it share the same effect?