Thane Heins Perepiteia.

[aether22]

Thane, let's have another crack at that question.

What I want to establish is that under your tests ohms law seemed to work out so if you halved the resistance did the current double? (or to put it another, did the voltage remain approximatly the same over the load)

In part I'm asking because groundloops results would indicate the answer is no.

Because if there is a sudden loss of power once a certain current is pulled that would both be anomlious and highly undesirible.

So did any experiments you conducted give you an apparent answer? For instance if you didn't test it as described above did you at least notice the signs of significant current when the coils were shorted?

Thanks

[Groundloop]

Thane,

No, there is not much room left on my toroid to add more turns, as you can see from the image I posted.
I guess I can add some few 300 to 600 turns but it will a tight fit. There is hardly any room left for the
center coil. I think I will keep the current configuration and test some more before adding any new turns.
I'm also expecting others on this forum to start replicating. I think we can get faster results with more people
testing your system.

Groundloop.

[Heinstein]

Thane,

No, there is not much room left on my toroid to add more turns, as you can see from the image I posted.
I guess I can add some few 300 to 600 turns but it will a tight fit. There is hardly any room left for the
center coil. I think I will keep the current configuration and test some more before adding any new turns.
I'm also expecting others on this forum to start replicating. I think we can get faster results with more people
testing your system.

Groundloop.

Dear Groundloop,

There is no shame in admitting that winding toroids by hand is just nutty.

Thane

[hartiberlin]

Hi Groundloop,
well done so far.
Yes, please keep the core as it is in this moment and first try to measure it with a few tests.
Do you have a 2 channel scope ?
Please pull first the input coil out and make sure, that your 2 parallel bifilar winding is hooked up in wiring correctly like the Tesla flat coil style. you can test it,so the fields are not bucking (canceling), but adding with trying to attract some metal, when you apply some DC supply.
If this is verified, that you have the right wiring, please put it into the core again and be sure to have the 2 output coils in series or in parallel, but with the right polarity, so the output voltage does not cancel each other.
For this step itis helpfull to use a two channel scope, so you can exactly see the polarities of the coil voltages. Then you can also check the polarity conditions of the input coil versus the output coils. Be sure not to press the invert button of one of the scope input channels , so you dont mix up the polarities, but it seems you are a pro and know about this. .
Just add enough iron pieces into your input coil core, so you can see the voltage come out at the output coils. This way you setup a working point on the BH curve of the main output core. Try not to saturate the core too much, otherwise the flux will go back to the input core.
Many thanks in advance and looking forward to your test results.
Regards, Stefan.

[Heinstein]

Thane, let's have another crack at that question.
What I want to establish is that under your tests ohms law seemed to work out so if you halved the resistance did the current double? (or to put it another, did the voltage remain approximatly the same over the load)

In part I'm asking because groundloops results would indicate the answer is no.

Because if there is a sudden loss of power once a certain current is pulled that would both be anomlious and highly undesirible.

So did any experiments you conducted give you an apparent answer? For instance if you didn't test it as described above did you at least notice the signs of significant current when the coils were shorted?

Thanks

Dear aether22,

I never measured current only voltage across the load.
All I wanted to focus on was an increase in voltage across the load with an increase in secondary turns ? with NO increase in primary power.

Groundloops results are not complete from my perspective yet?

I find some of your questions to be ambiguous ? so I need you to be a little more specific please?

?did you at least notice the signs of significant current when the coils were shorted??

If I am assuming PRIMARY CURRENT here with this question ? the answer is NO.
A good way to test the ?isolated? primary is to short out both secondaries.

"sudden loss of power once a certain current is pulled that would both be anomlious and highly undesirible".

Maybe yes maybe no - if the transformer is over unity great!
If every transformer has to be built to supply only one load at a time who cares - it's over unity?

I hope I did a good job answering your question(s)?
Thane