Joule Thief

[Mk1]

@jadaro

Your 2 inductor is what i call scalar  . Before making improvement at least understand what you got.

has simple has you make it sound please do make it work on its own.

And yes you cant really ad more pickup coil , good how hard is it to understand there is the same current in all the coils. more coils more current , but not more then in the 2 primary .

[jeanna]

that mean ferrites coefficient of coupling is at it highest when at ~550 kHz.
lower frequencies then 100k or higher then 1 MHz make the coefficient of coupling drop drastically.
it is the coefficient of coupling that determine a transformer efficiency

at what frequency is your jt working ?

That is the big question now, isn't it?

BTW this is not a simple transformer.
If there were not the inverter function going on simultaneously there could be no transformer action. I know everyone knows this, yet it seems over n over to be ignored.

We have a transformer and the ratio of turns sec to primary is what determines the output. But we also have an inverter.

This is a mysterious inverter. It has the frequency based on all the same things the transformer does.

This is the reason it is necessary to tune it. And the reason not all of these will tune alike.

Thanks for your help thinking about the varnish. I think I will skip it. Since it is no use to scrape off the paint just to know the resistance of the toroid since it won't save me any tuning time.

Oh well. It is fun to do. I don't need to save effort.

thank you,

jeanna

[jadaro2600]

@jadaro

Your 2 inductor is what i call scalar  . Before making improvement at least understand what you got.

has simple has you make it sound please do make it work on its own.

And yes you cant really ad more pickup coil , good how hard is it to understand there is the same current in all the coils. more coils more current , but not more then in the 2 primary .

I respect your work and your improvements to the subject at hand, but how am I supposed to, as you put it "understand what you got", as defined by you --you call it 'scalar', ..and I suppose I'm to understand that what I've got is the definition of 'scalar' - at least in your mind?  Could you elaborate please?

If there's more out than in, then simply make two identical devices, and power one with the battery and the other with the output from the first, if you get an even higher output from the first then you're onto something.

...otherwise, it's just a voltage anomaly - the transformer action is mucking up what's measurable with respect to 'work that can be done'.

@jeanna, and all,
I'm going to post these few more picture of the Helmholtz setup and then I'm going to leave it alone for a while.  This includes four 'orientations' where different voltage readings are taken from diode rectified third and fourth inductors.

In each, there is a small disk capacitor and a large rectangular capacitor, - the large is off the main, the small disk capacitors are independent of the circuit - acting as pickup coils, this is a 1kv 200pF capacitor and one or two 1n4148 switching diodes.  The numbers aren't impressive - there's definitely not any more out than in.

Smaller number is /are the pickup coil(s) - so by all standards and practices here - it's crap for a setup - but it may be relevant to people attempting resonant circuits with inductor arrays ( or what not ).

Image 1:75v + 3v
Image 2:75v + 13v
Image 3:79v + 11.7v  *ceramic disk capacitor not show in picture, oops
Image 4: 75v + 7.5v + 7v

Since this isn't a strategic placement thing, and because most Helmholtz coils don't conduct at 90 degrees, this is somewhat strange to me - and I'll leave it at that.

[Mk1]

@jadoro

I just don't see what you are doing , in this tread , since it has no toroid or jt circuit.

http://www.overunity.com/index.php?topic=6763.0;topicseen    that is one

Scalar wave , google it.

Even if its interesting , it deserve its tread .

By the way , if you don't feedback the right voltage it not going to work .

But yes i don't like saying there is more out then in , because people get dumb , when that happens .
I don't need to prove anything to anyone but my self , its all i need .

[hazens1]

@jadaro
Performs quite well for a High Permiability core. I have measured as high as 104volts rectified from a 20ma battery draw on a single rechargeable using a 1k ohm resistor to the base. I got the core from Elec-Goldmine.  http://www.goldmine-elec-products.com/prodinfo.asp?number=G16332  I wound that using some new wire from Go Brushless. It's called newbie wire, because you can get the same gauge in different colors to distinguish the different coils.  http://www.gobrushless.com/shop/index.php?app=ccp0&ns=catshow&ref=magnet+wire+newbie  As far as what works best, high or low permiability? I don't think it matters as long as you match the frequency of the circuit to the material the toroid is made of.

The Green coil goes from the Positive of the battery to the Resistor which goes to the Base of the Transistor. The Red coil goes from the Positive to the Collector of the Transistor. The Gold coil is where the good stuff is 


TYGER

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