Pulsed DC Transformer with Embedded Magnets

[ltseung888]

Put an ammeter in series with your toroid, a resistor of some sort and a signal generator.
Set the sig-gen to 0.
Wind the sig-gen up whilst watching the ammeter.
You should notice the needle go down, pause at its minimum, and as the sig-gen
is increased further, the needle will increase.

The frequency at the minimum will be the resonant frequency for that LR circuit, noting
that the figure depends on the value of your safety resistor. You will need to change
this resistor for something nearer in value to the resistance of your actual circuit, and
then repeat the performance. Have a glance at this:
http://www.allaboutcircuits.com/vol_2/chpt_6/5.html
Paul-r

Dear Paul-R,

Thank you for your excellent input.  I also found a similar technique when applied to my Joule Thief type circuits.  I used the signal generator in place of the battery.  The brightness of the LED varied with frequency.  There were "sweet spots" showing characteristic resonance behavior.  At certain frequencies, the LED was much brighter.  The LED turned dimmer when I changed the frequency below or above that certain frequency.

I believe I can get my Joule thief circuits to demonstrate overunity.  The Lead-out Energy theory predicts that.  The bright LED spots seem to have lower input power (lower voltage and current) while the output power (both voltage and current) increased.  I shall get some better equipment to confirm the above results.

[Paul-R]

I think we should avoid digital meters.

Don't forget that the ammeter has a resistance which should be
added in.

It might be better to remove the ammeter in series and instead
measure the voltage across the resistor.

(There is such a thing as a Grid Dip Oscillator but I have no idea
how it works).

[Paul-R]

Don't forget that this technique works for the driving coil but not the others.
The other coils on the toroid, containing probably R elements along with
I and C ingredients, will need to be tuned to the frequency already established
by having their R, and/or I and/or C varied.

[ltseung888]

请把下文上ç½'在å'表. (æˆ'å·²å'表在天涯问ç­")‏
From:    王沈河 (wshsdfm200808@126.com)
Sent:   Wed 6/02/10 5:57 AM
To:    Lawrence Tseung

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The above is a request from Mr. Wang Shen He.  Those interested should email him directly.  He is answering question in Chinese at the Chinese language forum 天涯问ç­"

[ltseung888]

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王沈河 
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Email:wshsdfm200808@126.com

The above is from Mr. Wang Shen He.  Please contact him via phone or email directly.