Quote from: protonmom on September 01, 2009, 06:45:01 AM
gyulasun
Thank you for the links.  However, the pics there showed the inductors to have three legs and mine only have two.  Does that mean mine are just a smaller version, or for a different purpose?  I know if I keep searching the net I will eventually come across the correct picture showing these same items I have described.  Hopefully I will also learn how to use them. 

Hi,

The third pin is an empty pin, no electrical connection is involved, only they use a more universal bobbin with three pins that is all.

All of such coils with a permanent magnet are meant for fine adjustment possibility for the coil's self-inductance, no other purpose. The current they should handle is at least from a few Amper up to 7-8 Amper, at 15.6kHz and higher (line frequency) the wire and core properties are chosen according to this requirement.

Here are some more links: http://ahtckelin.en.alibaba.com/product/244041047-209083000/Linearity_Inductor_Coil.html
http://www.litai.com/coils.htm
http://southsea.manufacturer.globalsources.com/si/6008800058425/pdtl/Choke-coil/1013510650/Choke-Coil.htm

rgds, Gyula

Hi Don,

It is good you mentioned you did not connect the end of coil 1 to the beginning of coil 2, thanks.  For me this means that your otherwise excellent meter actually oscillates somewhere with the two coils that has a coupling of a distributed capacitance only, I think this is a false operational mode for your meter...  and indicates that very high 200Henry+ self-inductance. You may agree here that is not a real value.
I have never tried testing bifilar coils with inductance meter when the two coils are not connected in any combination that has a measurable low value DC resistance i.e. wire resistances either in series or parallel.  For your case I normally use a capacitance meter.
Tonight I will try to test this, though I have a meter able to measure up to 20 Henry only (Maxwell MX-25 304).

rgds, Gyula

Quote from: dllabarre on September 01, 2009, 08:08:22 AM
EXTECH 380193 - it works fine - i've double checked it with caps, resistors and inductors.

Yes I agree with you when I connected the bifilar wires together and measured them. 
But I'm doing something that is very unorthodox here.
Do NOT connect the end of wire 1 to the beginning of wire 2.  Just connect your meter to the beginning of wire 1 and to the end of wire 2.  This shouldn't work well because the 2 wires are not connected but just try it.

DonL

Here is a circuit I was playing with last night.
I shorted the cap to discharge it.
Checked it with my digital meter and there was zero mV.
I left it on and this morning (8 hours later) when I connect my digital meter the reading went up to 2.2v then started to come down.
The meter is draining the potential so I have to make quick readings.
I need to get a mV analog meter again.  My old one died.

Any recommendations for a good analog meter that can read mV?

Yes the positive side of the battery is not connected.
It seems to be pulling the energy from the negative side of the battery.
This doesn't work if I disconnect the battery completely.
Without the battery, the potential across the capacitor slowly goes to zero.

I need to try this with a ground rod instead of the battery and maybe use larger capacitor and inductor.

DonL

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Quote from: t3t4 on August 31, 2009, 10:34:42 PM
I have a question...
Have any of you tried to marry the earth battery to the radiant energy receiver by using them in combination? If so, can you tell me, was it good or bad?
Thanks,
t3t4

@all,
I have an idea specific to my experience...
Take my steel/aluminum earth battery described elsewhere on Overunity(simple system) and add:  To the positive, ungrounded end, an overhead wire, say, strung between two or more trees---if they're available nearby.

--Lee