The Brnbrade Coil/Overunity?

[BEP]

Regular Cook coil?

I'm hopeing my will be regular if that means working like he said it should.

Don't loose hope in it. I didn't understand the importance of magnetic circuitry until mine started putting out seemingly perfect square waves with battery DC input.

If I can reproduce this effect when I repair them this weekend I'll post details so others can help figure how it does it.

It is becoming clear that magnetic circuits are analogous to electric circuits and have the same importance in design. I haven't even tried adding caps. The only resistors i used were to limit current initially.

[Earl]

Hi BEP,

In my opinion the iron cores serve only to reduce the frequency of self-oscillation so
that it could do something useful and be measured in 1871.  That is also why he wanted
to use cores that are a meter long and coils with huge inductance.

I do not think any ferric cores are necessary in 2007, air-core should be good enough.
Today we have nanosecond oscilloscopes, microwave spectrum analyzers, etc. which they did not have in 1871.  Iron core automatically means more losses.

Two NEO magnet cores would also be an interesting experiment.

Regards, Earl

Regular Cook coil?

I'm hopeing my will be regular if that means working like he said it should.

Don't loose hope in it. I didn't understand the importance of magnetic circuitry until mine started putting out seemingly perfect square waves with battery DC input.

If I can reproduce this effect when I repair them this weekend I'll post details so others can help figure how it does it.

It is becoming clear that magnetic circuits are analogous to electric circuits and have the same importance in design. I haven't even tried adding caps. The only resistors i used were to limit current initially.

[wattsup]

Guys, don't get me wrong. Same old same old is still good if you measure it in a few volts. Also the effects seen are very interesting and I am just a little pissed that I could not replicate at least one of Brnbrades Trials. it's still wierd and wonderful!!!!!

@Earl

I think the iron core is doing much more than that. At best the iron core is being maintained polarized and magnetic. Cook says his core can also be used to initiate motive force.

@Jason

I connected the two Alu foil layers on each coil set together and no change. Thanks for the idea.

@BEP

I am a nyphite when using my scope. What do you mean by seeing almost perfect square waves. When I am putting DC onto the coil, when checking with the scope either on the AC or DC setting, it is giving the same sine wave, upper half, lower half, etc.  Also when I was putting in only a frequency from my function generator, the sine wave would not change even when I switched from square wave to triangle to sine.

Funny effect - when looking at my build as points A, B, C, D.

When I put 3 vdc (or more) at B and D and measure voltage at A and B and place the meter temrinals so it measures as positive current. Then I put my compass at the core end it is the North pole, the other core end is the South pole. Now when I switch polarity of the 3 vdc feed on B and D, the polarity on the meter goes to the negative, but the compass still shows the same core ends to be North and South. They did not change? In fact if you move the compass all the way around the coils, it will move from north on one end of the core to south on the other regardless of switching polarities on the feed, the north and south will stay the same. I would have expected this to change when changing the 3 vdc polarity.

I will make some more studies on this and do some small diagrams to show this effect under different connection schemes.

I aint over till it's over.

@all

Actually for us electro-nyophites, I am wondering if I should open a new thread entitled "Electronics 101" where persons with low level EE capabilities can ask (and not be ashamed to ask) many elementary questions, that if answered would push them forward in leaps and bounds. Not all OU'ers are EE pros but have great logic sense. If you saw all the projects I am doing right now, you would agree that non- EEers have a valid place in OU research. All we need is some clarification on certain aspects of EE and a new thread could be good place to harbor such information that newcomers can be directed too.

Are there any EEers willing to participate, but have the patience to teach?

[Thedane]

wattsup:

I would recommend that you read the "XYZs of Oscilloscopes" from Tektronix
http://www.tek.com/Measurement/App_Notes/XYZs/

I would also recommend that you read the "ABCs of Probes" - also from Tektronix
http://www.tek.com/Measurement/App_Notes/ABCsProbes/

I hope that will clear up a few questions about your scope 

[BEP]

@Wattsup

You should always feel free to ask. Anyone belittling you for asking should be spanked. The difficulty in answering is not knowing important details.

I also see the core polarity anomoly. I may have an answer for that when I am able to reproduce my last experiment (without the short circuit!)

Sine-wave generally appears like ripples on water surface. Triangle is similar but the peaks and valleys are sharp and pointed. Square wave is like Sine except the rise and fall times tend to be straight up or down and the tops and bottoms are flat or near flat. You should follow Thedane's advice. When you understand the screen you will have a multitude of information to work from.

@Earl
I'm using ferrous core as that is only a starting point. I'm trying to look at the whole process as if I must drive a horse and buggy to the saloon at night. I thought about following the suggested dimensions but I tend to knock out electronic communication and fry things with much smaller devices. If my wife saw me wind a 6 foot coil she would call 911.

I did try some 13mm x 3mm stacks of Neo's. The peak to trough distance increased but self-oscillation was non-existant. I'm starting to think the longitudinal waves are being reflected by the Al layers. This should not happen. I need to prove to myself how it does or what is actually happening.

All this learned info is being applied to my reproduction of the 91Volt TPU. Even if I get a cooking Cook coil I'll continue with the TPU.

The attached is a sketch from notes of the waveshape. If someone has seen this before I would appreciate info.