I'll be mixing the black goop from dry cell batteries into conventional clear shelac. If the effect is what I suspect then it'll be the same as Al varnish.

Does the speed of voltage change with different or no capacitance?

The changing voltage sounds like a good sign - It tells me your coils are connected correctly.

@BEP

I'll be mixing the black goop from dry cell batteries into conventional clear shelac. If the effect is what I suspect then it'll be the same as Al varnish.

Does the speed of voltage change with different or no capacitance?

The changing voltage sounds like a good sign - It tells me your coils are connected correctly.

Yes the speed of voltage rise or fall is dependant on the cap used. I found that with low uF caps, there was no or little rise, with high uF caps, the decrease was slower when lighting the bulb and the increase was also slower since it required more uF to raise the voltage.

Since I do not know the capacitor value of Brnbrades' Trial #1 and #2, I tried all the ceramic caps I could find and none worked. The ceramic caps I had were in the high voltage low 0.xxxx uf range. I would need to find one with high uF low voltage but have not been able to find one yet.

Brndrabes' Trial #4 was the one I could try exactly as I had the same cap values since they were easy to identify. This was without input voltage or sound, and nothing worked. Tried start ups with voltage pulses in vairous points and nothing. Also, we cannot see on the photo were the meter was actually set. That is why I indicated either 13 or 50 VAC output on the photo. My unit was not near this, no AC, slight DC, so this main comparison of my unit to Brnbrades results leads me to conclude that my unit is not made properly.

Also, I connected my meter to points A and C and my signal generator on point B. Was able to bring the voltage up to 68 vac, plugged a 7.5 watt 120 vac bulb and nothing. Voltage dropped to mV's but no light. There was probably minimal current.

So all in all, the build in question is not good.

BEP - Please make sure you write down your next build spec so we can compare.

My build #1 had 3 layers of alu foil, build #2 had 24" on the first alu foil layer and 36" on the second alu foil layer. Maybe this was too much also.

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.

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?

@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.

Well, I finally got a response from the manufacturer of Alu Varnish in Belgium. They do not have a distributor in North America and will not send only one can of varnish to Canada. So I guess their Alu Varnish is a no go.

The other option is too make my own using fine aluminium powder and a good quality varnish. Their Alu Varnish has 34% solids, but this could include a whole host of other elements besides aluminium. They did confirm the RAL9600 color is aluminium color.

@joe dirt

Thanks for this USA company info.

I sent them an email yesterday, and got a response today and they can ship to me in Canada in small quart sizes.

Also, they have confirmed that their aluminium paint can be mixed with laquer or varnish. Plus the best news is they can make their paint with varying percentages of aluminium paste in it. I will be speaking with them tommorrow. I think I will ask them to simply make the highest percentage possible and I will do my own ratio mixes with local varnish. Seems like this will advance "eventually".

Probably, by the time I get my next build with alu varnish, Brnbrade will be back on this  thread.