Rosphere_TPU_01

[giantkiller]

I am down to 100ohm base drive 555 to tip41a or b. Then 5ohm on the tip41a or b collector. Emittors straight to ground. Tip41s get warm. I have the tip41s in a radio shack terminal block for easy replacement. I just let the whole thing flop around. Slap it together and turn it on is my motto.
Pics on LOTR page 1 post 2. My specs. The GK4 pic shows the terminals. Same as most of the other posters TPUs are using.

Your magwire single layer single segment is just fine. You might  have to use 100ohm driver(tip41) collector resistor in line with your control coils. You want to overdrive the magwire with high speed leading edge and then the bemf will pull more current. The kicks use more current, naturally than the incoming drive to the coil. Slap that copper to expand the magfield as fast as possible. And try to keep the center of the tpu empty. No metal running across the middle. Gives the field free access with no interference. This has to do with the nonlinear medium. Suspicions abound. GK4 is not emtpy and I am working that issue also.
Have fun. This should get easier for you now. Glad you are making it to the next stage.

--giantkiller.

[Rosphere]

GK, one more question, (two parts,) what frequency ranges should my top/bottom coils and middle coil be in, roughly?

[giantkiller]

It is pretty wide like between 1hz and 500khz. Run one coil first with the range you have possible in your circuit. You'll see bands of allowance and disallowance, high and low impedance. Pick one area and then pulse the other frequency against it in another coil. You could do the math for this, but then you wouldn't see other effects. As long as you are not blowing up parts you're fine. The magfield has got to meet in the center for compression. A 6" TPU equals a 1 foot magfield. Is this neccessary? The stressed magfield gives us something else to work with. You could move a magnet or a compass or it plays the electric guitar all by itself. That is what we have achieved so far. But since your TPU is different and you come from a different mindset, that is the grounds for experimentation in your arena. You know the gratification when you see results of your work. It is a thrill. And in this phase of the TPU game when you are jumping in you are at an advantage, especially using magwire. You won't end up with a tpu graveyard. I am curious of the results of how you made your TPU. Have fun with your scope.
Just turn things on and play.

--giantkiller.

[Rosphere]

It is pretty wide like between 1hz and 500khz.

Well then it looks like I am going to need a wider array of capacitors.  The Radio Shack near me has 95% of it's floor space dedicated to consumer electronics.  The parts area is in the back corner.  I found only a couple of the capacitors that you had recently listed for me to have on hand.

The straw that broke the camels back for me was that Tom Bearden video that I linked in another topic.  His diagrams and explanations about the four signals and the nonlinear medium gave me something conceptually on which to hang my hat.  I could now start building something.

Now I think I know what functions the top and bottom hoop assemblies accomplish; these are the pumping coils.  The middle hoop is the A3 signal coil.

I use old-school closed-loop electronics to, "tickle my coils under the chin."  Then I plan to tap the passing energy stream from the outer windings on the one end, through an incandescent bulb, and to the hoop(s) on the other end; an open-loop circuit.

I am already getting up to 3 volts AC as measured by my multimeter.

My hoops are overall narrower than most other replications here and my spacing is on the wide side.  So, if I get no more significant output than 3 volts AC screwing around with the closed-loop side of things, I will make Rosphere_TPU_02.  It will have, as near as I can make, hoops identical to its predecessor, but spaced much closer together.

I wonder about concentric hoops.  We could try to replace the outer windings with one outer collector ring and one inner ring.  Five hoops: outer and inner collect while the three coiled hoops in between supply A1, A2, and A3 signals.  I wonder...

[Rosphere]

I finally gots me some more caps to feed to my 555 board.  Frequencies shall abound!