Lords of the Ring

[joe dirt]

For an experiment I went ahead and wired up the old television yoke.  In the pic
  there,s four extra loops, each has a small led, the lamp and rectified circuit are
  hooked to the out between the transistors, you can,t tell it but the bulb is at
  incandescence and the voltage on the meter is at 70 volts, the battery is charged
  to 12 volts (original charger burned out) not unity, but something I wanted to try.
Next I will use alunimum rings and wind these with bifilar to try and capture more of
  the collapsing emf, possibly a reflected emf off the alunimum...   Ehh who knows,
  back to the bench

Dirt

P.S. the reason i,m not doing otto & roberto,s design is because I don,t have any
       mosfets and besides I think that area is being covered quite well

[giantkiller]

@Joe, Very interesting posts. Thanks for the 'Out of the box' possibilities.

I wind coils and finish up fet controller. Due to my dangerous nature I have decided to make some safety inclusions.
One precept is that alot of single layer 30awg at 90 degrees to an adjacent conductor is harmful. I have proven this to myself and posted the results.
So I am using Polyethylene tubing which is not heat tolerant. If runaway occurs, the coil form will degrade thus stopping any further avalanche action. Also, the 30awg should defuse.
I am progressing towards the seed/RE production. I saw this on the GK4 with a 10mhz scope.
If the aquiring of the seed by 2 frequencies is achievable and causes great heat then I am screwed. I'll will have to rethink the performance before I replace the polyethylene with heat resistive automotive hose.
I am also impacting this design change with the multichannel mosfet driver. Do we really want to smack the copper faster / harder that has the capability for avalanche into runaway with no control in place? I have the overvoltage shutoff board that Mannix suggested I build after my first tests in Jan 07. But I feel that I should put in mechanical, thermal, chemical shutdown. The 30awg and the polyethylene will do this.
My hope is that these current mechanical variances will not allow 3 frequencies to be used. This will be a good test. We shall see.
The Tesla coils that are built using copper tubing spew out 6 to 10 foot sparks. At least you can see the energy output. On the TPU you get energy out before you see it. I ain't that crazy to play with that in close proximity. Been there, done that.

This post took on this format for the sake of documenting the operational progression at a slower rate with a greater level of variances thrown into the mix. We are not just pulsing coils any more.

--giantkiller. Greater science, greater safety.

[Thedane]

So I am using Polyethylene tubing which is not heat tolerant. If runaway occurs, the coil form will degrade thus stopping any further avalanche action. Also, the 30awg should defuse.

You can place a few thermo fuses in your coil.
When the temperature exceeds its limit it just opens - and current stops flowing 
They also blow if current exceeds its limits - usually 10A.

Farnell link:
http://uk.farnell.com/jsp/search/browse.jsp?N=411+1001445&Ntk=gensearch_001&Ntt=thermo+fuse&Ntx=

[giantkiller]

Yes. This can be done.
My approach is if this soft plastic unit does not melt then the testing can progress on the path towards the previously stated goal. There would still be room for improvments to get to power harnessing.
But, if at this stage there is a meltdown, then there is no room to grow as of yet. The progression to control based on the new findings would be mandatory before going to power harnessing.
Two pronged approach.

I am also going to test the mosfets in, mosfets out configuration.

--giantkiller. Stepping lightly around the sleeping beast.

[joe dirt]

Hey G.k., appreciate your efforts.

another interesting link:
http://www.mdatechnology.net/outreach/tech_update.aspx?art=3607

Dirt "let,s roll"