Successful TPU-ECD replication !

[ronotte]

Hi all,

I've done lot of tests on Caduceus /ECD setup and gained many infos about it's behaviour but not worth to publish for now.

Mainly it's now clear that the 2-3 smaller (but not so smaller as they are about 100V amplitude) pulses following the main are the same Soliton fdo already reported by many (JLN & others), what it's interesting is that the DC level on output does appear only by varying the input pulse dutycycle.
I confirm that the setup bandwidth is large and it's possible to extract power with almost all freq in range 30- 200KHz. Yes, using 2 freq it's possible to obtain more power output....but still with COP<1.

Tried also to wind a couple of feedback coils onto the Caduceus and establish possible feedback with the wire load   .... NO WAY. The problem may be in the fact that on this Caduceus there's no potential gradient ...as it is a linear coil.  So next step will be to build a Caduceus on a Cone to provide a suitable geometry variation ---> potential gradient  and see if in said case I'll be able to setup a feedback.

Roberto

[ronotte]

Hi all,

I'm getting some trouble in properly winding a Caduceus or Smith coil onto a conical shape, it's really difficult as the turns are always sliding ... a series of comb like stops to be glued onto the cone surface are needed and I must find the way to do/buy them...so for the moment I'll suspend it until I'll find a correct solution at the mechanical problem. Anyway I already have a 30cm and a 50cm (highness) plastic cone to use as coil support.

@Otto,

The kick generating coil, as you have read on the other thread (TPU general discussion), has been easier to build than I previusly thoght. But now I'd like to make some optimization in order to obtain more potential (I'm looking to obtain at least a couple of volt). I'm planning to test some ideas during the week-end about the 'how-to' and if positive I'll report them here  (so please stay reachable), anyway, as always I'll keep a detailed log about the tests themselves.

The purpose of this test is to connect the special designed Kick-coil simply as a CC secondary: across the Mobius.....but may be there are at least other 3 - 4 solutions always pointed towards obtaining an auto-susteinable loop.

Roberto

[BEP]

@ronotte

I've found using two styrofoam cones with large ends together as a form works but is still difficult. The key seemed to be switching winding direction as the wire passes that largest diameter. It took me days to wind the last one like that. The angle you want is seen when looking down the axis. Then place this coil inside a solenoid type coil to get the gradient.

[ronotte]

sorry duplicate.

[ronotte]

@BEP

Many thanks for sharing your experience.  After an entire afternoon of tries a abandoned as I were unable to put the 90 degree crossed turns on the Cone surface even a 45 degrees seems very difficult!   I've tried many methods ---> NO WAY. In the beginning it seemed a little problem but at the end it revealed big.
I'll appreciate very much to hear about eventual your own past experience in the matter.

Roberto