What do you see in the FTPU image?

[darkspeed]

Perhaps SM had to get the steel wire away from the real coil wrapped around the center of the spool.  Thank you for this keen observation.

I don't see any means of feedback via a field or space effect in this early version.  This unit may have no feedback at all.  The output was pretty low compared to later units.

Anyone see a collector coil or wire in this unit?

This unit was only seen powering a meter - not a load.

at this point i think it was a signal amp stage and not a usable amps stage of the design.

i would guess that at this point the feedback was high frequency microphone/transducer nested in a reactive coil.

If you ionize two plates ( or coils ) at 35khz the number of positive and negative ions reach balance, or a better way to look at it they reach their greatest potential difference. boundary condition  = harvest time

[darkspeed]

Lets not forget what he was doing at the time.. was not hacking atoms or folding space time.. he was building speaker arrays with delay lines and I assume MEASURING THE RESULT. This would mean a ultra high fidelity microphone ( or microphones ) in the center of the room connected to a spectrum analyzer .

I would bet he found the effect through a mic first. Then an o scope . Then exploited it through design.

If i did i would let my speaker system obligations slide too...

[Grumpy]

Yes, you used transistors, but did it work? 

A.

I used them to pulse a coil, not find the Holy Grail.

At the base of the choke on top you can see two spade terminals spray painted black ,one wide - , and one narrow +. These appear to be part of the base that the choke is mounted on. These are the steel terminals that he sticks the magnet to. If one side ( not face ) of the magnet was south and one side was north when he attached the magnet it would bias one side of that choke ... or maybe there is another coil nested inside of the center of that speaker wire spool he used to build it.

it would be real easy to hide a 30-60khz ultrasonic mic in there and then choke it off at 35khz to get your feedback.

experiment for you.. take an old speaker and cut the cone and webbing so you can move the voice coil. no magnet on terminals and the coil moves freely, but place a magnet on the terminals and the eddy effects fight you from moving it fast.


ps:  http://www.cnn.com/2009/TECH/09/02/wireless.electricity/index.html
.

Some speakers have terminals like this - one wide and one narrow.

Lets not forget what he was doing at the time.. was not hacking atoms or folding space time.. he was building speaker arrays with delay lines and I assume MEASURING THE RESULT. This would mean a ultra high fidelity microphone ( or microphones ) in the center of the room connected to a spectrum analyzer .

I would bet he found the effect through a mic first. Then an o scope . Then exploited it through design.

If i did i would let my speaker system obligations slide too...

An unexpected signal on the spec anny might indicate extra energy.

With a coil on the spool like that, he probably did not rotate the field, but put a little in and got a little more out.  Just a little magnification.

Great observations, Darkspeed.

[darkspeed]

Some speakers have terminals like this - one wide and one narrow.

Good point Grumpy.

It always bothered me that the edges were so sharp on that choke, most chokes have a radius on the edges to facilitate winding.

It looks more like a speaker magnet but I cant seem to place it, maybe a old high end tweeter? Maybe its original voice coil is still attached and just hidden in the core of the spool.

I remember from one of the videos he sets the bigger unit down on its edge on the glass table and it squeels hmmmm...

[Grumpy]

Good point Grumpy.

It always bothered me that the edges were so sharp on that choke, most chokes have a radius on the edges to facilitate winding.

It looks more like a speaker magnet but I cant seem to place it, maybe a old high end tweeter? Maybe its original voice coil is still attached and just hidden in the core of the spool.

I remember from one of the videos he sets the bigger unit down on its edge on the glass table and it squeels hmmmm...

SM may have been using bifilar voice coils, wound himself or commercial.  At this point in time, he probably stayed with what worked and that may have been a particular coil.

I wonder if he was using a battery and no feedback to power the controls.

I can;t recall off the top of my head but did this unit stop when flipped or when a magnet was removed?