@slapper

Google MUSIC OF THE SPHERES, then pythagoras  you'l be pleasently suprised.
                                                                                      Joe
                                                                               

here's a site with good info about them, and who makes them

btw, why are you interested in depletion-mode? they are much less common.

...because they more closely operate like tubes maybe?

http://www.automotivedesignline.com/showArticle.jhtml?articleID=191900470

Thanks for the reference, I have looked at that site and a number of others before, they do describe what the DEMOS is (depletion mode mosfet) but they do not have them for sale.

Why the interest in depletion mode?
Trying to keep it simple, and allow the system to self tune, find it?s own resonant frequency by default. Then build on that. Remember the old DC bicycle bells? A set of AA or C batteries and simple coil and a leaf spring. The spring by it?s own movement interrupts the circuit, and moves back at its own natural frequency. (function of stiffness, weight etc)

I?m interested in the off part of the cycle. First having a current and then stop the flow abruptly, it would also be in line with RE behavior, kicks, etc.
So first I looked into NON SS solution such as normally closed reed switches. Place them in line with the coil, and as the coil gets magnetized the switch opens, stops the current flow, the magnetic field collapses and the cycle repeats at the frequency of the coil's magnetic field collapse and so on.

However; there are a couple of  issues with reed switches.
, They have difficulty handling inductive loads, even though they are nice little spark gap devices (normally on mode)
. Most have a self resonant frequency of 2-3 Khz and that way bellow the 5kHz mentions for the TPU. But few more difficult to source models may go higher above the 5Khz range
.Finally their cycle life is few million cycles, so the tpu would not run more than about 20 mins or so at 5khz. Go to Mhz and assuming it can switch that fast, it wouldn?t last more than few seconds.

So the next step is to look at something that would handle fast off-switching, with long cycle life, and higher frequencies just in case it needs to go up to the Mhz range.

And that led to the DpletionMode MOSFET. Were a voltage on the gate actually switches the current off and at nanosecond scale times. The signal to the gate can come directly from the control coil as it get energized and so on., or better yet from the collector so the loop is closed fully and the system automatically finds its own resonant frequency, whatever that might be, with a simple, inexpensive set up.

@ Slapper

Check this out for more info on the planets and their humm
listen here  http://ccrma.stanford.edu/~matt/220a/spheres-2.wav\
heres the page its from  http://ccrma.stanford.edu/~matt/220a/hw3.htm
                                              joe

I watched all of the videos & recorded what SM said about his TPUs.  Here is what he said:



12 Ounce Open Unit in the 38 Min Film.

OD = 6 inches.
Height = 2 inches.
Thickness = 1 inch.
Output = 186V @ 5 Amps.  7 Amps with a Heat Sink.

============================================
Small 1 Pounder, Open Coil.  Took Magnet from his pocket.

OD = 4 inches.
Height = 1 3/4 inches.
Output = 100V @ 1 Amp.  7.3 Hz & 5 KHz.
=================================
Small Open Coil, 1 1/2  Pounder:

OD = 6 inches.
Height = 2 inches.
Thickness = 3/4 inches.
Output = 120V @ 5 Amps.  7.3 Hz & 5 KHz.
=================================
Large 17" Open Coil.

OD = 17 inches.
Height = 3 inches.
Thickness = ?
Output = 830V @ 10 Amps.
=================================


.

I watched all of the videos & recorded what SM said about his TPUs.  Here is what he said:



12 Ounce Open Unit in the 38 Min Film.

OD = 6 inches.
Height = 2 inches.
Thickness = 1 inch.
Output = 186V @ 5 Amps.  7 Amps with a Heat Sink.

============================================
Small 1 Pounder, Open Coil.  Took Magnet from his pocket.

OD = 4 inches.
Height = 1 3/4 inches.
Output = 100V @ 1 Amp.  7.3 Hz & 5 KHz.
=================================
Small Open Coil, 1 1/2  Pounder:

OD = 6 inches.
Height = 2 inches.
Thickness = 3/4 inches.
Output = 120V @ 5 Amps.  7.3 Hz & 5 KHz.
=================================
Large 17" Open Coil.

OD = 17 inches.
Height = 3 inches.
Thickness = ?
Output = 830V @ 10 Amps.
=================================


.

Nice compilation of data.

Takeaways =

SM was able to make the output voltage anything he wanted which points to possible primary to secondary ratio.

SM design motive for voltages is to output familiar U.S. line voltages as to appeal to potential U.S. investors.

Quote from: Jdo300 on April 20, 2008, 11:28:56 PM

Hi Stefan,

The Carl letters are in the TPU Compilation PDF that Marco made.

http://www.overunity.com/index.php?action=dlattach;topic=2383.0;attach=9211

The letters start on page 37.

God Bless,
Jason O

Many thanks again Jason for all the work you
put into it and also for uploading the last parts.

I restudied this Document again and Marco was quite right.
The OpenTPU could also have been made
from bifilar wire.

What is clear now to me is, that ALL the TPUs
are based on rotating magnet fields
which extract like whirlwinds or tornados
probably some magnetic energy from the surrounding.

To get a basic effect I guess it is only important to rotate
3 or 4 coils with the right shiftregister pulse train,
so that we have fast revolving magnet fields and
then extract the power from it via 90 degrees oriented coils,
so the 3 or 4 control coils are not dragged down via counterEMF.

In the big 17 inch LargeTPU the output coil is just a a big ring
of stranded copper wire ( loudspeaker cable), where the control coils are wound around it.

In the OpenTPU SM speaks of:

"here I place the magnets into
the "Receptors""

Could these "Receptors" be the
Receivers of energy of the rotating magnet field ?

Probably yes !

I played around yeasterday night to deinterlace the
video and have looked at it back and forth for several hours
again and again in slow motion and also changed the Gamma and contrast
to see more wires, etc...
and I am sure the OpenTPU has at least 3 or 4 of these
magnets with "Receptors" in these "stand quaders"

Also SM admitted in that compiled PDF document that
there are 9 Volt batteries in some TPUs
for setting up the control circuits..

So I think these "Receptors" are just special 90 degrees coils
to the rotating magnet vortex which intercept the rotating flux
and don?t weaken the rotating flux.

I still need to try other deinterlace filters for virtualdubmod
and when I am ready I will post these deinterlaced
short clips.

Regards, Stefan.

Nice to see a return to the 90 degree displaced coil topology as that is the correct assumption. The gyroscopic effect was due to the four coils stepping from one to the next. There had to be a heck of a lot of energy present to create the physical effect motion like this. SM's references to resistance to motion was not a distraction or ruse. This device could be some type of resonant motor that performs like the Tesla 381,970 patent reveals.

Again considering the design's seemingly unlimited scalability factor, resonance must be achievable without requiring a tuning as much as jump starting the engine so to speak. Once the motor starts is self locks at the resonant frequency and remains locked. So are we looking at trying to receive a harmonic of the Schumann cavity or it this device really a phase locked loop in quadrature?!

Now to revisit the tortured logic and terminology SM used to describe what he didn't understand as it was all after the fact knowledge, and using "tube" theory as a translator or filter rework the theories.

On a lighter note I would dismiss the term "receptor" as a SM "Star Trek" moment.

@slapper

Google MUSIC OF THE SPHERES, then pythagoras  you'l be pleasently suprised.
                                                                                      Joe
                                                                               

Like in http://news.softpedia.com/newsImage/Pythagoras-Was-Right-Scientists-Devise-the-Geometrical-Music-Theory-2.jpg ?