HIGH QUALITY TPU DVD Video Released from Jack Durban

[EMdevices]

Others have done this before, but I thought I would post my results based on the new video and audio (I used Spectrum Player, freeware).   

Of particular interest to us, has been the buzzing sounds that are produced by the mini TPU, right when it gets activated.   If you want to duplicate this sound frequency, you can turn on a bread toaster, and you will hear it.  It's a buzzing or constant humming that fades after a few seconds. (not sure if its the same frequency but sounds the same to me)   However, in the case of the TPU,  the sound also pulses, and we can hear at least 3 or four pulsings before it fades away.

Looking at the Fourier transform of the signal, we notice the harmonics composing the signal (short lines in time, and height represents their frequency.).  They seem to be in groups located somewhere around 4 kHz, above and below it as well.

This can imply two very close in frequency signals that mix, and we get the slow pulsing, and the higher harmonics, etc., or perhaps it's an interaction with the glass table.

EM

[Grumpy]

glass table

Why is the TPU affected by large metal objects?  Surely a large sheet of aluminum would not affect a magnetic field, yet SM specifically stated that a large piece of aluminum would affect the TPU.   So large conductors are detrimental in some way.  Is just one conductor a problem? - could you use two and balance it out?

[EMdevices]

if the tpu receives energy via electromagnetic fields,  then blocking those with a large conductor would stop the operation.   The effectiveness at blocking magnetic fields goes down with frequency,  since a simple conductor relies on eddy currents to oppose the CHANGING magnetic field,  and if it changes too slow, the eddy currents are to weak so not an effective blocking mechanism.

For slow magnetic fields,  the best bloking scheme is a ferromagnetic enclosure, not just a simple conductor enclosure.  For high frequency,  then a thin aluminum sheet should do just fine.

At 5 kHz,  I would think the bloking effectiveness is very low.   So a good experiment that Steven should of done is to place the TPU inside a ferromagnetic box, and see if it still works.

EM

[Grumpy]

if the tpu receives energy via electromagnetic fields,  then blocking those with a large conductor would stop the operation.   The effectiveness at blocking magnetic fields goes down with frequency,  since a simple conductor relies on eddy currents to oppose the CHANGING magnetic field,  and if it changes too slow, the eddy currents are to weak so not an effective blocking mechanism.

For slow magnetic fields,  the best bloking scheme is a ferromagnetic enclosure, not just a simple conductor enclosure.  For high frequency,  then a thin aluminum sheet should do just fine.

At 5 kHz,  I would think the bloking effectiveness is very low.   So a good experiment that Steven should of done is to place the TPU inside a ferromagnetic box, and see if it still works.

EM

I thought SM said it did still work in a ferromagnetic box - maybe I imagined that.  I do remember that he stated that it worked in an aircraft - to 15000 ft as I recall.  I think the problem with metal objects is when they are in close proximity.

As for the TPU working via recieved EM fields - SM stated that the energy comes from "within" the device - not from an outside source - within.  That pretty much narrows the source down, doesn't it?

Are you familiar with what Maxwell termed "displacement current"?

[turbo]

As i recall he said it Won't work in a small metal box...

M.