HIGH QUALITY TPU DVD Video Released from Jack Durban

[slapper]

wattsup and I started an exchange concerning the toroids here:

http://www.overunity.com/index.php/topic,4486.msg93644.html#msg93644

in this thread.

Take care.

nap

[poynt99]

thanks nap.

i've been aware of the bump on the inside and top of the 6" unit for a long time. i never equated that as a toroid though, but anything is possible without better detail in the pictures. so it's not very conclusive at the moment

the 4" device, there again, we have too few photos to really say. if we can't see daylight through it there might be a small enclosure for some electronics. so not very conclusive imo.

in both cases i'd say if our toroid was installed there, it would be quite obvious in the case for the 6", and it may not even fit within the 4" unit. has anyone done a size comparison i wonder?

one other note on the otpu, i'm not convinced that snapshot is showing a toroid. sure it looks roundish, but it sure isn't white or yellow in color. shadows may explain that, but i'm not convinced, sorry 

let's speculate for a minute and say that the toroid is used only for output filtering of emi. the otpu already has an emi filter onboard and no other toroid common-mode choke would be required. the onboard emi filter is the square silver one we've all seen by now. these filters use two coils just like the toroid common-mode choke.

why is the otpu the only one that uses one of these silver emi filters?

i'd say because it is in lieu of the toroid version, and so could explain why we can't see a toroid there.

[buzz-ard]

@aleks - While interesting, the MRA is not an OU device. See http://www.earthtech.org/experiments/mra/mra.txt. I did some casual study of piezo devices a couple of years back and decided that there was no real potential there, as piezos are good for producing vibration and resonance but can consume much power at higher operating levels. But I will say that I find the piezo-driven compressors now used in small refrigerators to be quite novel and innovative.

[aleks]

@aleks - While interesting, the MRA is not an OU device.

Well, you are referring to a single report and telling it's not an OU device. Not enough for a conclusion as its inventors say otherwise. It's like 50/50 situation. Why are you so easily favoring 'no OU' claim? Not to note that calorimeter measurements are lacking in both cases while they are the most important measurements in judging OU performance. Beside that my point is not about this exact piezo MRA. My point is that SM TPU may be working on similar concepts except that it uses magnetostrictive material as a resonator.

[aleks]

Note that magnetostrictive material (MSM) may be driven by piezo transducer to obtain full decoupling of "control" and "collector" parts of the device. Acoustic stimulation of MSM should theoretically produce magnetic force waves within and around the material that may easily induce electric potential in any nearby wire. If standing wave is created, the magnetic field will be strongest around this standing wave - in the case of circular plate, this standing wave will be strongest on the circumference. This standing wave and its magnetic field may then be collapsed by stopping acoustic stimulation for a moment. This will produce AC with "hash". Another possibility is induction of DC voltage which may seem impossible, but in the case of acoustic stimulation it is possible since standing wave consists of two or more wavefronts and thus represents interference of two or more moving AC waves (well, this is just an idea - it may be invalid).