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anyone interested in 200kilovolt low frequency modulator?

07/23/2007 5:42 PM

As I design (sometimes) very high voltage low power(a few hundred of Watts)supplies,and as I previously tested cascode chains of high voltage mosfets to regulate in shunt the high voltage supply of grids up to 5kilovolts,using 12 mosfets rated at 500Volts VDSS,I have two observations,which I submit for further discussion

1)cascode chains seem unstable when they are too long,say above ten stages in cascode.Is there a mathematical criterium which you could propone,for example not single valued string voltage with chaotic tunneling,or something of this sort?

2)I intend to built a 200kilovolt cascode shunt with a 20 Hertz bandwidth(suitable for alpha training of the brain)using 5 x ED500 colour TV triodes,which are rated at 40kilovolt peak anode voltage,40W anode disspation in air,and even more as I intend to use oil cooling and insulation.
Is there anybody interested in this kind of "scientologist" amplifier?
Pr. Birbaumer in Germany succeeded in decoding mind evoked electric fields(TTD:Thought Translation Device;University of Tübingen,Germany)and I intend to build my own 200 kilovolt TTD amplifier.I wonder if anyone is interested,and I need also 5(or more) magnoval sockets for these tubes.T.Y.

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Anonymous Poster
#1

Re: anyone interested in 200kilovolt low frequency modulator?

07/23/2007 6:28 PM

regarding Pr. Birbaumer, how was the output isolated (into components) and interpreted? what balances did he use to ensure the validity of the science? And was he able to discover a universal interpretation link?

Plus,

the entire field is intertwined with many things that translate into individual thought, including feelings, health, language, cultural benchmarks and individual preferences, reactive tendency,...etc. Not to mention there are factors that remain outside our ability to interpret, such as ESP, Preminition, etc..

its a huge field, and I find myself being naturally skeptical.

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Anonymous Poster
#2

Re: anyone interested in 200kilovolt low frequency modulator?

07/25/2007 1:07 AM

Why do you need to shunt regulate 5kV supplies?

Yes, there is a bit of maths avaliable that allows Elec engineers to predict stability is such systems, it goes under the name of "Control theory", I recommend setting aside an entire afternoon to master it.

What leads you to think "Chaotic tunneling" is occuring and could my circuits have it.

Are there any potential health risks in using 200kV devices to facilitate Alpha wave training of the brain (even with sufficient oil cooling)? Jeff

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Anonymous Poster
#3
In reply to #2

Re: anyone interested in 200kilovolt low frequency modulator?

07/25/2007 3:30 AM

I used 4 shunt regulators at 1kV and 5kV for the test of Thales microfocus X-ray tube with of power supply of my design:

The anode voltage of 0 to 150kV was provided with a push-pull of MOSFET operating under 0 to 24VDC/4amperes,with a oil insulated voltage multiplier 12kV to 160kV.
The tube has four grids:g1(wehnelt),g2,g3,and g4(focus),and as their draw very little current,but must be very finely tuned for X ray imagery(focus 7µ),I used 4 shunt regulators with cascode chains and CA3240E,and if the project would have been commercialy produced,then I would I used a table of EPROM with 16bits DACs for fine tuning.

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#4

Re: anyone interested in 200kilovolt low frequency modulator?

07/25/2007 11:45 AM

When you say 20 Hz bandwidth, are you talking of a frequency range from 0-20 or some other range that is 20Hz wide? Is it tunable to a particular frequency or is it simply fixed, with 10Hz "skirts" on each side?

Also what would be the waveform? Sine, square, or some other? Is this truly a modulator or simply a wave generator? If a modulator, what sort of signal would you encode and by what mode?

There are several uses for Extremely Low Frequency RF emissions. Metal detecting is one of them. Another is experimental long-range communications.

If it will produce a sine wave, there are other ham radio operators out there experimenting with ELF radio transmitters, but you would need to learn the morse code or have software to generate the characters as well as to decode them and have some sort of receiver capable of demodulating CW at those frequencies. A high efficiency antenna would be problematic, since the wavelengths for these frequencies is measured in ten thousands and hundred thousands of kilometers! But it can, and is being done.

The US Navy uses ELF for submarine digital communications. Here is a good example of what I mean:

" The US [Navy] ELF signal has 76 Hz centre frequency, with +/- 4Hz shift, 80 Hz for "1", 72 Hz for"0". For maximum signal coverage, the two stations operate simultaneously. Secondary frequency is reported as 00000.045 kHz. Other operational frequencies are technically possible, but so far not reported. The special - AC deep grounding system, in use for the ELF antenna, was designed and installed by LORESCO International.
The deep boreholes for the grounding system, are up to 3.2 km (2 US miles) down in the Laurentian Shield. The US Navy ELF transmitter facilities are believed to have an input power of 3 MW. As the efficiency of the antenna system is rather low, the predicted ERP is only 3 Watt (!).

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#6
In reply to #4

Re: anyone interested in 200kilovolt low frequency modulator?

07/27/2007 2:01 PM

Thank you for your interesting explanation on submarine application:

1)the device I propone has a DC to 20Hertz bandwidth,limited by the power dissipation of the power tubes and grid resistors and stray and input capacitances,and a push-pull output with 4 tubes (ED500 or PD500,oil immersed)could provide a somewhat wider bandwidth,limited by the stray capacitances of about 6 picofarad,and the peak cathode current of about 4 milliampere.Hence a slew rate(with 160 kilovolt peak to peak)of dV/dt=i/C=4E-3/6E-12=0,6 1E9 volt/second=600V/µsecond,which limits the bandwidth ,for a sinusoïdal signal of 160kV peak to peak,to 2000 Hertz,without the capacitance of the load.

The available peak current would be 4 milliampere at +/- 80kilovolt

I intend to use this device for experiences on ESP.
I have also projects of special uses on soft matter,both inverted micelles and sols,and heavy metal organometallics,with possible CPT violation,and possible new modes of waves propagation

2)I have also some work on ultrasonics:actually,I invented in 1976,and disclosed to three persons,one of which an engineer,and another one,a teacher in chemistry,which I called CODUS, for "COmmunicateur Directionnel à Ultra Sons".The choosen frequency of operation was 22kHz SSB.A somewhat similar device has been developped by an american or canadian company under the name "Acoustic Heterodyne"

Read the report of Mrs Elanor White on possible uses of such devices,in particular for military operations.

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Anonymous Poster
#5

Re: anyone interested in 200kilovolt low frequency modulator?

07/25/2007 4:39 PM

I have a system that is capable of ELF reception/transmission with a high level resolution in a localised area. It includes a filter system that is tied to the Hz frequency, that changes with availability of localised frequency transmission, and is thus regulated by the strengths of the signal and the bandwidth they occupy to focus onto those signals by matching itself with the bandwidth and strength.

but cross signal impurities alway affect the signals and change the modulations even if minute to become near impossible to discern with clarity. And the alpha wave field is becoming more contaminated daily.

Its one of those catch 22 things.

the more instrumentation that is capable of alpha transmission, the more susceptibility to signal contamination is created. We don't need that contamination, in fact, has any studies been done on the effects of contamination? And if the US government are capable of transmission across vast distances, the contamination is going to grow with it

Science knows no boundaries, and that's not always a good thing.

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