Successful TPU-ECD replication !

[pauldude000]

ltns @all

@otto, robert, Giant, acer, and all

I should be back online any day now again, and I shall be building within a few weeks. Like I stated earlier, when I aquired the necessary tools, I would build, and I have put some money where my mouth was! I LOVE Ebay sometimes.

I am getting a B&K oscilloscope (100MHZ 4 channel), 2 function generators, true RMS voltmeters, digital variable Pwr supply, a field meter, breadboards, etc....

Within 2 weeks or so, I should have enough of my junk recieved to procede!!!!! YES!

SHOOT, I forgot a webcam for conferencing and vids....... hmmmm, I wonder whether the one built into my laptop will suffice?

@all

I will start writing more progs for electronics and update said thread here at overunity when I do. Good to be back.

Paul Andrulis

[Jon]

Feynman

Thanks for your post on the oscillator setup. I am working on almost the exact same thing, but yours is better. I will be posting all my results here: http://freeenergygroup.com/?page_id=6

I used the LTC1799 which ranges from 1Khz to 33Mhz. The problem is that my 6" TPU resonates at the very high end of its range so the pulse can't rise very high. Im now building a 18" TPU to better test with this circuit.
I have a desktop computer with a Java application that interfaces with an Atmel AtMega16 microcontroler to measure TPU output and control the three input frequencies.

The interface is not complete yet. I was going to use digital pots to control the oscillator but this LTC6904 connects directly to the microcontroller which is way better.

Thanks everyone for your input:)

[AbbaRue]

Hello Feynman:
I'm interested in the LTC6904 chip, were do we get them and how much do they cost?

[Feynman]

@Abbarue

I got them at Digikey and they are $4.

Remember LTC6904 uses I2C  (two-wire) bus so you need something that speaks I2C.  The LTC6903 is the exact same thing except it uses SPI (four-wire) bus. I decided to use I2C because it has addressing, and one microcontroller can talk to many oscillators (I think).

Here is a site where someone has used an Arduino to speak I2C to a component.
http://www.nearfuturelaboratory.com/2007/01/11/arduino-and-twi/

@Jon

We should collaborate so we can standardize things a bit... did you write  a protocol to speak to the Atmel?   Maybe we should all write a common protocol.

@all

I also think you can take square wave output from LTC6904 and change to sine by running through a 6-pole analog  low pass filter.  Then you can amplify using either IRF840 MOSFETs or tubes (12AX7, 6L6). 

Be advised that Marco has said he cannot achieve certain TPU effects using digital oscillators.  He has recommended using tube-based Colpitts oscillators.  I am hoping we can 'scan' using digital equipment even if the actual power oscillators must be constructed using tubes.  This may simplify finding the right component and frequency values in a tube colpitts oscillator.  Or maybe we will get lucky and a digital waveform will produce interesting effects.

[turbo]

 
Be advised that Marco has said he cannot achieve certain TPU effects using digital oscillators.  He has recommended using tube-based Colpitts oscillators.  I am hoping we can 'scan' using digital equipment even if the actual power oscillators must be constructed using tubes.  This may simplify finding the right component and frequency values in a tube colpitts oscillator.  Or maybe we will get lucky and a digital waveform will produce interesting effects.

If you use a tank, make sure the frequency is not affected by the field around the torroid other then the feedback for frequency correction..
This is one of the reasons why the solid state devices fail.
The field induces tiny currents in and around all metallic objects and these influence it's operation characteristics.
Another solution is to use amplified light, or better said optical switching.

M.