A Kapanadze generator replication - Febuary 2013

[tika]

I think you should work from Kapanadze's patents rather than Naudin's non-replication.

I plan to build 4 coils, plus the condenser 'option' on the Lithuanian coil.  The HV driver will be the same, though.  Some people seem to have gotten decent results with that coil, and it seems fairly easy and cheap to build, so why not ?  The copper can always be reused.

[tika]

I need a signal generator, for tuning the beast. It should have the following features:

- Range from 15kHz to 20~30MHz
- Sinusoidal wave output and its 180 degrees phase.
- Square wave output with adjustable duty cycle.
- TTL or CMOS level at least.
- Frequency sweep would be nice.

Since I don't have 1000€ to invest right now, I was looking into building one from scratch.  But aside from the time it will take me,  I know it will cost at least 75€, the frequency sweep alone is not a trivial matter since the requirements demand a VCO that will cover that frequency range AND give me a perfect sine wave.

Fortunately I've found this little DDS module based on an AD9850 on eBay.  It fits all of my requirements, and can handle up to 23 million frequency changes per second for a fairly smooth sweeping. The only thing is that the sine output impedance is a bit high at 150k.  I will add a high performance opamp (an    OPA4350UA) that will give me the drive I need.  I have an Arduino laying around for driving it.  I will post the source code here when done.

So things are not turning out too badly on this one as this is much needed piece of equipment. I will end up having a compact, high precision signal generator, with a USB interface for under 30€, and a couple of days' work (that's if I do make a Windows user interface for it).

m:o)

[tika]

Excellent idea tika.  Nice work in setting all this up for such a good cause.   It's also nice having a largely build related thread in the Kapanadze device.  Best of luck with your build.

Thanks. I see it is simply something that needs done.  I do believe the technology works. That's where it's really needed. The third world is the place where DYI-based deployment can be blazingly fast.  And les Abricots, where I'm headed is a very nice place to be, with such nice people it really makes you wonder where the rest of the world went wrong.  I have friends there, I can help, and can have a good life to go along with it, is all.  After all, the place is also called "Paradis des Indiens" because the indian natives believed that was the place where good souls went to rest.

As for the documentation, imho there is NO documentation for the moment, it just is scattered in too many places and riddled with riddles.  I know we don't understand what makes it work, but does it really matter if there is a working device?  An easy to follow, step by step pdf build guide is all the world needs right now to get an energy revolution going. And I cannot understand why it hasn't been done yet, as complete written documentation is the scientific way of doing things.  I am not angry, but I just don't get it.  The theoreticians can keep arguing while the first generation of generators are built, and you can rest assured some tinkerer deep in the Sahel desert or the mountains of Cambodia will find a more efficient, easier to build configuration.  Poverty does make one resourceful. 

Enough rambling...  I will start coiling the SR193 coil today, using the incomplete documentation he left for posterity.  Oh well... Will do my best.

m:o)

[Grumage]

Hi tika,

I wholeheartedly agree with your sentiments. We do need to be free from the fetters of establishment. Politcs aside, I think that the circuit posted below seems to embody all the aspects required for a working machine. What do you think?

[Overschuss]

I will add a high performance opamp (an    OPA4350UA) that will give me the drive I need.

I personally prefer a BUF634T, because it's fast and has a higher output current. The price is roughly the same.
Good luck for your Project - and Success !