Kapanadze Cousin - DALLY FREE ENERGY

[starcruiser]

Hi starcruiser. Where are you seeing a 'dipole'?
What tuning box between the TC and the dipole?
What device are you looking at? I see nothing like this on Akula's second device anyway.
All the best...

@void, the dipole is the antenna, the antenna is the coil over the air core coil. On the Akula unit, The ferrite rod with the 3~4 turns x 2 is the matcher for the SWR/frequency, the addition of the inductance counters the capacitive reactance and raises the freq i.e. allows fine tuning of the output

You need to look at the device as a spark-gap transmitter design of sorts with the air core coil doing the mixing (Hetrodyning) of the various signals.

For efficiency you need to tune the kacher/TC to the desired frequency (2mhz, 4mhz or whatever) and match the secondary output to the radiator (antenna). we would want 1/4 wave length on the TC output antenna dipole. This is all RF engineering now, need to watch your impedance of the various coils at their resonant points. the resistance offered at the operating frequencies needs to be looked at and factored in as this will consume power thus you need to watch this.

Look at how the primary TC and the Dipole antenna coils are wound. these are square coils (length = width) and are not close wound either thus minimal capacitive effect that impacts the resonant freq.

the other coils will need to be matched or a harmonic of the TC output to xfer power.

BTW, the 37.5M or 1.8Mhz is the DX frequency for ham operators, makes you go hummm don't it? Don't believe me google it. I wonder and have to ask, is he power these things from his Transmitter? local hams can run 1500watts typically. Most of these guys are potentially running more and have radio backgrounds.

http://www-antenna.ee.titech.ac.jp/~hira/hobby/edu/em/dipole/

@D3X0r,
adjustment of the TC (kacher) would be to change your secondary turns count (i/e/ inductance). Figure out where you are at and then you can determine what adjustments are required. If the secondary is fixed and cannot be adjusted then adding capacitance to the secondary is the only other way and you can only move in one direction.

[Void]

This should be easy to answer
how do I change the frequency of the kacher?

Hi d3x0r. Just change the number of windings on the secondary coil.
The Kacher driver (similar to a joule thief circuit) should run at the resonant
frequency of the secondary coil.
All the best.

[Void]

@void, the dipole is the antenna, the antenna is the coil over the air core coil. On the Akula unit, The ferrite rod with the 3~4 turns x 2 is the matcher for the SWR/frequency, the addition of the inductance counters the capacitive reactance and raises the freq i.e. allows fine tuning of the output

Hi starcruiser. Sorry but this does not sound right at all.
A coil is not a dipole. The large coil at the end is used like a radiator, so in
that sense it could be thought of as an 'antenna', but it is definitely not
a dipole. A dipole antenna has two separate radiator sections, hence the term dipole.
The dual coil on the ferrite rod (apparently wound with each section opposing) is apparently
there, according to Akula's explanation in the video, to create narrow HV pulses, however in my
own testing so far this coil arrangement does not seem to do much of anything. I still get a
sinewave out. I will be experimenting with this further however. May need to try different inductances.
All the best...

[starcruiser]

Hi starcruiser. Sorry but this does not sound right at all.
A coil is not a dipole. The large coil at the end is used like a radiator, so in
that sense it could be thought of as an 'antenna', but it is definitely not
a dipole. A dipole antenna has two separate radiator sections, hence the term dipole.
The dual coil on the ferrite rod (apparently wound with each section opposing) is apparently
there, according to Akula's explanation in the video, to create narrow HV pulses, however in my
own testing so far this coil arrangement does not seem to do much of anything. I still get a
sinewave out. I will be experimenting with this further however. May need to try different inductances.
All the best...

@void,

Take a look at some of the stuff I posted above, this might help with the antenna/dipole statement. A dipole is nothing more than a rod antenna, the other side is the ground, this can be provided by a ground plane (rods or a plate that is matched to the wavelength of the radiator) or a ground connection, where does the ground go in these in most cases? thru the center of the tube, but I don't think this is a requirement. The wire length of 37.5m was to match the 1.8mhz wavelength (Ruslan), but the ground length becomes less of an issue when the operating frequency is lower.

The diagram and URL is for showing the radiator pattern of the dipole antenna, this shows the rod antenna on the vertical axis the lobes show which way the signal is propagated, a half wave seems to be the best since this provides a high concentration of signal in the core of the coiled antenna since the signal comes out a 90° to the wire.

The other coils should be wound to a similar wavelength this way the radiation patterns match, this will allow the best power transfer as the dipole patterns will match.

The ferrite rod and coils is for impedance matching and adjusts the operating freq of the radiator antenna thats all, not required if you want to tweak coil length (cutting it down) instead.

Again most of these coils needs to be calculated then built and tweaked. The coated wire on the air core coil is wrapped tightly thus provides a higher inter wind capacitance which impacts the coils resonant frequency, the looser the winds (spread out) reduces this capacitance. There are websites that offer coil winding apps to allow you to enter the variables and get wire length and form size.

[Hoppy]

BTW, the 37.5M or 1.8Mhz is the DX frequency for ham operators, makes you go hummm don't it? Don't believe me google it. I wonder and have to ask, is he power these things from his Transmitter? local hams can run 1500watts typically. Most of these guys are potentially running more and have radio backgrounds.

http://www-antenna.ee.titech.ac.jp/~hira/hobby/edu/em/dipole/

http://en.wikipedia.org/wiki/160-meter_band

More than possible!