Kapanadze Cousin - DALLY FREE ENERGY

[magpwr]

Today I have been trying to produce the flashing lights effect that we see in URFA's videos. I started by taking the Kacher 24V supply from what he calls the synchronisation point 'B' (shown on a previously posted schematic from URFA) via a series connected 148uH choke.  This did not appear to show any effect, so I removed the 470uF electrolytic cap that I had on the output of the PWM / push-pull supply filter, leaving 470nF cap across the output. This started to show a little response as I moved my hand across the antenna and saw the lights varying a little in brightness. It was not until I started altering the frequency of the Kacher with a ferrite rod insert that I saw the maximum effect and this was with the kacher operating at around 950KHz, where the effect peaked. The effect was not as great as seen on URFA's video but the Kacher was having a pronounced effect on the brightness of the bulbs. My grenade coil frequency 1/4 wave is as previously reported - 1.316MHz and PWM is running at 21.9KHz. I don't think that I have so far optimised the value of the series choke for max effect. I suspect that URFA used one of his green high perm toroids for his choke. I have noticed that the amplitude of the Kacher waveform increases a little when the device is connected to my domestic earth. My power supply is isolated from earth.

hi Hoppy,

I am glad you have achieved the required effect on the bulb using kacher by tuning with ferrite rod.

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The next 3 days from Friday i shall commence testing again.

[Hoppy]

Thanks Hoppy. I use a 10k pot and 300ohm to ground. But except  that I am not satisfied of the output voltage, after about 2.5A katcher starts to raise current up to burning the transistor if I don't limit it by the pot.

Jeg,

I did find that unless I use 4V7 or 5V6 zeners (base to emitter) I cannot get good operation.

[Jeg]

Jeg,

I did find that unless I use 4V7 or 5V6 zeners (base to emitter) I cannot get good operation.

I have bought some at 5V and they are in place. Perhaps my choke is not the appropriate.
I was looking the peaks from mosfets on the choke just behind them. It needs diode before feeding katcher as the thin pulse imposed on 24V, go up and down for 1-2 cycles before it cease down.

[Hoppy]

I have bought some at 5V and they are in place. Perhaps my choke is not the appropriate.
I was looking the peaks from mosfets on the choke just behind them. It needs diode before feeding katcher as the thin pulse imposed on 24V, go up and down for 1-2 cycles before it cease down.

Jeg,

I have found that any toroidal choke around 100uH or higher will work. The choke will prevent the Kacher pulling too higher pulse current and diverting current from the push-pull / PWM. If this choke is shorted, the load bulbs will dim noticeably. Below is a scope shot of the waveform taken on the cathode of the series diode to ground after the choke. The critical bit is getting the Kacher frequency tuned for the maximum effect. In my case its around 950KHz. Where have I seen that frequency mentioned in past posts?

[itsu]

Hi Itsu. I had thought of this possibility already and tried disconnecting the scope ground clip
lead earlier but leaving the scope probe tip connected, but the waveform is still similar to the way
it is now. Also the bulb is glowing quite a bit brighter now than on the previous day. Something
has changed from a day ago, but all circuit connections are not changed (it is a simple circuit setup)
and the kacher output waveform has stayed about the same. I don't have an explanation for the change
in output waveform as of yet. Also, moving the 'antenna' winding around only varies the output waveform
voltage by about 10V to 15V peak or so, so that is not it either. 
All the best....

P.S. Itsu, if you get the chance at some point, if you can show a scope shot with scope probes
at same locations with only kacher driver on and a 10W to 25W bulb or so across the grenade with earth ground connected,
I would be interested to see what you have for waveforms. My blue scope probe was 7 or 8 cm or so away from
the top winding of the tesla coil.

P.P.S. Itsu, you are right that the bulb should not light at only a few volts RMS. I guess the likely explanation
for my different waveform a day ago may well have been a poor connection or incorrect connection of my scope probe.
The waveform I am getting now should be the right waveform.

Hi Void,

here the screenshot of that setup,

yellow is across the 25W / 220V bulb,  one side grounded
blue    is 5cm away from the antenna

Only the Kacher is running at 25V

Regards itsu