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Re: Akula, Ruslan, Stalker, device discussion and replications. « Reply #407 on: 2023-07-15, 10:04:41 »
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Quote from: NickZ on 2023-07-14, 23:12:35
Itsu:
Thanks for the info.
My kacher also runs at around 1,1MHz. So, not too far off...
Interesting that your 37.5 meter kacher secondary runs best at 2MHz, by itself.
Stalker mentions that everything needs to be tuned to the 37.5M grenade. Why, I don't know, yet.
Including the kacher frequency to match the antenna coil frequency. But you find that that may not be possible?
Maybe a different harmonic is needed, instead?
I'm still trying to understand why what Stalker says does not compute. Hard to get anywhere like that...
NickZ
Nick, what i find interesting is that my working frequency (2715kHz without antenna) when in a kacher circuit is somewhat close to the calculated value (3163kHz) of a secondary as caluclated by that java calculator here:
https://www.overunityresearch.com/index.php?topic=4471.msg105505#msg105505But that the free standing resonance of 2054kHz (pinging it with a loosly coupled square wave and measuring the ringing with an attached probe) is so much lower.
I guess the probe (3pF / 10M) is loading it that much to cause that.
The antenna has a big (capaitive) influence on the kacher working frequency causing it to further drop in frequency (1160kHz) and thus totally disturbs the 37.5m length resonance frequency.
So to me this means that the 37.5m lengths as mentioned are just a starting point or reference point for building the coils (it also could have been any other random taken length IMO).
Itsu
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kacher sec result.png
* kacher sec result.png (12.18 kB, 442x520 - viewed 250 times.)