Ok, where were we?
First of all, as i mentioned earlier, i am not here to do a complete replication of the Ruslan setup.
I tried it twice and failed, so either i am doing something wrong (most probably), or there is something wrong with the used circuit.
But i want to try to further refine some parts of this setup to gain knowledge, both for me as for others.
If it is found to be off-topic, then feel free to mention this and i will remove any post being off-topic.
i was trying to get the modulated kacher output signal picked up by a distant probe laying 10cm from the antenna like shown by Max here:
https://www.overunityresearch.com/index.php?topic=4471.msg105536#msg105536My Grenade is resonating at 1229kHz (Max method see here:
https://www.overunityresearch.com/index.php?topic=4471.msg105593#msg105593 ) and my new kacher secondary is resonating at 1160kHz (with antenna attached) and when elevated some distance from my bench it could be tuned to resonance at the same frequency as the Grenade (1229kHz).
The Push-Pull was tuned to around 1/50th of the kacher / grenade frequency so around 24.58kHz.
Both the Kacher secondary and the Grenade are made up of 37.5m of copper wire.
But still i could not see the modulated kacher signal Max has shown, nor do i know (nor Max) that this is needed for a self runner.
Anyway, what i tried next is to sync the push-Pull frequency to 1/50th of the kacher signal by using some frequency divider circuit.
Verpies tipped me to use of some TOSLINK optical fiber receiver like this one:
https://toshiba.semicon-storage.com/info/datasheet_en_20140403.pdf?did=14714 found in some later audio / tuner equipment.
This will completely isolate electrically the kacher signal from the divider circuit.
I found a FCR684205R optical link receiver in my junk box:
https://www.farnell.com/datasheets/3816994.pdf and found that a normal 6mm red led fed with a 1250kHz sine wave was able to produce a nice square wave pulse at 1250kHz
Firing up the kacher and attaching the red led to a piece of twisted wires with 1 side to a copper tape just beneath the Antenna and the other piece to the base of the kacher drive transistor (or ground) shows a nice lighted up led, see picture:
When sliding the led into the optical receiver running on 6V, it shows a nice square wave pulse on its output at the same frequency as the Kacher was running on:
I now could further process this galvanic isolated Kacher signal to feed it into a 50:1 divider which will be next
Itsu