two box

[kece hon]

disconnect the coil from PCB,

put scope on Rx coil withouth C1 = case 1 and with it = case 2. What amplitude you have at 1 m ?

i think it was ZERO
but ill test it and post the reading
Thank you

[kece hon]

disconnect the coil from PCB,

put scope on Rx coil withouth C1 = case 1 and with it = case 2. What amplitude you have at 1 m ?

I couldn't get it to resonate although i put several values of capacity
i only got the resception to about 1khz - 26khz its oscilating very much whatever capacity value i put
i did follow one recommendation to put 0.82uf on both sides to get near resonance

This is the scope readings with cap 0.8uf on TX and none on Rx


Thanks for your help

[GeoMax]

Hello,

It might be helpful if we could take a look at your coil setup and settings. Do you have a photo of it? We might see something that's wrong with your setup.

[pito]

readings with cap 0.8uf on TX = and where is 120 V ?

[pito]

This is the scope readings = very bad, = what you have on IC#G pins 8 and 9 ?

[pechkata]

readings with cap 0.8uf on TX = and where is 120 V ?

In practice, the virtual work is virtually invisible.

https://www.youtube.com/shorts/wWnFBskDe-0

[algan]

For this circuit, an inductance of 15 millihenries and a capacitance of 470 nanofarads were required; try these values—or possibly 390 nanofarads—within this range. Ideally, the capacitors should be rated for 630 volts.