Interesting Phenomenon with DD coil

[pechkata]

There are not any capacitors. I measure the instantaneous current through the coil.
See the diagram.

Detector #1 has never worked above a pulse.

[boilcoil]

OK, I'll stop.

[Detectorist#1]

Hi boilcoil,
Don't be influenced from side noise, please. I will made a second sample at TX-ON time and will add additional resistor in series with TX coil to achieve exponential shape of the TX current according your requirements.

[Detectorist#1]

pechkata, please don't add noise to this discussion!