TGSL Completed need your advice

[gost373]

Hello, I finished wiring my last TGSL circuit (after several failed attempts,
5 circuits went in the trash!!)
Here is finally one that seems to work, I am attaching the scop images,
recorded with a small DSO138 ,
to know what you think of the reading values and the shape of the signal, the two coils, one which has 7mH and the other 6.95mH.

the shape of the signal is not very beautiful!!


I retained that of 7mH for RX and that of 6.95mH for TX.


The frequency noted for TX about 13Khz.
RX connected to the TX input substantially the same frequency!

I know I don't have the correct coil values.
When powered up and after canceling the coils, it works, distance about 20 cm for 1€
I have the impression that the pot of sense is not working?


Voltage reading on TX about 16V
Voltage measured on D6 with DC position multimeter (-6.45V)
DC4024 square signal on pin 6 frequency (814Hz)


Discri Switch:
Discrimination seems to work!! aluminum ( 2.5cm)
discriminated.


Switch Al Metal I don't know how to fix this!
all rooms ring. So I think that in this mode everything should ring?