"Quantum Receiver".

[skywatcher]

This is Lidmotor's coil. I can not see which wire size he used but the size of the coil is not so much different from my coil.
Maybe it's slightly bigger. But this should not matter because it can be tuned.

[synchro1]

 Jonnydavro's L-3 coil is 620 turns of 26 swg wire.

62 of 26? Further evidence of "Mayan Synchronicty"? The "Runes of Saknussemm"? (Fictional character in Jules Verne novel) We may need the lagina brothers!

[skywatcher]

I got some hints how to measure the SRF (use a 1-turn sensor coil around the coil) and now i'm at least seeing a resonance... which seems to be slightly above 20 MHz so i have to make the coil a little bit bigger.

[synchro1]

I got some hints how to measure the SRF (use a 1-turn sensor coil around the coil) and now i'm at least seeing a resonance... which seems to be slightly above 20 MHz so i have to make the coil a little bit bigger.

You're on the right track. Dr. Stiffler makes mention of a "sensor coil". Keep it up, it's getting really exciting. Can you upload a video? They may act as "Crystal Receivers" for a Quantum radio club.

I will buy a scope if you can show me how you made one that works. A lot of people would benifit from that kind of instructional video.

[skywatcher]

I made a new coil with 32mm diameter. Initial length was 53 mm.  SFR was 8.08 MHz.
So i removed some of the windings... at 40mm length it was 9.48 MHz...
Now i'm at 12mm length (almost nothing left  ) and it's at 11.04 MHz.
But i'm getting a second peak slightly above this frequency... 


Maybe i will go back to the 12mm coil.