Quote:
Originally Posted by FrancoItaly
I do not know if there is a special frequency for the "phenomenon" and more specifically for gold. As for my lrl we can talk about a range of frequencies, in fact these combinations are good, L1 = 3 turns and C10 = 22pF, L1 = 3 turns and C10 = 10pF up to the maximum frequency, L1 = 2 turns without capacitor (there is the parasitic capacity of the transistor emitter junction).
I'm also not sure that the phenomenon emits this frequency or that an external transmitter, such as a radio or TV station, is needed.
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Until now at home I realized reaction of ringing doorbell and almost all bulbs at my home are led, but in one room there are two led bulbs from the brand Hyundai, but different model. When I put them on there is reaction of your lrl. I dont have spectrum analizer up to 90 khz to see what frequency thay are emitting. I need something like this with bigger bandwidth
https://image.ibb.co/iyM6r5/Screensh...2_12_03_27.png