Building Wolf Treasure [Tesoro Lobo]

[Ruben2000]

I want to run it Tx at 17500Hz and Rx at 18100Hz

[Ruben2000]

I want to build the coils using the coil generator.

[Ruben2000]

I want to use the FOMA data:

RX: 51 Ohm. with a 10nF capacitor parallel to the winding = 14.65 Khz.

TX: 11.9 Ohm. with a 42nF capacitor parallel to the winding = 17.88 Khz.

Is this information correct?

[Emersonpaz]

Hope it has good results. looks like a good project

[dgm]

Hi Ruben, what are the inductances of the TX and RX coil?

[Ruben2000]

Hi Ruben, what are the inductances of the TX and RX coil?

Very good question dgm.
In several diagrams I have found the following data assigned for the coils:
TX = 1.33mH, 11Ohm., 0.28mm., 65 turns.
RX = 10.97mH, 50.5 Ohm., 0.22mm., 170 turns.

But with the FOMA data using the coil generator I get this data:
TX = 17.88Khz + 42nF (+ 10nF in the coil generator); I get an inductance of 1,523mH.
RX = 14.65Khz + 10nF in the generator; I get an inductance of 11.8mH

But here FOMA clarifies that it does not matter to measure inductance; but with the frequency and the resistance of the coil we can make our coils of different dimensions.

[dgm]

Hi Ruben, I think there are errors on the post you wrote, TX 1.33 mH with 110 hm, it seems a lot to me, on what diameter? What kind of coil do you mean (DD - OO- Concentric)?

[Ruben2000]

Hi Ruben, I think there are errors on the post you wrote, TX 1.33 mH with 110 hm, it seems a lot to me, on what diameter? What kind of coil do you mean (DD - OO- Concentric)?

TX = 1.33mH, 11.0 Ohm., 0.28mm., 65 turns.
RX = 10.97mH, 50.5 Ohm., 0.22mm., 170 turns.

[Ruben2000]

I am running a DD coil.

[Ruben2000]

Hi friends I made the coils and ran them with the coil generator with this data:
TX = 17.83Khz + 40.9nF (+ 10nF in generator)
RX = 14.62Khz + 10nF in generator.

Other data obtained from the coils:
TX = 51 turns, 0.255 mm. (30AWG), diameter 207mm., 51.1 Ohm., 1.588mH.
RX = 145 turns, 0.202 mm. (32AWG), diameter 207mm. , 11.03 Ohm., 11.615mH.

[Ruben2000]

I put a 52nF capacitor in TX to tune to 17500Hz.
For RX a 6.48nF capacitor at 18100Hz.

[kt315]

good. continue. getting near to Tejon SEF
Rx - 160 turns , 0,20 d.
Tx - 40 turns , 0,38 d.

[Ruben2000]

My measurements.

[Ruben2000]

Friends, I don't know which capacitor should go on C7.
In some schemes they say that it should go 10pF in others 3.3nF-10nF.
What will be the right thing to do?

[Ruben2000]

I can't get GB to work.
Any advice would be helpful !!!!