IDX-PRO+VDI

[ricalbertvig]

hola la idea es que los ohmios y los mh de la bobina estén dentro de los rangos DE los ohmios ( 1.8 ohm y 0.590 mhz, mi rx 112 ohm) hay que usar un medidor de mh.. he usado hasta 3 medidas distintas de alambres tanto en tx como rx ... logrando igual 45 a 50 cm para una moneda... lo que he notado con mi experiencia que no importa cuantos alambres se usen en una misma bobina...he usado hasta 3... pero respetando los valores(ohm y mh) rx en y tx... lo hice asi porque no encontré los alambres acá en mi país--- la bobina DD SE PUEDE HACER DEL TAMAÑO QUE SE QUIERA...LO IMPORTANTES ES TENER A LA MANO UN MEDIDOR DE MH.. RASPAR UN POCO EL ALAMBRE A MEDIDA QUE SE VAN DANDO LAS VUELTAS, PARA ir buscando los valores de los ohm y los mh.. esto en DD NO HE PROBADO CON OTRAS BOBINAS...

[6666]

ricalbertvig

I do not speak English

Maybe write an explanation about your coil specs in your native language and we can use google translator ?
I think laps means turns. the rx coil has 255 turns with a null voltage of .64 millivolts ?

[ricalbertvig]

use two wires .. measures if a cable is thicker lower the resistance is ohm value .. if the cable is thinner the resistance is of greater value,,, so use 2 wires tx values to reach a value 1.8 ohm and 0.590 .. forgive my English .. I do not speak English

[gtdavid]

could some one explain those coil specs to me ..
is he using multiple wire sizes for one transmit coil?

[ricalbertvig]

Yes

[Koala]

tx 12 laps over 22 laps 0.74 0.64 and 0.18 ... rx 255 laps null 0.64 mw

10" 27cm DD ??

[ricalbertvig]

tx 12 laps over 22 laps 0.74 0.64 and 0.18 ... rx 255 laps null 0.64 mw

[mohandes]

Coil DD

data for coil?and the voltage of null ?

[ossamaussama]

i have question

why when balanced detector with ferrite in all metal mode it also reject large piece of zinc ??? with discrimination set to zero

[gtdavid]

Yes that would be great. As I am about to build myself a dd coil.

[Koala]

Coil DD

What specs and size

Preforms better than my 10" DD. Can get close to your performance by tuning the RX but it then becomes unstable to use.

[ricalbertvig]

Coil DD

[gtdavid]

what type of coil are you using?

[Koala]

https://www.youtube.com/watch?v=TzLaF6Fvqmo
my results

Well done

[ricalbertvig]

https://www.youtube.com/watch?v=TzLaF6Fvqmo

my results