IDX-PRO+VDI

[dbanner]

The pinpoint tone is a sign that the detector is working, at least partially.(The pinpoint feature is an all metal channel) and since you put coils with wrong inductance and most likely unbalanced, then the pinpointer will sing)

Try winding the Tx coil first as its inductance is small and will not use up much wire. You can connect the 7mH coil to the reciever but you must calculate a parallel tune capacitor for a RX resonance of 6.59kHz.

Then you can balance these coils on scope and see if the circuit is working. At least you should be able to verify that the detector circuit is detecting a target. Once this is certain, you can then proceed to make the proper RX coil.

Good luck.

[chuubaba]

Dbanner Can variable capacitor be used parallel? What value would be suitable for idx? I used to see lot of them inside old radios.
Thank you

......You can connect the 7mH coil to the reciever but you must calculate a parallel tune capacitor for a RX resonance of 6.59kHz..

[Koala]

the data on page one works correctly if you use DD size and shape thats in the TGSL 101 instructions

TX wire from 0.70 to 35 laps - 0.587 mH - within 1 mF capacitor
RX wire from 0.15 to 270 laps - 35.6 mH - 0033 mF condenser


or for a concentric https://www.geotech1.com/forums/show...concentric+idx

[dbanner]

Dbanner Can variable capacitor be used parallel? What value would be suitable for idx? I used to see lot of them inside old radios.
Thank you

Yes you can use a variable cap, in conjunction with another cap, but it would have to be in the 100's of pico-farad range to be of any use, as far as the old radio caps, you could search the data on those. I think they would be good,They should range in the pico farads. depends on the band and type of radio. Look for the datasheet and pinout info as they carry multiple pins.

Use an online resonance calculator to compute the value of the capacitor.

[gaby_sult]

Dbanner Can variable capacitor be used parallel? What value would be suitable for idx? I used to see lot of them inside old radios.
Thank you

https://www.youtube.com/watch?v=VZSawpu9Ako
https://www.youtube.com/watch?v=XnrStRklcUQ

[markantony]

Hello .
Tx - 45 t. -0,60mm
Rx - 270t. - 0,20mm , for 28 sm coil.
Version -Eduardo .

[gurdal]

Hello to everyone
idxpro Can minelab tone be added?
is it possible?

[chuubaba]

270 turns of 0.20mm etc is difficult to handle. It's too many turns to bind and adjust the inductance for DIYr. Is there alternative to this? Just if thicker wire and least turns vcould make it.

[kt315]

i must work on this fabric https://www.youtube.com/watch?v=6adQvxOugcU

[liekwang]

mister might try using this audio schema mick but I still doubt if I can.

[gurdal]

Is there a Sprint layout file?

[dbanner]

Yes. Search the forum VCO.

[Aney5036]

Hi can some give White's IDX PRO Gerber FileHi can some give

[gurdal]

Hello to everyone;
If there is a minelab vco pcb file for idxpro Please share.

Best regards

[gurdal]

VDI
https://vk.com/video-33752123_456239989