I need help with idx pro silverdog red pcb!!

[Tibuck19]

Being winter here, I am re visiting the IDX Pro ( red board), In all metal, the search depth is good, 34 CM on Canadian and USA Penny, however it does not seem to want to GB ( Using a ferrite )I tried a 20K,50k and 100K pot, it only seems to want GB at the very end of either Pots, Also it has no discrimination, If I set the 10K pot to its highest setting it will block out everything including clad. Any idea's. The coil I am using is one that Don made for me and I also tried a whites Blue max 256. Also the volume is very loud if I have headphones plugged in, Almost un useable with head phones.

[chiuino]

Very nice box design! Have luck!

Thank you, in the next few days i painted it in black! See you

[chiuino]

8x AA battery work well. Using headphones I get will over 20 hours probably near 40 but I change after 3 days detecting.

Thanks Koala for the info but i want to recycle what i already have

[Koala]

Hi Nándor! This is my new unit assembled and ready to try it out!
For now I have taped two 9 volt batteries, then if everything works, I'll see where to put them!!!
Crossfingers
[ATTACH]39824[/ATTACH]

8x AA battery work well. Using headphones I get will over 20 hours probably near 40 but I change after 3 days detecting.

[Nandor]

Very nice box design! Have luck!

[chiuino]

Hi Nándor! This is my new unit assembled and ready to try it out!
For now I have taped two 9 volt batteries, then if everything works, I'll see where to put them!!!
Crossfingers

[Nandor]

Hi chiuino. Any news progression with your project?

[chiuino]

Hi Koala! No it is not similar to mylar material (like of balloons)!!! This is much more strong in sense of thickness and it is used for flowers gift package and only one side is conductive! I have wrapped (conductive side internally) that tight as possible and in one side i have wrapped a copper wire tined for about 3cm . Considers that i have inverted a flap of this material for constrain with copper wire and in the end wrapped all with electrician tape. I hope that i made a strong contact between the wire and the shield and that it will remain for long time....i hope

[Koala]

I have never had any success using that aluminium covered Mylar if it's the same as the pound shops sell for camping.

First its its very conductive.

Second it seems to degrade with time.

Third as it creases the covering cracks.

Fourth no mater how tight I trap the tap wire over time the connection degrades.

I spent end quite a lot of time trying different things but failed to get it to work 100%

hopefully your stuff works better

35 cm sounds spot on. You can tweet the RX capacitor for more depth. Great for YouTube air tests but useless in the field.

[chiuino]

Thanks Nándor, homefire, blobber, kt315 finally i have done it
In response to blobber.... in air test 34-35cm 2Euro coin with discrimination value sets to reject medium screw driver. Consider that my room is not wireless signal free and i have iron on the floor.
In response to kt315.... No i do not made shield with graphite because unfortunatly i do not have found it!! I have found in the store flowers a string of some sort of plastic that had one side conductive and from tests i have done i see that in my case the response and discrimination are better than aluminum foil and i decided to wrap my coils with this, and finally with electrician tape.
Thank you all and see you with new news

[blobber]

I count three wires per coil, so he was using tape for shilding.

[kt315]

nice... how you will add shielding? i do not see right graphite layer...

[blobber]

Cool. Nice idea! How is the performance of your device?

[homefire]

HA ! I like it. You can see what's going on in there.

[Nandor]

Looks very nice! Hope you find good stuff