Baracuda Kit problems

[Halcyon]

Hello,
Excuse my noob enquiries as i see that this forum is full of information but i have been working on this project for a while and i am still certain there is something wrong.
So i have built the kit just using the silk screen as no schematic was included. I have also made a 16cm coil with 0.5mm enamel coated copper wire with ~25 turns.
My problem is that when i turn it on, i get a load beep if i put it near a set of steel pliers, but i get nothing with coins, rings or anything smaller.
I also dont think that the two blue trimpots are having any effect on the output so a guideline on what these should change would be appreciated.
if anyone could let me know which components might need to be tested or replaced please let me know as i would love to get this to work =[

[Koala]

Sounds like you are not too far of.

Make sure all your power rails are correct

Make sure nothing is getting hot. Especially the transistors.

Seeing as a large object is seen. Try setting the offset first. Keep moving the the object further away until it's just seen then adjust the offset until it's louder. keep repeating until it's detected at the greatest distance. It's been awhile since I built mine but I think it's almost at one end of it's travel.

Next you will need to set the delay to see small items and gold.

http://www.geotech1.com/forums/showt...=baracuda+coil