Hi Bush,
With meter set to the K range 0.086 is 86 ohms so in the ball park with the shield have you got a 3mm break so the detector is not seeing the shield as a shorted turn if it is that will kill the sensitivity keep at it I have been playing building coils for since 1976 and still learning.
Regards, Ian.
Thanks for the heads up IB Gold i really appreciate it.
I`m reasonably clued up on the basics on Coil re-builds and Faraday Shields now but by no means spectacular on the subject.
I`ve refined my solder weld joins down to a small tee for litz wire connections and trying to avoid excess solder as small targets.
I came up with a small sandblaster idea to knock the enamel coatings off the multi strand fibers and square cut the ends & minimal lead wipe / dip / primed all the tips prior any final fixing. Old mate @ Detectronics was saying it is near impossible to match the strands so this solution was the best i could come up with.
What i really would like to know is how the parastatic drain wire actually works and if the RX signal returns through that line.
There is not any information online that i can find about this.
TX / the inner cable wires / RX out the mesh shielding wires inclussive drain wire.
`i` find it difficult to understand but i think relative to the coil windings is the outter is trasmitting & the drain wire is receiving but i don`t really know.
The other old fella is saying that the sdc should be Earthed at the detector end which is from memory how Minelab joined the OEM 8`` coil.
I`m not shore if this other old fella is meaning that the Earth should be connected onto the detector plastic body or just connected to the joining plugs.
On the other hand the F1A4 coil and a few others the drain wire is connected in the base of the coil and it actually seems to work fine.
A strange thought i do have is in this scinario of it is what if the drain wire was connected at the base of the i think RX shielding and again connected Earthed at the top end.
Really interesting stuff all this if only i could see Air bourne Eddys.
The Dark Arts i love it.