pinpointer

[pipdip]

Hi all, Can any one help, original coils are 9 ohm's and i.5 ohm's five inch's round I want them
to be 2 inch's round I tried fine wire at the same ohm's no good kept toning all the time so I increased the winding's and made them 16 and 4.5 ohm's, and then it worked to a fashion. What happens is on full threshold it will tone, but all the time won't release. Any ideas please.
pipdip.

[Carl-NC]

Normally you want to match the inductance, not the resistance. Can you post a pic of the original coil?

[pipdip]

pinpointer coil

Hi Carl. Thanks for reply, It's fine now, what threw me was I had it working only because the leads were only inch's from the circuit board, but when I hooked It up on original lead length
it threw a wobbly. I cut the lead length right down and It's ok now. Arthur

[peti1]

Hi
Seeking a detailed circuit diagram used pinpointer description!
Thanks in advance!

I do not speak English, I wrote google translator!