Minelab X-TERRA Forum

Hi People,
My 10" x 5" DD coil has given up the ghost....I am guessing some moisture in it (detecting in wet grass, or perhaps some sneaked in when I was cleaning it, at some stage). However, detector wasn't groundbalancing properly, and when I did get it to balance (through perseverence), it would eventually go back to giving improper signals, ie. numerical ID and tonal ID both lower than should be...low range targets did not register, either by No. or audio. At first I thought it was the detector (X Terra 70) which has had a lot of use, and doesn't owe me a thing (but I was still sad at the thought that it might be dying)...thought I would try a different coil (have had the 10x5 DD on for ages) and the detector went back to being normal...i.e. It showed correct ID and gave correct tones from startup....soooo, I presume it is the coil which is the problem. I want to replace the 10x5 with another 18.75kHZ frequency coil.

My question to anyone who has experience with the high frequency coils is, which one do you like best, and why? My understand is that I have 4 yto choose from: 9" concentric; 10x5 DD; 10.5" DD; and 6" DD.

I welcome, and thank you in advance for any input which you may wish to give.

If your not short on spare $$, get the 6" DD as it's waterproof and replace your 10x5 with a new one or send in the old 10x5 to Minelab for repair.

When the ground is wet or it's raining I use the 6" DD, on a sunny day with dry grass I use the 10x5.

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To see a sample of the things I found since January 2010..... visit >>https://sites.google.com/site/mdfinds/

Current Detectors
E-Trac (my to go detector)
X-Terra 705 with 3 coils (6" DD 18.75kHz, 9" 7.5kHz, 5x10 18.75kHz)
Pro Pointer
AT Pro

2012 Finds
50 Silver Rings
1 1802 One Cent
1 1816 One Cent
1 1818 One Cent
1 1787 Copper Coin (Connecticut)
1 Shielded Nickel 1869
2 Barber Dimes 1898,1911
1 1887 Liberty Seated Dime
2 1964 Silver Dimes
1 1963D Silver Dime
1 1960 Silver Dime
1 1953 Silver Dime
1 1952 Silver Dime
1 1952D Silver Dime
1 1951 Silver Dime
3 1946 Silver Dimes
1 1917S Mercury Dime
2 1923 Mercury Dimes
1 1939 Mercury Dime
2 1941 Mercury Dimes
2 1943 Mercury Dimes
1 1943D Mercury Dime
1 1944D Mercury Dime
1 SLQ -- no date
1 Silver Quarter 1962D
1 Silver Quarter 1952
1 Silver Quarter 1948
1 Silver Quarter 1944
1 Silver Quarter 1940
1 1967 Half Dollar (40% silver)
1 Walking Liberty Half Dollar 1935S
1 14K Gold Heart Pendent
1 14K Gold / 925 Silver Ring
1 14K Rose Gold Ring
2 10K Gold Rings
2 Silver Chains
1 Silver Key
$764.20 in clad

Thanks BHL - your input is appreciated. I guess I can only afford one new coil at the moment...was just wondering how people felt about the different coils in the 18.75 range.

For general detecting, I'd stick with the 5x10 furious. I love the 6 inch, but it lacks ground coverage. I also like the idea of the concentric, as you get better audio feed back. I'm not a fan of the 10.5 round. Apart from being toe heavy, it doesn't separate anywhere as well as the 5x10.
Mi9ck Evans.

FT, I run my 5x10 in wet grass often enough. No problems. Clean in a running hose. No problems. If you were having problems with the coil already I would send it to ML, especially if it is still in warranty.

Just a thought.

Jeff

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TURNMASTER
Does "Just my two cents" have the same meaning on a treasure hunters forum?
X-Terra 705 & AT Pro

Oldest coin; 1895 Indian Head Penny

I use the 6" DD coil. For me it is a killer on small Gold and Silver. Water proof, yes it doesn't cover much ground but will make you go a lot slower in your search. the other coil I use is the stock 9" coil also water proof and WILL find small gold and silver.
If it's not water proof I do not use it. Also I put a small bead of silicone around the coil cover to keep out the fine sand when I beach hunt You can try the silicone around the coil covers on reg coils this will help a lot.

Furious T
Last year i dropped my cell phone by accident in a swimming pool..... I took the phone and buried it in rice inside a sealed bag for two full days to suck out any water/humidity ..... remarkably the phone started up and is still working fine today........ worth a try on that 5x10 coil
Joe

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New River, AZ

Fisher Gold Bug 2



Edited 2 time(s). Last edit at 03/18/2012 12:12PM by Joe Z.

Thanks All, for replies....good info there and good suggestions to try re "old" coil....I have used the 5 x 10 probably more than any other coil, and as I haven't bashed it or dropped it, I am assuming that it is moisture in the coil which has made it go the way it has. It would be well out of warranty now, so I dont know if it is worth sending it to Minelab...postage and "fix-it-time" could well come near the cost of a new coil. Used my 9" 7.5kHz today and the detector seems to be working fine...ground balanced ok and didn't "go out of tune", so I am still thinking it is the coil. Drying it out (or trying) is going to be my first option.

Thanks again to all who replied...appreciate it.

Pete

Let us know if the drying it out works.
Joe

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New River, AZ

Fisher Gold Bug 2

Hope the drying works .. good luck and keep us posted !!