Tesoro 12x10 Web coil
By Gary’s detecting
Product review

This 12 x 10 tejon coil has been on the market since the release of the Tesoro Tejon a couple of years back, and I must say it has never really appealed to me not only the extra weight but the fact that a high frequency machine such as the tejon is designed for finding small targets in badly contaminated soil, I have always believed a large coil on a highly sensitive machine would confuse things due to the search head passing over several targets at once resulting in audio chaos. This is what I told a friend Kevi when he announced he was going to buy a 12x10 widescan for his Tejon, his mate up in the North has one and was apparently having great results even on small targets.
It wasn’t long before I got a phone call from Kevi to say I was wrong about the coil, and to quote “ get one and see for your self”. His visit had been to an old site mainly looking for a hoard that he believed was in the area, what really impressed him about the 12x10 web coil was it’s  sensitivity to small targets, claiming a handful of Roman coins and fragments.
I decided to try one on my Tejon and indeed Kevi was right, despite the size this coil was sensitive to small targets. Later that week I attended the weekend wanderers rally at Eddlesborough and set up my humble stand, it was really good to put names to faces. I took along the Tejon with the 12x10 widescan coil and set up a simple test for all to try.

A small tub of dirt taken from my Roman site 3 inches deep and contaminated with tiny iron fragments, underneath the tub was a small Roman bronze coin. Out of all the machines tried only one other managed to locate it with a clean signal, the Tejon found it 3 inches above the tub even with the sensitivity set at 2. Jaws dropped and word soon circulated amongst the detectorists. Throughout the day I was constantly showing the same experiment over and over again.

OK you tekkies are probably saying that’s not a fair test, the coin needs to be buried which is probably true, I use this test to quickly evaluate a machines capabilities before field testing, 5 years ago the only machine that gave a slight target response on this experiment with exactly the same soil and coin was the Lobo, so things have moved on slightly.
I took the Tejon to my usual site where one field is badly contaminated with Iron, the machine was a little unstable at first with my standard settings, but with a little fine tuning the Tejon worked like a dream.
 One thing you must remember about this machine settings are very close and a small control adjustment can make a big difference, so you must work closely with the sensitivity and discrimination controls on every field to obtain the best performance.

 During my 3 hour search I had some really small targets, a tiny hammered almost disintegrated with a hole in the middle this coin gave a very clear 2 way signal at about 3 inches deep. 2 roman bronzes, a strap end, and a very nice Roman brooch. Not to mention some buttons and the usual non ferrous junk, I dug 4 pieces of Iron including an Iron ring and buckle.

Summary

Yes a very sensitive and well behaved coil, I can honestly justify paying the price.
A little heavier but well balanced, still lighter than the Explorer and XLT.
Iron identification very good, in fact better than the web coil.
Without a doubt deeper than the standard coils on all sized targets.
Fantastic build quality.
Price £170.00 inc coil cover, cheaper than a hoard hunter !!!

This is the only coil I use on the Tejee now and running the sensitivity at zero puts this machine into a class of it's own.

Tejon finds with the 10x12 widescan coil








The range of Tejon search coils


The optional coils will fit other 4 pin Tesoro's but works best on the Tejon
Tesoro Tejon
Tesoro Vaquero
Laser Trident II  New!

Will also fit but may need re calibrating
Tesoro Cibola
Laser Trident I  New!