Big Tesoro Coil

[shanegalang]

Is the big coil a 9X12? Will it work on a Cortes? I cant find it anywhere online, how much does it cost and where can I get one? Thanks

[goldentruth]

If you call the very friendly and patient people at Tesoro Co. in Prescoyy,Arizona USA They will be glad to refer you to a distributor in your area etc. 1-800-528-3352 or 1-928-771-2646 By me "the Miner's Cache" is my distributor I go to in Redding, North/California who carries Tesoro.(530) 410-3122 "Tell them: Friend- Don From French Gulch Cal Sent ya for info. (Great Customer Service!)

[goldentruth]

Hello again, I found my Tesoro brochure from Miners Cache Store (Who might do mail order but you have to phone them (530)410-3122. I saw on the back cover, Announcing "More Heat". Tesoro 's High Output Technology or H.O.T. Coils covering more ground THE "3x18" WIDESCAN H.O.T. Cleansweap design gives tip to tip sensitivity over the entire length. Lists $199.00 (lower pole & Scuff). (They could probably send you a fax on info.) Good luck friend. Don from F.G. Cal

[shanegalang]

Hello again, I found my Tesoro brochure from Miners Cache Store (Who might do mail order but you have to phone them (530)410-3122. I saw on the back cover, Announcing "More Heat". Tesoro 's High Output Technology or H.O.T. Coils covering more ground THE "3x18" WIDESCAN H.O.T. Cleansweap design gives tip to tip sensitivity over the entire length. Lists $199.00 (lower pole & Scuff). (They could probably send you a fax on info.) Good luck friend. Don from F.G. Cal

Thanks for the info Don, I was mistaken, it's a 10X12 that someone loaned me. I havnt tried it yet but need to see if it will work with my Cortes. I will deffinitely look into the coil you mentioned. Peace, Shane

[GibH]

They do make a cleansweep that will work with the Cortes, but the H.O.T. coils are for newer 4 pin models (Cibola, Vaquero and Tejon) and are hirgher frequency.

[froggy38383]

This link might be helpful to you.

http://www.tesoro.com/product/coils/ 12" x 10" Concentric(COIL-12x10C-SW)

[shanegalang]

This link might be helpful to you.

http://www.tesoro.com/product/coils/ 12" x 10" Concentric(COIL-12x10C-SW)

Thank you froggy, very informative and book marked for later

[Smudge]

I have also been told by a technician at Tesoro that if you change the coil size, you ought to send in the detector to have it recalibrated to the new sized coil.

[GibH]

I have also been told by a technician at Tesoro that if you change the coil size, you ought to send in the detector to have it recalibrated to the new sized coil.

Not really feasible if you are using several different coils.

[Monte]

I have also been told by a technician at Tesoro that if you change the coil size, you ought to send in the detector to have it recalibrated to the new sized coil.

Smudge, that would be a correct suggestion from their technician, but you need to send in the detector as well as all search coils you plan to use with it.

Not really feasible if you are using several different coils.

GibH, it is actually VERY feasible, especially if you are using any Tesoro models that you do not have control over the Ground Balance for every mode.

I this case, the post was started by 'shanegalang' who asked about using a larger-size coil oh his Cortes. I had a Cortes (3 of them, actually, when I was a dealer) here in Oregon and worked it in some Utah sites as well, and to compliment the stock coil I also tried a CleanSweep, a 10X12, and the thin, black 7" coil from a Shadow X2. Comparing performance of these coils to evaluate any usefulness of the Cortes' Target ID and depth performance I hunted two ghost towns, and now fewer than seven (7) older parks known to produce early silver coins.

Only the stock coil worked, except in one ghost towns and one park where it falsed a lit in the Discriminate mode, but the other coils, especially the larger coils, didn't work well anywhere. The 7" concentric worked about half-the-time. If I hunted in the All Metal mode I could use any coil without a problem because I had control over setting a functional Ground Balance.

That's not the case with the Discriminate mode with relies on a preset internal trimmer. With the larger coil and occasionally the 7" coil, the Disc. mode's GB references was too negative and the detector falsed when the coil was bobbed and lifted away from the ground, or if I swept over a depression or plugged hole.

For decades, Tesoro has encouraged anyone with a falsing problem when using one or more accessory coils to send the detector and all coil to then for calibration. Unless the search coil is defective and way out-of-spec, the 'recalibration' is no more than tweaking the GB trimmer, using each supplied search coil, so that all of the coils will work w/o falsing. All coils are needed due to the design approach Tesoro uses with their coils and they can vary a fair amount which will shift the circuitry performance and that means a Ground balance adjustment is called for.

Most of their models are 'turn-on-and-go' so it is important to send them all to the factory, or have a knowledgeable dealer or savvy user make the necessary GB adjustments. Most of the models with Disc. mode GB adjustment tied in with the manual All Metal mode setting can be set to work okay. Those with the preset Disc. mode GB, such as the Cortes, should be set for all coils a user plans to work on that model.

Monte

[froggy38383]

Lots of good info in this post, I was going to buy a 10 x 12 for my Cortez, I will reconsider.

[Smudge]

Interesting reply Monte.

When I asked the guy I spoke with (can't remember his name), he seemed to me to be suggesting that on detectors with preset ground balance, every time you change a coil, it would need to be recalibrated.

Seemed odd to me, Maybe he only meant when going to a larger coil from the stock coil.

I don't know.

Reminds me of what Oddball said about tank repairs in "Kelly's Heroes": "I just ride in 'em, I don't know what makes 'em go."

[Allcav]

If you want to talk to us here at Tesoro, DO NOT CALL THE 800 NUMBER! We are open Mon-Fri 8am -4:30 pm Arizona time. The 800 number is for ordering catalogs!