NEL Tornado DD 13" Search Coil Garrett AT-PRO, AT-GOLD, AT-MAX Metal Detectors

Description: outlaw A FULL SERVICE, MULTI-LINE, STORE FRONT, MICHIGAN DEALER OFFERS THIS: 2023, 13" NEL TORNADO COIL At Pro Stock Metal Detectors, I have always accepted trade-in metal detectors from my customers. I carefully inspect and test every unit, and only the best examples are sold in the online sites like this one. The reason I do this may actually seem self serving. I simply want to avoid long distance problems. The one area where it is most expensive to fight with frustrating issues, is where, and when, shipping is involved, especially at the cost of freight today! If I go to sell a used coil, it must be fully examined and tested. It is not simply tested with a multi-meter it must be tested on an actual metal detector! One thing I check is the overall condition of the coil cord, also, the coil mounting ears, plug assembly, and all sealed points. A search coil can look brand new and actually be no good! For example; on a bad coil, I start inspecting the coil cord starting at the coil, working my way up the cord. Did you know coils have a natural predator to worry about? That's right, if you were a search coil you would tremble at the site of any sized cat! Cats love to sink their teeth into coil cords! Especially, if the coil has been swept through fragrant vegetation or around any place where other critters have left a scent! Same is true for other animals like raccoons and puppies! Their needle sharp teeth marks are nearly invisible! Search coil cords are not replaceable in most cases. The wires on a search coil enters the coil through a watertight compression fitting with a spring like strain relief fitting on the top of the coil. This fitting is not a coupling, the coil wires continue on into the coil where the wires are soldered to a shield connection, a transmitter winding, and a receiver winding. In most cases, the fine wire windings are encased in expanding foam or rock hard epoxy to give strength and stability . . . they do not come apart for service. 1. All coils are tuned or 'trimmed' (Ground Canceled) for the proper coil sensitivity at the factory (PRE-SET) ground cancel. 2. By the the user (MANUAL) ground cancel. 3. Or a slow continual automatic tuning, (AUTOMATIC) ground cancel. This is a process that is handled by the actual detector the coil matches. This is another reason we test coils on an actual detector. This is the only way to be sure if there is a problem, the culprit is the detector, and not the coil! A search coil is very similar to an amateur radio antenna. It must be frequency matched in wave length to the transmitter. If it is out of alignment, in one direction or the other, the performance will suffer from poor depth, or with the other possible problem, the power may not even reach the coil! This can create a power back up on the circuit board itself causing serious damage. A search coil must match the detector it is to be used on! It must be a match for the exact model not just the make. If the coil plug will not match the detector plug, there is a good reason! Many older coils may have been promoted as "Waterproof" but with age, the seams and the cords can crack, so every thing should be carefully inspected. If a new coil is promoted as waterproof that is NOT for a lifetime. NEVER use ridged fasteners to tie the coil cord to the detector stem. Fasteners such as plastic wire ties can ruin a coil over time! These rigid fasteners will create a hinge-point which will break down the wires, and the internal shielding, from flexing. Even nothing more than vibration can destroy the cable from the inside! Use velcro strips or even electrical tape, anything with some give. WE INSPECT FOR ALL THESE THINGS This coil is an 13 NEL TORNADO DD COIL For Garrett AT-Pro, AT-GOLD, AT-Max A "D-D" coil gets its name from the coil winding's lay-out. On a D-D coil, the transmitter winding and the receiver winding are shaped like capitol "D's" laid back to back. This creates a full -depth hot spot that runs from the toe-to-heel All the way down the center. The DD coils will actually go deep all the way down the full coil length! No need to overlap for full coverage! This coil is perfect for hunting vast beaches and farm fields for deep coins and relics! This coil can reach large targets several feet deep depending on the target size. I have been a metal detector dealer since the late 1960's and I can assure you that this detector is working correctly in every way. A search coil must be built with a very tight frequency match for each detector application. A perfect wave match assures the user of the greatest potential depth (or field range), the greatest ground cancel control, and to protect the detector's final output circuitry! It is an exacting science! In the past, one of the well known mail-order hustlers, promoted a after market coil boasting "improved depth" . . . NOT! They were so far miss-matched to the detectors, that the major companies threatened to void the detector's warranty if they were used! Getting it right is that big a deal! Better Ground Cancel, Stable Operation, Greater Depth, Better Pinpointing, Target ID Accuracy. At Pro Stock Detectors we are a dealer for: Whites, Garrett, Minelab, Fisher, Tesoro, Falcon, Bounty Hunter, Detector Pro, Deus XP, Makro Racer, Makro Kruzer, Makro Simplex, Head Hunter, Head Hunter Pirate, Teknetics, Vibra-Tector, Vibra-Phone, Equinox 600, Equinox 800, Multi Kruiser, Vibra-Probe, Bullseye, Garrett Pro Pointer, Garrett Gold Pans, Keene Gold Pans, Keene Sluice Boxes, Miners Moss, Gold Sniffer Bottles, Crevis Tools, Gold Classifing Sieves, Copper Gold Pans, Gold Concentrators, Gold Concentrating Blue Bowl, Estwing Rock Hammers, Estwing Picks, Pro Stock Stainless Sand Scoops, Sawtooth Diggers, Lesche Diggers, Relic Shovels, Gold Scoops, Black Sand Magnets (aka Gold Magnets), Prospecting Picks, Hydro-Air Hookah Systems, 3-1 Diggers,Magnifier Loupes, Gem & Rock Books, Lortone Rock Tumblers, 4-Step Rock Polish Kits, Coil Covers, Search Coils, Coiltek Coils, Ring Sticks, Display Cases, Battery Holders, Chargers, Sand Scoops, Sand Sifters, Gold Sample Bottles, Head Phones, HP-30, Whites, Koss, Garrett, Grey Ghost, Jolly Roger, Black Widow, Weapons Detectors, Western & Eastern Treasure Magazines, Lost treasure Magazines, Treasure Books, Treasure Price Guides, Treasure Hunter's Aprons, Goodie Pouchs, Ground Probes, New and used equipment. The Oldest Treasure Shop In Michigan! We will not sell you the wrong stuff! IN MICHIGAN THE GOLD RUSH STARTS HERE! Visit us online key word prostockdetectors

Price: 120 USD

Location: Plainwell, Michigan

End Time: 2024-09-20T21:50:52.000Z

Shipping Cost: 12 USD