Metal Detector Treasure Finds, Pictures and Stories
First Find is a 1904 V Nickel
I was excited when you told me White's was making a "larger than stock" concentric coil for the MXT, DFX and M6. Although the 6 X 10 Eclipse DD and the 14" Eclipse DD 1400 both provide a larger sweep pattern, moderate soil mineralization levels in my part of the Country do not require the ground balancing characteristics of the DD design. For the type of hunting I do and the sites I hunt, a larger concentric design would be a better choice for finding deep old coins.
When I removed the Super 12 from the box, I was impressed with the epoxy filled, spider design. When I connected it to my MXT, I was equally impressed at how well balanced it was. It is a full 12-inches in diameter and weighs only 19 ounces with the coil cover. The first thing I do with any new coil is to make a series of air tests. Although I don't believe air tests will provide accurate depth of detection analysis, I do believe you can accurately compare VDI readings to other coils on the same detector. When I first turned on the MXT, I pulled the trigger and set the GB to Lock. I was surprised to find that I could advance the Gain to the preset marking, without causing any chatter. Especially on the MXT. I passed a variety of coins and trash targets under the coil and found the VDI readings to mirror the readings I had recorded with the stock 950 Eclipse. Satisfied that the Super 12 would provide VDI similar to the other coils I own, I headed to the test garden to see how it would perform in the dirt.
I built my test garden about 15 years ago. It is "planted" with a variety of coins, jewelry and trash targets, each at varying depths and angles. Some coins are adjacent to one or more trash targets, to allow me to determine separation characteristics of different detectors and coil combinations. Operating in the Coin/Jewelry mode, the Super 12 made it's way through the first two rows of targets, identifying each without an error. At each target I would make adjustments to the Gain and Discrimination to verify the Super 12 was performing the task at hand. The last target in the second row is one of the more difficult targets in the garden. It is a series of three targets, a dime, a nail and a pull tab. Each target is separated from the other two by three inches, at a depth of 4-inches. Many detectors and coil combinations find the targets. But few can separate and identify them accurately. Sweeping the Super 12 one inch above the ground, I heard all three audio signals. Turning up the Discrimination to reject the nail, I was still able to hear two distinct audio signals when passing over the pull tab and the dime. Pressing the finger trigger forward to Pull Tab reject, I now heard a broken audio signal as well as a solid signal over the dime. Returning the trigger to neutral and by raising the coil a few inches, I was better able to separate the accepted targets. The target ID was consistent enough that, if it had been an actual hunt, I would have been digging a hole.
The rest of the targets are located in another portion of my yard. To get to them, I have to walk around a bush that separates my yard from my neighbor's. When I cleaned this area to build my coin garden years ago, the area directly around this bush yielded two gold rings, a silver ring and several Wheat cents. Although I have hunted this spot dozens and dozens of times, I can't help but sweep the coil under than bush, everytime I walk past it. Today was no exception. But as I swept the Super 12 under the bush, I got a solid signal on the MXT. I repeated the sweep from various directons and noted that the sound was consistent, as was the location it was coming from. Glancing at the VDI, I saw a solid 20 and probably a nickel or a ring. Wondering what the odds were of finding another ring under this bush, I reached for my digging tool. Whoops! It wasn't there. Since I was sweeping around my test garden, I hadn't bothered to bring the Lesche. I stuck a stick in the area of the target and went to the house for the digger and electronic probe.
When I returned, I rescanned the area and confirmed the target to be at a depth of 6 inches. Before I dug, I advanced the Gain to +4 and raised the coil as I swept over the target. I was able to clearly hear the audio response, as well as a consistent VDI reading with the coil sweeping 7 inches above the ground. Anxious to see what I had missed so many times before, I cut the sod from around the target location. I carefully removed 4 inches of dirt and scanned the hole with the Super 12. A clear audio response told me that the target was still there, and the pinpoint mode indicated it was right in the center of the hole. Using my Lesche digger, I loosened the soil at the bottom of the hole, making sure to keep the blade at or near the perimeter. Taking my electronic probe, I confirmed the target was under another couple inches of now loose dirt. Reaching into the hole, I located the target and removed a 1904 V Nickel. The MXT and Super 12 had located the coin, and had also provided accurate target identification and depth.
What started out to be a series of tests in my test garden turned out to be a real treasure hunt, right in my own back yard. I'm very impressed. The Whites Super 12 concentric coil is a lightweight, well balanced coil that provides accurate target identification information, great separation characteristics and excellent depth of detection. It allowed me to increase the depth of my MXT by allowing me to increase the Gain settings and not create chatter. I would encourage anyone hunting in areas with light to moderate mineralization to try the new Super 12 Concentric coil on their DFX, MXT or M6.Randy
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