GB_Amateur

I get excited with a 120 year old coin and you find one 10 times as old. Heck, your consolation prize is over 400 years old.... Great work!

Nice photos. Got the following map off NYTimes: Does storm surge predict recovery of long buried valuables for detectorists?

You're off-scale by about 2 or 3 orders orders of magnitude, phrunt, depending upon what worries you. For example according to Wikipedia, Waco, Texas is the 22nd largest city in that state, by population. The meteoroid that wiped out the dinosaurs and 75% of plant and animals species on the earth at that time (66 million years ago) is estimated at (only?) 10 km in diameter -- about the size of Waco. From Wikipedia: With the exception of some ectothermic species such as sea turtles and crocodilians, no tetrapods weighing more than 25 kilograms (55 pounds) survived. (Damn crocs -- what does it take??)

To put this (natural, asteroid) satellite's size in perspective, here are some estimated diameters of meteoroids (pre-breakup) from known events: Chelyabinsk, Russia (2013): 20 m. Barringer Crater, Arizona, USA (50,000 years ago): 50 m. Tunguska, Russia (1908): 65 m. [ Dimorphos: 170 m. ] Chicxulub, Mexico (66 million years ago): 10,000 m. I think these estimated sizes assume all are asteroids. Although some have been hypothesized as comets (which would have considerably lower densities and thus larger diameters for fixed mass), I don't think those hypotheses have stood up, or at least aren't currently matching the best evidence.

I'm starting to think the Minelab crew is on an extended vacation. But I looked up Chazy, NY and it's a stone's throw from Montreal. They probably heard how beautiful the Fall leaves are in that area but didn't realize that season there is over at the end of September! (Don't forget to bring the snow gear, ML. OK, I'm exaggerating a bit. 😉)

That appeared to be tongue-in-cheek sarcasm. Whenever Klunker posts, get your spoof antennas airborne.

Do the ML Equinox gold modes work on the (dry) ocean beaches? That may have been his motivation -- to be sensitive to the small chain links.

Have you contacted the Gold Prospectors Association of America (GPAA)? Here is a link to their Michigan chapter webpage.

So there are multiple Manticore units out and available for making videos?

No. Bluetooth and proprietary wireless are two different, unrelated channels.

In your last photo (shows up better in that one), above the variable capacitor(?) on the left edge there is an integrated circuit(?). To the right of it is an empty socket. There is another one on this circuit board as well which I don't see in the photos. The Sierra Pulse Pro (SPP), also called the Sierra Super Pulse (SSP), also called the GMT Super pulse, doesn't have either the conductivity switch nor the pulse delay adjustment pot that's on the SL model. That is why those two sockets are empty. AFAIK (others here are more knowledgeable), the circuit board itself is the same. BTW, you will notice in your first photo that the detector nameplate is a paper stick-on label. If you peel that off, the chassis box has the GMT Super Pulse name decal, an address and company in the United Arab Emerites (UAE), etc. This detector was intended exclusively for the African market but failed to catch on there. Jimmy Sierra bought out Whites's inventory, overlayed the new name, and sold them excusively in the Western USA.

You and that Tesoro really speak the same language. Nice ring! By 'big coil' are you referring to the 10"x12"?

Here is where I looked before I posted. On rereading that, it does appear that "physical delivery" and "ensure that there is a convergence in pricing between the physical market and the futures market at expiry" is fancy wording with the devil in the details. Thanks for going into the weeds with your explanation. Another example of "a little knowledge is a dangerous thing?" 🤔

Here in Southern Indiana it hasn't been nearly as hot as many of you have been dealing with, but this is the driest summer I've expereinced since getting back into detecting in late 2015. I've hardly been out in the last 2 1/2 months. The few times I've gotten out I've taken jugs of water to wet the plugs after recovery, but I don't know how well that works when the ground is already so dry and no rain comes along within a few days to help out. The weather finally broke today and the predictions are ~70F (~21 C) highs and ~50 F (10 C) lows for the next 10 days -- perfect Autumn temps + low humidity. But no rain in the forecast... 😞

There are some air test data in the following report on the Gold Bug 2 with three different coils. I plotted those data (except the 1 ozt row) and did some curve fitting: You can see in the 12-14 grain range that the three coils give about the same 'depth' (in air, not ground) and that for lighter nuggets, smallest coil is best and above that range, the largest coil is best. (Note: about 15 grains equals 1 gram).