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Might be from a hat or bag? Looks like it had a cloth covering in the middle at one time.

Even my SeaHunter that can go to 200ft has a window to show any condensation. Steve is right about changing batteries. Battery compartments could easily be isolated and be better waterproofed imo. Wonder if you could use a wireless charging? https://batteryuniversity.com/index.php/learn/article/charging_without_wires

My brother knows I'm trying to build my own machine and sent me this diagram. Thought it was pretty funny 🙂

I think on the pinpointers the Rx is on the tip and Tx above that so adding metal to it like taping a coin to the side (preferably an uncirculated morgan dollar) might add to the Tx signal. That's my guess :)

Is the PI more sensitive to small gold? Anyone have a Carrot and F-point they can compare?

If I didn't have my ATP for slugging through the sludgy ponds I would look at the Multi Kruzer. Not that it's better or worse than the Nox but rather I like the eliptical coil better in my area vs round, the s handle looks more comfortable than the Amphibio and Nox as I am used to those. Vibration is handy as if I miss the target the water gets really murky and lastly they have a 9" round concentric coil available which would be killer in parks with a lot of beer bottle caps. If your looking to hit the beach then the Nox is your best choice as far as VLF's Just my thoughts.

I tried Jameco as they have switchcraft but not that one of course. Thanks

I would would be more inclined to believe those are knock offs. If they came out of a reputable dealer with some sort of certification I'm sure they wouldn't be that cheap.The last places I would buy a coin is Ebay and Amazon hehe.

Is the Delta 4 pin connector proprietary or is it something someone sells somewheres? Looking into building a coil for my Tejon and if that goes well will use it on a Lobo mod. Thanks

It seems all the brands have their issues. I am happy with my Profind35 but considering I have recently got into beach combing/bobby pin removal services and needed to buy a pp now I would get an F-Point but if was sorting through piles of dirt the Pulse Dive might be a better option. Not sure with is more sensitive to tiny bits.

I have the Profind 35, initial ones were sent back for replacement this current one works well and has a bit of iron discrim. It is pretty sensitive to small foil and jewelry, no nuggets in my neck of the woods to test it on :( Was thinking of the Fisher F-point which is pulse which would good for my beach hunting but not sure how good those are.

Good point, I have recovered dimes and pennies that were paper thin from the salt yet their diameter was fairly close to original. I think you could be right, here are some what looks like collectable knock offs on amazon that are very similar to yours: https://www.amazon.com/YEARS-Ancient-GLADIATOR-CHRISTIANITY-Velvet/dp/B07RR3V787?SubscriptionId=AKIAILSHYYTFIVPWUY6Q&tag=duckduckgo-ffab-20&linkCode=xm2&camp=2025&creative=165953&creativeASIN=B07RR3V787

Check some of the early Irish coins. That could be what is left of a Hibernia. Diameter might be blown away from the erosion but what should help is there are not of early coins with a head facing right. One's I know of are Hibernia and early King Georges. Hibernia date in early 1720's, think the KG's are 1780's.

The 8x11 widescan is an ok coil, I have the 10x12 and it goes slightly deeper ie nickel at 16" air test. I have found the DD on the Tejon can go blind on iron when the coil is in over iron and target in parallel BUT you can lay a dime right next to a pile of old rusty nails with the 8x9 concentric and tone out the iron and hear the dime perfectly clear as if there is nothing around it. Keep that DD for dry sand beach and low iron trash areas, if your not sure on trash level then run the disk so it just breaks at iron but not a clean signal and if you come across a target hit it at a few angles. Lastly round steel bottle caps can be disc out just at the foil mark so you don't lose the small gold on the 8x9 concentric. DD will struggle.

I saw the Kruzer has a 9" concentric, think that would be a killer combo on that machine. I prefer pots over buttons, so much finer to tweak than clicking though some numbers.

The 5" coil isn't concentric?

The plates are brass, the reeds are steel and rusted away. Shape looks like it was punched out and the F is stamped. I wish the top and bottom were still around but it is possible they weren't in the area where I found it, possibly a throw away as I found a bucket fairly deep full of broken glass nearby. It was located near foundation that looked to be a chicken coop where I found an old trap (possibly for fox or weasels). Great dig on info, Thanks

I wouldn't cast that T2 aside if you have a concentric coil on it. Bet it will still find more stuff than any new machine with a DD on it.

Considering the r&d has been done 100x over on machines the only real costs is the molding for the plastic housings etc. Nokta seems pretty conservative on part shapes, ie same housing on Amphibios & Kruzers. I think the pressure will be more on First Texas and Garret than Minelab in the low cost machine realm to start coming up with something that can go head to head in that market. Minelab seems to be comfortable with their high tech mid to high end price range. I have seen many users start with a lower end machine and end up with a Minelab unit. Nokta seems to be playing it smart and going for a wider range of consumers. I always wondered if the majority of sales of these machines are to existing detectorists rather than flat out new users? Starting to think dirt fishing is more similar to regular fishing in the way people collect fishing rods, detectorists seem to collect detectors.

Wasn't a number, just the letter F, guessing its a note to make it easier to assemble. No other marks on it.

I had looked into getting the TDI Beach Hunter but for the amount I hit the beach I couldn't justify the costs and instead sprung for a SeaHunter MK2. That little stock 8" coil hit the penny at a foot with no problems in wet sand, think it really fades at 14" but still a huge upgrade in depth when compared to a IB machine. I can well imagine how nice that GPX is in the salt, I would be scared to use one out there. I do love the hip mount for the SH, makes for easy all day swinging especially considering the control box seems to be weighted for neutral buoyancy. Your definitely correct on the wash out with new sands over the old. I noticed the dunes are really chewed up. Soon the weather will be too cold for most and I'll toss my neoprene waders on and hit the surf when it's a balmy 35-40. Like to get more hours on that pi. Pin pointing with the PI has been a bit tricky, seems to ring off the edge of the coil rather than the middle like a IB machine. I am a PI noob I'll admit it 🙂

Right now I just toss it in my pouch or dangle it off my fingers and hold my pp same time. Handle is 3/4" tube so it isn't bulky. Friend puts his at the end of his Nox. So far he hasn't lost it... so far...

I didn't notice any numbers will have to check it out closer. Been doing some reverse electrolysis on old hunting trap I found see what I can recover from it. Might bake a nice paper holder 🙂

You inspired me to hit one the beaches here so I blew off work on Monday for a bit. Can't believe how much has been washed away from the storms. Dunes down from 1-2 feet here. Found a recent zinc penny a foot down in new shape. Usually those bubble up in no time in the salt. I heard that an old shipwreck washed up on a nearby state park and they closed it. Heard there was gold coins with it but that could be some local pirate rumors going around. You ever consider getting a TDI Beach Hunter for the salt rather than beating up that GPX? If you need to replace pots and switches check out the waterproof ones, should be some that will fit. I stopped using my Tesoro at the beach because I don't want to trash it.

I got a test kit, was pretty cheap $24 usd included platinum and silver along with 2 stones and a jewelers loupe that will make your eyes cross if used too long.... again was only $24 usd :) Some the old old rings around here go back 1700's and even 1600's and look to be bronze. Probably commoners rings I guess but many don't seem to have marks on them and badly worn. Think I had posted a pic of a couple earlier this year. 925 silver and higher shouldn't tarnish, dug an old cross that looked like new that tested at 999 silver. Thought it was tin because it was fairly soft but was wrong on that. That ring looks like rose gold, recently found a charm with diamond chips in it that had pretty close to the same color and it tested at 18k. If that was plated you would see bubbles and any scratches would reveal the base metal. Plated stuff is pretty easy to spot.