How many of you can...

[Jeff in Pa]

Tell the difference between a copper memorial and a Wheat? I do NOT mean by sound I mean by the 2 digit display on the Etrac..

Jeff

 

[Goes4ever]

I can tell by the numbers 98% of the time

 

[jimmy]

Down here in Raleigh N.C. we have some tough mineralized red clay to work around, my etrac reads wheats @ 12-41-43 95% of the time and pre-1982 copper cents @ 12-44-12-45 95% of the time, on occasion I get a wheat or pre-1982 copper @ 12-43 maybe 5% of the time

 

[MD_Hunter]

Sometimes, but definitely not always. I would say that typically wheats come in at 12-40 to 43 and copper memorials 12-43 to 45, although lately I have been seeing copper memorials come in as high as 46 and sometimes even 47 and have dug wheats as high as 45.

I was curious about this same thing the other day and did some air testing. The memorial was 12-44 when flat and 12-45 on edge, 100% of the time. The wheat was coming in at 12-43 flat and 12-44 on edge.

 

[Goes4ever]

here in NW Ohio:
zinc memorials are almost always 12-37 and indians are RARELY EVER on 12 line 99% come in at 09-36 so even when I get a 2" deep 09-36 I dig it, sometimes it is a shallow indian

copper memorials are 99% 12-45..........clad dimes are 99% 12-44

wheats 1958-1930 area 90% of time 12-41,42.........but ALSO 90% of barber dimes and seated dimes are 12-41 as well, PLUS 2 centers!

OLDER wheats 1920's and teens almost ALWAYS lower 12-38,39 area

I base this on digging thousands of wheats over last 4 yrs with the etrac, over 500 indians, 2 million memorials, and zincs, and a lot of barbers dimes and a handful of seated dimes

 

[sprchng]

There's numbers?

 

[fishnnut]

 

[Southwind]

OLDER wheats 1920's and teens almost ALWAYS lower 12-38,39 area

I've always wondered what causes this. You can just about always guess when you have a wheat in the teens or 20's by that lower number.

 

[DiggerODirt]

Copper content changed over the years...

 

[sprchng]

Saying any coin will always read exactly the same is foolish.
Sweep speed and position can make a difference even in air tests , as well as EMI. What about the ground it's in?
I often run in ground that gives me a sensitivity in Auto+3 of 10-----do you really think a wheat in your dirt will run the same?

 

[NebTrac]

OLDER wheats 1920's and teens almost ALWAYS lower 12-38,39 area

I've always wondered what causes this. You can just about always guess when you have a wheat in the teens or 20's by that lower number.

I've wondered that also, and theorized that they were blending the excess IH material with the wheat metal. Just a thought.

As far as memorials, here in Nebraska I get suspicous when the sound varies on the cross "X" swing. Usually by one number (44 and 45) for example. Most of my wheats hit 42.

NebTrac

 

[Ohio Digger]

For the past week I've been digging wheats that are all giving 35-39 conductive out of one area. A couple I swore were going to be Indians. Does soil moisture effect it? The grounds been real saturated here in eastern OH. But yet I snapped my digger today lol.

 

[Jeff in Pa]

One thing I have noticed is that my numbers will vary depending on the coil here in my ground. I personally think that I will mainly get the lower conductive number when a merc is very thin or a wheat is older and green. The nice looking clean wheats are higher and lock in better with my ultimate.

 

[E-Trac-Ohio]

Yes you can - I agree with the numbers posted above.
If the target is a coin - I can almost always tell if it's going to be an Indian, Wheat, Copper or a Zinc Cent before I dig it.
The only variable is a very corroded Zinc Cent - sometimes they come in all over.

 

[ChicagoJohn]

I ignore all 12-37 and 12-38 in shallow in park. Its mostly zinc penny. I dig all 12-42 to 12-44 even 13-44 14-44 and 15-44. I found wheat on 12-44 ,many times but I also found dime on 12-44, too. Old penny and dime is different but why same 12-44?

 

[Goes4ever]

Saying any coin will always read exactly the same is foolish.
Sweep speed and position can make a difference even in air tests , as well as EMI. What about the ground it's in?
I often run in ground that gives me a sensitivity in Auto+3 of 10-----do you really think a wheat in your dirt will run the same?

foolish is not properly reading my post then saying it is foolish. Re read. My post I said ALMOST ALWAYS. I did not say always for everyone. I am stating my experience with my etrac in my soil......

 

[Jeff in Pa]

I agree G4Ever, Almost always for me too. Two nights ago I had a deep Memorial that was hitting lower on the conductive but if I hit it from just the right angle I could get a 43 and for me, here in my soil a 43 is a copper Memorial. Guess what, it was a copper memorial. Also here the Wheats have a much higher ferrous number.

The E is excellent to learn if you would like to "Call it before you dig it"

 

[Digger]

I hunt by ear and confirm by TID. And up until I read about the metallic content of US cents, I would have sworn that I could tell the difference. Especially by sound. But based on what I've learned about the metallic content of US copper cents, I'm not so sure now.....or how?
What puzzles me is why my ETRAC or CTX (particularly the CTX), which analyzes both Ferrous and Conductive properties, have less TID accuracy on copper cents than single frequency detectors, like my 705 or even my XLPro.


http://en.wikipedia.org/wiki/Penny_(United_States_coin)

1856 - 1864 88% copper, 12% nickel
1864 - 1942 "bronze" (95% copper, 5% tin and zinc)
1943 zinc-coated steel (also known as 1943 steel cent)
1944 - 1946 "brass" (95% copper, 5% zinc) (derived from expended shell casings)
1946 - 1962 "bronze" (95% copper, 5% tin and zinc)
1962 - 1981 "brass" (95% copper, 5% zinc)
1982 varies: "brass" (95% copper, 5% zinc) or copper-plated zinc (97.5% zinc, 2.5% copper)
1983 - present 97.5% zinc, 2.5% copper (core:99.2% zinc, 0.8% copper; plating: pure copper)

 

[sprchng]

Saying any coin will always read exactly the same is foolish.
Sweep speed and position can make a difference even in air tests , as well as EMI. What about the ground it's in?
I often run in ground that gives me a sensitivity in Auto+3 of 10-----do you really think a wheat in your dirt will run the same?

foolish is not properly reading my post then saying it is foolish. Re read. My post I said ALMOST ALWAYS. I did not say always for everyone. I am stating my experience with my etrac in my soil......

I was simply making a statement.
If I was commenting on your particular post I would have quoted it.

 

[Elton]

n/t