arizonaames
New member
I just got a quarter that showed 92 to 94 VDI. All of the quarters that I have gotten register a strong 86 VDI. What makes this quarter different? It is a 1967 quarter.
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Clad vs silver
- Thread starter arizonaames
- Start date
Larry (IL)
Well-known member
There could be lots of reasons for the high VDI, but one is, there was a silver dollar, VDI 93, in the hole with the quarter. Bet that makes you go back and check the hole again...................
Did you check the hole again? HH, Nancyarizonaames
New member
Yes, I did. Like I said. it is consistant that the VDI on a clad quarter is 86 and it says quarter. The VDI was 92 to 94 and it was a 1967 quarter although it said it was a half and it was down about 5 inches. Could it be because of the higher silver content in a 1967 quarter?
Larry (IL)
Well-known member
No silver in a "67", 1964 was the last year for silver quarters in general circulation.
arizonaames
New member
Yes, I see that in 67 only proofs were siver. My MXT has been acting up for the last couple of days...perhaps time for a tune up.
Larry (IL)
Well-known member
Maybe not, air test a quarter and see what it reads. The VDI is just a tool to help you and it can vary widely when a target is in the ground. Many things can affect the VDI of a target, mineralization, depth of the target, the angle of the target, nearby metals, EMI, multiple targets.........the list is long. Your audio is always your first choice when deciding if you should dig or not.
You just add the numbers in the date and then multiply by the number of single digits:
1+9+6+7 = 23
23 x 4 = 92
See, it's simple!
Sorry, just a "back to school" moment as they announced on the news a few minutes ago thatkids start filling the tot lots with coins .... I mean, kids head back to school today.
Monte
Oh, for a better answer, it was because you had more than one target in the hole (did you check it?), or because the coin was in such a position or depth or due to the ground minerals or due to the presence of a nearby target, things skewed the TID. It happens, which is why an avid, savvy detectorist goes by the audio response 100" of the time, and recognizes that visual Target ID is not 100% accurate. Coil selection an also play a roll in target detection an read-out.
1+9+6+7 = 23
23 x 4 = 92
See, it's simple!
Sorry, just a "back to school" moment as they announced on the news a few minutes ago that
Monte
Oh, for a better answer, it was because you had more than one target in the hole (did you check it?), or because the coin was in such a position or depth or due to the ground minerals or due to the presence of a nearby target, things skewed the TID. It happens, which is why an avid, savvy detectorist goes by the audio response 100" of the time, and recognizes that visual Target ID is not 100% accurate. Coil selection an also play a roll in target detection an read-out.