Howard Snell
New member
What's the VDI number on a penny? And are they easy to distinguish?
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AT-Pro and pennies
- Thread starter Howard Snell
- Start date
quarterhorse
New member
n/t
That depends on if they are zinc or copper. Copper pennies give a solid high tone and VDI is 80 - 81. Almost identical to a dime. So if you think you are going to did a dime and turns out to be a penny, it is a pre 1982 copper penny.
Zinc pennies have a slightly lower conductivity and will ring up in the 75 to 78 range. Since getting my At Pro back with the upgrades, Zinc pennies are closer to 75 and will give a mid/high tone chirp which is distinctive.
Hope this helps.
Jerry
Zinc pennies have a slightly lower conductivity and will ring up in the 75 to 78 range. Since getting my At Pro back with the upgrades, Zinc pennies are closer to 75 and will give a mid/high tone chirp which is distinctive.
Hope this helps.
Jerry
Jason in TN
New member
Love that mid high tone chirp. That is a larger civil war bullet most of the time when I am relic hunting.
Jason
Jason
TRIPLE-SSS
Well-known member
n/t
coppers bounce from 77 to 91-94 even but bouncy.... Zincs 2 tone bounce on the edges of the coil.. center= sweet spot- 75 - 60...
you will get to a point where u wont dig em... also there are some good things that mimic this till you wobble sweet spot on coil over them... typically they will lock on to say 77 - 65- 63... again you will get the feel for this in time..
Best wierd iffy signal I dug was a platnum alloy ring..again the signal wasn't what I usually dig but so hard a hit and so smooth
you will get to a point where u wont dig em... also there are some good things that mimic this till you wobble sweet spot on coil over them... typically they will lock on to say 77 - 65- 63... again you will get the feel for this in time..
Best wierd iffy signal I dug was a platnum alloy ring..again the signal wasn't what I usually dig but so hard a hit and so smooth
I have been criticized for not digging zinc pennies; do you guys dig them?
I stopped do so because I have never yet found anything else but a rotting zinc
when I dug them. Dimes and copper pennies are 50%/50%.
Has anyone ever dug a zinc only to be surprised that it was something else? I have not.
Salida
I stopped do so because I have never yet found anything else but a rotting zinc
when I dug them. Dimes and copper pennies are 50%/50%.
Has anyone ever dug a zinc only to be surprised that it was something else? I have not.
Salida
quarterhorse
New member
TheGeorgiaCanuck
New member
Canadian pennies older than 1980ish seem to hit in the 83-85 range for me. Newer ones are weird, sometimes 75-80 or if they are rotting, all over the place.
Mick in Dubbo
New member
Yeah, They are always $1 and $2 coins over here in Australia.
Mick Evans.
Mick Evans.
Mick in Dubbo
New member
I have actually found 3 zinc pennies are are very pleasantly surprised when I do, so I'll keep trying to find them and enjoy each failure that turns out to be a $1 or $2 coin.
Mick Evans.
Mick Evans.
TerraDigger
New member
Salida, your call on not digging zincs. But do be aware that large gold rings, like class rings, show up in the zinc range. The biggest ring (enormous wedding band) showed up as a zincoln.