Pulltabs

[The Beep Goes On]

That's good info Larry. I don't have much doubt that any test would result in the same results which you have achieved, but it's hard to leave this trail unhunted.

I've had a few thoughts concerning what might be done to see if there was a holy grail buried in all that data...

1) Only do the tests for targets in your area. The results would only apply to your area. All this means is that you use pulltabs from your area in the test. This could still be a large variey, but might be significantly less than what you would find nationally/internationally. You might find, for instance, that one type of pulltab has something distinctive about it...could cut down on your digging (this doesn't necessarily achieve our intended result, but is a good way to familiarizing yourself with local trash).

2) Broaden the test - instead of comparing gold rings to pulltabs you compare gold alloys to aluminum alloys. Comparing identical shapes with identical volumes might be intriguing. If you were a metallurgist and a machinist...well you get the picture.

3) Do enough testing to enable statistical analysis (100's or 1000's of targets). Might find a trend that could improve your odds.

One thing I know is true - if the holy grail of pulltab/gold separation exists, then White's doesn't know about it. They would be shouting it from the rooftops if they did.

Beep

 

[BHNugget]

Larry,did you get any of the tabs you tested to hit the hardest in the 7.5 freq? Ive had this happen also on the older tabs that arent aluminum.

 

[nw1886]

Beep, That statement of "shouting from the roof tops" sums up the debate on the issue! Was looking at the post that showed the high percentage probability and there is something there for sure (but still too many variables to not dig the tabs). I'm afraid I'm still going to have to just keep my retrieval times fast and dig it all...still. This last while, I'd have missed two major class rings if I'd been even just a little "tab tired". Wouldn't it be great if Whites could come up with some new software tech to really be able to drill down on the rings! I have no doubt that the technology is there but...no detector manufacturer has it yet. (Probably locked away in a "black room" with pocket protector types guarding it!!) There has to be signitures that show a marked difference between aluminum and gold!

Sure do like that Flying Eagle Neal !!! (32 is one of those VDI's that would have to be very solid to dig!) Have never found one and that one is SWEET!

 

[Larry (IL)]

No, I didn't try that many but I'm sure the bigger ones will. I will go through my junk bucket when I have the time and get a bigger assortment of tabs. I know some of the larger common tabs VDI at 47, just didn't Analyze them.........

 

[Neil in West Jersey]

Nice one Neil,what does the VDI read on it out of the ground?

The Flying Eagle Cents (1857-185, as well as the early Indian Heads (1859-1864) seem to lock in at 32 (in Best Data). This is due to their higher nickel content.