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Weight of 10.5" 7.5kHz coil vs. stock coil?

C

Canewrap

New member
Does anyone have both coils and can tell me the approximate increase in weight with the larger coil? Also, does it give an appreciable increase in depth over the stock coil?
 
The standard coil weighs 450 grams. The 10.5 round DD coil weighs 594 grams. The difference is 144 grams. There are 31.4 grams to the ounce if you need to convert it. About 25% heavier.
Mick Evans.
 
Thanks, that's very precise. So, the stock coil is real close to a pound and the 10.5" is therefore about 4 oz more. Not bad, don't know why people are calling it heavy. I would suggest that anybody that finds it heavy may need to shorten their detector rod.
 
I've shortened my lower rod and does help some, but I get a little carried away sometimes and swing a 8 -10 hr day non-stop. :nono:Whew!! It really beat me up the last time I did that.. Still having problems physically (shoulder and neck) as a result and it's been about 3 months. :stretcher: Also if you notice the mounting ears on the 10.5 are not centered on the coil which makes it front heavy. Digger mentioned mounting the coil backward, which does help also. So my options are to not use it for such a long period of time or just use one of the many other coil choices available. I have tried them all and would have to say my favorite, not just because of weight, is the small high freq. I primarily detect old home sites and they are usually littered with gobs of trash to be separated. The 6" works great for this and my shoulder.
HH
Bill
 
Yeah, I'm chiefly a CW relic hunter and some of the sites I've hunted are as bad as what you describe. I'm thinking I'd be better off getting a 6" coil first.
 
First I scope out the site by doing a little trash density study if I'm not already familiar with the area. Then I first use the heaviest detector/coil combo that I plan on using that day. Then as I tire, I switch to lighter combinations and this allows me to extend my hunting time without too much fatigue. Saving the trashier areas for last and using the 6"DD works great! It's light as a feather and usually in heavy trash a short swing is in order taking pressure off of the joints.

HH
BarnacleBill
 
The 10.5" does add some weight however, I can swing it all day long within reason. It finds some small targets as well, I dig rivet heads at 3-4" that sound good. The DD coil gets some great depth, 10-12" in good conditions running in AM. Does a great job at trash separation for its size, it will pull the better signal when mixed targets are present or you will hear both or more. I have pulled my target and found a nail in the same hole I didn't hear when digging the target at first. HH, Mike
 
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