TerryEastTexas
Well-known member
Hello folks. A little help please. What can I expect to get from the 10.5" 7.5 khz coil in weight, coverage, balance and depth over the 9" concentric 7.5 khz coil. Thanks for any info in advance.
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10.5" DD 7.5 khz coil vs. the 9" concentric 7.5 khz coil
- Thread starter TerryEastTexas
- Start date
Jackpine Savage
Active member
Well the extra 1-1/2" dia. of the 10.5" DD makes up for the depth difference you would expect of a DD vs a concentric. In mild soil I would call it a wash depth wise (subjective opinion) with the DD design of the 10.5" giving better performance in hotter ground.
The 10.5" is heavier than the 9" that and with the rod mount at the rear of the coil throws the balance off a fair bit making it nose heavy. For coin hunting in most situations if you are using proper coil overlap I prefer the 9" concentric.
tom
The 10.5" is heavier than the 9" that and with the rod mount at the rear of the coil throws the balance off a fair bit making it nose heavy. For coin hunting in most situations if you are using proper coil overlap I prefer the 9" concentric.
tom
TerryEastTexas
Well-known member
Thank you sir. I appreciate the info.