Since I can't go detecting with a broken arm, I thought I would share some coil weights with you. I used a postal scale that's accurate to within 0.2 of an ounce. All coils were weighed with their lower rods attached. As noted, some coils have covers installed.
4 to 6 ounces of added weight doesn't seem like a whole lot until you attach it to the end of a long rod and start swinging it.
Fisher Gold Bug 11 inch DD coil with cover - 19.2 oz.
Fisher Gold Bug 5 inch DD coil - 15.9 oz.
Teknetics 5 inch DD coil - 14.3 oz.
Teknetics 10 elliptical concentric coil - 16.02 oz.
Teknetics 5 x10 DD coil with cover - 18.9 oz.
Teknetics 8 inch concentric coil - 13.4 oz.
4 to 6 ounces of added weight doesn't seem like a whole lot until you attach it to the end of a long rod and start swinging it.
Fisher Gold Bug 11 inch DD coil with cover - 19.2 oz.
Fisher Gold Bug 5 inch DD coil - 15.9 oz.
Teknetics 5 inch DD coil - 14.3 oz.
Teknetics 10 elliptical concentric coil - 16.02 oz.
Teknetics 5 x10 DD coil with cover - 18.9 oz.
Teknetics 8 inch concentric coil - 13.4 oz.