Originally posted by GOLDENSKULL
View Post
To build spiral antenna nothing is critical. But ideally for gold treasure you can follow this data:
- outer coil diameter 173mm
- number of turns 17,3 (because of centered beginning mean practically 17 full turns)
- material copper tube with hole not smaller than 1,73mm (copper wire diameter 1.73 mm on a supporting plate (see picture at post # 9) will also be good.)
Coil inductivity for gold have to be bigger than 173nH.
Originally posted by Fred
View Post







Comment