DD-Coils made by Eric Foster

[GeoMax]

Hello,

Eric Foster manufactured DD coils for his latest models: GoldScan 5, GoldQuest V2, and Deepstar 3. Does anyone know the coil parameters of these DD coils? Or does anyone have any other information about these coils? Thanks.

[GeoMax]

Does anybody has an original DD Coil made by Eric Foster?