Hello,
i use a CZ70 and an CZ7a. Great deep seeking machines. But they have a problem with the strong iron-disk. I ask Fisher but they don`t want help me. They say the knowledge is protected. So i make any tests to reduce the iron disk in the electronic circuit. I find now the right way to reduce the iron disk. Little and medium nails give the low tone. Bigger iron parts give the higher tones. I test it in the field with great results. It is now a real relic detector. With a switch i can change between the new and the old attitude. Only the tones shift, but that is no problem.
In the old attitude little or older coins give a low tone when they are deep. Now it
i use a CZ70 and an CZ7a. Great deep seeking machines. But they have a problem with the strong iron-disk. I ask Fisher but they don`t want help me. They say the knowledge is protected. So i make any tests to reduce the iron disk in the electronic circuit. I find now the right way to reduce the iron disk. Little and medium nails give the low tone. Bigger iron parts give the higher tones. I test it in the field with great results. It is now a real relic detector. With a switch i can change between the new and the old attitude. Only the tones shift, but that is no problem.
In the old attitude little or older coins give a low tone when they are deep. Now it
