a question

[garah]

hello
in the TGSL MD,can someone please explain to me how the device can ignore iron but not gold and silver and copper,how it operate,and in the schematic What do you reach with this many logarithmic amplifiers ? I see you have a lot amplifiers with a diode in negative-feedback-loop.

thanks

[kt315]

good book for the dummys http://www.geotech1.com/forums/conte...metal-detector
you can order the copy from authors on this site directly. it will give you all answers.

good luck

[garah]

damn this's too useful, thanks man