geotech schematic circuit

		Quote:			Posted by godsmack
	hi guys i search in geotech1 site . ( You are not allowed to view links. Please Register or Login www.geotech1.com ) and i saw several schematic circuit for metal detector. can the specialist guys in this forum help me for choose a top metal detector schematic for build . 1- Full m/lab SD2000 schematics  2- Whites Surf PI schematic 3- Pulse IB discriminator (by Sasho - Varna) 4- RELIC HAWK 5- Fisher 1266 PART 1 6- Serbian "Most Wanted and ................. i wrote in another topic which i want find a 25*25 metal in 2 or 2.5 m depth please help me

Hello . On this Forum :

1. Delta Pulse PI
2. DBP 2010 PI
3. Tesoro Bandido VLF [Mid Range Detector "Not Deep" but good discrimination] Oscilloscope recommended .
4. Tesoro Golden Sabre "Lite version" VLF [Good depth and Discrimination] Oscilloscope needed .

and optional projects for experimenting with:

5. Goldscan IV PI project still has some issues . Depth and stability .
6. Relic Hawk VLF has great potential [not yet completed]  TX circuit and Discrimination Issues .

Other members are Welcome to comment here !!

HH.........Eugene

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Godsmack, all mentioned here projects use search coil configurations, suitable for small targets only. If your target has dimension 25x25cm or more and is buried in depth more than 1 meter, you need induction balanced loop configuration TWIN LOOP (3 coplanar loops) or TWO BOX (2 almost orthogonal loops).

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