Metal detector with meter discriminating

[ofas]

Thanks to everyone, I will try to make a device according to this scheme. The page translator did not work 100%, so don't worry

[Qiaozhi]

Aciu visiems,bandysiu pasidaryt prietaisa pagal sia konstrukcija

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and make your posts in English.

[ofas]

Aciu visiems,bandysiu pasidaryt prietaisa pagal sia konstrukcija

[scs]

Meter pointer at center position is stable.

[WM6]

Hi Sasho

How stable is meter pointer at set center position? Do we need frequently to re-tune meter using P8?


Can you give us some more explanation regarding this your remarks on schematic:

[scs]

Improved oscillator.

[6666]

Working schematic[ATTACH]35924[/ATTACH]

Thank you Sasho.

[scs]

Coils is fixed to a minimum output signal op 1 .Regulator amplitude of the compensation coil must be at minimum.The detector detects very deeply coins.

[WM6]

Thanks Sasho

What tunning procedure you suggest?

[scs]

Working schematic

[galaksi]

images from saho-bg 20070523 without mistakes

[6666]

This is my schematic from 1992 year. Works better from many modern detectors:

Does anybody still have the schematic from first post ?

[zixelll]

I love the pictures and I will not open it again lets doc circuit thanks

[mosha]

gerber file or OCAD

please send me the gerber file or OCAD for this detector if any body has to:

[email protected]

best regards,

[Micheal]

minelabs can detectect coins at good depth...why dont you post something good that works at good depth and is worth making....rather than wasting everybodies time...If a pulse induction cant find a 2cm coin at 40cm then throw it in the rubbish and dont post it here,its not worth making and we all know that....sorry guys to be rude but I have read maybe hundreds of pages on the forum and enough is enough too many poeple are posting rubbish.If you guys have something good with all the details like PCB proper parts list with the parts placement diagram then post it otherwise keep it to yourself ,this site is for sharing good things not rubbish