Metal detector with meter discriminating

[Sasho Varna BG]

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

[Sasho-bg]

Mistakes:
Meter is -0.05ma zero +0.05ma.Change + and- in schematic.
Sorri.

[Ultimate_Haze]

Hi

Hi,
Saaho.
It seems that you have made many projects!
And this look interesting,but please give PCB layouts!I have tryed to make some PCB layouts,but I cant understand too many things!
This is new hobby for me.Please HELP!
Its inposible that you have made this and you dont have PCB layouts.
And what diodes you use as D5 and D6?
Thanks

[Ultimate_Haze]

hi

Sorry ,
Sasho!!!!!

[porkluvr]

coil data

Sasho, that's a very interesting design. Could you provide a little more information on the transmit coil? Are all three windings wound right on top of each other? How are they phased, where do phase dots go?

[sasho-bg]

To Porkluvr:
This is only one coil with three outputs.

[sasho-bg]

TO Porkluvr:
This is only one coil with four outputs.Res. coil is with two outputs.

[sasho-bg]

This schematic is without mistakes:

[Sasho-bg]

Very good depth. NEXUS is similar to this schematic.

[Unregistered]

To Sasho-bg

Hare be sa6ka dai vida na pe4atnata platka pone edin pat!
PLS

[Sasho-bg]

To Unregistred
Българите винаги се мислим за големи дяволи .Не искаш ли да ти ги правя, а ти само да лапаш парички. За всяко нещо човек трябва поне малко да се потруди.Баламите отдавна умряха.Май много сгреших, че пуснах тези схеми .Повече нищо няма да покажа,дори то да е от преди 30 години.

[chemelec]

What does this detector Descriminate for?

Different Metals, Or Just Magnetic/Non-Magnetic Metals.

Also, Can you give an Example of its Sensitivity?

[Sasho-bg]

To Chemelec
Discriminate iron and AL. foil.Sems. is d=25 mm in 28 cm.

[MASTERA]

SASHO TARIKATA

VIG KVO PICH,AKO TEZI SHEMI STAVAHA ZA NIAKAKV CHEP SHTESHE DA PRAVISH PARI KATO NAS.KATO NE MOGESH KVO SE PANESH,DRAG SI GI I ZLOBEI.

[Unregistered]

to Sasho-bg

I dont wanna make money from your circuits,just wanna run ONE for my self!
I upishied your work according to LETO and IVCONIC your mini work well!
And not we Bulgarians but only half of us wanna make money from other works!
I am here to learn not to copy and collect others fruits in their garden!