the best vlf metaldetector schematic

[Geo]

Hi Sean Goddard .
Do you mean the follow schematic for Nexus?

[Qiaozhi]

Hi Sean Goddard .
Do you mean the follow schematic for Nexus?

This is not the Nexus. It's some other Bulgarian detector.

[aft_72005]

Hi Sasho,
I upload again your circuit and my question now:
1 -How much degree phase differences between pin 1 of ne5532 ic
And pin 1, out put of lm393 when diskr. Pot variable from minimum
To maximum?
2 - How much degree phase differences between pin 1 of ne5532 ic and pin 7,
Out put of lm393 when ground pot variable from minimum
To maximum?
Best regards.

[Unregistered]

hi sasho
i wnat make a pcb for this detector.please help me about this.what is the performance of your detector? can detect a 2cm coin in 50 cm in air?35 cm in ground? is this stable?
thank you.

[sascho-bg]

Detect 2cm coin in 35 cm in ground.This is stable.
В този форум повече няма да влизам.Нямам намерение да гледам простотиите на откачени руски пияндета които обиждат българския народ.
Сашо

[aft_72005]

Hi Sasho,
I upload again your circuit and my question now:
1 -How much degree phase differences between pin 1 of ne5532 ic
And pin 1, out put of lm393 when diskr. Pot variable from minimum
To maximum?
2 - How much degree phase differences between pin 1 of ne5532 ic and pin 7,
Out put of lm393 when ground pot variable from minimum
To maximum?
Best regards.

Hi Sascho
I wating for my questions reply.
Best regards.

[Ultimate_Haze]

Здрасти

Detect 2cm coin in 35 cm in ground.This is stable.
В този форум повече няма да влизам.Нямам намерение да гледам простотиите на откачени руски пияндета които обиждат българския народ.
Сашо

Здрасти,
Сашо.Как я караш?Моля те светни ме каква е интригата с руснаците?
И не им се вр1зваи.Ти струваш много повече от тях.

[aft_72005]

Hi Sascho
After your goodbye form geotech , maybe you don’t like come back here .
I have some technical data about your best vlf detector .
Please contact me with this email address : [email protected]
Best regards.

[tiktak]

Hi

Hi,
Sasho.
Please dont be a child.You have been a positive person here.Posted so many unique schematics that cant be seen elsewhere.Except GEOTECH.And in one way or another this HELPS.Plus you have also a long year experiance.
Please stay with us.
Thanks

[ivconic]

"...В този форум повече няма да влизам.Нямам намерение да гледам простотиите на откачени руски пияндета които обиждат българския народ.
Сашо..."

Sasho ne sekiraj se. Pusti budale neka pisu sta hoce. To su samo budale.
Budi ovde i nastavi da ucestvujes na forumu.
Pozdrav!

Sasho dont loose nervs. Let stupid people to write what they want. Those are just stupid. Be here and keep on doing good job.
Regards!

[amtech2005]

the best vlf metaldetector schematic

"...В този форум повече няма да влизам.Нямам намерение да гледам простотиите на откачени руски пияндета които обиждат българския народ.
Сашо..."

Sasho ne sekiraj se. Pusti budale neka pisu sta hoce. To su samo budale.
Budi ovde i nastavi da ucestvujes na forumu.
Pozdrav!

Sasho dont loose nervs. Let stupid people to write what they want. Those are just stupid. Be here and keep on doing good job.
Regards!

I hope Sascho stays on the Forum . I was always excited to see his new postings , like the pulse-IB , and all his other great work!!! I Hope this does not happen again . And I would like to see the bad postings deleted . They are still visible on some recent threads . You know you start to have a friendship here with different people from around the world and respect the electronic work they do , "troubleshooting , electronic design" etc... and then they make some off Topic remark's , it's like a stab in the back from a friend . ...........Eugene

[Unregistered]

Hi sasho hi to all.
sasho i made your detector with double tone.i should say this is very interesting detector.
i made double d coils that ivconic send here(TGS) for this detector(100 turn 100 turn).
with this coil i get 7.6 khz with 26vp-p amplitude.when i made the coil without shielding
i hadnt any differences in phase(TX & RX)but when shield them huge difference.
please help me and say how mach phase difference should be there?
what is the operation of 100pf between TX and RX? also that 4.7nf that goes to 1458?
how i should adjust the trimmers?(all trimmers?)
with disc scale this detector can differ between targets with sound.that means if you dont want iron
only adjust the disc pot and detector shows irons and bad things with another sound.very nice.hurrrrrra.
at the first i couldnt detect any gold with this but with many adjustment finally i get it.
but but for iron and other thing the depth is quite well.big distance.for my coins and gold not.i think it
should come from that phase difference!!!!
sahso and everyone that interested in it please help me about tuning this detector.
if i adjust this properly and see its good performace i will send the pcb here to share our knowledges.
thanx.
best regards.

[Unregistered]

Give some compare 1e on wich distance in air you get?

Regards!

[Unregistered]

as i said before my result on coin isnt so good.maybe 20cm.but for a little iron big distance
about 50-60cm.do you made this detector?

[aft_72005]

Hi Sascho
I saw below picture in Turkish site.
Added mods. What is your opinion?
Best regards.