Advice needed: Best DIY PI metal detector project for max depth on large targets

[Havel]

Hi everyone

I’m looking to build a DIY pulse induction (PI) metal detector specifically designed for maximum depth on large, highly conductive targets i searched the forums complete project section and i couldn't find one that suits my expectation due to my lack of knowledge of metal detectors.
i want to make it so that it may reach 4m depth for objects around the size of 1 liter the soil is dry and low mineralization, i am looking for something with
-High transmit power (high-voltage or high-current pulses)
-Support for large mono coils (1+ meter)
-Proven success by other builders for deep detection

I’m comfortable building circuits with high-voltage MOSFET drivers
i am looking forward for any advice from the everybody willing to help and thank you all for your time

[GeoMax]

Is the detector intended for meteorite searches?

[Havel]

No, it’s not specifically for meteorites — I’m actually hoping to find old artifacts like cannonballs about 2kg or other historical metal objects.

[Altra]

The Delta Pulse seems to be a popular project for a large coil PI detector. There are many on the forum who have made it and lots of info. I am sure you could modify it to run higher currents and voltage. It has one drawback it uses an obsolete pre-amp LF357 which is hard to find. Maybe some of the guys have found a substitute?

[Havel]

I looked it up and the schemtiques where hard to find so i dumped it and then i switched to the mpp rev-e where i found out later that it is not the best when it comes to deep detection so now i am looking for a pi that is well documented like the mpp

[GeoMax]

Hi,

the user kt315 recently sold DeltaPulse bare boards. Check with him. Maybe he has one left.

[Havel]

I live in africa so buying thinks online is hard i was looking for something that i can print my self . actually now i am looking for the hammerhead 1 is there a garber file or should i try to make the pcb based on the design in the pdf file ? And if anyone has any experience with the hh1 please let me know

[kt315]

good book to read before to choice. not be blind squirrel.

[Havel]

Thank you so much kt315 for the advice i will look into it

[profesor]

Superscan is exactly the project you want.

[Havel]

I can't find any details about Superscan—are there any schematics I can follow, or websites where I can learn more

[Infamy]

Hi, 4m depth! the only people I know that go to that depth are military. Maybe its not a detector you are looking for.
Surf Detector on Youtube has some good PI examples which he has build videos for.
1m is deep, 4m needs specialist methods and equipement.

[pustareka]

Hi everyone

I’m looking to build a DIY pulse induction (PI) metal detector specifically designed for maximum depth on large, highly conductive targets i searched the forums complete project section and i couldn't find one that suits my expectation due to my lack of knowledge of metal detectors.
i want to make it so that it may reach 4m depth for objects around the size of 1 liter the soil is dry and low mineralization, i am looking for something with
-High transmit power (high-voltage or high-current pulses)
-Support for large mono coils (1+ meter)
-Proven success by other builders for deep detection

I’m comfortable building circuits with high-voltage MOSFET drivers
i am looking forward for any advice from the everybody willing to help and thank you all for your time

https://www.geotech1.com/forums/foru...PERSCAN-MK-II=

Source made PCB of SuperScan (not MK2) by irish man E.Foster.

[Havel]

I found these in anouther forum and i think it is the same as the one in the pictures you uploaded
IS there a more clear schematics or should i try get it from here

[kt315]

I found these in anouther forum and i think it is the same as the one in the pictures you uploaded
IS there a more clear schematics or should i try get it from here

oh Kuča Mala. vali vsio v odnu kuchu.
you took files from folder 'Eric Foster and his detectors_Goldscan'. ok, it is Eric's Aquapulse 1B. what your far action?