Felezjoo Pi- adjusting automatic delay, A,B and C values to perfection!!

[algan]

Sorry my friend I can not. Besides YouTube is full of Felezjoo detectors with good performance. And I can assure you mine is not better than them

Yes friend I understand that you cannot prove with videos your results with numbers A, B and C values to perfection that you have obtained and also the impressive depth of Felezjoo that you claim to have achieved

[Nightryder]

Yes friend I understand that you cannot prove with videos your results with numbers A, B and C values to perfection that you have obtained and also the impressive depth of Felezjoo that you claim to have achieved

AND THERE IT IS. I could see the negativity 10 miles away! I knew your intention since you provided only some of the measurements and you deliberately didn't mention all of them to make it impossible for me to find you a solution so you could say that I was wrong. Is this what you do with the good honest participants of this knowledgeable forum?

YOU COULD HAVE JUST ASKED FOR A PROOF OF MY NUMBERS DIRECTLY, AND I WOULD BE HAPPY TO THROUGH YOU ONE.


Actually this is exactly what I'm going to do. I'm really curious to see how you walk away from this

[Nightryder]

Yes friend I understand that you cannot prove with videos your results with numbers A, B and C values to perfection that you have obtained and also the impressive depth of Felezjoo that you claim to have achieved

Just a piece of advice for ya! The good honest members of this information rich forum share the same hobby. They all come here to share their knowledge and experiences and also to learn from each others. They (including you and me) also can make mistakes because we are all humans. Trying to discredit them is not the way to go my friend. You are a lot bigger than this!

As a good gesture, I say let's not get this topic off track and get back to a constructive discussion . Maybe you could share us some of your knowledge because I'm sure you have some under your sleeve!

[algan]

Just a piece of advice for ya! The good honest members of this information rich forum share the same hobby. They all come here to share their knowledge and experiences and also to learn from each others. They (including you and me) also can make mistakes because we are all humans. Trying to discredit them is not the way to go my friend. You are a lot bigger than this!

As a good gesture, I say let's not get this topic off track and get back to a constructive discussion . Maybe you could share us some of your knowledge because I'm sure you have some under your sleeve!

Glad you are helping forum members I'm still learning to.Thanks

[Nightryder]

You are most certainly welcome!! I learned a lot from you.

I hope one of the attached PCBs (which I found on the internet) can save you the troubles of making a new one. I renamed them 1,2 and 3 so it's easier for me to tell you the following:

I only made # 1 twice which I destroyed due to soldering and desoldering too many times throughout my journey in shooting the troubles. It has decent space for components and also it has voltage check points which is crucial for such a device.(see the attached file named parts list regarding voltages) Just keep in mind that it has a little mistake which is R5, such that on the pcb it says 10K but the correct value is 2k2.

#2&3 which I did not use in any of my felezjoo projects; therefore, I'm not sure whether they have any mistakes or not. But they are very interesting to me because they contain a trim-pot which is not in the schematic and I'm curious about it's purpose.

I included a pdf file named parts list, which has notes from the maker himself worth reading at the bottom. Which suggests to use an 18 volts battery rather than a 24 volts one. I personally use a 12 volts charger (at my own risk) at the moment because I just ordered Li-ion batteries and waiting for them to be delivered. Therefore, I had to replace the 12v regulator with a jumber also I had to replace R19 (22k),which is responsible for telling the microcontroller how much voltage is left, with 10k resistor as you know the device is programmed to shut down at 14 volts. Now with the 12v charger, the screen shows voltage is about 21 Volts .

Good luck in making your next felezjoo!

I just realized that the trimmer pot in PCBs (2&3) is to adjust the battery voltage on the LCD which is basically R19(22k) in the schematic.

[Orbit]

I don't understand, when will you realize that this device does not have a ground balance?! The balance exists only in the menu, but it is not active! Second, it's too slow! Thirdly, the stupidity that it has to either use 21v or trick the micro processor to work.. It's simply that the author deliberately gave a carrot that you chase in circles.

[Tanu]

I don't understand, when will you realize that this device does not have a ground balance?! The balance exists only in the menu, but it is not active! Second, it's too slow! Thirdly, the stupidity that it has to either use 21v or trick the micro processor to work.. It's simply that the author deliberately gave a carrot that you chase in circles.

You mean ground balancing is author trick in demo version.
original version it work or not?

[Orbit]

You mean ground balancing is author trick in demo version.
original version it work or not?

I'm sure it is!Most likely, that's how everyone works! The original version has a price, no one is going to give away for free something they have been working on for maybe months.

[Nightryder]

I don't understand, when will you realize that this device does not have a ground balance?! The balance exists only in the menu, but it is not active! Second, it's too slow! Thirdly, the stupidity that it has to either use 21v or trick the micro processor to work.. It's simply that the author deliberately gave a carrot that you chase in circles.

I agree. You don't understand.

[Tanu]

Felezjoo Pi my frist detector.my detector A=260 B=700 C=802
Not changing any component.Not finished yet
I think i want build proper coil
please tell me how to realize Ground balance work or Not
Some source i see it's Not Ground Balance its Ground adapting
I don't No what different this two technique

[Nightryder]

Felezjoo Pi my frist detector.my detector A=260 B=700 C=802
Not finished yet
I think i want build proper coil
please tell me how to realize Ground

as the author mentioned, Inductance 350uH Resistance 1 ohm . He proposed spiderweb coil

GEB works fine with me all the way up to 10 I had to reasonably adjust speed a little bit. I don't understand why some have issues with it

Good Luck!

[Tanu]

as the author mentioned, Inductance 350uH Resistance 1 ohm . He proposed spiderweb coil

GEB works fine with me all the way up to 10 I had to reasonably adjust speed a little bit. I don't understand why some have issues with it

Good Luck!

I edit reply some word are missing.
Thank you
My coil 400 uH 1 ohms spider 45 cm 1mm enamel copper wire
Can you tell your coil details ?

[Emersonpaz]

I made this video a while ago giving some tips on building felezjoo

No changes were made to the components, everything as per the original scheme.

https://youtu.be/wNTOqbBnwO0?si=CKJNO_AEHA9JtsRV

[Tanu]

I made this video a while ago giving some tips on building felezjoo
https://youtu.be/wNTOqbBnwO0?si=CKJNO_AEHA9JtsRV

I watched it Thank you valuable video
Do you experiment with the real field ?
Do you notice any gb problem/unstable problem ? As some one say

[Emersonpaz]

In my region I have a problem with all detectors, there is a lot of iron stone.
I used felezjoo with a 20cm spider coil. gain reduced by less than half performed like the other diy detectors I've assembled.
I have doubts if gb really works, maybe not.