My TOTeM project

[Goldmaxx]

Hi to all,

I currently have some time, I will here show the construction of my TOTeM project.
Since I am not a electronics expert and I hope that I maybe get some help here.
The theme PD has always fascinated me and I very much fun to construct.
It will be my first PD project and am very excited.

At this point, I would like once more to thank so much Qiaozhi and Carl for the wonderful book Inside the METAL DETECTOR, which made ​​me very thrilled.

So the PCB I have almost finished, there only missing the transistors.

And here was already my first question to Qiaozhi:

There are three different versions of the BC108 transistors A, B or C.
Which type do I need, or are they all the same?

Thank you very much

best regards

Here are picture of my PCB

[Qiaozhi]

Originally Posted by Goldmaxx

And here was already my first question to Qiaozhi:

There are three different versions of the BC108 transistors A, B or C.
Which type do I need, or are they all the same?

You can use either type in this application. In fact, any general purpose NPN transistor will be ok, as these are only being used in the audio stage.

[Goldmaxx]

Originally Posted by Qiaozhi

You can use either type in this application. In fact, any general purpose NPN transistor will be ok, as these are only being used in the audio stage.

Hi Qiaozhi,

many thanks for the information, now I can finally make the completed PCB
and continue with the case.

Regards

Goldmaxx

[nelson]

Hi Goldmaxx

I congratulate your work and this will be my next proyect too after my vacations, so i will be following your post.

About transistors has Qiaozhi is pinting out, you can use almost any substitute.

Good luck in your new project and have a happy new year.

Regards

Nelson

Originally Posted by Goldmaxx

Hi to all,

I currently have some time, I will here show the construction of my TOTeM project.
Since I am not a electronics expert and I hope that I maybe get some help here.
The theme PD has always fascinated me and I very much fun to construct.
It will be my first PD project and am very excited.

At this point, I would like once more to thank so much Qiaozhi and Carl for the wonderful book Inside the METAL DETECTOR, which made ​​me very thrilled.

So the PCB I have almost finished, there only missing the transistors.

And here was already my first question to Qiaozhi:

There are three different versions of the BC108 transistors A, B or C.
Which type do I need, or are they all the same?

Thank you very much

best regards

Here are picture of my PCB

[Goldmaxx]

Originally Posted by nelson

Hi Goldmaxx

I congratulate your work and this will be my next proyect too after my vacations, so i will be following your post.

About transistors has Qiaozhi is pinting out, you can use almost any substitute.

Good luck in your new project and have a happy new year.

Regards

Nelson

Hi nelson,

thank you very much and also for the tip. I will try to gradually my complete setup of Totem documented and am happy for all the help I can get.
However, it should not only be a help for me, but also for all others who want to build this project.
Of course, just as much as it Qiaozhi and Carl permit, because it's their idea and from your book.

Nelson, I am pleased that you want to build a totem too, and of course everybody else.
I hope that together we can make a good Thread with lots of information put up and at the end an interesting project and perhaps even an working PD build.

I wish you a great vacations and a happy new year, well as all other of course too.

regards

Goldmaxx

[nelson]

I know you will get success with TOTem
To be honest i just think all this kind of devices really works and if some of them not work has expected, is because is bad tuned. To me the clue is to get TOTem well tuned and this is the hard part that must be worked together with members.

Thaks for your wishes and let me said to you and your family and members the best wiches for the new year 2013.

Best regards

Nelson

Originally Posted by Goldmaxx

Hi nelson,

thank you very much and also for the tip. I will try to gradually my complete setup of Totem documented and am happy for all the help I can get.
However, it should not only be a help for me, but also for all others who want to build this project.
Of course, just as much as it Qiaozhi and Carl permit, because it's their idea and from your book.

Nelson, I am pleased that you want to build a totem too, and of course everybody else.
I hope that together we can make a good Thread with lots of information put up and at the end an interesting project and perhaps even an working PD build.

I wish you a great vacations and a happy new year, well as all other of course too.

regards

Goldmaxx

[Goldmaxx]

Originally Posted by nelson

I know you will get success with TOTem
To be honest i just think all this kind of devices really works and if some of them not work has expected, is because is bad tuned. To me the clue is to get TOTem well tuned and this is the hard part that must be worked together with members.

Thaks for your wishes and let me said to you and your family and members the best wiches for the new year 2013.

Best regards

Nelson

Hi nelson,

that is true what you say, the most difficult will be the calibration of the unit.
This is my first PD I'm building, because it is well documented in the book and I'm sure that you really do with the TOTeM as the first project,
can be learned a lot about the function of such devices.
For me it is very exciting and I'm very curious if it works.

But I am sure that together we will create a good calibration.

Thank you for your wish, I wish you and your family back.

best regards

[Goldmaxx]

Hi to all

I hope that you all came well in the new year and above all that the new year will be better than the old.

I had some time and the days have continued to make at my TOTeM project.

First, I have completed the PCB. I soldered the missing transistors and the connecting cables. It looks quite good, I just hope that it works.

Here pictures of it

[Goldmaxx]

Originally Posted by mohamadder

HI
HOW ARE YOU SIR?
DO YOU HAVE TOTEM PD PCB FILE IN PROTEL OR PROTEUS FORMAT???
THANKS
I AM WAITING YOUR ANSWER IN FORUM

Hi mohamadder

Sorry, but I have only the book “Inside the METAL DETECTOR” from Qiaozhi.
It includes all the details to build a TOTeM PD. I can only recommend this book.
I am a LRLnewbie and have learned a lot about LRL with the book from Carl and Qiaozhi.
Of course, I am experimenting further with the TOTeM.

Check out the thread from Sneshko that he could publish something from the book

Here is the link

http://www.longrangelocators.com/for...ad.php?t=18794


Hi Nicolas

I have made some small modifications to the TOTeM, but I can not test the device properly.
The problem is that I need a target (phenomenon) in order to locate it and to calibrate the device after that. I have done many tests on places, where what could be, but all without success.
I also think that, as you have already written, the problem is together with the right frequency in my country.
For this reason, I've built up from a few months ago, a small test field and buried silver coins. I hope that in a few months is build a small "phenomenon" that I can calibrate a LRL and locate it.

Now it is winter by us and I can not make any tests outdoors. But I still have some projects, that I want to build and test them in the summer.


Best regards to all

[jokoboko]

is the ferrite antenna at 65 khz?
Or 100 khz ??