My TOTeM project

[HaFar2010]

I'm doing my TOTeM and I used this PCB but it gave an error, by verifying the original scheme I realized this. I would like to know if someone uses this PCB. Thank you all.
[ATTACH]19924[/ATTACH]

My friend, the PCB doesn't have any problem. You should check other issues.

[aress]

Printed circuit

Hello friends I want to make the project complex I would like to thank you how I can find the printing circuit and schematic

[Arionas]

http://www.longrangelocators.com/forums/showthread.php?t=19245&highlight=TOTeM

[Qiaozhi]

One improvement you can make to the TOTeM design is to use a 12V power source with a 9V regulator. This will stop the settings from drifting due to temperature or time.

[aress]

Running pcb drawing

Thank you arionas print circuit pcb drawing i have a friend who will send me drawing pcb drawing i dont know respects

[VECTROUM]

Hello i finaly made the Totem, but i can not detect metal only battery spark and magnets.Can anyone help?
Thank you.

[sakher]

hello my frind
i need a help plz..
can i replace CA3240 with tl071?
if not what is the all Alternatives?
thank you...

[GOLDEN LILLY]

Why is my totem never stops beeping? I check everything but same thing happens. Please help....

[Geo]

hello my frind
i need a help plz..
can i replace CA3240 with tl071?
if not what is the all Alternatives?
thank you...

Try TL072.
It is a dual Opamp. Maybe to works...

[Geo]

Why is my totem never stops beeping? I check everything but same thing happens. Please help....

I never constructed the Totem but your problem seems to me as an oscillation. Check the wires (don't have long wires).
Sometimes is happening an oscillation when the buzzer start to beep. If so, put the coil or the buzzer at longer distance. I had same problem with Andy Flind's MFD.

[jokoboko]

FERITTE ANTENNA

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

[Anwar2]

Hello i finaly made the Totem, but i can not detect metal only battery spark and magnets.Can anyone help?
Thank you.

yes i made this tetom also my one detect electronc sparks only nothing else

[Pahom]

yes i made this tetom also my one detect electronc sparks only nothing else

This means it wasn't configured properly.

https://www.youtube.com/watch?v=DLJmP62wMQM

[ERDOGAN37]

Totem

https://youtu.be/4yy0H9s2SaE?si=xfFpb_9X0B3BDMpY