TESORO GOLDEN SABRE

[Qiaozhi]

Sure thing!

Version 2.0 posted here -> http://www.geotech1.com/forums/showthread.php?t=15710

[simonbaker]

Ehhh! You are one pretty neat man, i must admit.

1. BD140 is BD140, despite my mistake when drawing schematic. I seriously doubt that anybody will pay such attention and mix BD140(PNP) with some other NPN. However you are right and it is good to fix that.
2. 5K1 and 4K7 will do the very same job. Doesn't really matter which one you put there. At most of local shops is impossiblle to find 5K1, so as i heared from other people in surrounding countries. Yet there are some shops where those can be obtained. So...5K1 or 4K7 ...trust me, no differences in this particular design. I tried both at many handmades. Not important at all.
3. Same thing as with 5K1. 24K is sometimes pretty hard to obtain. 22K tested many times and working same as 24K...Not important at all.
4. two back to back polarized 10uF elcos have exactly the same effect as one not polarized 5uF. Not important at all.
5. Diode in schematic and not on pcb. Never mind at all. I put that diode in process of experimenting. With or without it - the same thing. Your choice.
With diode included i noticed some minor improvements. Bairly noticeable, only with scope. Not important at all.
6. LM358 is going to +12, BUT it does make sence only if you include battery test components. Otherwise it is not important at all if it is gonna go to +12V or to +8V. Not important at all. No differences at all.

So...helpful to beginners is just to obey pcb and components placements i posted there. Schematic is just for illustration there.
Yet i agree Qiaozhi to change files there with your corrections. Suits me.
It is better to have all the details corrected 100%.
In both cases i agree.
Regards!

Ehhh! You are one pretty neat man, i must admit

Exact opposite in daily life sad to say . All thumbs when building devices, everything ugly... how you make so pretty???

Ivconic exactly right, I should have made more clear -- schematic would work fine as is, just not same as TGSFinal PCB.... but good as general guide.

Only reason for matching schematic is this: poor beginner (me) builds MD, needs to troubleshoot, looks at schematic to put oscilloscope probe, where is 5.1 resistor??? Have to follow traces, but brain is weak, is it right spot???? Too much confusion, put MD in trash, spend money on Tequila instead.... hey, on second thought, keep the original schematic!!!

Now I keep trying to get more than 15 cm... maybe viagra helps...

Salud!

-SB

[geminis74]

Hi, sorry for my English, I'm Spanish.
R52 and R55 are 330k or 330 Ohm

[ivconic]

Hi, sorry for my English, I'm Spanish.
R52 and R55 are 330k or 330 Ohm

330 Ohm

[metaldetector107]

TGSL GEB

Dear qiaozhe
thanksi got it ((TGSL - complete details)) its really very helpful but can ask ivconic to make another detail but this time about TGSL troublshoots and maintenance.
Dear Ivconic
i can not reject a 8cm long ferreit from Raddio antenna tottaly up to 4-5cm it rejects totally but say about 1-2-3cm it detects

is it ok????

another thing this time i made wirement as you described what the hell!!!
its really satible but during detecting the sound is not single sound especially when the signal is strong?

kind rgrads

[Max]

Exact opposite in daily life sad to say . All thumbs when building devices, everything ugly... how you make so pretty???

Ivconic exactly right, I should have made more clear -- schematic would work fine as is, just not same as TGSFinal PCB.... but good as general guide.

Only reason for matching schematic is this: poor beginner (me) builds MD, needs to troubleshoot, looks at schematic to put oscilloscope probe, where is 5.1 resistor??? Have to follow traces, but brain is weak, is it right spot???? Too much confusion, put MD in trash, spend money on Tequila instead.... hey, on second thought, keep the original schematic!!!

Now I keep trying to get more than 15 cm... maybe viagra helps...

Salud!

-SB

Just 15cm !?

Have you considered surgery ?

BTW... just 15cm really ??? On a single coin ??? So bad ??? I don't understand...

Kind regards,
Max

[simonbaker]

Just 15cm !?

Have you considered surgery ?

BTW... just 15cm really ??? On a single coin ??? So bad ??? I don't understand...

Kind regards,
Max

I have two circuits; one soldered, one breadboard. Several coils -- some shielded, some not, none cemented permanently. I think I had one configuration around 20 cm, but at moment not so good. I'm not sure why so bad, but I'm trying like hell to figure it out....

I still have "sloppy" setup with loose wires, open cases, so can't be sure, but I think you and Ivconic would get better depth if you opened your cases and used temporary coils similarly. My cables are simple RCA stereo audio cables, maybe not so good?... I have so many things to check. One day I hope to build "exact" copy of TGSLFinal to see if perfect neatness is the answer.

Some people got it, some don't... but I'm having fun (I think...)

Cheers,

-SB

[simonbaker]

Version 2.0 posted here -> http://www.geotech1.com/forums/showthread.php?t=15710

Damn, I'm sorry, I was not neat enough... made mistake labeling R13 in schematic.

Here is fixed version; I don't know how to make PDF (excellent image compression!!! What program???).

Since purpose is exactness, I guess we should update with this...

Regards,

-SB

[metaldetector107]

mayday mayday

Dear Max Ivco Qiaozhe and all

please a bit help, my TGSL doent reject knives and ointment tube!!??

kind regrads

[nakky]

[quote=simonbaker;95646]I have two circuits; one soldered, one breadboard. Several coils -- some shielded, some not, none cemented permanently. I think I had one configuration around 20 cm, but at moment not so good. I'm not sure why so bad, but I'm trying like hell to figure it out

Simon,make it simple,use Qiaozhi's 2e coil calculator ,use OO coil's TX 6.0+- mh and RX +- 6.50 mh,but make good shielding very important,less splutters and more sensitive, later make DD coil, and have fun .Grt Nakky.

[simonbaker]

[quote=nakky;95649]

I have two circuits; one soldered, one breadboard. Several coils -- some shielded, some not, none cemented permanently. I think I had one configuration around 20 cm, but at moment not so good. I'm not sure why so bad, but I'm trying like hell to figure it out

Simon,make it simple,use Qiaozhi's 2e coil calculator ,use OO coil's TX 6.0+- mh and RX +- 6.50 mh,but make good shielding very important,less splutters and more sensitive, later make DD coil, and have fun .Grt Nakky.

I think I will probably try that eventually. Many ways to shield though.

I think C6 .015u cap somewhat important -- may vary from .13u to .017u because caps often crappy made... so good to check it if making coils exact.

Regards,

-SB

[ivconic]

Damn, I'm sorry, I was not neat enough... made mistake labeling R13 in schematic.

Here is fixed version; I don't know how to make PDF (excellent image compression!!! What program???).

Since purpose is exactness, I guess we should update with this...

Regards,

-SB

Eh! We can go like this forever! That's why i think it is not important. What really is important is already available in posted documentation.
For those who could not understand such simple and clear documentation - they better give up of making any kind of handmades. Better go shoping and buy some brand new original.
It is trivial to explain each detail...like BD140 transistor or components designators and labels in schematic!
This way main subject is diluted and spoiled...
But... it is spoiled already! Long time ago!
Cheers!

[nakky]

Money Detector . Grt Nakky http://www.youtube.com/watch?v=OZ5vtNDTr0k

[ivconic]

Dear Max Ivco Qiaozhe and all

please a bit help, my TGSL doent reject knives and ointment tube!!??

kind regrads

So what?.... So you are now having splendid knives&tubes detector! What's the problem?

[peroon]

Dear Max Ivco Qiaozhe and all
my TGSL can not reject iron elephant!
Please help!