TESORO GOLDEN SABRE

[Legaucho]

About LF 353

Hi all
I had build the TGS and it work fine but I would like to know which type of lf 353 I can use for the better result: LF353A , LF353B or LF353C
Many thanks by advance

[ivconic]

"..Have you read the mistake that i found missing 1n4148 near ic7 ?.."

Cant say is it more stabile with it? It is present at TGSL pcb already.
I made first TGS on larger pcb and it is working fine, but i already put that diode than.

[ivconic]

Hi all
I had build the TGS and it work fine but I would like to know which type of lf 353 I can use for the better result: LF353A , LF353B or LF353C
Many thanks by advance

??? I havent seen a,b,c versions so far???

I am using LF353p always...

[Legaucho]

BF245 on TGS

??? I havent seen a,b,c versions so far???

I am using LF353p always...

Sorry for my mistake, I don't know why I put this, I want just to know Which one is better: BF245A,BF245B or BF245C

Many Thanks

[Max]

Hi all
I had build the TGS and it work fine but I would like to know which type of lf 353 I can use for the better result: LF353A , LF353B or LF353C
Many thanks by advance

Hi,
not big difference. I found that A and AN versions are little better on mine... but cannot say it's always better choice... you have to try them on real circuit to say.

It's about the same.... but if you can find e.g. AN version try it... some are really good on TGS... and only way to know about is trying them on TGS.

Kind regards,
Max

[Max]

Sorry for my mistake, I don't know why I put this, I want just to know Which one is better: BF245A,BF245B or BF245C

Many Thanks

Same of above....

No big differences.

Kind regards,
Max

[Max]

??? I havent seen a,b,c versions so far???

I am using LF353p always...

Hi,
not A, B, C... but there are versions like "A", "AH", "AN", "N" or "P" etc by various manifacturers.

I've tested A, AN, N and P so far... all about the same and no big differences... just found a couple of AN that give better response to targets and without losing stability there. Maybe depends on manifacturing process at factories... don't know... but just some are little better than others medium kind.

I think is not a great issue... anyway... these things are now really obsolete stuff and difficault to find.

Good alternatives could be e.g. MC34002AP or similar stuff.

PS: BH kind exist but I don't know about it... never saw one... is TO-78 thing. "B" and "C" only instead I think were never produced.

Kind regards,
Max

[Legaucho]

TGS

Hi,
not big difference. I found that A and AN versions are little better on mine... but cannot say it's always better choice... you have to try them on real circuit to say.

It's about the same.... but if you can find e.g. AN version try it... some are really good on TGS... and only way to know about is trying them on TGS.

Kind regards,
Max

Many thanks for your informations
Kind regards
Legaucho

[junko]

Now I have solved the problem with the coil and cable.
On the table i have good result more of 25 cm 1 euro .
And a more big mass 40-60 cm.
All Ok.....
I have try to check on the real soil on the seaside .
It' s like a bed of nails....
Too echo totally indistinguible.
I have put a potentiometer in geb regulation for a fine according but no result.
My shelding it' s good i thinks.
I will try to change the fet Bf 245c versus Bf245a
i suspect spikes and a bad demodulation.
Bye
Junko

[tiktak]

Hi ,

ospecting...
Despite other machines i have/had (Garrett GTI2500, Eagle II,1266,Colt,1220B,CZ5,Troy X3....) i do respect this TGS much cose it showed as very useable and much faster to work with than many others.
Second one i can put in my favorite list should be Troy X3 (no doubts)! But sad fact is my X3 is unadjusted and temporary unuseable....Damn!
Regards![/quote]

Hi,
Ivconic.
How are you lately?Have you make some prospecting lately?Any new finds?

I were aweys curies about this but havent any spare time to ask you.
When you compare TGS with Garrett GTI2500 what are the results?
I were planing to buy such but then I have found this forum Max and You,and I have invested my buget in TGS.
I am very happy with this my desition because I have bought MD3040 this were my first detector and have confused me very much!!!!!!!
Stupid china toy.
I have never found ancient coin with this....................I have spend meny hours in wondering why my expencive detector it cost me then around 250 euro,cant detect anything and in the same time my frends have many finds with their home made machines.
Thats why I wanna now is this Garrett so good as they told?Obviusly not but agree with me that this is hard to belive.

Thanks

I have saw a nice plastic coil housing for DD 37,5!Plase advice me with how much turns for TX and RX should I try to make coil for TGS?
I now that when I go to old fortress and rockhills I will have trubles,but I think that this coil will be DEEP in soil!Wont you agree.As I told you many times I saw 40 cm coil,this is the same.........people dont make this with no reason,they try to go deeper.This instability should be compensated somehow.This 37,5 is outher border of the inner side of housing.
You told somewhere that your friend JD have made 50cm for his CZ!!!
So everything is pointing that we should search for bigger coil.
When I looked at some garrett coil page they told that only their coil for GTI2500 have an extra winding that gives info about ithems depth!!!
Can you add something like this for TGS

[ivconic]

ospecting...
Despite other machines i have/had (Garrett GTI2500, Eagle II,1266,Colt,1220B,CZ5,Troy X3....) i do respect this TGS much cose it showed as very useable and much faster to work with than many others.
Second one i can put in my favorite list should be Troy X3 (no doubts)! But sad fact is my X3 is unadjusted and temporary unuseable....Damn!
Regards!

Hi,
Ivconic.
How are you lately?Have you make some prospecting lately?Any new finds?

I were aweys curies about this but havent any spare time to ask you.
When you compare TGS with Garrett GTI2500 what are the results?
I were planing to buy such but then I have found this forum Max and You,and I have invested my buget in TGS.
I am very happy with this my desition because I have bought MD3040 this were my first detector and have confused me very much!!!!!!!
Stupid china toy.
I have never found ancient coin with this....................I have spend meny hours in wondering why my expencive detector it cost me then around 250 euro,cant detect anything and in the same time my frends have many finds with their home made machines.
Thats why I wanna now is this Garrett so good as they told?Obviusly not but agree with me that this is hard to belive.

Thanks

I have saw a nice plastic coil housing for DD 37,5!Plase advice me with how much turns for TX and RX should I try to make coil for TGS?
I now that when I go to old fortress and rockhills I will have trubles,but I think that this coil will be DEEP in soil!Wont you agree.As I told you many times I saw 40 cm coil,this is the same.........people dont make this with no reason,they try to go deeper.This instability should be compensated somehow.This 37,5 is outher border of the inner side of housing.
You told somewhere that your friend JD have made 50cm for his CZ!!!
So everything is pointing that we should search for bigger coil.
When I looked at some garrett coil page they told that only their coil for GTI2500 have an extra winding that gives info about ithems depth!!!
Can you add something like this for TGS[/quote]


Hi TikTak, you quoted my short comment about various md's. Well it will need much more to explain those than just a few words. I will not do that cose you have much better explanations here on this forum and all over the net. Each of mentioned md has its benefits and drawbacks. That's why this world is so beautifull! Uniforming would make it much worse.
TGS, considering it as handmade, is really worth of making and working with it. Especially on coinshooting. But to find any coins, those must be burried in ground! You cant find any coins on places they dont exist. You must involve here some history and find some spots where possible you can find something.
Garrett GTI2500...among few drawbacks, it is still state of the art of machine. Main drawback is not so good discrimination with all coils came with it. Small coils are better for shallow depth and GTI have better discrimination with it. Larger diammeter coils goes very deep but have worse discrimination. But i guess it is the case with all other brands too. I do suggest you to buy GTI if you can afford. No words can substitute your own experience. But as with DXF,Explorer,X-Terra,Eagle and simillar "digital" macines, also with GTI you cant learn to work with, fast, for one day.It will need week or two on various terrains you to spend and examine all its functions and proper preseting of those, to make it working the way it suits your needs.
That's why you can read such different critics and comments about those. Some people claims those are not so good as advertised, some other claims those are excellent machines. I would rather say that it depends of operater's skill mostly.
Yes, yesterday i went outdoor for the first time in this year and found 14 roman coins from V century, one bronze brace and few lead bullets from 19 century. Not so bad for a start.
If you use that 37.5 coil with TGS, be sure you will loose some of discrimination and stabillity. Also it will not go so deep as you might be expecting. I noticed my 32cm coil is not much deeper than 27cm. Other hand 27cm is absolutely stabile without falses and discrimination is excellent.
TGS oscillator is very low power, adding larger diammeter coils would not help much on depths.Mainly it is designed for locating very small items in the ground. Modding oscillator and adding more power will add some depths for sure and than larger diammeter coils will make some sence. But that is another story. I actually never thought seriously on that, since i am interested mostly on smaller items, coins preferably. But that is because of fact that i am surrounded with that kind of terrains, to many ancient locations. Real nature of terrains you are planing to visit will distinguish your needs. Therefore you have to decide on your own.
Regards!

[greg59]

need infos

Hi,

I would like to make the Golden Sabre but what is the size of the pcb in the zip file "TesorroGoldensabrezelfbouw1.zip" ?

And what is the frequency of the Golden Sabre ( i'm not sure ) : 12 or 15 Khz ?

Is it the 2 tones versions or not ?

Thank you very munch for your answer.
greg

[Max]

Hi,

I would like to make the Golden Sabre but what is the size of the pcb in the zip file "TesorroGoldensabrezelfbouw1.zip" ?

And what is the frequency of the Golden Sabre ( i'm not sure ) : 12 or 15 Khz ?

Is it the 2 tones versions or not ?

Thank you very munch for your answer.
greg

Hi,
do you mean the original PCB from deutch project ? It's something 10x13cm don't remember now exactly... but is not really large like other stuff: it's medium thing

Frequency officially is 14KHz: actually anything from 14 to 15KHz is good on it... better if you have 14.6-14.7KHz

No... it's not 2 tones... not this version: the czech version of sabre is two tones... but is different from original TGS

Kind regards,
Max

[greg59]

Need infos

Hi Max,

Thanks for your answer.

In the manual of golden sabre ( http://www.tesoro.com/Golden_Sabre_Manual.html ) : the frequency is 12Khz
And in the manual of golden sabre plus ( http://www.tesoro.com/Golden_Sabre_Plus_Manual.html ) : the frequency is 15 Khz.

So if i build the Golden sabre with a tesoro coil : witch coil must i buy ?

The pcb in the archive file "TesorroGoldensabrezelfbouw1.zip", works or are there some mistakes ?

The 4 caps 4.7 Uf BI, means 4.7 Uf bipolar ( +/- ) ?

And near from the audio module, between pin 6 and pin 7 of the lm358, there is a cap : 100 nf is it the good value ?

Thank very munch

Greg

[Max]

Hi Max,

Thanks for your answer.

In the manual of golden sabre ( http://www.tesoro.com/Golden_Sabre_Manual.html ) : the frequency is 12Khz
And in the manual of golden sabre plus ( http://www.tesoro.com/Golden_Sabre_Plus_Manual.html ) : the frequency is 15 Khz.

So if i build the Golden sabre with a tesoro coil : witch coil must i buy ?

The pcb in the archive file "TesorroGoldensabrezelfbouw1.zip", works or are there some mistakes ?

The 4 caps 4.7 Uf BI, means 4.7 Uf bipolar ( +/- ) ?

And near from the audio module, between pin 6 and pin 7 of the lm358, there is a cap : 100 nf is it the good value ?

Thank very munch

Greg

Hi,
any uMax series coil will work... but find the 8'' polo coil or some 9x8'' spider.
You can try also 10'' thing... but is a bit heavy if I remember well.

About frequency... are the caps at TX part that give you these frequencies... and with values you see in schematic you'll get something 14-15KHz on uMax coils.

You can also build yourself using provided instructions in other previous posts in this thread.

The original deutch archive is ok... apart minor mistakes... and your device will work using that values and pcb... but better if you dig old posts for little corrections like 5pF instead of 10pF and the like.

4.7u caps are bipolar: you can use 2 normal electrolitics of 10uF with e.g. minus jointed (so you solder just "+" terminals on PCB) to make one 4u7 bipolar if cannot find already made stuff.

The 100n , if I remember well, is good there... you can lower its value to get faster response on device...like with 47n or 33n or also 22n but be careful cause lower value means you'll have also some more nervous detector: so use that mod just if your thing is already stable with 100n there.

Kind regards,
Max