Pulse IB discriminator (by Sasho - Varna)

[ivconic]

KT315 i have to much photos....whenerver i see photo of some detector i had and later sold, feel sad about it....My finances not allowed me to keep them all. Last few years very hard living here, so i had to sell many of them to collect money for everyday things - to survive! So i rather skip viewing those photos oftenly....

Geo, on first look all Tesoro's are same...that's what i thought also...But they are not! I made Silver Sabre and Golden Sabre....Not same, not even close!
Golden Sabre is much better...Machine itself is very well optimized, but main secret is in coil used with it...If you put some effort may gain better results with home made coil than with original...
Anker...? I have schematic but never tested it...have sort of aversion to that type of designs...dont know why, but just dont like to many power in TX.
I like calm and silent detectors - to produce sound inly when item is detected for real. Dont like noisy detectors. That's why Minelab is "Master"...although imanaged to beat even Minelab with my TGS...
Maybe i am wrong...dont know. Why dont you perform some field tests with Anker and post here? But field test mean you have to bury coin(cover with soil) and than try to locate it as deeper as possible WITHOUT FALSE SIGNALS AT ALL...Please do that with few coins and later report here....just for comparsion...Would you?
Take 2cm nickel coin,bury it at 30cm depth and try do detect it with Anker...
If Anker can detect it without one false signal and with 24cm coil...than it is good as TGS or even better! If not....than forget Anker and make TGS...
TGS is my favorite mostly cose it is very stabile on ground...no false signals at all. From time to time i have to check if it is turned ON???! Cose walking 100-200 meters through some forest without a "beep" sometimes confuses me....Simply; no item - no sound! Unlike "singing" CL3..
Again,please do some real tests outdoor and report here...
Best regards!

[Geo]

Entaxsi File

"CZ5 is a better detector. No GSabre could not beat in depth the CZ5."
Geo, my friend you are wrong! TGS Light is superior over CZ5 and CZ7....
Maybe this looks funny but it is fact!
Yes CZ5 is state of the art looking on tech involved and highest professional level of manufacturing but if we talk about depth on single coin - than TGS with home made coil is superior. Trust me, i do not want to lie to you.
I suggest you to make it and see yourself. You will be delited!
I had 1266, also i had CZ5 in 2002. I am fully awared of performances of both machines....CZ5 is unneccessary complicated....yet high tech for sure!


Yes Max, i did my dist. according to that schematic....It si working but not good....

Regards!

Hi Ivica .
I wish you are well
What i can say !!!!
Now i am very busy but when i will find free time i will give a try to the TGS. For me until now the best detector (most sensitive) is the Anker SS60. If TGS will be a bit sensitive than CL3 i will let the CL3 and i will put one TGS inside the box. If the things are as you say then there is not reason to construct other detectors. Only two... SS60 and TGS. Ohh my god .... what i will do at my free time ?????
My best regards

ps I am a litle negative with these detectors because they have 90% the same circuit with the same gain so i believe that they are about the same .... about .... about ...... about. ..... he...he

[kt315]

Ivconic, I keep a bunch of good quality photos of CZ-5's PCB. if you need...
I had seen it inside... because I did take fix out CZ-5...

yours

[ivconic]

Souvenir...

I still have photos of it...as souvenir! Looking at those suddenly become sad...!

[ivconic]

Latos!

"CZ5 is a better detector. No GSabre could not beat in depth the CZ5."
Geo, my friend you are wrong! TGS Light is superior over CZ5 and CZ7....
Maybe this looks funny but it is fact!
Yes CZ5 is state of the art looking on tech involved and highest professional level of manufacturing but if we talk about depth on single coin - than TGS with home made coil is superior. Trust me, i do not want to lie to you.
I suggest you to make it and see yourself. You will be delited!
I had 1266, also i had CZ5 in 2002. I am fully awared of performances of both machines....CZ5 is unneccessary complicated....yet high tech for sure!


Yes Max, i did my dist. according to that schematic....It si working but not good....

Regards!

[Max]

I am not sure it will work? Audio buffer at TGS - LM358 across that 27K is "pulling" some voltage in range -4.xx to +3.xx volts..if i measured correctly?
On my previous mod with LM566 i had to put extra fet J107 to trigg it to -12v...it showed as only way to make LM566 stage to work good. Direct connection gave a lot of saturation and various "squeeking" with noise...
Either some level converter should be applied before ordinary audio amp...?
I have rough idea on my mind,only dont have it as schematic yet. It seems it only few fets more can solve the problem. I am thinking to experiment with small capacitances arround gate and source to make some "delay".....we will see..
CZ5...? Ehm,at the time i was very impressed with it...Now my TGS runs deeper...Yet, i idore CZ sound!
Regards!

P.S.

Max, question for you;
right now i am making some guitar preamp, it is finished and working good.Next step is distortion. I made Shred Master from Marshall. It is working but...sound is much attenuated when Shred is ON. When switched OFF sound retreives at normal level???
Yes, i know that there must be some attenuation, since signal always have some losts when put through some filter (dist.) but this one has big lost???
I rechecked all, schematic, elements....All seems to be normal.
Maybe i used wrong type of capacitors??? I used ordinary, first i had handy..
Any experiences?

Hi,
about the marshall effect I have no direct experience with it, but think you could have a bad component value.

Saw many times this stuff, very common some years ago, but never opened one.

Yes there's always some attenuation but if is too hi there's something wrong in the circuit.

Anyway, that's the schematic I've found.
It's the same you have ?

Kind regards,
Max

[Ultimate_Haze]

Hi

like?

[Geo]

Hi ivconic,

BTW do you think that GSabre could beat in depth also CZ5 with same diameter coil ?
I'm puzzled about that cause of special spider coil GS haven't and cause of mosfet,
much powerful tx stage of CZ5.


Kind regards,
Max

Hi Max.
CZ5 is a better detector. No GSabre could not beat in depth the CZ5.
As i wrote a previous time Tesoro build simple , good and stable detectors with Medium depth, so if you want something better in depth you must construct something else.
Regards

[ivconic]

Yes, those are same.
I posted schematic of mod in TGS thread.
Depth....already posted all my results there...
Read!

[tiktak]

HI,

Hi,
Ivconic.
I can find NE566N(NSC)is this the same IC as LM566N?
Can I use to modify TGS sound?
Thanks
And what is the depth of this coil?For 1 euro coin in air?DD28 for TGS?