Metal detector Detech EDS Reacher

[Smirnov-Arta]

Good afternoon. Please help. Does anyone have the wiring diagram for the coil?

[reiv]

Hi,enybody knows value of this L choke in transmit, and transistors?

[exzakt]

After a few months of yousign the winner i can say that i am very happy with the gb mod but i have a problem.
i adapted a coil from tesoro tejon, it works perfectly but i loose 20% from the depth.
after google'ing i have discovered that detech winner is 90% the same with troy shaddow x5.
in an older toppic from this forum i have discovered this:

ACQ
Junior Member


Join DateApr 2010Posts2

Hi folks,

Sorry to bring up this old post but I need some help from the gurus. I'm not proficient in electronics so please bear with me.

The thing is it's quite difficult to find good coils for the X5 and seems some people have had some luck using SEF (12x10) coils with the X5. SEF coil pinout is as follows:

SEF
Pin 1 & 2 RX 36,6 ohms
Pin 3 & 4 TX 2,6 ohms.

TROY
Pin 1 & 2 RX 85 ohms
Pin 3 & 4 TX 15 ohms
Not sure of this since my multimeter reads different values

To do this they seem to change C7 capacitor to something around 220nF and I'd like to know if this make any sense to you guys since as I said before I'm not very knowledgeable in electronics.

Thanks
Antonio

the tesoro tejon coil has :

PIN 1 & 2 : 61,8 ohms
PIN 3 & 4 : 4,9 ohms



my quiestion is what SEF coil (12x10) have the specs from the quote above and for whitch unit is it made for, because the specs are exactly the same as for detech eds winner.


best wishes

[gae66]

6-pin code smd LTAF = help
6-pin code smd V719 = help
6-pin code smd A12 = help
5-pin code smd S50 = help

[Skippy]

LTAFJ = Linear Technology LT6230 op-amp
LTAFL = LT6233 op-amp

[gae66]

6-pin code smd LTAF = help
6-pin code smd V719 = help
6-pin code smd A12 = help
5-pin code smd S50 = help

[gae66]

hi can you tell me the value of inductance near the transistor thanks

[gae66]

prejudice may elencarmi inductor put the power level of the transistor to close on my winner is scorched and everything and I would like to replace it thanks a lot

[esimplex]

Thanks exzakt , I'll try to make the modify


Mauro

[exzakt]

-best way for you is to go to an electronist.here is a schematics for eds plus from an russian forum.he will know what to do if e see the detector and schematic.
-i dont recomand to nobody to make mods if he dont kow electronics.

WM6

Good work exzakt, congratulation.

Probably those "auto" selection is not factual auto, but usual fixed GB.

What about threshold?

-thanks WM6,abaut threshold its ok,but i need to make a fine setting from internal gain.in rest everything works ok.i can make easy GB on hot rocks because it has some problems with hot rocks with original fixed ground.
-in previous post with those accu. lipo is 17500 not 17650.better authonomy.
-overal it a good machine with good deep and stability.
-sorry for my english,hope you understant.

[esimplex]

Great job, can explain what is the modify?
thanks

PS -sorry for my English, I think it is terrible

[exzakt]

few pictures with with this mod.


- 2 battery 17650
-hope it was usefull.

[WM6]

-these auto ground is preset (fixed).in my case (hunting ground)it work nice but i think i won few centimetres using manual ground.i try to upload some pix but i dont know how.

Agree it is always worth to add Manual GB to VLF/IB design.

To add photo or drawing you can in open Reply window select Go Advanced button and then in expanded window select Manage Attachment to upload your photo in post.

[esimplex]

Could you tell me the changes you made on your Winner?

[exzakt]

-these auto ground is preset (fixed).in my case (hunting ground)it work nice but i think i won few centimetres using manual ground.i try to upload some pix but i dont know how.