Serbian pi Gold-Skan

[greylourie]

Wow ! Eduardo, you built that very fast !

Please give us feedback on performance, once you have attempted the fixes suggested by Orbit #45. Also you can check Jose work here : http://www.geotech1.com/forums/showt...403#post181403

[eduardo1979]

Ok. Soon I'll put a video. This afternoon I will correct the mistakes of the PCB.

[eduardo1979]

just cut Ties to 2 and 3 pins lm 358 and Rotate them




ties with cd 4066 what goes on 3 to the 2 and ties with cd 4066 what goes on 2 to 3 pins lm 358 !











That's the only error but only to the pcb I think the scheme is OK ![ATTACH]30662[/ATTACH][ATTACH]30663[/ATTACH]

That does not work. I cut the ski pins 2 and 3 of the LM358 and have reversed. When iron is discriminated, all types of metal are discriminated. No my disposal which can pasar.No FET J113, but I've replaced BF245. I comprobdo terminals G, S, D. I think I've done everything right. Orbit, I hope your help. Thanks in advance.

[Orbit]

no nothing
not upgraded !it works fine the way it is .but set channel iron rv 8 the longer the sampling than 50us-75us and older , or simply turn rv 8 of 80k or 100k and the Lock with RV 3 adjustable discrimination .delay




set maximum 25us and it should work

[Orbit]

rv8 you can replace with 100k of 250k enable even longer delay all trimmer potentiometers adjusts while down the key the reset set all voltages exactly for zero voltage ,necessarily reset must be connected as is done adjustment , rv 4 sets opening gates j 113 fet performed only reset voltage pin 3 u 5 a and pin 10 u 5c it is understood . r 20 instead of 51k set 240k .

[seadoggy]

hello mates how make coil for this kind of metal detector?
coil inductance??
shape of coil?

[Orbit]

the same who for surf pi or
in diameter 25cm Wind up 21 circle copper wire 0.50mm.

[seadoggy]

the same who for surf pi or
in diameter 25cm Wind up 21 circle copper wire 0.50mm.

hvala prijatelju.
thanks friend.

[Orbit]

nema na cemu !
all the best!

[seadoggy]

Here is my GS-6. The detector works properly in all metal mode. Disriminacion mode does not work. There is no type of discrimination. I have checked all the components, I made all measurements, but without any success. No what can happen with discrimination. I need help. Orbit Thanks for your great work.

hi eduardo on your GS-6 the discrimination not working or u not finish all pcb??
regards

[Orbit]

most of from the forum I believe that they are not view never how it works
Original goldskan 4 .
imagines the it should be like the VLF but not so !to really work you will see these days recorders




klip with the original goldskan 4 detektors to actually work ,To have insight What to Expect !

[seadoggy]

Orbit on your homemade GS-6 do discrimination mode working??
i also search GS4 pcb layout without SMD parts.
I see on youtube Jose make good GS4 but i dont know what version pcb he used.
Regards

[Orbit]

working as well as the GS 4 !
Original gs4 is not SMD which is a version of has made Jose I do not know .

[paku]

Orbit can you send to me your version of GS 6 the detail schematic and layout

[TH Jim]

Hi folks,

I see a lot of similarities on these GS schematics to the SurfPI circiut. I have a load of spare parts for surfPI, so I'd like to build one of these GoldScans, but. Apart from Orbit, has anyone else got one of these GS machines to work well, i.e with working iron discrimination?

Regards, Jim.