IGSL

[Toros]

how do you export .lay pcb? i have only sprint layout demo, i need one of the pcb's black and white, >500dpi. N/MC/TC.lay. thank you!

Does the command "Print" works in this demo version.
If it works look at the upper right corner. There is a field "Layer". Тhere you can change the colors of all layers or exclude them from the print command.

[Davor]

You may use a Sprint Layout Viewer by ABACOM to view and print .lay files.

[ionut_mtb]

thank you Davor! only "problem" is that i wanted to modify pinswap like in picture attached in post #2025, in paint (easy for me) so i needed a pcb with high dpi to modify. i can print like that and do the pinswap like you said but i think is better to do it on pcb. thanks again!

[CDI]

Can somebody explain me connection for those yelow marked holes? Thank's

[bernte_one]

it is for tone selection

one channel for low tone (iron)

second mid or high tone - youn can choose which (non-iron)

if you learn how to adjust you can swith tone for every type of metal

https://www.youtube.com/watch?v=qhXHHOofZM0


https://www.youtube.com/watch?v=3SPuarDiRds

[CDI]

it is for tone selection

one channel for low tone (iron)

second mid or high tone - youn can choose which (non-iron)

if you learn how to adjust you can swith tone for every type of metal

https://www.youtube.com/watch?v=qhXHHOofZM0


https://www.youtube.com/watch?v=3SPuarDiRds

Ahaaaa, thank's bernte_one, i saw those your videos long time ago. Can you answer me on two question's?
1. How much good IGSL Musketeer perform in real soil if u tested?
2. Did u ever tried Detech 13 coil for Cibola, Tejon, Vaquero on IGSL and how it work's?
Thank's again.

[ivconic]

Ahaaaa, thank's bernte_one, i saw those your videos long time ago. Can you answer me on two question's?
1. How much good IGSL Musketeer perform in real soil if u tested?
2. Did u ever tried Detech 13 coil for Cibola, Tejon, Vaquero on IGSL and how it work's?
Thank's again.

It is very good for target separation in trashy soils. You are hearing all the signals with two tones and combination of those two. Difference is in pauses and periods in those two tones. What first tone is "detecting"; second one not, and vice versa.
It is not standard mixing, it is literally "two detectors" in one: one is strictly detecting ferrous metals and second one is strictly detecting non ferrous metals. Since neither one of those is not perfect (in this case it is benefit); both will give slightly jitters and "mistakes" and that will result in indeed rich variety of tones and combinations. Properly adjusted; it will not skip neither one target in soil; especially in cases with "masking" effect. And that was my main goal from the beginning. All the time i had exactly that on my mind. Because i spent a lot of time with TGSL on the field, and i saw exactly what it needs to be much better. Bad coins, very small coins and deep coins are usually missed with TGSL due stiff discrimination.
As dedicated and passionated coins hunter; i was focused only on how to solve that problem. Things can be done much better, of course. But IGSL is example of how things can be done on simple and cheap way.
Later on, with IGSL on the field; i collected indeed much more coins than before with TGSL. Especially silver ones. IGSL is just loving silver coins.
Must also point that all depends on coil. So far i had very best experiences with Minelab TS1000 coil and Tesoro coils from this series (Vaquero and Tejon coils): http://www.tesoro.com/product/coils/deltacoils.html

[ivconic]

Oh one more thing:
when choosing between those 4024 outs; it is desirable to pick two of those with lower frequencies.
I noticed better and more stable behavior with two lower tones than if higher ones are picked.
I am not sure why is that? I can only assume.
There are frequencies which will interfere more in the rest of circuitry, especially when amplified at the end.
Even worse if speaker is close to pcb and in same enclosure.
Maybe is good idea to put speaker in separate box under the elbow part of stem.
Along with battery maybe...

[CDI]

Thank's Ivica for this powerfull explanation, not expected less from u. Just like you, im coin hunter, but with this machine which i own now is deep without turning disc up. In the past, with this my classic 3 i missed many thin roman bronze coin's with disc set to reject roman nail's.
Later, when i went to back to those researched sites, but with minimum amount of disc, i digged all those bad signal's. It was small 0.5 coin's, Constantine III.
So i decided to give chance with igsl and some non homemade coil. I just want to ask u, which coil did u choise for very thin bronze and silver coins? Your vote will be TS 1000, but it's very hard to find one in good condition.
What about bigger coil? 12" for example? Or 12 x 10 SEF?

[ivconic]

Thank's Ivica for this powerfull explanation, not expected less from u. Just like you, im coin hunter, but with this machine which i own now is deep without turning disc up. In the past, with this my classic 3 i missed many thin roman bronze coin's with disc set to reject roman nail's.
Later, when i went to back to those researched sites, but with minimum amount of disc, i digged all those bad signal's. It was small 0.5 coin's, Constantine III.
So i decided to give chance with igsl and some non homemade coil. I just want to ask u, which coil did u choise for very thin bronze and silver coins? Your vote will be TS 1000, but it's very hard to find one in good condition.
What about bigger coil? 12" for example? Or 12 x 10 SEF?

I can't tell for sure, because i never had chance to test it with one of those coils.
But i think that smaller diameter coil shall give better results, em flux is "condensed" and more "focused" through the smaller diameter, especially at "low power" detector as IGSL is.
I know TS1000 is obsolete and hard to obtain; pity, it was most versatile coil that i have seen so far. I have used it on several different detectors with great success. It is also pretty tolerant.
Smaller "sister" of TS1000 is TS800, maybe it will also give good results on such targets.
And third one i used is Tesoro Delta 9x8 concentric coil, usually coming with Tesoro Tejon and Vaquero, this one:

[CDI]

I can't tell for sure, because i never had chance to test it with one of those coils.
But i think that smaller diameter coil shall give better results, em flux is "condensed" and more "focused" through the smaller diameter, especially at "low power" detector as IGSL is.
I know TS1000 is obsolete and hard to obtain; pity, it was most versatile coil that i have seen so far. I have used it on several different detectors with great success. It is also pretty tolerant.
Smaller "sister" of TS1000 is TS800, maybe it will also give good results on such targets.
And third one i used is Tesoro Delta 9x8 concentric coil, usually coming with Tesoro Tejon and Vaquero, this one: [ATTACH]34624[/ATTACH]

TS 800 gives 35 cm in the air with classic 3. The bad thing is hot rock cannot be fully rejected, but my friend digged pretty good and thin stuff with TS 800. Also, it's ultra, ultra light, with shaft i think it going to less than 300 gram's.
I know for 9x8, had one for my cortes, but 5 pin. 5.8mH and 6.2mH.
There is atm one TS 1000 coil on our Serbian kp (Kupujem Prodajem). But price, 130€.

[ivconic]

TS 800 gives 35 cm in the air with classic 3. The bad thing is hot rock cannot be fully rejected, but my friend digged pretty good and thin stuff with TS 800. Also, it's ultra, ultra light, with shaft i think it going to less than 300 gram's.
I know for 9x8, had one for my cortes, but 5 pin. 5.8mH and 6.2mH.
There is atm one TS 1000 coil on our Serbian kp (Kupujem Prodajem). But price, 130€.

"...The bad thing is hot rock cannot be fully rejected..."

It's most probably not matched well with Classic 3. I had similar problems with my diy Classic's and IDX's and some coils.
Some coils and detectors are not easy to match without more serious modifications on detector.
...
Yeah, i guess seller is taking advantage on fact that it is rare coil these days.

[Davor]

I get the best results when I overlap discrimination regions, and in effect obtain 3 tones. Many people complain about discrimination being restrictive, and rigs losing sensitivity near the discrimination edge, but not if you overlap the tones. I use aluminium foil crumpled into a ball to adjust the overlap tightly around foil, and it works like a charm. I do hear lumps of iron, and the most annoying pieces of iron wire, but these are properly indicated, and iron tone only dispels occasional beep in a non-ferrous side. It works best with modern steel-cored coins, because their iron core signal poops briefly when a coil passes them - it goes dah-deeee-dah - you just can't confuse those.

There is one thing I can't make time to try right now, but with a potential to make IGSL a perfect tool for difficult terrains. Right now I'm using effectively 3 out of 4 channels: Fe disc, non.Fe disc, and GB. Everything is dandy on easy terrains, but add a bit salt, and GB goes a long way up.
Problem is that all classic rigs have a GB channel that doubles as all-metal reference for discrimination. On easy terrains with low values of GB, it is very near a perfect all-metal reference, and all is fine. All metal is supposed to be aligned so that it rejects ferrite, but have a positive output for all metals. Now, when GB is used as all-metal, and value goes high, it gets divorced from the optimum all-metal reference, and you get falsing for counterphase responses, e.g. hot rocks.

To fix that I need to employ the 4th channel to be fixed at ferrites, and go to the phase comparators instead of GB, and I expect to get a superior device.

I already reduced the number of LPF stages, which reduced masking considerably. It is fast.

[Koala]

I have just built a 6" concentric for my Bandido . With small coins like silver sixpence I experience no loss of depth over a 10 DD and gain depth if the coin is on its edge. A small fibula the 6" coil just has the edge.


Only been out with it twice but when I tip my finds bag out there appear to much more of the smaller fragments than I had before.


I sacrifice 4" on larger coins but gain on coins on there edge. Only time will tell but so far so good.


Don't know if a factory 5.75" works as good.

[CDI]

I have just built a 6" concentric for my Bandido . With small coins like silver sixpence I experience no loss of depth over a 10 DD and gain depth if the coin is on its edge. A small fibula the 6" coil just has the edge.


Only been out with it twice but when I tip my finds bag out there appear to much more of the smaller fragments than I had before.


I sacrifice 4" on larger coins but gain on coins on there edge. Only time will tell but so far so good.


Don't know if a factory 5.75" works as good.

I'm sorry for going in offtopic, can u post lay file for your Bandido?