TESORO GOLDEN SABRE

[sdesic]

I was reading schematics wrong then, thanks.
Now I will try everything mounted.

[paku]

I was reading schematics wrong then, thanks.
Now I will try everything mounted.

yea try and try but when you fix that you will get other problem hehheh
then when you fix that other problem you will have other more problem
TGSL there is something wrong at board we dont know

[manny77]

Paku...
Anyway pay great attention to soldering, component placement and direction and double..triple check everithing.
Transistors and fet could present inverted internally pinout respect silkscreen. Check ECB and DSG of them...they could be inverted respect pcb. My fets for example was inverted...lot of time to figure and fix problem for me.
And coil too was a difficult thing to make...

Better to invest time to check everything respect find and fix malfunctioning later....
My hint of the day...

[sdesic]

TGSL is working - detecting OK, on first power UP. (after two tryouts without all ICs and coil)
I was not shure about it working with all components but there it is.

Now I need to build coil shielding and box etc.

Paku you have problems of other kind, I have build one more TGSL EDU from Silverdogs KIT and it it is working also.

I am fine with device, only problem for me is tricky adjustment of phase or null.
Now I have oscilloscope (USB PC oscilloscope) so I hope that I can get more from it.

Thank you manny77.

[manny77]

Happy for your successful build sdesic!
Now the best part...hope it could be a nice machine!

[sdesic]

I am going to use mylar shielding - space blanket for this coil.
I was late to find that I need to leave one turn off glued part but ... what can I do now ...
Will use hot glue instead of epoxy as my last one got to 150mV from 4mV before...
Everythig else is art of making detector.

[paku]

TGSL is working - detecting OK, on first power UP. (after two tryouts without all ICs and coil)
I was not shure about it working with all components but there it is.

Now I need to build coil shielding and box etc.

Paku you have problems of other kind, I have build one more TGSL EDU from Silverdogs KIT and it it is working also.

I am fine with device, only problem for me is tricky adjustment of phase or null.
Now I have oscilloscope (USB PC oscilloscope) so I hope that I can get more from it.

Thank you manny77.

Yea Also You Can Fix It Dont Forget To Share
Try Replace 15n with 18n then null the coil

this is my bad TGSL Video that is 4 month ago
http://www.youtube.com/watch?v=W2BfmYQmaDk

but now is not working

[sdesic]

Yea Also You Can Fix It Dont Forget To Share
Try Replace 15n with 18n then null the coil

this is my bad TGSL Video that is 4 month ago
http://www.youtube.com/watch?v=W2BfmYQmaDk

but now is not working

What happened with your TGSL ?
I see that there was great depth.

[paku]

I WIll Tell My Problem When You Finish Your Tgsl And Test In Land and test with Gold

[der_fisherman]

USB Scope questions!!! (and sound card scopes too!!)

I am fine with device, only problem for me is tricky adjustment of phase or null.
Now I have oscilloscope (USB PC oscilloscope) so I hope that I can get more from it.
Thank you manny77.

I am very interested for a friend of mine as to which USB scope you have, how well you get on with such a scope and if you used a normal one BEFORE you got the USB version? As with previous experience on any scope, your replies could be very helpful for others here without a normal scope!!!

Please chime in anyone else who has USB scope experience with full details as you see them including make, model and price/cost if you built it from parts or even a kit.

I personally imagine that such a device, properly made, would be really useful for setting up any low to medium speed signals like a metal detector for example.....in fact anything within the audible frequency range up to around 16Khz (for younger members at least!).... But it would not surprise me personally for a well designed USB scope to be usable far above this frequency.

Also, anyone using a PC Sound card scope, should also chime in with their experiences too as they will probably be even cheaper to make even than a USB version....

Thanks to all
Andy

[sdesic]

I am very interested for a friend of mine as to which USB scope you have, how well you get on with such a scope and if you used a normal one BEFORE you got the USB version? As with previous experience on any scope, your replies could be very helpful for others here without a normal scope!!!

Please chime in anyone else who has USB scope experience with full details as you see them including make, model and price/cost if you built it from parts or even a kit.

I personally imagine that such a device, properly made, would be really useful for setting up any low to medium speed signals like a metal detector for example.....in fact anything within the audible frequency range up to around 16Khz (for younger members at least!).... But it would not surprise me personally for a well designed USB scope to be usable far above this frequency.

Also, anyone using a PC Sound card scope, should also chime in with their experiences too as they will probably be even cheaper to make even than a USB version....

Thanks to all
Andy

I have this scope Hantek6022BE PC USB 2CH Digital Oscilloscope 20MHz 48M.
I have not used it much so I can't tell you anything ... from its info I bought it and it should be fine for our work with detectors.
Don't have any experience with real scope and I have some usage of audio card scope
(managed to repair TGSL with lots of help from friends from geotech).

Hantek6022BE sells about 65$ US on Ebay with postage so I think it is good choice.
I am planing to use it to adjust this TGSL and its coil.

[sdesic]

If you have any test for it I can do it for you and post screenshot here.
I am using it with mini laptop - working on batteries.

[der_fisherman]

I have this scope Hantek6022BE PC USB 2CH Digital Oscilloscope 20MHz 48M.
I have not used it much so I can't tell you anything ... from its info I bought it and it should be fine for our work with detectors.
Don't have any experience with real scope and I have some usage of audio card scope
(managed to repair TGSL with lots of help from friends from geotech).

Hantek6022BE sells about 65$ US on Ebay with postage so I think it is good choice.
I am planing to use it to adjust this TGSL and its coil.

Good solid feedback, many thanks.
Please continue to keep us posted.
Pictures, if possible, would be fantastic too.....
Best of luck and thanks again,
Andy

[der_fisherman]

Hantek USB Scope YouTube videos

I found some YouTube videos or this product for anyone interested, check here:-

https://www.youtube.com/watch?v=m1WVZf5cuQE&hd=1

https://www.youtube.com/watch?v=ZvHAlTTriwY&hd=1

Looks to be a solid well built piece of kit, the 2 x probes alone might cost about the same as the whole unit on ebay!!

The first video picture is a bit fuzzy, but you can see the PC display and it looks excellent. The second is Spanish I would guess, but the video quality is far far better.

regards

Andy

[sdesic]

TGSL test points 1, 2, 4, 5 (gate TR4 and gate TR5)