TGSL prints

[blobber]

Thank you CDI, I will try SMT Bandido, but later. In 2010 I had made Bandido DIP, from a German forum with 2 pcb. It is working, in all metall mode I can reach only 33 cm.
But I had problem with discrimination, I was not able to found the mistake. So in my opinion TGSL is better.

[CDI]

I have that version with 2 pcb's but never maked one to see how it work's. That version is umax 2 version with some mistake.
Well, look's like diy tgsl can do double distance detection than factory one tgs.
Did u tried to replace LM308 with newer LT1115?
Btw, today tried to replace LM833 with LF357 and device is more quiet, i was realy suprised.

[blobber]

Aha..I don't know the difference about Bandido and umax2.
Yes I am very satisfied with my tgsl. Next weekend I have time, to finish the project, at first without vdi, the pic I have ordered from China, so I have to wait.
I tried also different chips to replace, I think LF357 too, but as I remember right, LM833 gives more gain. LT1115 I have not.

[CDI]

What about coil spec's? Diameter, inductance, resistance, wire? On my 3.0 version i'm using standard parameteres: 6 and 6.5 mh, wire is 0.27. Resistance about 22 - 23 ohm's. Size is 27 cm.

[blobber]

I have for my TGSL/Bandido coil
TX 6,0 mH, 20 Ohm, 99 turns 0,3mm
RX 6,5 mH, 21 Ohm, 104 turns 0,3 mm
DD27
but not sure about wire diameter

[CDI]

That's it. Almost the same.

[6666]

I have for my TGSL/Bandido coil
TX 6,0 mH, 20 Ohm, 99 turns 0,3mm
RX 6,5 mH, 21 Ohm, 104 turns 0,3 mm
DD27
but not sure about wire diameter

Is the the 0,33mm the wire diameter ?

[chevesne]

@ ripsdevala.

[ripsdevala]

@ ripsdevala.

[ATTACH]36911[/ATTACH]

Nothing change, still at 15cm

Guys tell me what to buy, HANTEK or INTRUSTAR?
I read some serious review about hantex and get a doubt about it.
INTRUSTAR
ISDS205A Virtual PC USB oscilloscope, 2CH 20 MHz 48MSa / s FFT analyzer, Data Logger
http://s.aliexpress.com/7NFf2qQv

HANTEK
From Factory Directly Hantek 6022BE 20MHz 2 channels 48MSa/s USB Digital Oscilloscope Dual Channel With 2 Probes
http://s.aliexpress.com/qayQfiAJ

[ripsdevala]

Blobber, is this a mod? 1N caps

[blobber]

No, it is 100 nF.

[ripsdevala]

[blobber]

About oscilloscope, I would say, both are good enough, I would choice the cheaper one of course.

[ripsdevala]

About oscilloscope, I would say, both are good enough, I would choice the cheaper one of course.

Okay then I pick intrustar, hantek clone but the review is good.

What about this blobber, im right, right?

[blobber]

As I already said, I change the connection until I get the best result. So I am not sure.
I think you have changed it already, right? When you get your oscilloscope, you will watch for the right wave form pin 7 of LF353 and TX/RX relationship in phase.