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[eduardo1979]

Air test:1€ coin 55cm whith search coil SEF 12"x10" of Teknetics T2.Regards!

[eduardo1979]

http://www.youtube.com/watch?v=1VqA4mbakIU

[eduardo1979]

http://img714.imageshack.us/i/x71.mp4/

[gurdal]

http://img714.imageshack.us/i/x71.mp4/

Air test:1€ coin 55cm whith search coil SEF 12"x10" of Teknetics T2.Regards!

eduardo1979 very nice work

[ispanyol2]

eduardo1979 You can make it coil properties.

regards

[eduardo1979]

SEF 12 "x10" de Teknetics T2

[eduardo1979]

http://www.geotech1.com/forums/showt...t=teknetics+t2

[ispanyol2]

hi eduardo1979

did you give the link you were inDid he the circuit. tgsl from this circuit and I'm fine.
thank you

regards

[verotopasera]

scheme

hi eduardo1979

[verotopasera]

hi eduardo1979 you can publish the scheme S.M.W.555

[verotopasera]

http://dox.bg/files/dw?a=b8f0f289c9

[eduardo1979]

Here is everything. On the PCB I made some changes that do not match the schema, because I used another coil. The coil I used is 12x10 SEF for Teknetics T2. Greetings!

[verotopasera]

What is the difference between the two boards that I made this 18V is able to correct it and what are the windings of the antenna

[eduardo1979]

There is no difference. The PCB can be powered both with 2x9V 18V or 12V with 8 AA batteries of 1.5 V. The coil is, I repeat to Teknetics T2, SEF Butterfly 12x10.No there's more.

[verotopasera]

except Teknetics T2 SEF Butterfly 12x10 had a suitable antenna to work or to design one with these parameters have somewhere a description of this description will work
The data for the coils DD 27-28:
TX - 75 windings, 0.45mm wire, diameter 200mm.
RX - 160 windings, 0.27mm wire, diameter 200mm.