TGSL-VLF ///just ask!

[وليد العيسى]

it's that making by Ivconics, C1=220000PF,C2=22000PF,C6=0.015UF,L1=6mH.L2=6.5mH

and someone ask me if he can use J108 TRA(TR4,TR5) instead J107 because he cannot found it?.

[$hooter]

Hi everyone
really guys this's also my problem can i use J108 FET instead J107 FET (TR4,TR5) i use Ivconics schematic,and plz take a look on the photo ,no problem with this battery?


max current 0.3A

[ivconic]

Hi everyone
really guys this's also my problem can i use J108 FET instead J107 FET (TR4,TR5) i use Ivconics schematic,and plz take a look on the photo ,no problem with this battery?


max current 0.3A

Battery is fine. No problem.
I guess you can use J108 because it is having simple role there. If you can; obtain BF245 and use it too.
Cheers!

[$hooter]

ty ivconic,i will use it, it's only i found.

regards

[TwaGleeSd]

Hi all
i really confused,first i work on ivconics schematic (version jan/2012) the problem is with the capacitors (C1,C8,C12,C15) is equal: 0.22F or 0.22uF or 220000PF ? and the same with (C2,C13,C16,C20,C23,C24,C25) is = 0.022F or 0.022uF or 22000PF ? this's only what i need

[ivconic]

Hi all
i really confused,first i work on ivconics schematic (version jan/2012) the problem is with the capacitors (C1,C8,C12,C15) is equal: 0.22F or 0.22uF or 220000PF ? and the same with (C2,C13,C16,C20,C23,C24,C25) is = 0.022F or 0.022uF or 22000PF ? this's only what i need

On which page is that schematic?

[TwaGleeSd]

this's the schematic and see the capacitors which I talked about

[ivconic]

C2=22nF
C13=22nF=.022=0.022(uF)=223 (22 + 3 zeros = 22 000nF)
C16=22nF
C20=22nF
C23=22nF
C24=22nF
C25=22nF

C1=220 nF = .22 or 0.22 or 224 (22 + 4 zeros = 22 0000nF)
C8=220nF
C12=220nF
C15=220nF

...
etc...etc...etc...
...
10nF=.01=0.01(uF)=103 (10 + 3 zeros = 10 000nF)
...
...
etc...etc...etc...

[$hooter]

Hi again

now i have finished from building the TGSL board ,search coil not yet,but before continue building i want to know that i don't have any mistake in the board how to know,mean witch pins must check and what the voltage must be on those pins,i have only multimeter this work.

[$hooter]

anybody.....

[galal]

Hi all
just i need one thing,that i want to know how to calculate inductance for a coil specially the coil in the fig,what is the equation for that,plz guys i need help

[Jerry]

Hi all
just i need one thing,that i want to know how to calculate inductance for a coil specially the coil in the fig,what is the equation for that,plz guys i need help

Here is the link for coil calculator: http://www.geotech1.com/forums/showthread.php?t=17909

You might also want to read the complete details which you will find here: http://www.geotech1.com/forums/showthread.php?t=15710

Jerry

[satdaveuk]

Hi Galal
Its a must that you read the link to the threads that Jerry posted back to front, if you intend to make a success of this project, in other words help yourself then others will help you when needed, The thing that none of us like doing here is repeating the same old questions to the same old answers time and time again thats already repeated god knows how many times within the construction details.
The details and most questions that arise are all within the thread so you need to marry them both up to work alongside each other.
You need to do your home work then commence construction, not the other way round.
Im telling you this in a nice helpful educational way for you to gain knowledge .

Wish you success

Regards

[ivconic]

...

[galal]

thank you guys a lot,but before to read everything related to the inductance in that link that jerry typed it;take a look on the coil below,also this shape of coil existent in that link too,pls can you give an equation for inductance for this coil,i can't measure it with a device because it's expensive and i don't have a money, i spent my money on parts of TGSL,and don't know anyone have it,so i want to calculate it mathematically.can you help me