TESORO GOLDEN SABRE

[waltr]

Hello Walt!!
I used this American coin.

I am going to get myself a multi-turn potentiometer for the GB, I notice that it is necessary to be able to regulate it with more precision.

Thank you very much for your advice!!!

Yes, that US 1 cent is copper.

Where is from my friend?

Please would both of you add at least which country you are in to your Profile.

[Ruben2000]

Yes, that US 1 cent is copper.



Please would both of you add at least which country you are in to your Profile.

Ok, amigo!!

[mostafalesnar91]

Yes, that US 1 cent is copper.



Please would both of you add at least which country you are in to your Profile.

How do I install this bf245c on this circuit? I do not trust the datasheet and it is very difficult to detect the gate, source and drain with a multimeter

[mostafalesnar91]

[mostafalesnar91]

SGD or GSD ?????????

[waltr]

How do I install this bf245c on this circuit? I do not trust the datasheet and it is very difficult to detect the gate, source and drain with a multimeter
[ATTACH]57102[/ATTACH]
[ATTACH]57103[/ATTACH]

I would trust the data sheet and give it a try.
DS shows pin order as GSD in the orientation of the JFET in your picture.

Other way is to actively test. Look up "Testing N-ch JFET" on the web for how to do this.

[mostafalesnar91]

I would trust the data sheet and give it a try.
DS shows pin order as GSD in the orientation of the JFET in your picture.

Other way is to actively test. Look up "Testing N-ch JFET" on the web for how to do this.

Okay! It is really difficult for an electronic engineer to have trouble recognizing MOSFET bases, I am a self-taught person !!
But I already installed one of these bf245c in the original TGSL, so GSD is right !!
Now I installed it in TGSL Edu like this, I think that's right !!
Do you confirm this ???

[mostafalesnar91]

I'm sorry I can't upload pic

[mostafalesnar91]

Does anyone see anything wrong ??

[ATTACH]57046[/ATTACH]
[ATTACH]57047[/ATTACH]

I installed like this!!
that's right?

[Carl-NC]

If you now know that the pin order is GSD then the schematic of the TGSL will tell you how to install it.

[Ruben2000]

You should install BF245A or BF245B.

I install 2N4393.

[mostafalesnar91]

thanks

[mostafalesnar91]

my tgsl edu air test!!
with weak results
maybe I didn't adjust the device properly or my loop didn't null properly!!!
how do I measure frequency???https://m.youtube.com/watch?v=3axhGgCzqVE

[ArchibaldSTM]

You are swinging objects incorrectly. Watch other videos on YouTube on how to do hand movements correctly.

[mostafalesnar91]

You are swinging objects incorrectly. Watch other videos on YouTube on how to do hand movements correctly.

no difference!!!!