Zahori

[Geo]

Is there anyone that can help with my questions made on my message below this one?
Regards
Nelson

What are you mean???
Your schematic writes it

Regards

[nelson]

Hi Geo, i need to know where legs of 2N3819 are conected. For me is just like i have marqued on the picture below with a red circle.
Also what sounds should i spect from zahorie. I m using a piezzo for sound
In advance many thanks.
Nelson

What are you mean???
Your schematic writes it

Regards

[Geo]

Hi Geo, i need to know where legs of 2N3819 are conected. For me is just like i have marqued on the picture below with a red circle.
Also what sounds should i spect from zahorie. I m using a piezzo for sound
In advance many thanks.
Nelson

Hi. Connect the 2N3819 as the schematic. If you don't know who is the sourse or the gate etc... look fot datasheet.
At the output you must connect a speaker.

Regards

[nelson]

Ok Geo and thanks
I have connected has show on the picture (red circle) of my previus message, but sounds still like 50 or 60 hz energy
Regards
Nelson

Hi. Connect the 2N3819 as the schematic. If you don't know who is the sourse or the gate etc... look fot datasheet.
At the output you must connect a speaker.

Regards

[Morgan]

zahori

Hi Geo, i need to know where legs of 2N3819 are conected. For me is just like i have marqued on the picture below with a red circle.
Also what sounds should i spect from zahorie. I m using a piezzo for sound
In advance many thanks.
Nelson

You can try also with headphones,go near your TV screen,it must sounds 3 or 4 meters.

[Morgan]

zahori

Ok Geo and thanks
I have connected has show on the picture (red circle) of my previus message, but sounds still like 50 or 60 hz energy
Regards
Nelson

Hello Nelson

If you not get any sounds ,disconnect your antenna and connect to the transistor Gate,one single turn loop ,wire 1,5 or 2 mm,15 cm diameter. If with this not work,your circuit is not correct.Use with headphones.

Regards

[Morgan]

zahori

Ok Geo and thanks
I have connected has show on the picture (red circle) of my previus message, but sounds still like 50 or 60 hz energy
Regards
Nelson

NOT USE PLASTIC BOX,it will overload the circuit with STATIC ENERGY.

[g-sani]

You can try also with headphones,go near your TV screen,it must sounds 3 or 4 meters.

Hi Morgan, mine beeps at about 2m from the tv screen but I didn't put it in a box yet.
Antenna is builded as you proposed.
Somebody told me that if you want to check it properly using a tv set you have to switch the tv on and then off and try to test it afterwards(whith the tv switched off).
Is that so?

[Qiaozhi]

Hi Morgan, mine beeps at about 2m from the tv screen but I didn't put it in a box yet.
Antenna is builded as you proposed.
Somebody told me that if you want to check it properly using a tv set you have to switch the tv on and then off and try to test it afterwards(whith the tv switched off).
Is that so?

I think it needs to be a TV with a CRT, not an LCD display. The Zahori can pick up the signal from the EHT.

[g-sani]

Of course it has to be a CRT. But do you test just after switching off Qiaozhi?

[WM6]

Of course it has to be a CRT. But do you test just after switching off Qiaozhi?

If you mean switching off CRT TV then "switch off" mean nothing. Residual static voltage of CRT can be prolonged for hours. If you open TV and try to touch CRT shielding with your finger after "switch off" you can sense this voltage way better than your Zahori (almost unforgetable).

[Qiaozhi]

If you open TV and try to touch CRT shielding with your finger after "switch off" you can sense this voltage way better than your Zahori (almost unforgetable).

[nelson]

Hi Morgan and all friends from the forum.
Whell, yes my zahorie, without the box, can hear the noise from my tv from about 2 meters.
Tomorrow i will place the hole circuit on a wood box. Then after that i will take a video to show you on youtube.
I still don´t know what are the setting for the 3 variable resistors and also what sound should i expect from zahori.
I belive that when you get close to a 220 volts AC , 50 hz, is normal to hear a current noise coming from the buzzer.
So if anyone has more practice and expirencies with it, let me know what should i look to know if this is working or not.
The circuit was checked 3 times and looks fine.
I hope someone can help me to understand this, that looks very nice project to try and experiment.
Regards
Nelson

You can try also with headphones,go near your TV screen,it must sounds 3 or 4 meters.

[Morgan]

zahori

Hi Morgan, mine beeps at about 2m from the tv screen but I didn't put it in a box yet.
Antenna is builded as you proposed.
Somebody told me that if you want to check it properly using a tv set you have to switch the tv on and then off and try to test it afterwards(whith the tv switched off).
Is that so?

Well,this depends on TV size,i have one big TV,and for test the Zahori your television must be ON.

[Morgan]

zahori

Hi Morgan and all friends from the forum.
Whell, yes my zahorie, without the box, can hear the noise from my tv from about 2 meters.
Tomorrow i will place the hole circuit on a wood box. Then after that i will take a video to show you on youtube.
I still don´t know what are the setting for the 3 variable resistors and also what sound should i expect from zahori.
I belive that when you get close to a 220 volts AC , 50 hz, is normal to hear a current noise coming from the buzzer.
So if anyone has more practice and expirencies with it, let me know what should i look to know if this is working or not.
The circuit was checked 3 times and looks fine.
I hope someone can help me to understand this, that looks very nice project to try and experiment.
Regards
Nelson

Yes,nice and cheap project,this save your wallet from expensive MINEORO and other LRL´s in the market. Results will be the same(or better) and you save you money.

Happy hunting