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#326
02-25-2011, 12:55 AM
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LOOP L1
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L1 is single turn loop,and the wire who comes from 2N3819 make some turns direct in the gold sample and finaly connect to L1. The sound like MINEORO is made by special BUZZER,but for test the zahori you can use headphones. 
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#327
02-25-2011, 02:15 AM
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Hi Morgan
Today i finish my antenna and use a gold ring that i found on my trips for treasure hunting Here are pictures that i got from my antenna. Now, when i connect zahori to 9 volts battery, my buzzer makes some noises like AC current. Inded i conected my oscilloscope to G leg of 2n3819, and the sound stopped, but i notice that my osciloscope shows a 50 hz frequency, that seems for me that zahorie is getting AC current from my house. So, could you tell me what sound looks like and if my 2n3819 is connected correct has i show you on the schematics? What other test i can do with my oscilloscope. By the way my zahorie is not mounted on a wood box jet. Also what settings should i get with pots? What do you mean with special buzzer? What kind shoul i use? In advance many thanks Regards Nelson Quote:
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#328
02-28-2011, 03:57 AM
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zahori
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I go to put photos of my zahori,and you will see how it works. This wire around the ring seems very big,but maybe work... When you switch ON your zahori,you must do this not near electrical instruments or ligths.
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#329
02-28-2011, 07:04 PM
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Ok Morgan and thanks.
Can you show me where D, G, S legs of 2N3819connect to, please? I use 1.6 mm enameled wire around the ring and also to build both coils L1 and L2. Just one turn for coils and 10 turns around the ring. I moved my zahori away from any electrical devices, but it stays with no sound at all. Can you tell me how to know if it realy working? Best regards Nelson Quote:
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#330
03-02-2011, 05:56 PM
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Is there anyone that can help with my questions made on my message below this one?
Regards Nelson Quote:
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#332
03-02-2011, 07:13 PM
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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 Quote:
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#333
03-02-2011, 11:06 PM
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Quote:
At the output you must connect a speaker. Regards 
__________________
Geo
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#334
03-03-2011, 08:24 PM
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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 Quote:
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#335
03-04-2011, 12:42 AM
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zahori
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#336
03-04-2011, 12:47 AM
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zahori
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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
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#337
03-04-2011, 12:50 AM
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zahori
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NOT USE PLASTIC BOX,it will overload the circuit with STATIC ENERGY.
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#338
03-04-2011, 08:20 AM
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Quote:
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?
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#339
03-04-2011, 09:02 AM
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#341
03-04-2011, 12:34 PM
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Quote:
__________________
Global capital is ruining your life? You have right to self-defence!
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#343
03-04-2011, 02:28 PM
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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 Quote:
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#344
03-04-2011, 03:36 PM
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zahori
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Well,this depends on TV size,i have one big TV,and for test the Zahori your television must be ON.
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#345
03-04-2011, 03:48 PM
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zahori
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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
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#346
03-04-2011, 04:40 PM
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OK Morgan, but what about the kind of sound and how to set up the 3 potenciometers?
Regards? Nelson Quote:
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#347
03-04-2011, 08:52 PM
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zahori
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R9 midle pot. R8,R10 play with them near TV until get the best distance. Not forget my Zahori was connected to BFO,was diferent from your
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#348
03-05-2011, 06:16 PM
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Ok Morgan, son can you show me how to add the BFO and i assume that the BFO allow you to tune the detector on some frequency spectrum?
Thanks for the pictures and , don´t forget to tell me if the 2N3819 legs are connected corect has is show on my previus pictures. Take care and have a nice day Morgan Best regards Nelson Quote:
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#350
03-06-2011, 07:33 PM
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zahori
Quote:
No need to adapt the BFO,it make the Zahori more complicated. The pins are correct in your PCB.
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Linear Mode
