Andy Flind MFD.

[Geo]

Decrease a litle the sensitivvity and you are OK.
Good T.H....

[WM6]

Originally Posted by Geo

Are you OK????

I am hanging in, Geo. Thanks for asking.
Except prolonged winter temperatures here, that make no joy to be outside on TH adventure,
to this day still without fashionable viruses myself, but country go more and more crazy with
all this lock-downs.

I believe in Greece spring is in full bloom, as well as your distant locator development and TH.
Wish you great finds in all fields of life. I am following your interesting LRL post here.

Stay healthy.

[abdou2014]

Originally Posted by Geo

Decrease a litle the sensitivvity and you are OK.
Good T.H....

Thank you

[Zicos]

Happy new year, health to all. I have built the Andy flind 1 and when it comes into operation the first (1) led and the last (10) led light up, the rest of the leds (2/3/4/5/6/7/8/9) are off. and the buzzer works non-stop pot.1 does not change anything nor does pot.2 do anything.what's wrong;;;

[Pahom]

Originally Posted by Zicos

Happy new year, health to all. I have built the Andy flind 1 and when it comes into operation the first (1) led and the last (10) led light up, the rest of the leds (2/3/4/5/6/7/8/9) are off. and the buzzer works non-stop pot.1 does not change anything nor does pot.2 do anything.what's wrong;;;

It shouldn?t be like this, check the soldering, there may be a short circuit somewhere, and wash the board of flux.

[Zicos]

hello my friend PAHOM. i checked it many times and i don't understand what i have done wrong. the problem is in 3915 in its connection or 358 in its output. pot.1 (vr1) what voltage should it have at the end???? does the 3915 connect as it is on the drawing??? or does it have another connection??? I can not understand...

[Geo]

Check the voltage on midle pin of potentiometers, it must be between 0v and +5V. If i remember ok near to 0V it don't beeps.

[Zicos]

the volts on vr1 and vr2 are 0-5volt.vr2 lowers the buzzer. in vr1 the LEDs do not change,,,the first led and the last led light up continuously.

[Geo]

If u deconect the coil then the first led and the last led light up continuously???
Also do u use a preamplifier???

[Zicos]

https://youtube.com/@zicos-jb3fv?si=6G1Y_b1bSqH-4QQ0

[Zicos]

i don't use coil yet because it doesn't work properly.

[Geo]

As i saw the video it works properly except leds. So check all around 3915. If will not find any problem then replace IC. Schematic is corect...

[Zicos]

thank you very much.and Pahom in a private message told me the same.in 3915 i made a vu meter circuit and it doesn't work.

[Geo]

U can attach here the schematic of Andy to see if there is any error.

[Zicos]

I don't have a schematic. i did it on punched board.

[abdou2014]

[abdou2014]

[Zicos]

thank you very much Abdou 2014 for the schematics But I don't have the means to make them. as I have it on the punched board will it work or do I have to make a board????

[abdou2014]

a printed circuit is better, less interference

[Zicos]

hello my friends. i have a copper pot (bagratsi) buried at 0.50 meters depth, almost 9 months if i remember correctly. is there a creation phenomenon,???? and the Andy circuit will show it???? also I made the circle from silver wire 925 (0.9mm) circle diameter 14 cm. I have it buried 0.40 meters along with salt for 2 weeks do you ever think it will have a phenomenon?????

[Zicos]

sorry when will he have fenomeno????

[Geo]

"Phainomenon" needs many years for be creatings.
Other conditions maybe create some detecting conditiond.
One example is the creating of secondary magnetic field by the buried object if there is a strong underground signal.
But the basic is other.... enjoy your hobby, all the rest comes second

[Zicos]

good evening.without phenomenon i can't test if something works or not. that's why i asked.

[Geo]

Haha... most members has the same problem...

[Zicos]

it's the pot. this ;;;;