[x] Welcome at THunting.com!

A fun place to talk about Metal Detecting, Treasure Hunting & Prospecting. Here you can share finds and experience with thousands of members from all over the world

Join us and Register Now - Its FREE & EASY

THunting.com
Treasure Hunting & Metal Detecting Community
   
Advanced Search
*
Welcome, Guest! Please login or register HERE - It is FREE and easy.
Only registered users can post and view images on our message boards.
Did you miss your activation email?

Login with email, password and session length
Or Login Using Social Network Account
2
News:
Pages:  1 ... 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 ... 89   Go Down
Print
Share this topic on FacebookShare this topic on Del.icio.usShare this topic on DiggShare this topic on RedditShare this topic on Twitter
Tags:
0 Members and 1 Guest are viewing this topic.
Offline xavier
Moderator
Platin Member
*****

From a rainy Brussels
Join Date: May, 2009
Thank you166

Activity
0%
Male
Belgium
Posts: 7339
Referrals: 0

32206.00 Gold
View Inventory

Awards
« Reply #580 on: April 08, 2011, 10:02:00 am »
Go Up Go Down
24 AWG = 0.511 mm, resistance = 84.22 Ohm's per Km, 16 turns = 64m, resistance = 5.39 R I'm working on a calculator that will give an estimate of the inductance and I don't have a 1m x 1m coil so I cant give you the inductance at the moment all that I can tell you is that 5.39 R looks a bit high but you don't kneed a fast coil for large objects so this one should work fine.

Regards Xavier 

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,2887.msg161528.html#msg161528


Xavier

Logged
So many questions so little time
Offline fixxx
Copper Member
*

Join Date: Nov, 2010
Thank you1

Activity
0%

Serbia and Montenegro
Posts: 26
Referrals: 0

200.00 Gold
View Inventory

Awards
« Reply #581 on: April 08, 2011, 10:09:04 am »
Go Up Go Down
Thank you all !!!
I will get some experiments these days,and post the results.
fixxx

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,2887.msg161533.html#msg161533

Logged
Offline lazo
Copper Member
*

Join Date: Mar, 2010
Thank you15

Activity
0%

Turkey
Posts: 41
Referrals: 0

316.00 Gold
View Inventory

Awards

garett ace 250
« Reply #582 on: April 09, 2011, 09:07:35 am »
Go Up Go Down
Are there other substitutes for the LF357 in Delta Pulse / Sniffer ?
Thank you.

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,2887.msg161730.html#msg161730

Logged
Offline xavier
Moderator
Platin Member
*****

From a rainy Brussels
Join Date: May, 2009
Thank you166

Activity
0%
Male
Belgium
Posts: 7339
Referrals: 0

32206.00 Gold
View Inventory

Awards
« Reply #583 on: April 09, 2011, 09:24:48 am »
Go Up Go Down
I have been told that there was but I have not found one yet that works like the LF357 remember that it has been discontinued so finding them can be a bit of a pain.

Regards xavier

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,2887.msg161732.html#msg161732


Xavier

Logged
So many questions so little time
Offline fixxx
Copper Member
*

Join Date: Nov, 2010
Thank you1

Activity
0%

Serbia and Montenegro
Posts: 26
Referrals: 0

200.00 Gold
View Inventory

Awards
« Reply #584 on: April 09, 2011, 10:20:43 am »
Go Up Go Down
Yes,it's hard to find LF 357,i ordering these from Slovenia(i am from Serbia).
Regards...........fixxx

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,2887.msg161741.html#msg161741

Logged
Offline xavier
Moderator
Platin Member
*****

From a rainy Brussels
Join Date: May, 2009
Thank you166

Activity
0%
Male
Belgium
Posts: 7339
Referrals: 0

32206.00 Gold
View Inventory

Awards
« Reply #585 on: April 09, 2011, 11:22:20 am »
Go Up Go Down
The thing is the 50V/us slew-rate but you could try the NE5534 and LM318 so I've been told.

Regards Xavier

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,2887.msg161756.html#msg161756


Xavier

Logged
So many questions so little time
Offline fixxx
Copper Member
*

Join Date: Nov, 2010
Thank you1

Activity
0%

Serbia and Montenegro
Posts: 26
Referrals: 0

200.00 Gold
View Inventory

Awards
« Reply #586 on: April 09, 2011, 12:17:53 pm »
Go Up Go Down
A little work on the big coil..... Smiley

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,2887.msg161773.html#msg161773


There are 2 attachment(s) in this post which you can not view or download

Please register for viewing them.

IMG_0109.jpg
IMG_0111.jpg

Logged
Offline japanese
Bronze Member
*

Join Date: Mar, 2010
Thank you55

Activity
0%

Egypt
Posts: 287
Referrals: 0

1625.00 Gold
View Inventory

Awards

GARY PI
« Reply #587 on: April 09, 2011, 12:29:56 pm »
Go Up Go Down
Hi  lazo,fixxx
   LF357 can replaced=LF356,tl071,NE5534

best time
j.

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,2887.msg161774.html#msg161774

Logged
Offline raff33
Copper Member
*

Join Date: Jan, 2009
Thank you1

Activity
0%

Morocco
Posts: 67
Referrals: 0

390.00 Gold
View Inventory

Awards
« Reply #588 on: April 11, 2011, 04:11:13 am »
Go Up Go Down
Hi,
for me TL071 give the same result az LF357

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,2887.msg162093.html#msg162093

Logged
Offline satdave
Barracuda-DFX-QUATTRO-1V- VLR 990D-TGSL X2-1265X-IGSL-Mini pulse 3
Copper Member
*

Barracuda-DFX-QUATTRO-1V- VLR 990D-TGSL X2-1265X-IGSL-Mini pulse 3
Join Date: Oct, 2010
Thank you13

Activity
0%
Male
United Kingdom
Posts: 92
Referrals: 0

515.00 Gold
View Inventory

Awards
« Reply #589 on: May 02, 2011, 07:07:01 pm »
Go Up Go Down
Quote:Posted by Logenxxx
Hello to all!
Hi noticed you used single sided pcb, was that taken from the final pcb layout plus circuit put on here?
Because if so i will start mine

Many thanks

I am submitting here my finished project and it works pretty good. I make a simple temporary 6" search coil and can detect a single coin at 8" deep.

Thanks a lot to Eugene for sharing his time and talents.
More power to you and to thunting.com

Logenxxx


Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,2887.msg167916.html#msg167916


satdaveuk

Logged
Satdaveuk
Print
Pages:  1 ... 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 ... 89   Go Up
Jump to:  

Powered by SMF 1.1.19 | SMF © 2005, Simple Machines | Sitemap
Copyright THunting.com