[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
News:
Pages:  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 ... 91   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 Eugene52Topic starter
M.D. Electronic Builders Club
Moderator
Gold Member
*****

Mood:Happy
Happy

M.D. Electronic Builders Club
Join Date: Dec, 2008
Thank you397

Activity
0%
Male
United States
Posts: 2630
Referrals: 0

17957.00 Gold
View Inventory

Awards

Teknetics , Fisher , Discovery3300 and TIANXUN 19 kHz VLF Metal Detector
« Reply #80 on: November 09, 2009, 02:09:54 pm »
Go Up Go Down

Here is my parts list for Delta Pulse .
Only resistors R23,24,25,26 must be 1% precision or even better use 0.1% for these 4 resistors only , if you have them available .
Here is my parts list in a text document for easy download.
HH.........Eugene


Next questions will be answered soon about single sided PCB circuit board , coil data , part substitutions , battery types , u.a. panel meter .

Linkback:

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

http://www.thunting.com/smf/index.php/topic,28024.msg198549.html#msg198549



There are 1 attachment(s) in this post which you can not view or download

Please register for viewing them.

Delta Pulse pats list updated 11-08-09.txt


« Last Edit: December 31, 1969, 06:00:00 pm by Eugene52 »
Logged

Let's Talk Treasure right here on Thunting.com

Offline hesamavr
Copper Member
*

Join Date: Aug, 2009
Thank you10

Activity
0%

Iran, Islamic Republic of
Posts: 56
Referrals: 0

310.00 Gold
View Inventory

Awards
« Reply #81 on: November 09, 2009, 02:23:56 pm »
Go Up Go Down

Quote:Posted by Eugene52
Here is my parts list for Delta Pulse .
Only resistors R23,24,25,26 must be 1% precision or even better use 0.1% for these 4 resistors only , if you have them available .
Here is my parts list in a text document for easy download.
HH.........Eugene


Dear Eugene
Thanks for your helps.
I want to choose all resistors with 1% precision and for those specific resistors with 0.1% precision. also I want to choose nF and pF range capacitors Polyester or Multilayer and other ones with high quality. I believe that it will increase the sensitivity and stability of circuit. what's your idea ?
Thanks a lot, Hesam

Linkback:

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

http://www.thunting.com/smf/index.php/topic,28024.msg198550.html#msg198550




Logged
Offline Eugene52Topic starter
M.D. Electronic Builders Club
Moderator
Gold Member
*****

Mood:Happy
Happy

M.D. Electronic Builders Club
Join Date: Dec, 2008
Thank you397

Activity
0%
Male
United States
Posts: 2630
Referrals: 0

17957.00 Gold
View Inventory

Awards

Teknetics , Fisher , Discovery3300 and TIANXUN 19 kHz VLF Metal Detector
« Reply #82 on: November 09, 2009, 10:38:25 pm »
Go Up Go Down

Quote:Posted by hesamavr
Dear Eugene
Thanks for your helps.
I want to choose all resistors with 1% precision and for those specific resistors with 0.1% precision. also I want to choose nF and pF range capacitors Polyester or Multilayer and other ones with high quality. I believe that it will increase the sensitivity and stability of circuit. what's your idea ?
Thanks a lot, Hesam


Hello again . Your ideas are correct  . Use polyester film capacitors @100 volt rating and 5% tolerance . Then use 1/4 watt metal film resistors and 1% tolerance . Like the 2 photos below .
HH.............Eugene

Linkback:

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

http://www.thunting.com/smf/index.php/topic,28024.msg198551.html#msg198551



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

Please register for viewing them.

1% tolerance metal film 0.25 watt.jpg
polyester film capacitor 5%.jpg


Logged

Let's Talk Treasure right here on Thunting.com

Offline apocalypto
Copper Member
*

Join Date: Oct, 2009
Thank you3

Activity
0%

France
Posts: 42
Referrals: 0

305.00 Gold
View Inventory

Awards
« Reply #83 on: November 10, 2009, 01:16:51 am »
Go Up Go Down

Very nice work Eugen  Clapp, We waiting for the rest of work

hi....... Apocalypto.

Linkback:

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

http://www.thunting.com/smf/index.php/topic,28024.msg198552.html#msg198552




Logged
Offline raya
Pull Tab
*

Join Date: Mar, 2009
Thank you0

Activity
0%

Lebanon
Posts: 5
Referrals: 0

30.00 Gold
View Inventory

Awards
« Reply #84 on: November 10, 2009, 07:48:14 am »
Go Up Go Down

hello
i am using in my Delta 2N3904 not 2N3094 and 2N3906 not 2N3096 best result with 2sc1815(npn) and 2sa1015(pnp) see the order of pins EBC  Smiley

Linkback:

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

http://www.thunting.com/smf/index.php/topic,28024.msg198553.html#msg198553




Logged
Offline Eugene52Topic starter
M.D. Electronic Builders Club
Moderator
Gold Member
*****

Mood:Happy
Happy

M.D. Electronic Builders Club
Join Date: Dec, 2008
Thank you397

Activity
0%
Male
United States
Posts: 2630
Referrals: 0

17957.00 Gold
View Inventory

Awards

Teknetics , Fisher , Discovery3300 and TIANXUN 19 kHz VLF Metal Detector
« Reply #85 on: November 10, 2009, 11:25:28 am »
Go Up Go Down

Quote:Posted by raya
hello
i am using in my Delta 2N3904 not 2N3094 and 2N3906 not 2N3096 best result with 2sc1815(npn) and 2sa1015(pnp) see the order of pins EBC  Smiley


Another good choice !!! The Delta Pulse works the best with the "BC" or "2S" type tansistors , the 2N3904 and 2N3906 do not work good in this circuit . Last night I tried to load the PCB files and had some problems . My computer and internet are fast but this Forum has been very slow the last few days it takes over 10 seconds to load a page and I can not attach files , this is the first time in almost a year it has done that . I think it is the forum server , I pm-d the administrator "Chistian" . Anyway back to the topic :
Here are the two correct single sided PCB file attachments . I corrected the trace of the diode error on the image. As you can see the 6 potentiometers are PCB mounted and their resistances are labeled . Remember , always verify parts placement with the schematic [version 6] I just posted a few days ago .
HH.........Eugene
Quote:Posted by apocalypto
Very nice work Eugen  Clapp, We waiting for the rest of work

hi....... Apocalypto.


Hello Apocalypto . Sorry it took me a few extra days longer to answer you , but this forum has some technical problems that keep me from uploading files and attachments .
Eugene
  Great
I guess the Forum wants me to answer all questions and put all attachments and information on one post to get everyone confused !! Instead of a logical and easy "Step by Step" , one at a time process . And to max out the 1 megabyte file limit per post !!!  Club  Idea Idiot
The original search coil for the Delta Pulse was a 1.1 by 1.1 meter coil it had 16 turns of wire . The next size was a 60 cm round coil - around 25 turns of 0.5 mm wire . And last a 42 cm coil with 29 turns of 0.5 mm wire which measures 3.4 to 3.9 ohms dc resistance . Always Remember to measure and keep the coils DC resistance 3 to 4 ohms or greater if possible or else you will burn out T1 IRF740 or IRF840 . You can add a small resistor in series with the coil but if you want to change different coils in the field you may have to take out the little resistor . It is easier just to wind each size search coil to the proper specs and do not mess around with the little series resistor .
HH................Eugene


Everything you need is here NOW ,  to perfectly complete the Delta Pulse  !!!!! I am now working on something else !!!!
Best Regards to Everyone..........Eugene

Linkback:

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

http://www.thunting.com/smf/index.php/topic,28024.msg198554.html#msg198554



There are 1 attachment(s) in this post which you can not view or download

Please register for viewing them.

alt_yol.pdf


Logged

Let's Talk Treasure right here on Thunting.com

Offline apocalypto
Copper Member
*

Join Date: Oct, 2009
Thank you3

Activity
0%

France
Posts: 42
Referrals: 0

305.00 Gold
View Inventory

Awards
« Reply #86 on: November 12, 2009, 12:34:28 am »
Go Up Go Down

Hi Eugen,

I have some remarks :

- I can see C30 (4700uF), C31 (4700uF), C32 (4700uF) and ST TH1210D in the pcb (with components) that you attached last night.

I can see SB2 [Auto / Manual] in the pcb (with components) that you attached last night  (Look to attachement).

- In the shematic that you post a few days ago there are R50=10 k and R51= 1R and i can see him in the pcb (with components) that you post last night.

Please to verify Eugen
thank you for your help.
Eugen, please to correct the PCB and to post a complete project, take the time that you should, but we need a complete and correct documentation
HH..........Apocalypto

Linkback:

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

http://www.thunting.com/smf/index.php/topic,28024.msg198555.html#msg198555




Logged
Offline xeronium
Pull Tab
*

Join Date: Oct, 2009
Thank you3

Activity
0%

South Africa
Posts: 19
Referrals: 0

50.00 Gold
View Inventory

Awards
« Reply #87 on: November 19, 2009, 04:31:42 am »
Go Up Go Down

Just a question to anyone who knows, regarding the taper of the pots, are they linear or log.  (I assume linear) Thanks.

Linkback:

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

http://www.thunting.com/smf/index.php/topic,28024.msg198556.html#msg198556




Logged
Offline goldigger
Silver Member
*

Join Date: Jun, 2009
Thank you4

Activity
0%
Male
Canada
Posts: 1125
Referrals: 0

5400.00 Gold
View Inventory

Awards

Bounty  Hunter and several more.
« Reply #88 on: November 19, 2009, 05:51:54 am »
Go Up Go Down

Quote:Posted by xeronium
Just a question to anyone who knows, regarding the taper of the pots, are they linear or log.  (I assume linear) Thanks.


They SHOULD be linear, but if you cannot get linear? Log would have to do.  Shocked

It depends how desperate you are!

goldigger

Linkback:

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

http://www.thunting.com/smf/index.php/topic,28024.msg198557.html#msg198557




Logged

goldigger

Offline ali4257
Foil
*

Join Date: Oct, 2009
Thank you0

Activity
0%

Iran, Islamic Republic of
Posts: 4
Referrals: 0

20.00 Gold
View Inventory

Awards

PI
« Reply #89 on: November 20, 2009, 09:47:48 am »
Go Up Go Down

which make pcb very well Huh? 

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

http://uploading.com/files/c96f6728/pcb.rar/

 
 iam not full speak english

Linkback:

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

http://www.thunting.com/smf/index.php/topic,28024.msg198558.html#msg198558




Logged
Print
Pages:  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 ... 91   Go Up
Jump to:  

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