northwest coils ain't coils
Welcome, Guest. Please login or register.
Monday August 21 2017 10:39:28 AEST AM
Home Help Login Register
News: Welcome to the Australianelectronicgoldprospectingforum founded in July 2010, an add free totally independent forum with over 70 boards and paid for and managed by the Admin.Total forum Topics:8,771 Total forum Posts:41,900 Members:683 Total page views:8,708,075 Admin and  forum and domain name owner :marjen at optusnet.com.au. Guests can only see a limited number of boards at present and cannot see any links. Guest cannot post and never will be permitted too!Registration of new members must be approved by admin.Anyone known to have any past or present association with Codan/ML or acting on their behalf as a proxy or intermediary  will not have their registration approved. All  original Photos and posts and  original materials displayed on this site are COPYRIGHTED and remain the property of the poster and the  Austalian electronicgoldprospectingforum.com. All messages on this forum express the personal views of the author and should not be interpreted as necessarily being in accord with those of the forum owner and neither the owner of this forum and its domain name nor SMF or the forum software developers or the forum host shall be held responsible for the content of any message. Admin reserves the right to remove any offensive or objectionable posts. No defamatory material or politics/religion or issues of race will be permitted.

Some software and hardware updates now available for the QED.More  QED firmware updates (inc Auto GB  option) just announced here. New  QED hardware updates/options and pictures will be posted  first here  as they become available.

Another satisfied QED user! QED user report for 9 days detecting! User loves it, found it easy to use,found gold with it and he prefers it to his 5000! Also a report on a QED used at the beach for coin shooting.QED users reporting in with their multi ounce gold finds with the QED!
From  another QED user today:"Been out and about today testing and comparing against other machines etc in ground that has been horrible in the past.Bround balancing Ive found very simple and easy.'m using the Nokia booster but need a little more sound/threshold.Otherwise no complaints from me, very impressed."
and :"My QED with the 8” commander on it, out performed my SDC Got bits that don't register on my scales SDC has since been sold"
"My QED is terrific. Lightweight, very sensitive and screams at me when it hits any target. The Detect shaft and the 11" ultra sensing coil is a top quality fitout. I attached an external speaker which added under 200gms of weight in total and still remains very well balanced so i never feel fatigued after many hours of swinging."

Stinky  Pete :http://www.detech-metaldetectorsaustralia.com.au/  and Goldsearch Dunolly are the  Australian distributors for the QED.
This is the only forum where you can talk directly with the designer/ manufacturer of the QED and  also some very experienced QED users.
Jrbeatty and Reg Wilson  and  Yellowfin  (or Doug here for that matter!)have NO vested  or pecuniary interests(or secret deals or cash for comment or any other undisclosed benefits )in the QED other than using it to find gold which it is doing very successfully! The ONLY people deriving  an income from the QED(other than finding good gold) are the 2 approved retailers and Bugwhiskers! The ONLY investor in the QED is Bugwhiskers!
I have never met Jrbeatty or Reg Wilson at Howards house or ANY other location!

australian electronic gold prospecting forum.com  |  DIY forum  |  DIY forum  |  Topic: coils ain't coils 0 Members and 1 Guest are viewing this topic. « previous next »
Pages: 1 2 [3] 4 Go Down Print
Author Topic: coils ain't coils  (Read 3630 times)
moodz
restricted
Hero Member
**
Offline Offline

Posts: 813


« Reply #40 on: Saturday April 19 2014 13:55:08 AEST PM »

  
  
Its just all about attacking or trying to discredit anyone who is trying to bring a new and competitive non ML detector to market by those that have  vested interest in maintaining the status quo! Its anti competitive behavior at is worst and is certainly NOT in the best interests of consumers, more competition, fairer pricing and  real innovation as opposed to  old drip feed technology!
doug smile

Doug, you have made the above statement many times, but I am yet to see or hear of any new development that has been stopped by these fellows. Did they stop the Pulse Devil? Did they stop the Gold Sweeper? Did they stop the machine being developed by Finders? Did they stop the QED?

If this coil from Moodz gives "an advantage over ANY commercial coil!!!!!!!!!!!" then it will sell even if it is significantly more expensive than the available commercial offerings. After all, when you pay quite a few thousand for a detector and then a grand or two for extra coils, it would be nothing to pay $700 - $800 for the best coil around. And, Moodz says he can make these coils for around $60 so the argument about cost to manufacture has no relevance.

Anyway Doug, can you point me to ANY new detector development that has been stopped by these fellows who seem to me to know what they are talking about.

Bill and Doug .... I made this coil because it is easy and cheap to make ...the basket weave is a moot point on a coil that is this big ... The inner diameter is 40 cm and the outer is 45 so the lay is only 2.5 cm. the basket weave is very suitable structurally for resin potting and a coil can be completely manufactured in around half an hour to an hour plus 24 hours to cure. I never said it was better than a commercial coil except that I can make em cheaper ... Mainly cos I don't have manufacturers overheads. Reasonably I could sell these at say 100 bucks ... Which is fair to all.
Logged
Aziz
invited members
Supreme Hero Member
****
Offline Offline

Posts: 3678



« Reply #41 on: Saturday April 19 2014 20:58:46 AEST PM »

Heeeeeey Moodz,

how many turns loop? I have counted 16. Right?

------------------
The forum-trolls haven't got any idea why Moodz coil will outperform a ML coil when shielded. Even Robby_H has no idea. Obviously.
Oh man!, when Robby_H has no idea, why should Mr. Candy?

^sif,
master of disaster
Logged

The "MadLabs Inc."(c)(r)(tm) participant.
Free science, knowledge and inventions to the mankind.
Fugg Obama! Fugg Rasmussen & NATO! Putin for Nobel Prize!
Doug
Administrator
Revered Supreme Hero Member
*******
Online Online

Posts: 15580



« Reply #42 on: Sunday April 20 2014 11:52:14 AEST AM »

  
Heeeeeey Moodz,

how many turns loop? I have counted 16. Right?

------------------
The forum-trolls haven't got any idea why Moodz coil will outperform a ML coil when shielded. Even Robby_H has no idea. Obviously.
Oh man!, when Robby_H has no idea, why should Mr. Candy?

^sif,
master of disaster


Patches  Junior Clown Patches Jr is also making the usual idiot of himself on this topic!
doug smile
Logged

All posts on this forum are the personal views of the author and should  not necessarily be  interpreted as those of Admin The QED contains NO patented or protected IP!!! No fake users on this site! This forum does not depend on  guest posting liars to survive!1/2 wit powerless to login and post! LO
Aziz
invited members
Supreme Hero Member
****
Offline Offline

Posts: 3678



« Reply #43 on: Sunday April 20 2014 22:56:54 AEST PM »

Oh well, I've started BW's magnificent coil software.
I want to know the answer first.
excited excited excited excited
^sif
Logged

The "MadLabs Inc."(c)(r)(tm) participant.
Free science, knowledge and inventions to the mankind.
Fugg Obama! Fugg Rasmussen & NATO! Putin for Nobel Prize!
Aziz
invited members
Supreme Hero Member
****
Offline Offline

Posts: 3678



« Reply #44 on: Monday April 21 2014 09:05:35 AEST AM »

I've got it!!!!!
But will the 9r33dla6 forum-trolls pay for it?

^sif
Logged

The "MadLabs Inc."(c)(r)(tm) participant.
Free science, knowledge and inventions to the mankind.
Fugg Obama! Fugg Rasmussen & NATO! Putin for Nobel Prize!
Aziz
invited members
Supreme Hero Member
****
Offline Offline

Posts: 3678



« Reply #45 on: Monday April 21 2014 17:47:18 AEST PM »

Hey Doug & Moodz,

I have sent you a private message (PM) and you should read it before you make any further claims on the spider/bundled coils. Ok?
scared
^
Logged

The "MadLabs Inc."(c)(r)(tm) participant.
Free science, knowledge and inventions to the mankind.
Fugg Obama! Fugg Rasmussen & NATO! Putin for Nobel Prize!
CAS
Newbie

Offline Offline

Posts: 3


« Reply #46 on: Monday July 28 2014 17:31:07 AEST PM »

Hey Moodz

I was just wondering what the performance difference would be between the coil you have made and the basket style (as per link below)
  .


I am going to build a coil shortly and if yours is similar in performance to the other one, I would prefer to build yours as its a much easier build.
Logged
moodz
restricted
Hero Member
**
Offline Offline

Posts: 813


« Reply #47 on: Monday July 28 2014 18:25:23 AEST PM »

  
Hey Moodz

I was just wondering what the performance difference would be between the coil you have made and the basket style (as per link below)
  .


I am going to build a coil shortly and if yours is similar in performance to the other one, I would prefer to build yours as its a much easier build.

Hi CAS

I cant see the Geotech link as they kicked me off for complaining about people hijacking my thread. 

...  well my coil seems to work OK .... I did not end up sheilding it because my frontend compensates for ground capacitance and EMI is not an issue for me  ... its very quiet. It damps in around 5 us on my circuit but it easily makes 10 us on a standard PI and probably you could get 7 or 8 us if your damping resistor is good and depending on maximum TX current.

One thing that seems to help is that I bring out the coil ends right into the connector. There are no soldered connections in the coil. The two ends are twisted and insulated using silicon tubing.

You can still use coax and sheilding as per standard coils.

Apart from that its pretty much a standard basket weave ....

If you have any other questions  happy to answer.

moodz

Logged
CAS
Newbie

Offline Offline

Posts: 3


« Reply #48 on: Monday July 28 2014 18:48:40 AEST PM »

Thanks for the reply.

I have posted the image on one of my sites so you can see what I mean :   .
I will be experimenting with the coil over highly mineralised ground and beach sand so it may need to be sheilded. Only time (and a lot of experimenting) will tell.

Hope you don't mind me uploading the image.If you do pm me and i will remove it.
doug smile
Logged
Doug
Administrator
Revered Supreme Hero Member
*******
Online Online

Posts: 15580



« Reply #49 on: Monday July 28 2014 18:57:27 AEST PM »

  
  
Hey Moodz

I was just wondering what the performance difference would be between the coil you have made and the basket style (as per link below)
  .


I am going to build a coil shortly and if yours is similar in performance to the other one, I would prefer to build yours as its a much easier build.

Hi CAS

I cant see the Geotech link as they kicked me off for complaining about people hijacking my thread. 

moodz


Geotech's loss is this forums gain! happy face Slowly picking up members from there! happy face
doug smile


Logged

All posts on this forum are the personal views of the author and should  not necessarily be  interpreted as those of Admin The QED contains NO patented or protected IP!!! No fake users on this site! This forum does not depend on  guest posting liars to survive!1/2 wit powerless to login and post! LO
moodz
restricted
Hero Member
**
Offline Offline

Posts: 813


« Reply #50 on: Monday July 28 2014 19:07:29 AEST PM »

  
Thanks for the reply.

I have posted the image on one of my sites so you can see what I mean :   .
I will be experimenting with the coil over highly mineralised ground and beach sand so it may need to be sheilded. Only time (and a lot of experimenting) will tell.

Hope you don't mind me uploading the image.If you do pm me and i will remove it.
doug smile

I had not seen that design before ... I was thinking of a russian one that is more similiar to mine.

My coil is a 20 inch ... the pic shows an 8 inch but I guess the principle is similiar.  I did wind one with solid magnet wire and the performance is not as good so stranded or litz seems to be better.  It would be interesting to have a removeable shield. The sheild wire could be run up to a banana plug hanging out of the main coil plug with a bit of heatshrink over it so the sheild could be clipped on or off  the coil at will.
Logged
BILLY
regular members
Junior Member
***
Offline Offline

Posts: 266


« Reply #51 on: Tuesday July 29 2014 08:17:56 AEST AM »

Moodz you have not been kicked off of Geotech.  You are still a member.  They only kicked Doug, Aziz, Patches Junior and someone else off.  You are still a member as I just looked.
Logged
moodz
restricted
Hero Member
**
Offline Offline

Posts: 813


« Reply #52 on: Tuesday July 29 2014 08:41:24 AEST AM »

  
Moodz you have not been kicked off of Geotech.  You are still a member.  They only kicked Doug, Aziz, Patches Junior and someone else off.  You are still a member as I just looked.
...hmmm well my password must have changed cos I can't login scared  thanks anyway Billy.
Logged
mickstv
invited members
Newbie
****
Offline Offline

Posts: 66


« Reply #53 on: Tuesday July 29 2014 09:25:50 AEST AM »

  
  
Moodz you have not been kicked off of Geotech.  You are still a member.  They only kicked Doug, Aziz, Patches Junior and someone else off.  You are still a member as I just looked.
...hmmm well my password must have changed cos I can't login scared  thanks anyway Billy.



Try the password reset and see what happens.  Link below.


  
Logged
IBGold
invited members
Junior Member
****
Offline Offline

Posts: 371


IBGold at home.


« Reply #54 on: Tuesday July 29 2014 15:20:04 AEST PM »

Hey Moodz,

For the last 18 months I have been useing two methods of coil cable construction both using the coils wire as the conductors  and both shielded the first is with the coil wires bifiliar wound with spiral wrap over then heatshrink then shielding which is connected with the coil shield with the shield connected  at the plug similar to yours but with shielding the other method has the coil active wire as centre conductor then two layers of spiral wrap then one layer of poleofin heatshrink I then strip the serving or insulation off the ground wire and spiral wrap this over the heatshrink incorporatind 2 /30AWG wires that connect to the coil shield and these connect to the ground wire at the coil plug so far both methods work fine with low capacitance over the top of the cable shield I use adhesive poleofin heat shrink takes time but good results but the coil lead is slightly bulky bu I can live with that  I cannot quite get to 5us but 7us is achievable no problems.

Regards, Ian. happy face
Logged

Regards, Ian.
greylourie
invited members
Hero Member
****
Offline Offline

Posts: 521


« Reply #55 on: Tuesday July 29 2014 18:42:17 AEST PM »

  
Hey Moodz,

For the last 18 months I have been useing two methods of coil cable construction both using the coils wire as the conductors  and both shielded the first is with the coil wires bifiliar wound with spiral wrap over then heatshrink then shielding which is connected with the coil shield with the shield connected  at the plug similar to yours but with shielding the other method has the coil active wire as centre conductor then two layers of spiral wrap then one layer of poleofin heatshrink I then strip the serving or insulation off the ground wire and spiral wrap this over the heatshrink incorporatind 2 /30AWG wires that connect to the coil shield and these connect to the ground wire at the coil plug so far both methods work fine with low capacitance over the top of the cable shield I use adhesive poleofin heat shrink takes time but good results but the coil lead is slightly bulky bu I can live with that  I cannot quite get to 5us but 7us is achievable no problems.

Regards, Ian. happy face

Hi Ian and all,

Sorry for clogging up Moodz thread. Just wanted to ask about shielding for mono coils/connecting cable that might need it ? Which way is good :
1) A two conductor cable comprising a centre conductor and an outer shielding/conductor With an outer shielding connected at coil-side to the coil shielding and coil Cold, and other end connected to GND at pcb/plug,

or 2) A cable comprising of two individually insulated wires with a third conductor being the outer shielding. The coil shield connected to the cable shield. The cable shield connected to pcb/plug GND. Two inner conductors being coil Hot and coil Cold. The cable Cold connecting at GND at pcb/plug. Making for two lengthy parallel runs going to same termination point....(example 2 is bad ? Yes ?)

All the images I have seen for mono coil connections show the connecting cable as being made up of two conductors.
Like in my first example question #1.

I would be quite happy if Doug decides to move this post to a new thread. A good title would be "Mono coil connections for Dummies".  happy face

Regards
Jon.
Logged
moodz
restricted
Hero Member
**
Offline Offline

Posts: 813


« Reply #56 on: Tuesday July 29 2014 19:35:59 AEST PM »

  
Hey Moodz,

For the last 18 months I have been useing two methods of coil cable construction both using the coils wire as the conductors  and both shielded the first is with the coil wires bifiliar wound with spiral wrap over then heatshrink then shielding which is connected with the coil shield with the shield connected  at the plug similar to yours but with shielding the other method has the coil active wire as centre conductor then two layers of spiral wrap then one layer of poleofin heatshrink I then strip the serving or insulation off the ground wire and spiral wrap this over the heatshrink incorporatind 2 /30AWG wires that connect to the coil shield and these connect to the ground wire at the coil plug so far both methods work fine with low capacitance over the top of the cable shield I use adhesive poleofin heat shrink takes time but good results but the coil lead is slightly bulky bu I can live with that  I cannot quite get to 5us but 7us is achievable no problems.

Regards, Ian. happy face

Hi Ian ...I don't shield em at all ... However bringing the leads back into the plug is an improvement. I am considering not having a plug at all in the interests of reducing resistance further.
Logged
Aziz
invited members
Supreme Hero Member
****
Offline Offline

Posts: 3678



« Reply #57 on: Tuesday July 29 2014 23:00:48 AEST PM »

I see, that there isn't any missing link linked to the following thread:
  !/

You will understand why the moodz spiral coil will be a good coil and why the (ML) forum-trolls being tarred & feathered. *LOL*
(No bad words about PJ anymore guys. There are more forum-trolls left to worry about. PJ won't be forgotton and he is in the metal detecting & gold prospecting heaven now. And I'll meet him there for a good cold beer any time.)
happy face
Aziz
Logged

The "MadLabs Inc."(c)(r)(tm) participant.
Free science, knowledge and inventions to the mankind.
Fugg Obama! Fugg Rasmussen & NATO! Putin for Nobel Prize!
crazy78
invited members
Newbie
****
Offline Offline

Posts: 47


« Reply #58 on: Sunday February 15 2015 03:16:19 AEDT AM »

  
I been makin coils ...turnin them out like hotcakes....mwhahaha.
Hi. what is the litz wire diameter
Logged
BILLY
regular members
Junior Member
***
Offline Offline

Posts: 266


« Reply #59 on: Sunday February 15 2015 07:09:52 AEDT AM »

  
  
I been makin coils ...turnin them out like hotcakes....mwhahaha.
Hi. what is the litz wire diameter

  Moodz, you must of made a bunch of coils by now.  Has anyone posted a review on a coil they have that you built yet?
Logged
Pages: 1 2 [3] 4 Go Up Print 
australian electronic gold prospecting forum.com  |  DIY forum  |  DIY forum  |  Topic: coils ain't coils « previous next »
Jump to:  


Login with username, password and session length

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2006-2009, Simple Machines
Simple Audio Video Embedder

BisdakworldClassic design by JV PACO-IN
Valid XHTML 1.0! Valid CSS!
gold