northwest The QED can still use more coils than the 2300!
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australian electronic gold prospecting forum.com  |  Common interest forum.  |  General chat and discussion forum (Moderator: bugwhiskers)  |  Topic: The QED can still use more coils than the 2300! 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: The QED can still use more coils than the 2300!  (Read 593 times)
Doug
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« on: Thursday March 7 2019 12:23:45 AEDT PM »

 CT apparently have announced a new range of coils for the SDC.
  
The QED can use coils from 6"-36" something the SDC can't and taller folk will not get lower back problems like they will using the SDC! As well you can buy a QED with a range of coil sizes for very much less than the overpriced SDC!!!! The SDC with just one of the new coils will cost close to $A4000!
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« Reply #1 on: Thursday March 7 2019 17:46:48 AEDT PM »

Detech, the QED distributor have a stand at this years "The Australian Gold Prospectors Expo" at Bendigo Showground 6th - 7th April.
QED's will be on display and for sale.

  


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« Reply #2 on: Thursday March 7 2019 21:20:05 AEDT PM »

  
Detech, the QED distributor have a stand at this years "The Australian Gold Prospectors Expo" at Bendigo Showground 6th - 7th April.
QED's will be on display and for sale.



You can get 2 QED's for the price of one Sdc happy face or 1 QED with 3 or 4 more coils for less  than the price of the SDC with ONE coil!! happy face
doug smile
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« Reply #3 on: Thursday March 7 2019 23:59:01 AEDT PM »

  

Detech, the QED distributor have a stand at this years "The Australian Gold Prospectors Expo" at Bendigo Showground 6th - 7th April.
QED's will be on display and for sale.


Hi BW,

can you say (approximately of course) what would be QED tolerances
in regard to still acceptable mono coil inductance and coil resistance:

Coil   L = (approx.)   from  ___   to ___

Coil   R = (approx.)   from  ___   to ___
 
Thanks
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« Reply #4 on: Friday March 8 2019 06:19:23 AEDT AM »

The tolerance hasn't been evaluated in detail but the QED is far more accepting of out of spec coils.
A 494uH, 1.36 ohm coil was tried and worked but with lower than expected performance. Changing the damping from 500 to 900 ohms bought the performance closer to standard.
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« Reply #5 on: Friday March 8 2019 06:23:32 AEDT AM »

I would expect that the larger SDC coils would provide a larger antenna for EMI making the incessant, mind numbing chatter even worse than heard in this recent video.

  

The .024g nugget named is actually 0.24g.
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« Reply #6 on: Friday March 8 2019 09:11:55 AEDT AM »

  
I would expect that the larger SDC coils would provide a larger antenna for EMI making the incessant, mind numbing chatter even worse than heard in this recent video.


The .024g nugget named is actually 0.24g.

 I would find that horrible chatter intolerable!
doug smile
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« Reply #7 on: Friday March 8 2019 12:20:55 AEDT PM »

 The new SDC coils are not waterproof  so if they are used in water and they stuff the SDC then goodbye to your SDC warranty. SAD
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« Reply #8 on: Friday March 8 2019 14:59:41 AEDT PM »

The depth performance of the SDC on bigger bits is woeful! Because of the methods that ML use to overcome magnetic/VRM ground and yet still have sensitivity to very small gold I doubt that the new coils will improve the depth capability on bigger bits  much at all. The QED (and for 1/2 the price of the SDC!!)  eats the SDC for breakfast  for depth on bigger,deeper bits and  will I expect maintain this advantage even more as the QED can use much  bigger coils!
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« Reply #9 on: Friday March 8 2019 18:12:45 AEDT PM »

  
The depth performance of the SDC on bigger bits is woeful! Because of the methods that ML use to overcome magnetic/VRM ground and yet still have sensitivity to very small gold I doubt that the new coils will improve the depth capability on bigger bits  much at all. The QED (and for 1/2 the price of the SDC!!)  eats the SDC for breakfast  for depth on bigger,deeper bits and  will I expect maintain this advantage even more as the QED can use much  bigger coils!
doug smile
You can always hook up my 30"CC to the QED and the SDC is history and probably everything else too since the QED seems to be chewing up on the GPX depth.
Later I will manufacture 41" CC too, but I am not going bigger as the weight will probably become intolerable.
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GARY
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« Reply #10 on: Saturday March 9 2019 00:19:57 AEDT AM »

  

I would expect that the larger SDC coils would provide a larger antenna for EMI making the incessant, mind numbing chatter even worse than heard in this recent video.


It would be interesting if another video was recorded with the SDC in the video then fitted with one of the new 11" round mono coils and the QED with an 11" round mono and compare them over the targets buried at this test site, even over those tiny nuggets to display the QED's versatility & stability.

Gary.
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« Reply #11 on: Saturday March 9 2019 13:53:41 AEDT PM »

I like that idea Gary. My money would be on the QED.
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« Reply #12 on: Saturday March 9 2019 15:59:11 AEDT PM »

I look forward to somebody (pref a ML dealer or Coiltek) making some comparison videos with the "new" coils at the Coiltek test patch.
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« Reply #13 on: Saturday March 9 2019 16:16:18 AEDT PM »

Wow what a detector the sdc must be.
 Quote from the village idiot!
"---The SDC picks up everything within 12' no matter what size"!!!
doug smile


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« Reply #14 on: Saturday March 9 2019 16:55:32 AEDT PM »

Well it's one thing having new coils available for the SDC
But it's another story fitting the new coils
I've tried it, and it's a right royal PIA, the coil to detector plug is inside the SDC housing.

I can only conclude that the new Coils will come with some kind of patch lead??

You can see some pic's here, (Not mine)
  





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« Reply #15 on: Saturday March 9 2019 17:04:06 AEDT PM »

  
Well it's one thing having new coils available for the SDC
But it's another story fitting the new coils
I've tried it, and it's a right royal PIA, the coil to detector plug is inside the SDC housing.

I can only conclude that the new Coils will come with some kind of patch lead??

You can see some pic's here, (Not mine)
  



You have to buy the SDC accessory pack to fit the coils to the SDC.
doug smile
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« Reply #16 on: Saturday March 9 2019 18:00:18 AEDT PM »

  
Wow what a detector the sdc must be.
 Quote from the village idiot!
"---The SDC picks up everything within 12' no matter what size"!!!
doug smile




Sure Damn Clever
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« Reply #17 on: Sunday March 10 2019 10:41:49 AEDT AM »

  
  
Well it's one thing having new coils available for the SDC
But it's another story fitting the new coils
I've tried it, and it's a right royal PIA, the coil to detector plug is inside the SDC housing.

I can only conclude that the new Coils will come with some kind of patch lead??

You can see some pic's here, (Not mine)
  



You have to buy the SDC accessory pack to fit the coils to the SDC.
doug smile

How much is this accessory pack, and what does it include Doug?

 
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Goldman
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« Reply #18 on: Sunday March 10 2019 11:01:36 AEDT AM »

  
  
  
Well it's one thing having new coils available for the SDC
But it's another story fitting the new coils
I've tried it, and it's a right royal PIA, the coil to detector plug is inside the SDC housing.

I can only conclude that the new Coils will come with some kind of patch lead??

You can see some pic's here, (Not mine)
  







You have to buy the SDC accessory pack to fit the coils to the SDC.
doug smile

How much is this accessory pack, and what does it include Doug?




 

Check out the costs and coils at lucky strike at Geelong
  

Cheers Goldman
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« Reply #19 on: Sunday March 10 2019 11:38:55 AEDT AM »

Thanks Goldman

 happy face
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