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I spoke with Todd Marshall today and he just picked up ALL the left over parts from White's.  He said to give him about 3 weeks to sort it all out before calling for availability.

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  • 4 weeks later...

I called Todd yesterday and he's received another truck load from Whites.  He asked me to give him a little more time but took a list of what I needed so he could keep an eye out for it.

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      https://patents.justia.com/assignee/minelab-electronics-pty-limited
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      I always have my ears perked up for something new in metal detectors and metal detecting technology. I’m not educated enough to really get deep into the technical side of it, but I have a general layman's knowledge of the subject.

      A couple years ago Carl Moreland, the Engineering Manager for White's Electronics, was interviewed on a radio show. I tripped over a reference to the interview on another forum and checked it out. It is very long, and near the end Carl dropped a bombshell. At least I thought so, but it went unnoticed and uncommented on in the metal detecting online world. I thought about posting it on a forum back then but decided to wait and see what developed. Here is the applicable portion of the interview:

      Relic Roundup Radio Show, January 17, 2012, Interview with Carl Moreland, Engineering Manager, White’s Electronics
      http://en.1000mikes.com/app/archiveEntry.xhtml?archiveEntryId=260469

      Transcript beginning at 50:57 mark:

      Carl Moreland - “I can mention one technology that we’re working on because the patent has already been published… or the application, not the patent hasn't gone through yet. We’re working on something called half sine technology, which has actually been around since the 1960’s in geophysical prospecting applications. This is where instead of transmitting a sinusoidal signal you actually just transmit half of the sine and you can do that at extremely high voltages and high ? rates and so on. It’s technically not pulse induction but it’s not VLF either and it is a time domain method. And with that we can get really good depth and we can even get target id information and do discrimination and so forth.”

      Can you see why I perked up at that? I am still amazed it did not get any notice at the time. Nothing happened for a long time. Then I got this PM from Rick Kempf recently:

      Sent 29 January 2014 - 09:04 AM

      Was looking for info on my new SD 2100 this AM when I sort of fell down a rabbit hole of old forum posts and emerged reading Whites new patent. About the first thing I noticed was that you were cited in "prior art".

      Here's what they cited: http://www.voy.com/76600/7/475.html

      The patent is here: http://www.google.com/patents/US20110316541

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      Hybrid Induction Balance/Pulse Induction Metal Detector

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