Air Testing The Best In 1991

[Steve Herschbach]

5 hours ago, Rivers rat said:

Someone must have (for a good reason) believed in it,i mean they  were the 1st correct me if i am wrong then come Minelab with the EXPLO XS if my memory is right...

 

 

RR

Not sure what you mean really. The Eagle was a top performer and popular in it's day. Of course the analog guys hated it. 

One last one for now, far better copy than anything I found out there already (just one bad scanned copy on another forum).

 

[stupot]

They were remarkable units at the time. I had the eagle MK1, which was unusual in that the numbers were not calibrated to lock onto a target just cycled unless right over it. Quickly modded to the SL version and finally sl90 with user save modes. It was a great favourite if mine with many different coils to be used, from other units.

Final one vx and vxi. Highly complicated menu structure but a good if not great machine. Id the freq of items best responded, brilliant. Early coils of 2d did fail, whites were concentric fanatics.

Love the old detector stuff!

[Bill (S. CA)]

I just finished reading through the entire engineering report.  It was a fascinating read.  The SignaGraph was a very ingenious invention.

Being naive like I am, I wish that the current crop of engineers working at First Texas, Nokta, Garrett, Minelab and XP would read this report.  I think there are features that could, and should be updated to include in our current crop of metal detectors.  

Steve, I for one hope you continue to post these types of documents as you come across them. 

Bill

[Steve Herschbach]

15 minutes ago, Bill (S. CA) said:

I just finished reading through the entire engineering report.  It was a fascinating read.  The SignaGraph was a very ingenious invention.

Being naive like I am, I wish that the current crop of engineers working at First Texas, Nokta, Garrett, Minelab and XP would read this report.  I think there are features that could, and should be updated to include in our current crop of metal detectors.  

Steve, I for one hope you continue to post these types of documents as you come across them. 

Bill

I think the SignaGraph is vastly superior to what Garrett did with the Vortex display. I suggested that they had both the rights and the ability to implement it as an alternative Vortex display. Would probably have a heart attack if that was actually something they did though, so do not expect anything to come of it. Too bad, still my favorite visual display system, something you can customize the responses with to some extent.

[Bill (S. CA)]

11 minutes ago, Steve Herschbach said:

I think the SignaGraph is vastly superior to what Garrett did with the Vortex display. I suggested that they had both the rights and the ability to implement it as an alternative Vortex display. Would probably have a heart attack if that was actually something they did though, so do not expect anything to come of it. Too bad, still my favorite visual display system, something you can customize the responses with to some extent.

Totally agree, Steve.  I am puzzled why Garrett isn't taking advantage of the White's technology and branding.  They own it, why not make use of it?

[Daniel Tn]

Those are the machines that were in the detecting magazines when I was a kid. Too young to get a job to buy one myself, and was still at the age my parents wouldn't put that kind of $ into something because they were convinced it was just a phase I was going through and that it'd sit in the closet after I used it a time or two. All I could do was dream of having one and dream of what treasures those highly sophisticated machines would help me find vs what I had.  

[Tom Slick]

Steve, I just more or less stumbled across this post as I was just Reading the DFX Engineering report last night. Looking at the White's air test you posted reminded me of how "Mild" the settings were coming from the factory. Most folks that tried the DFX felt that the detector had poor depth, but that was how White's released it to the public. I think that White's wanted it to run very quiet and stable almost anywhere in the world. Folks that took the time to actually learn it and make the proper adjustments were rewarded with a very good all-around detector. The Factory air test on a Nickel at 8" in preset, verses 12'-13" with adjusting the Sensitivity and Preamp gain was a real eye opener. Maybe the original SMF detector with a very informative screen.

 I wouldn't compare it's all out performance to my Deus II, but the DFX or the V3i wearing a BigFoot coil would Obliviate the Deus in a Park setting, hunting for modern clad and Jewelry. JMTSW. 😁