I just cant get use to the 5.75 inch concentric on the vaquero

[hatpin]

I like the 9x8 stock but the 5.75 is a lot different. On beaver tail tabs , it often maxes out on the disc. Also I will hit a target , thumb it up until it disappears. When I thumb it back down to the original setting it often remains quiet. I have to hit the pinpoint button or thumb it down further to get the signal back. Its like it needs resetting. Ive tried it several times and I think Im done with it. Maybe I have a bad coil. It hits coins fine and has found some good ones but its just too erratic especially with aluminum .

 

[MarkCZ]

I like the 9x8 stock but the 5.75 is a lot different. On beaver tail tabs , it often maxes out on the disc. Also I will hit a target , thumb it up until it disappears. When I thumb it back down to the original setting it often remains quiet. I have to hit the pinpoint button or thumb it down further to get the signal back. Its like it needs resetting. Ive tried it several times and I think Im done with it. Maybe I have a bad coil. It hits coins fine and has found some good ones but its just too erratic especially with aluminum .

You know about anytime I've switched coils from the original or from the one I train on,, I've had problems,
My Omega, I cut my teeth on the 11" DD, tried the 10" concentric that didn't work at all!
My Tejon, I started out with the stock coil and it worked great, I tried the 5.75" Concentric, the 5.75" Widescan and the NEL sharpshooter and I fell back to the stock coil.
My Fisher Coinstrike, trained on the stock, tried the 5" tried the 10" couldn't make the jump, went back to the stock.
My Fisher 1266 and 1270, I got broke in on the stock, tried the 5" the 5" X10" the 10" the 3.75" and the only one I really like is the stock one.
I Had a Whites XLT and I had collected a bunch of coils for it, the one I used was the stock.

Now for some reason my brother Ron seems to fair better with the smaller coils and rarely runs the stock coils???

Mark

 

[dahut]

I LOVED my Whites Classic ID with the smaller coil.

But I've noticed other detectors behave differently with the smaller loops, too.

 

[CO_T\Huntr]

I've had similar experience with the 5.75 on the Vaq so you're not alone...

 

[Rainyday101]

I don't know if this matters, but think about this- the Vaq operates at 14.5 Khz and the Tejon at 17 Khz, yet the same coil works for both. So what freq is the coil tuned to? A compromise between the two? Don't know if it matters, just food for thought.

 

[hatpin]

I've had similar experience with the 5.75 on the Vaq so you're not alone...

I was hoping my case would be an exception. sorry to hear others had problems too.

 

[hatpin]

I don't know if this matters, but think about this- the Vaq operates at 14.5 Khz and the Tejon at 17 Khz, yet the same coil works for both. So what freq is the coil tuned to? A compromise between the two? Don't know if it matters, just food for thought.

You may be on to something. I know nothing about how detectors work or KHZ's .

 

[dahut]

I've had similar experience with the 5.75 on the Vaq so you're not alone...

I was hoping my case would be an exception. sorry to hear others had problems too.

I don't know if you can call it "problems" just that the detector might shift the discriminate ranges with the change.
I don't remember my V being rendered inop by the smaller coil.

 

[REVIER]

I switched to that same small coil on my Vaq and had no problems at all.
Went just about as deep as my standard 9" and even my 10X12 DD, lost no targets and in all situations it seemed to be normal and acted correctly with pretty accurate ID's.
In only the first few hours it found me a small gold ring in a very large area...pure luck but it will find the goods if you swing over it.

Sorry to hear of any problems with this combo, but in my case I am very happy with the experience.

 

[hatpin]

I know others like it a lot , thats the reason I purchased one .Maybe I need to set the sensitivity a little lower or GB it a little different.

 

[MarkCZ]

I don't think its about the detector and coil being factory tuned to match, now I would if its on models that have the coils hardwired and no ground balance system.
On my detectors that have a manual ground balance whenever I change coils the dial up a very different value for that.

I'm thinking some of the problem is when we learn a detector and its coil and get pretty seasoned with it, then through on a different coil they are enough difference in the new combo to create a bit of a new learning curve. Then you have the possibility of a bad coil too.

Mark

 

[WV62]

Okay, could be all the above but it sounds like a bad coil. If you could get you hands on another 5.75 concentric that somebody else is not having problems with you should be able to tell pretty easy. If you still have the problem it is all the above if it works the coil is the problem, and you need to try and trade coils with the guy you bowered it from.

All those four pin coils are stated by the factory to work on the HOT series machines, so the function of the detector shouldn't change.

Ron in WV

 

[square_nail]

The little 5.75 concentric is money on my Vaq, especially in trashy areas. You might need to have Tesoro check it out, but there's a few things you can check first if you haven't already. First, take the coil cover off and make sure there's no black sand in there (if it has a coil cover). Second, make sure you don't have too much cable wrapped around the lower shaft close to the coil. Good luck. I hope whatever the problem is, that it's an easy fix. It's a great little coil.

 

[tvr]

5.75 concentric on either Cibola or Tejon has been an excellent coil for me, as have the original 9x8 coils that came with each. Disc has been about the same spot for like targets using each coil. I use the same 5.75 inch coil on both the Cibola and Tejon. The little bit of frequency difference does not matter. Gets about 3/4 the depth of the stock coil over open ground and separates targets in trash much better than the stock coil. I can run it with maxed sensitivity on the Cibola and nearly maxed sensitivity on the Tejon, pretty much like the standard 9x8.

Like some above, I'm thinking you may have a bad or out of specification coil.
tvr

 

[ToneTime]

Just a question, what would make a coil go bad? I just can't imagine how one would go bad. I can say with all of the coils I own that changing coils definetaley changes how the machine performs. It takes getting use to the change but I am at the point I found a favorite coil for each machine and tend to leave them set up that way.

 

[Monte]

Just a question, what would make a coil go bad? I just can't imagine how one would go bad.

Several things, but you might lump them into three categories.:

1.. The internal wire windings have become loose or have been jarred and are not in proper placement.

2.. The internal electronics, even one component, have failed/is faulty.

3.. The overall alignment and/or tuning are "Out-of-Spec" resulting in a poorly tuned or nonfunctional search coil.

The search coil is just one of the electronic components of a metal detector package and it needs to work at peak performance for best efficiency. There can be differences in the way some coils are designed compared with the particular way the manufacturer makes the detector and coil work, but the coil is a functional part of the circuitry.

I can say with all of the coils I own that changing coils definetaley changes how the machine performs.

Of course, and that's why we match the coil of choice to the performance it might provide to the types of site conditions we are dealing with.

It takes getting use to the change but I am at the point I found a favorite coil for each machine and tend to leave them set up that way.

Exactly, and that's why most savvy, avid detectorists learn their detectors well, and that includes learning each search coil for each detector to select the coil/coils that are most functional for their needs and with the detector the coil is mounted to.

And the reverse answer to your question about not knowing "how a coil might go bad" is realizing that, sometimes, you can find a search coil that is "better than the others" of a batch of the same size and type. On my White's modified IDX Pro I have a 6