Elliptical coil for CZ

[Old California]

Always liked elliptical coils and asked a while back if any were made for the CZ, To get one for my CZ-3D would be a dream come true and through an internet friend (Thank you very much my friend!) found one of the few prototype elliptical's made for the CZ series.

Already know it's staying on for permanent usage, My type of hunting has changed allot now it's mostly relic and gold jewelry hunting. Was seriously needing an elliptical for the CZ to swing in tight places like plowed fields, up in Gold Country, rough adobe territory terrain or for gold jewelry hunting school yards and such not so much for depth but for coverage with a narrow coil.

The prototype 5"X10" coil has some loss of depth maybe an inch to 1.5" at most with coin size targets as compared with the stock 8" coil, But that's ok with the 5"X10" it's like running with a smaller coil having a tad better separation and a little more coverage. Plus, With the narrow footprint can run sensitivity a little higher and in some conditions gain back some of the depth.

Now, My CZ-3D is complete. Almost forgot, Target ID is perfect with the 3-D no difference.

Will be sharing more in the future as she hits old dirt and starts finding gold jewelry,

Paul (Ca)

 

[therover]

You continue to amaze me my friend.

I hope this set up sniffs out some nice gold jewelry for you.

 

[bik-il]

Any ideas why this coil didn't make it into production?
Seems like it would be a big seller.
I would buy one in a heartbeat. I'm a big fan of elips too.
Cheers

 

[Old California]

Hi John,

Already hitting local schools and such for gold jewelry, Nothing yet with recent hunts but they will come it time.

The only two gold signals I dig with the 3-D are foil and nickel signals, The majority of my gold jewelry finds ring up as foil with the CZ-3D and once in a while in the nickel range so these are the only two signals will dig when gold jewelry hunting.

Thanks John
Paul (Ca)

 

[Old California]

Hello bik-il,

Have no idea why Fisher didn't go forward with the elliptical coil. Only thing I can think of is due to the loss of depth? Out in the open areas away from trash depth loss is noticeable as compared with the 8" stock coil, But out in trashy areas I believe this is were the elliptical coil will shine having an edge with separation.

Actually like the narrow coil, Perfect coil for gold jewelry hunting and shallow coins once in a while. The elliptical coil will get a buried dime 6-7" inches tops in California soil, The 8" coil is about 8" to 8.5" on a dime so some depth occurs with the elliptical.

Take care,
Paul (Ca)

 

[Cal_Cobra]

Hey Paul,

Glad to see one of these coils put into action. I recall a few years ago there was a gentlemen selling several CZ prototype coils (including a DD) on fleabay.

I use a CZ-70 and would love to have a DD or elipitical, although the 10.5" is an eliptical concentric design, it's a big heavy coil, and I find that for large coil searches, the 12.5" Sunray coil to be far supurior. The CZ-70 was the first machine I acquired that took me to the next level as far as getting the deep coins, the CZ line is a great time tested line of detectors, in many ways supurior to the FT machines being made today.

I know you hunt a lot of relic sites (I'm also a friend of Tom Tanner), and was wondering how you find the CZ-3D to be in heavy iron spots?

Thanks,
Brian

 

[vito]

n/t

 

[Old California]

Hello Brian,

We may have hunted a site together once before, Believe the area dated back to the 1780-90's? Tom invited me and if memory serves me right you were there as well.

The CZ-3D is great out in open areas away from iron, Old iron that is areas laced with iron the CZ-3D is better off away from these type of iron masking conditions at least for my type of hunting. Currently, My CZ-3D is setup for gold jewelry hunts only, Dig all foil and nickel range signals avoiding all other targets.

The prototype Elliptical coil I have is one of the only four made, It is numbered as No. 2 of the four. Was extremely lucky to get this one, It will always be my main coil due to the current setup for gold jewelry hunting.

We'll probably meet again, Most likely we'll get together with Tom or the both of you can join in one of the areas I detect.

Take care
Paul (Ca)

 

[Old California]

Thanks vito,

Not sure if I posted a close-up pic of the meter assembly above the handgrip, So here it is it's actually off a CZ-6 QuickSilver.

The mod was a smooth changeover, Allot of soldering due to rerouting a new wiring harness from the control box to meter assembly. Actually has two meter assemblies, The CZ-3D meter panel remains at the rear of the control housing while the CZ-6 QuickSilver meter panel is mounted above the handgrip and is the actual working meter assembly. Over all got lucky and all went well.

This may be a one of a kind CZ-3D, Very very happy to have it

Thanks again,
Paul (Ca)

 

[Cal_Cobra]

Hi Paul,

I believe you're right about hunting together before.

You're CZ-3D is pretty slick, I like that setup a lot, I like the pistol grip and having the meter/TID data right in front of you. I like that about the CZ-70.

BTW I used to chat a lot with Tom Dankowski (Nasa Tom) and we were discussing a mod to do a digital meter like a Minelab Sovereign uses. A lot of folks have taken a modified Freight Harbor digitial multimeter and modified it to be a TID meter for the Sovereign, and the same thing is applicable to the CZ by tapping into the coil sending wires. I haven't tried it, but it shouldn't be that difficult, although it would take some testing to find the correct resistor setup to calibrate the meter to a useful scale.

I see you're also using the Blisstool is that correct?

It would be great to meet up some time to detect. Anytime you're available on a weekend, let me know, I can always meet up.

Take care,
Brian

 

[Old California]

That's cool you and Nasa Tom got together about tapping into the CZ cable coil sending wires, haven't tried that but sounds interesting that would be a cool mod.

(Blisstool) Yes, Indeed recently picked up the v5 model. Cleanup machine is it's purpose after nothing is left with our VLF machines.

We'll get together someday, Always up there in fact was there yesterday following up on a recon to a new site and later meet up and hunted with a good friend (El).

Thanks Brian and follow-up on research, You'll find lot's of places untouched through research.

Paul (Ca)

 

[Altamaha]

Regarding an elliptical/DD coil for the older CZs/CZ3D, I have always wondered why (considering their popularity) Fisher or some of the after market coil manufacturers (IE Coiltek, Detech) haven't developed/produced one of these coils for the CZs. As I look at the after market offering for these coils I see that they are available for the Fisher F series machines, Teknetics, Garret, Whites, Minelab (not the Sovereign, their explanation is because it is not manufactured anymore). Well Detech & Coiltek if the criteria for producing an after market coil for a particular metal detector is that it must still be in production, HELLO, the CZ-3D is still being manufactured and is alive/well, and there are many many of the older CZs still in use. There surely seems to be a market for one of these coils for the CZs. What's the excuse? Can't be because they are multi-frequency as that doesn't seem to be a problem regarding other multi-frequency machines (IE, Minelab, Whites DFX/V3i)! Give us a break guys (Detech/Coiltek)!!!

Would like to hear others weigh in on this. Maybe we can collectively send a message to these guys!

 

[woodchiphustler]

Nice rig my old friend.

 

[Cal_Cobra]

Dave Johnson (Fisher CZ designer) posted on this a while back. He stated that for some odd reason due to the nature of the CZ design, they were unable to make a DD coil work well with the CZ platform. It's a shame, if it had a good DD coil option, it would be a lethal weapon!

Regarding an elliptical/DD coil for the older CZs/CZ3D, I have always wondered why (considering their popularity) Fisher or some of the after market coil manufacturers (IE Coiltek, Detech) haven't developed/produced one of these coils for the CZs. As I look at the after market offering for these coils I see that they are available for the Fisher F series machines, Teknetics, Garret, Whites, Minelab (not the Sovereign, their explanation is because it is not manufactured anymore). Well Detech & Coiltek if the criteria for producing an after market coil for a particular metal detector is that it must still be in production, HELLO, the CZ-3D is still being manufactured and is alive/well, and there are many many of the older CZs still in use. There surely seems to be a market for one of these coils for the CZs. What's the excuse? Can't be because they are multi-frequency as that doesn't seem to be a problem regarding other multi-frequency machines (IE, Minelab, Whites DFX/V3i)! Give us a break guys (Detech/Coiltek)!!!

Would like to hear others weigh in on this. Maybe we can collectively send a message to these guys!

 

[vito]

Thanks vito,

Not sure if I posted a close-up pic of the meter assembly above the handgrip, So here it is it's actually off a CZ-6 QuickSilver.

The mod was a smooth changeover, Allot of soldering due to rerouting a new wiring harness from the control box to meter assembly. Actually has two meter assemblies, The CZ-3D meter panel remains at the rear of the control housing while the CZ-6 QuickSilver meter panel is mounted above the handgrip and is the actual working meter assembly. Over all got lucky and all went well.

This may be a one of a kind CZ-3D, Very very happy to have it

Thanks again,
Paul (Ca)

Thank you for posting these close-up pictures, Paul.
Looks like this detector is very well balanced to me.