Can the CS6 be improved?

[Anonymous]

I have just jumped on the PI bandwaggon by purchasing a CS-6. Is there anything that can be done to improve the CS-6 such as a larger coil, moving internal adjustments to the outside or anything else that could improve it. I currently use a Sovereign XS2 with a 15" WOT and have not found very much gold, although I can go to 16" for a US quarter.
Thanks for a great forum!

 

[Anonymous]

I would get use to the CS6 operation first. It's quite sensitive to gold as it is.
The depth of a quarter will not be much use to you as a method of comparison, you would be better served using a US nickel.
The sensitivity of the CS6 toward gold jewelry should be greater than the Sov.XS2.
Modifications can be done to it but is quite involved. It

 

[Anonymous]

Mr. Bill,
Thanks for the prompt response. You have peaked my interest in what modifications to the CS6 might be done to improve it. Is it anything you can describe in this forum?
Also, what are some of the technical parameters of the CS6; range of pulse delay, frequency range, coil inductance, any other compatible coils and any other technical things that will help me appreciate and understand the machine better once I start using it? I would like to apply this information to what you and Eric have already said in this forum.

 

[Anonymous]

The pulse range is from 15uS to 40uS. I believe ??? Not to sure about the 40uS.
Frequency range: ??? Reference to what, the frequency control on the detector, or the transmitted frequency range ? I believe the transmitted frequency range covers from 20khz. to 200khz.at the same time. (Talk about multi frequency detectors.)
I will have to ask Eric on the rest of it. Just can

 

[Anonymous]

Hi bbsailor,
I just got a CS6PI and could measure the inductance on the coil if you would like.
Thanks,
Charles

 

[Anonymous]

Charles,
Yes, that would be helpful. Please include the inductance in uH or mH, DC resistance and the frequency that you made the measurement. These would be helpful when I plan to experiment with other coil sizes.

 

[Anonymous]

Hi bbsailor,
According to my meters, the resistance measures 12ohms, at 1Khz - .983mH, and at 120hz - .980mH
Hope this helps,
Charles

 

[Anonymous]

Charles,
Thanks for the data.
I want to build additional coils, if that is possible. One large 15" coil for beach work and another small 1" probe similar in size to the SunRay S-1 probe.
Anyone out there in PI school land have any ideas?

 

[Anonymous]

If you keep the inductance and resistance about the same for whatever size coil you build, you wont go far wrong. For a probe, I recommend using a ferrite rod core. This will give you much better range and pinpointing than for just a plain wire coil. The standard radio antenna type of ferrite rod is no good but I have some suitable types in stock. Remember that if you build standard coils (6in to 15in), the winding needs to be shielded, otherwise you will get severe capacitance effects on a wet beach. CS6 coils use a thin single strand enamelled copper wire. Can't remember the gauge but I can find out tomorrow when I am back in the office.
Eric.

 

[Anonymous]

Eric,
Thanks for the information. If you could tell me the wire guage and the approximate number of turns for the 10" coil I can figure out the needed turns for the larger coils from there.
For the smaller probe I have some questions.
What type and size rod ferrite core do you recommend for the probe? I assume it is close to the type used in audio inductors? Does your last comment about "keeping the length of wire the same for whatever coil size" I build also apply to the probe with the ferrite core? Using the ferrite core will increase the inductance with less wire. Should the probe with ferrite core still be 1 mH or just use the same length wire as the 10" coil?

 

[Anonymous]

The wire gauge is 30AWG. I think the number of turns for the 10in coil is 30. The rods I use are 1/2in diameter and 3in long. It is what is known as a