The thickness of inner conductors differs?

[Shahriar]

Hi

As you may notice in shielded stereo cables, one of the inner conductor is thicker than the other one, for example one of them has 10 copper conductors and the other one has just 3, Is it really differ how we use them?

ThanX
Shahriar

[ante]

Hi Shahriar,

I don

[MP]

Shahriar,
The cable you have looks like a balanced cable, which would have a positive signal on one lead and a negative on the other, while the shield holds the ground. But, your cable is not balanced because the wires do not have the same number of strands. Because of this, you do not have the same potential from gound on both cables (balance). Unbalanced cable such as coax has one center wire and the shield acts as the ground. The cable you have is unbalanced cable, but has an advantage. The 3 wire conductor should be used as the ground. Thus, the ground is split between the shield and the 3 wire conductor. This will give you a little more help with noise rejection. A cable which uses only the shield as the ground tends to allow noise with movement of the cable. Even more so when the shielding starts to wear and fray internally. In your cable, this will not be so apparent.
This cable would not work in a system which requires a balanced signal. Both leads would need to deliver the same strength of signal (with opposite polarities). The difference in the number of strands would cause long cables to become unbalanced. However, in an unbalanced application, this is excellent cable.

MP

[surajbarkale]

Ante,
What you are refering to is the skin current effect. As the frequency of signal increses, more current flows along the surface. And the core carries lesser current. This effect occures at high frequency & there is a formula called depth penitration (or something similar ;D) for it.

[ante]

Well, I couldn