Thread: Tocord
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Phil Allison Phil Allison is offline
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Default Tocord

"John Larkin"
"Phil Allison"

Somewhat along these lines John?

http://www.sumikoaudio.net/ocos/idx_products.htm


No. They show a thin inner conductor with thick insulation.

** Try reading the text.

There is no "insulation"used.

The black layer is a carbon filled plastic = a conductor.


If it conducts, it barely conducts. Nearly all the current will flow
through the copper. So it may as well be an insulator.



** Just guesswork - not fact.


The best carbon-filled plastics have volume electrical resistance in
the ballpark of a million times higher than copper.


** Yawnnnnn....


Think about it: in this silly speaker cable, if the carbon conducts
anywhere near as well as copper, it will short the cable.


** The cable may well get slightly warm when run at high power.

If the core to outer resistance is say about 1000 ohms per metre.


If it
doesn't, it's acting as an insulator as far as the magnetics go.


** The issue is capacitance per metre.

As you previously raised but now want to hide from.


"In keeping with the fundamentals of HF-technology the impedance of
any conductor will rise dramatically in the bass region..."

is standard audio pseudo-scientific nonsense.



** Fraid it is perfectly correct.

The characteristic impedance of short transmission lines rises at low
frequencies - as shown in the graphs.


Those graphs are absurd.



** No - YOU are absurd.

Absurdly arrogant and pig ignorant.


Measure the *actual impedance* of few feet of
zip cord at, say, 60 Hz.



** The point here is about "characteristic impedance" !!

You know the definition.

Its the load R that makes a length of cable look perfectly resistive from
the feed end.

The blue lines on that graph are perfectly correct.



...... Phil