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Old August 23rd 08, 08:43 PM posted to uk.rec.audio
Eeyore
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Default Do all capacitors sound the same.



John Phillips wrote:

Jim Lesurf wrote:
John Phillips wrote:
Jim Lesurf wrote:



[1] I did the analysis of this effect some years ago for loudspeaker
cables and derived expressions for how the capacitance and inductance of
zip-cord speaker cable varied with current flow. The coefficients (of
dependence on the square of the current) in typical cases were in the
1-10 parts per billion range, IIRC. I decided they were too small to
matter.


WRT The ClarityCap papers I've not yet seen any figures for the SPL
generated for a given input voltage. So no idea how loud the results may
be. The paper also mentions doubling - which is what you'd expect if the
mechanical movements are due to the force between the plates caused by the
charges on them.


Yes. IIRC, the interview also reveals that the voltage-driven (charge-
driven) vibration in the capacitors is second harmonic, and that this
is as would be expected.


Come to think of it, yes it would.

Now show me a decent 'name brand' commercial quality capacitor that actually
does make any noise.

Graham