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I'm planning to place a Power Wrap on a power cord that's highly visible, so the bright blue color of the Power Wrap is a no-go. Would there be any detrimental effect on sonic performance if the Power Wrap were to be threaded like a corkscrew into Techflex sleeving?
In that, rather than fully shroud the outside of the Power Wrap with braided sleeving (appearing like the bloated belly of a snake), I believe the power cord would look better if the Power Wrap had a more sleek appearance. TIA
Follow Ups:
Techflex and the like are made of nasty dielectrics and degrade the performance of anything they come near, IMO.
I agree that the jacket color of Power Wraps is unfortunate, to put it politely.
It will help the performance to apply acoustic damping materials to Power Wraps. While they are effective dampers for RF electromagnetic energy, they also have strong acoustic resonances. Acoustic vibration causes the Power Wrap to interact with the audio band signal.
The material that I've found that gives acoustic damping without injecting nasty dielectric effects is pure (not blended with polyester) cotton batting. I wrap the cable with enough batting to cause the Power Wrap to be a tight fit, then overwrap the Power Wrap tightly with more batting. Cut the batting into convenient strips for wrapping.
You can leave it the natural color or cover with appropriate cotton fabric for a designer finish.
Further tweaks depend on the extent to which you desire to modify the cord. Power Wrap performance can also be improved by making electrical connection to the AC safety-earth at the load end of the cord. It may be necessary to use something like a 100 ohm, half-watt, PRP resistor in series.
Multiple Power Wraps to cover more of the cord also help. These should be joined electrically end-to-end. The Power Wraps are made of Teflon and the proprietary damping wire. It is easy to solder to the exposed wire with a beefy iron, say 40 watts or more. Heat shrink tubing should be used sparingly if at all. I don't like the sonic effects of even the more expensive polyolefin heat shrink tubing.
Al's PW encased cords look much better since he covered them as described.
Unless you like cerulean blue and techie sprialled wire, then you have to do something!
...would be a simple low-cost option ;-)
Maybe for an IC design, but not for wide PC PWs.
I mean if the coil (not the outside area of the whole coiled structure) were threaded into small diameter cotton sleeving...
The special wire in Power Wraps is very stiff and rings strongly. Covering the blue Teflon with small cotton sleeving would help a little, but I don't think it would add enough acoustic damping.
nt
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