A very good thread indeed! All above posts bring out the real experiences and make sense from engineering principles. I too found various successes in using some of the methods mentioned. However, i have a little reservation on Oatalay's method of cutting the pc into shorter lengths. Best to check with Powersnakes what's the MINIMUM length which will do the job. In eng'g sense, the conductor size, dielectric material, geometry(twist & formation), grounding and length all account to the effective "filtration" the pc designer is aiming to achieve.
I use Chang CLS6400 ISO, NBS Dragonfly II & AudioPower 313(obsolete?) pc's. They are not top of the line but they do a fine job on my tubed system which has a low current demand. I changed the Chang's feeder to a Belden foil shielded 3X14 Awg powersupply cable; connecting the drainwire to Chang's metal chassis, thus voiding my warranty right. I did this because my 20A powersocket is wired through metal conduits. The foil & drainwire serve as an extension of the conduit system. Please do not attempt this unless you are a qualified electrician. Regards.
I use Chang CLS6400 ISO, NBS Dragonfly II & AudioPower 313(obsolete?) pc's. They are not top of the line but they do a fine job on my tubed system which has a low current demand. I changed the Chang's feeder to a Belden foil shielded 3X14 Awg powersupply cable; connecting the drainwire to Chang's metal chassis, thus voiding my warranty right. I did this because my 20A powersocket is wired through metal conduits. The foil & drainwire serve as an extension of the conduit system. Please do not attempt this unless you are a qualified electrician. Regards.