What direction should Hi Fi tune fuse be installed

Mapman, just can't stay away, huh? I actually consider you a groupie, no offense.

:-)

I'll post once and once only.

Those that belive AC mains fuses are directional, can easily prove their point, by getting someone of high regard like Nelson Pass or John Curl to back them up on this.

Here are their PM's so you can ask them to respond. And if they don't you know what that means.

Nelson Pass contact via email at First Watt.
nelson@passlabs.com

John Curl contact via PM at DIYAudio.
http://www.diyaudio.com/forums/sendmessage.php?do=mailmember&u=5524

Cheers George

****I'll post once and once only.****

Well, la-di-da!

****And if they don't you know what that means.****

Do you really think those guys have the time or inclination to post in an audiophile forum about something like this? That they would not respond means nothing.

The quote below is from a multi-part thread on the Polk Audio Forum entitled "Studies On Residential Power Line Noise - Part 7: HiFi Tuning and Isoclean Fuses".

"Both the HiFi Tuning and Isoclean fuses have arrows on their cases which indicate that they should be oriented in the direction of current (energy) flow. Some people have scoffed and ridiculed the idea of "directional" AC fuses. Rather than something to ridicule, I saw the arrows as indications that there was something going on inside the "fuses" that required a specific orientation. Initially, my ears told me that the fuses sounded better in the direction of the arrows than against it. Noise spectrum measurements with an oscilloscope verified that the line noise was lower in the direction of the arrows than against it."

So, it would appear, at least according to the author that fuse direction does have a measureable bearing on performance.

Joe_appierto, nice post. At last someone, who understands science and with the necessary gear, does a test.