The HiFi Tuning fuse data sheets have been discussed like forever. Wake up and smell the coffee.
Like I politely asked.
I asked you to "post links" which you refuse the do, from factual scientific non audio related data that says AC fuses are directional.
Any data supplied by the Audio company/s selling these sometimes "re-bagged" audio fuse can be dismissed as hearsay/voodoo.
Cheers George