Since I am working on the PS in
http://amfone.net/Amforum/index.php?topic=19034.0 I am reminded of a question I have.
What is the best (safest) order for the mains power cord, main power switch, and mains fuse?
A: cord -> switch -> fuse -> ...
B: cord -> fuse -> switch -> ...
Reasons why I am still uncertain:
A seems to be the most common
B seems to make the most safety sense, since a blown fuse will even remove power from the switch
A seems to make it easier to use multiple fuses in front of multiple primaries with different current needs
B seems to mimic the old fuse-in-plug idea and the fuse panel in your home infron of plugs and switches