msg wrote:

Phil Allison wrote:

** Be very wary of adding +/- DC rail fues to any power amp designed without
them.

Very likely if one or other DC fuse blows or is removed, the amp's output
will swing fully to the rail with its fuse still intact.

One could add overcurrent shutdown circuitry on each rail designed to shut
down the entire supply,

He's *repairing* an amplifier not redesigning it.

A decent amplifier has some element of overcurrent protection built in anyway.

Graham