+1 Wolf,
All potential fusers need to remember that fuses deteriorate with age from switch on surges (as pictured), and they just need to be replaced with good quality $2 fuse of the same value, as Almarg linked to.
https://i.stack.imgur.com/0uqWX.jpg
http://www.digikey.com/products/en/circuit-protection/fuses/139
Cheers George
All potential fusers need to remember that fuses deteriorate with age from switch on surges (as pictured), and they just need to be replaced with good quality $2 fuse of the same value, as Almarg linked to.
https://i.stack.imgur.com/0uqWX.jpg
http://www.digikey.com/products/en/circuit-protection/fuses/139
Cheers George