Fuse rating for Marshall B150

[T-Bay]

The fuse on my amp blew tonight, I know it needs to be a T2 slow blow type butbthe fuse has no ampage rating. Marshall list a 2 or 3A option. There is nothing in the manual. Does anyone know what rating I need?

[pete.young]

Start with 2A and work up.

[T-Bay]

[quote name='pete.young' timestamp='1486074502' post='3229126']
Start with 2A and work up.
[/quote]
That is the worst possible thing to do. If there is an issue that will blow the fuse and you then put in a bigger fuse you risk damaging the amp.

Luckily I was able to match the obscure markings on the fuse and get replacements. Unluckily it went pop immediately again :-(