Where I can buy the Marshall Dsl40c's fuses?
I've had a hard time finding them. My Marshall went silent and I replaced all the tubes.
Running out of ideas.
Have you tried Reverb.com or Ebay? I have found a few odds and ends there for my amps. Also, did you check for continuity on the fuse? Unless you can see that it is blown, I have some amps that have sealed fuses.