Amp blowing fuses

[Phillip_H]

I have a VHT Sig:X that has recently started blowing fuses. After about 5 minutes of playing, the sound gets really crackly and I can smell something getting hot. It just happened a few minutes ago, and I looked inside. I could see that one of the power tubes was glowing bright orange. I'm thinking it's time for a new set of tubes. I bought the amp used, so I have no idea how old the tubes are.

Am I on the right track?

[RussB]

Yes, you sure are.


When a tube "redplates" it draws a huge amount of current. This current draw will exceed the rating of the fuse, and the fuse will blow.

Always replace your fuses with the proper value for your amp

[Phillip_H]

Originally Posted by RussB

Always replace your fuses with the proper value for your amp

Heck yes. I made sure to check the manual for this particular bit of info. It would be really stupid to cause serious damage to an amp by cheaping out on a 50¢ fuse.