2. amps-preamps
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Did I just ruin my amp

First, this is my first tube amp hence the dumb mistake.  Over the past few days my stereo has been making an intermittent high pitch squealing sound which I thought was caused by some ground or feedback issue but now see was a power tube dying.  Yesterday my wife said she heard some weird sound coming from the speakers. She called me in and I saw what looked like fire in one of the power tubes. I immediately unplugged everything and that is where things now stand. Help on what to do next would be appreciated. I have a full set of extra power tubes which I was thinking of putting in the amp but I wanted to hear from more experienced people before doing this. Thanks. 
westside15
westside15 OP
7 posts
 
As jond and twoleftears mentioned I took out the fuse holder that was integrated into the power socket. Took a look and not only does there seem to have a backup fuse located in the part that I pulled out but the original fuse seems to be intact. Perhaps I got to it before it blew.

kalali - I bought the unit used a while ago and while I believe the amp to be really well made I had been warned that the tubes that Melody included are junk. 
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westside15 OP
7 posts
 
There’s a tube cover but it looked like there was fire in the tube. I could be wrong but it was way different then normal and different than the other tubes. 
oddiofyl's avatar
oddiofyl
3,699 posts
 
Could have red plated resulting in too much current draw , blowing the fuse.  Replace fuse and tube and hopefully youll be ok
rotaryphone
159 posts
 
I would change all el34 tubes with new ones. It’s costly but you said they are junk. Your amp should be ok but if you want to feel little better, open it up and visually check it over, especially little resisters for off colors. Replace them tubes and make sure to adjust bias if it’s not auto bias and make sure it’s stable. Make sure to keep speaker cables hooked up whenever you power up a tube amp.
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