Ive been seeing several posts from others stating the same issue with using the EL84M. Works fine for a few minutes or at LOW volumes, then once it's turned up, KA-BLAMMO! Could all of these other people, myself included, have "faulty" tubes? Is there anyone that has used the EL84M successfully with...

Ive been seeing several posts from others stating the same issue with using the EL84M. Works fine for a few minutes or at LOW volumes, then once it's turned up, KA-BLAMMO! Could all of these other people, myself included, have "faulty" tubes? Is there anyone that has used the EL84M successfully with...

My Class 5-01 has a Greenback 10. Ive also JUST tried the Sovtek EL84M hoping for more headroom, and it worked! For 3 minutes, then blew the T125mAL250V fuse on the board. Based on the threads Im reading here this seems to be common when using this tube. Is there any way around this? Has anyone succ...

I too just blew the same fuse on my Class 5 after installing a Sovtek EL84M. Does the Class 5 not "like" the EL84M? Im seeing several people posting about the same issue. But other posts stating to use the EL84M for increased headroom.

Any updates to this thread? I too put a Sovtek EL84M in my year old Class 5 just the other day, and blew the T125mAL250V fuse off the board. Ive seen others discuss the same issue. I have a hard time believing that we ALL got bad tubes. I have new fuses on the way and will be testing again. Have you...

Fuses ordered, should be here this weekend. Mainly wondering if this is a common issue with using an EL84M power tube, and if so, is there a way around it.

I just acquired a Class 5. Love the amp, but like many I was looking for a touch more headroom. Read in many places that the Sovtek EL84M would accomplish this. Tone wise the EL84M did what I wanted. But, like others have noted, within minutes the T125mAL250V fuse inside on the board blew. Is this a...

I just acquired a Class5. Love the amp, but like many I was looking for a touch more headroom. Like many, I put in the Sovtek EL84M. Tone wise it did what I wanted. But, like others have noted, within minutes the T125mAL250V fuse inside on the board blew. Is this an issue with the EL84M not liking t...