Quote Originally Posted by enikoy View Post
Have you spoken to Evatco about it? They seem pretty knowledgeable and good guys in my dealings with them.

Tung-Sols are my go to tube for guitar and hi-fi amps and for me have definitely been the best $/performance tube. Very interested to find out what happened.
Yes, have been having a conversation with Evatco. No mention of the Tung-Sols potentially being faulty. Check out the amp, etc...
The amp's performing like a trooper with Tube depot 7025's and NOS Mullards, so I'll just leave as-is for now.
When the cause is eventually determined, I'll share accordingly...