tlp1234
Moderator
Good to know and thank you for that.I find the JJ KT77's very reliable, and pretty awesome, actually. Used them for years, zero issues.
However, the EH 6CA7's have been on my want to try list.
I just got a Wizard MCII KT150 w/JJ KT88's. (675VDC on the plates!! Yowsa!!). The damned things were set at 67mA!! I lowered them to 40mA.