Elrog 300B vs Takatsuki 300B tubes

Wyan,
Do you rotate between your Frankenstein and First Watt J2 amplifiers driving your Voxative speakers?
Charles,

Wyan001, I was told by TA the Elrog can only handle DC heating, despite what manufacturer claim. It is my understanding the Big 7 uses AC heating. So I would be very careful.

Charles, I still keep J2 but I do feel that Frankenstein is a better amp driving Voxativ. It is significantly more responsive to source component change than J2.

Dracule1, thanks. I suppose that might be the cause then. I am also aware of Elorg/Lampizator issue reported by other users.

The silly thing is, after Elrog failure on my Lampi, I am reluctant to try Takatsuki on Lampi, and reluctant to try Elrog on Frankenstein. Maybe I should give these a try some day.

Hmm...one of my Elrog 300B seems to be dying (low conduction). Gary Alpern of True Audiophile (great folks!) was kind enough to give me this link. Wonder should send my set in now or wait until Elrog corrects the problem. No problem with replacements so far?

According to what I read on tube asylum, Elrog is expected to fix the failure issue by now. Any news on that?

Charles, I keep J2 only because I occasionally build loudspeakers and I need J2 to tweek and burn in some components. It is a very good SS amp though, top in its class. :)