Elrog 300B vs Takatsuki 300B tubes


Has anyone heard the Elrog 300B tubes ? I read an article which mentioned that the Elrog 300B delivers 15% less power than a traditional 300B tubes. Can anyone confirm that it is audible ?

I am choosing between Elrog and Takatsuki 300B tubes. I would prefer the Elrog because it is cheaper and supposedly wonderful but if it really sounds less powerful then I have to rethink.
pani

Hi Crubio,
Not yet, he sent me an email stating maybe in the next few days.
Once he comes I'll post the readings.

Joe
Ok, George from Tubes,USA came by Friday and took the measurements.
He requested I hold off this information until he lets Elrog know his findings, which I will honor. I'll let everyone know sometime this week.

First he tested all the tubes on his tube tester. They all came back testing excellent.

These are the 300b we used in the Franks:
Elrog
EML XLS
Takatsuki
Psvane HI-FI series (stock tubes that came the amps)

The cathode resistor measured value in my amp was 1.025k

He tested for plate voltage and cathode voltages.
I'll let you know the results once George talks with Elrog.

Joe