Elrog 300B vs Takatsuki 300B tubes

Charles I think you are in good hands and will be enjoying those Elrog tubes in no time and hopefully for a long time. As Spock once said Live Long And Prosper.

Matthias also brings to the table an interesting observation about the current draw of 1.5 amps for the EML 300b XLS. It is 25% higher than a standard 300b which is 1.2amps. This is something I have mentioned in these pages to folks who were considering buying the EML's since they are considered drop in replacements for standard 300b's. I have over spec filament transformers in my amp that can handle the extra current so it is no problem but the bigger concern is that 25% extra current draw reduces the voltage accordingly. I noticed this when I first installed my new EML's. No problem since I can simply add or subtract the dropping resistors in my filament supply and I check my voltages regularly since I am a DIY person. This is not so easy for a person who is not.
All this to say that when considering different types of non standard 300b tubes it is very important to do the research to make sure your amplifier can handle this tube properly -Jet

Jeff,
Yes, the problem has been discovered and competent people will correct it. George Lenz of tubesusa.com has been very responsive with me and in direct/frequent communication with Elrog, so I'm in good hands. They won't ship the new Elrogs until they've been fully tested at the specific needed parameters. That's fine with me. From this point onward people seeking Elrogs will be asked what amp are they using, this will ensure proper matching. I believe what I have experienced in this situation will help others.
Charles,

Jet,
Wise observation and advice.

Well, after waiting so long for my Elrog's. The Post Service lost my first pair. George was kind enough to send me another pair last Saturday (I wish I would have waited). I see I won't be able to use them with my Franks.

I hope George (Tubes USA) will exchange them for ones that will not be stressed in our Franks.

I did listen the them for a few hours. They sound very good out of the box, very smooth and refined. Hopefully, with more hours they would surpass the Takatsuki's, as of now I still like the Taks better in my set-up.