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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
wyan001
29 posts
 
Some post back, there was suggestion of modding the Frankenstein monos by adding about 200ohm of resistance somewhere. Instead of modding the amp, is it possible to simply make a tube converter/adapter that wire a resistor to the pin of anode (or pins of filament)? Will that take care of the issue (without modding the amp)? Thanks.
alexzzz
5 posts
 
Wyan001:
Unfortunately you can't make adapter to add R to cathode bias: heater pins should be connected directly to 5v heater supply and virtual center of the heater goes via bias resistor to the ground (that's where additional R supposed to go). Also cathode resistor (in this case exiting one in series with the 200 ohm) is bypassed by capacitor.
alexzzz
5 posts
 
I also got my replacement pair (Matthias, thank you very much) and they sounds like ... Elrogs!
wyan001
29 posts
 
Alexzzz, thanks. :)
charles1dad's avatar
charles1dad
10,250 posts
 
With continued listening to my replacement Elrogs ER 300b I've come to realize they sound "better" than my original pair. I don't know if better matching of the tubes to my amplifier's operational points is the reason or not. The natural sound and music reproduction is the best I've heard in my home to this point. "If" the tube durability can match the sublime SQ, this is the best tube recommendation I can offer someone. This tube is really something special.
Charles,
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