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Framus Cobra Tubes


Sigel_TTD

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A mix of Chinese 9ths with other tubes of choice. I would go with a 9th in v1 and a Sovtek LPS in the phase inverter. Probably 1 EH mixed in there and a lower gain tube.

 

For Powertubes the safest bet is The Ruby's , Ive used them in mine for a long time. I just tried the Tungsol EL34's in there and like them also.

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Well I havent had enough time with them but so far I think they are a bit more focused in the midrange, a touch tighter and quicker on the lows and have a little more of that EL34 grind or crunch to them. Maybe the Rubys are a touch smoother, with a wider more compressed tone. They both would work great,....The top 3 choices from what I know is the Rubys, SED's and the Tungsols..... I would stay away from the EH EL34's and the JJ's in the Cobra.

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