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9am53 17th March 2005 07:17 PM

triode vs. pentode for pp output.
Hello, I hope the frequency of my posts/questions isnt upsetting anyone...heres my post/question of the day!
The phase splitting and pp output duties on my amp are performed by a pair of 6gw8/ecl86 High-Mu Triode -- Sharp-Cutoff Pentode tubes. I am assuming that the phase splitting is done by either 2 triodes or 2 pentodes, and the other two do the outputting. Knowing the "High-Mu Triode -- Sharp-Cutoff Pentode " description of the tubes, does this say anything about whether its the triodes or pentodes doing the outputting? I am just trying to understand the schematic before I do any surgury...thanks for your patience

SY 17th March 2005 07:34 PM

Why bother guessing? Just look at the datasheet for the tube.

Doing so, you'll find that the pentode section has 9W dissipation compared to the 0.5W of the triode section.

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