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In Reply to: RE: The RCA tube manual gives no info on triode mode posted by DAK on February 13, 2019 at 09:48:05
Pentode sensitivity is irrelevant. I thought maybe you knew what it was in triode, based on your comment. The two tubes are probably similar when both are triodes.
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Buy Chinese. Bury freedom.
Edits: 02/13/19Follow Ups:
Looks like a mu of about 7 to me.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Honestly, using hand-drawn curves like those to design an amp is worse than just picking some random schematic off the 'Net and building it.
That graph is from Andrea Ciuffoli's site. There are two more; one highlights amplification factor (7.7), and the other shows gain with a 10K load (6.6). Again, I'm skeptical of the accuracy of things like this, even when they come with reasonably good credentials. In this case, I'm particularly bothered by what appear to be several mis-starts in the curves. There's just no substitute for data taken in a laboratory environment using calibrated equipment.
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Buy Chinese. Bury freedom.
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