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Questions about tubes and gear that glows. FAQ

Read what?

Take a 6sn7

250 volt plate

22k plate resistor


About 1k bypassed cathode resistor

Gain 14, DB gain 22.9

Now take a 6sn7

250 volts plate

11k plate resistor


about a 1K bypassed cathode resistor

Gain of 11.25, DB gain of 21

That's a gain difference of 1.9db.

That's not enough to make any real difference if he's fighting a situation of "too much gain" but the harmonic distortion will be much higher with a 11k plate resistor vs. a 22k plate resistor.

Am I missing something?


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  • Read what? - Tre' 09:36:30 03/19/17 (2)


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