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Questions about tubes and gear that glows. FAQ

RE: Tube strength and readings

An ideal (textbook) triode has a constant amplification factor (mu), but the transconductance (and therefore plate resistance) vary with voltage and current, since the fundamental space-charge limited current varies as the 3/2 power of the E-field at the cathode.


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  • RE: Tube strength and readings - TimFox 07:15:00 09/12/14 (0)

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