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In Reply to: Tube strength and readings posted by Maddnotez@gmail.com on September 7, 2014 at 16:59:56:
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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Follow Ups
- RE: Tube strength and readings - TimFox 07:15:00 09/12/14 (0)