RE: Measuring true Gm with Knight 600B?

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In Reply to: Measuring true Gm with Knight 600B? posted by pix on December 23, 2011 at 00:28:15:

Knight 800 is an emission tester - basically tests all tubes as diodes. Cathode emission drops with age and use, as does transconductance, though not necessarily proportionately. And of course, is of no use for matching.

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Topic - Measuring true Gm with Knight 600B? - pix 00:28:15 12/23/11 (1)

RE: Measuring true Gm with Knight 600B? - Tom Bavis 12/23/1115:15:45 12/23/11 (0)

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RE: Measuring true Gm with Knight 600B? - Tom Bavis 12/23/1115:15:45 12/23/11 (0)

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