In Reply to: RE: Questions about tetrodes for specialists posted by Chip647 on December 1, 2016 at 13:48:47:
You have checked that your signal generator is not dropping voltage as you go above 15K?
If it is not, there is some significant capacitance to ground internal to the tube or on the output. The tube may not be perfect.
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Follow Ups
- RE: Questions about tetrodes for specialists - Chip647 04:39:35 12/02/16 (0)