[AMPS] re:4-250A

[Rich Measures]

>Rich comments;
>
>>I agree that you do indeed have RF negative feedback.  I do not agree
>>that grid current decreases distortion in any grid-driven
>>configuration.
>>Rich---
>
>Rich, there's a body of opinion that doesn't agree with you. For
>example, see the curves of IMD against grid volts in The Care and
>Feeding of Power Grid Tubes. My copy is the third printing,, and it's on
>page 72. ...snip...

These curves have nothing to do with grid current.  Whenever grid current 
flows in a grid driven amplifier, linearity is compromised.  
Rich---

R. L. Measures, 805-386-3734, AG6K   


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