In Reply to: common cathode unbypassed cathode resistor results posted by mfc on June 28, 2003 at 23:29:33:
Thank you, Mike. It's always good to see experimental evidence (even when sim). Your results corroborate (and extend) what was formally explained by Ketchledge in BSTJ Nov 1955."At an operating point of 2.899v, RL = 5K, B+ = 350v, an operating
point was hit where increasing the feedback caused all harmonics
to decrease linearly."If there are such points in real tubes...and if so, it will likely vary for each sample.
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Follow Ups
- Re: common cathode unbypassed cathode resistor results - Scott Frankland 15:54:18 06/29/03 (0)