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No.

All a cathode bypass cap does is eliminates the cathode feedback. Once you are below 5 hz or so, using a larger cap is counter productive. You do not want more of a 1 hz signal in your amp than you have to have. The quality of the cap is important as well. A 1K cathode resistor bypassed with a 50uf cap will have a cutoff frequency of 3.2 hz. With a 150 ohm cathode resistor, you are looking at a 500uf cap. Larger is not better!


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