I know i'll get a lecture for not knowing the math, but trust me....numbers are to me what nuclear physics are to a 6 month old chimp. I have a 12AX7 gain stage with a 220k plate R and a 1.9k cathode. Where would the cutoff points be with the following caps...
.68uf
.47uf
.33uf
I have a .68 there now and i think it's cutting off right after a particular mid frequency that gives the gain a sorta metalish tone. i want to get rid of that and leave just high end enough to keep the lows from getting muddy as it does if i lift the bypass cap. the tone i'm getting makes me think the .68uf must be rolling off somewhere around the 700Hz area. Am i close?
.68uf
.47uf
.33uf
I have a .68 there now and i think it's cutting off right after a particular mid frequency that gives the gain a sorta metalish tone. i want to get rid of that and leave just high end enough to keep the lows from getting muddy as it does if i lift the bypass cap. the tone i'm getting makes me think the .68uf must be rolling off somewhere around the 700Hz area. Am i close?
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