Hi all...
I read the article from P Baxandall about his eq from negative feedback. I have re-drawn the schematic from the article and I have a few questions about it.
First: He mention a high gain tube like the EF86 after the network but I just womnder if that is the case with the previous gain stage?
Second. The 500k pot is supposed to be a centre-tapped on and ... it is hard to find on the internet (unless I would buy a thousand from alibaba)... anyone knows where I can fin a couple perhaps? This is maybe a "Lab-question".
And third: The top pot of 1 meg... is that a centre-tapped or a "normal linear one?
And if anyone has an opinion how "good or bad" this eq is plaese fill in your opinon because I haven't built it yet... but I am curious
Best regards
/John
I read the article from P Baxandall about his eq from negative feedback. I have re-drawn the schematic from the article and I have a few questions about it.
First: He mention a high gain tube like the EF86 after the network but I just womnder if that is the case with the previous gain stage?
Second. The 500k pot is supposed to be a centre-tapped on and ... it is hard to find on the internet (unless I would buy a thousand from alibaba)... anyone knows where I can fin a couple perhaps? This is maybe a "Lab-question".
And third: The top pot of 1 meg... is that a centre-tapped or a "normal linear one?
And if anyone has an opinion how "good or bad" this eq is plaese fill in your opinon because I haven't built it yet... but I am curious
Best regards
/John