6 Comments

I'm old enough to remember warming myself next to a bank of vacuum tubes (thanks to my mad engineer father who had a basement full of electronics)

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My guitar amp still has tubes in it. The last refuge of a glorious technology.

Also funny that "tube warmth" refers to distortion, which feedback was designed to remove. I pull the post titles out of my ass...

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Nice post and explanation. Just to say that the 4th equation (solved for Vout) shows with a term A/1AB on my screen. I guess it should be A/(1+AB)?

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Yes, the LaTeX rendering on Substack is sadly still a bit janky. I see the right formula on my end, but I often hear that it renders weirdly on other people’s machines.

If only they would let me center text, I wouldn’t use the editor at all…

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It’s a fun exercise to compute Bode’s sensitivity function for the closed-loop system both in terms of A and in terms of B.

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I’m trying so hard not to say laplace transform…

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