Bass Response of Cathode Bypass Capacitors (Guitar Amplification and Effects, Georgia Tech course)

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Here is the class playlist: https://www.youtube.com/playlist?list=PLOunECWxELQS7JV_KeeTJJpgGjOftoaAH

0:00 -- Introduction
1:27 -- Cathode bypass capacitor
1:59 -- Cathode impedance
3:11 -- Sanity checks
4:01 -- Thevenin equivalent
5:21 -- Transfer function
7:02 -- Staring into the abyss
10:58 -- Time constants
12:32 -- Fully bypassed case
13:40 -- Mesa Boogie Dual Rectifier
14:20 -- Zero corner frequencies
15:32 -- Shelf amplitudes
17:32 -- Pole corner frequencies (code)
19:53 -- Realizing my mistake
20:21 -- Pole corner frequencies (results)