ECE4448 L44: Foundations of Fuzz Effects (Guitar Amplification and Effects, Georgia Tech course) 

From the interested bystander's perspective, you missed one important option: "I watch them whenever they pop up in my YT feed."

I loved the video. I wish I lived closer to your university to take your class. You're an engaging teacher.

These kind of discrete transistor circuits are kinda mysterious for a beginner, so this analysis is really helpful

Generally: Overdrive: Soft clipping normally by using diodes in a feedback loop to soften the knee. Distortion, hard clipping, diodes after massive gain increase. Fuzz: internal transistor saturation created by driving one transistor into others.

I know the quiz was for the students, but George is my answer.

I've been reading that RG Keen article regularly since the 90s.

you are such a legend.

I had one of those original Fuzz Face pedals around 1970. I don't remember why I got rid of it.

A very good tutorial. Would it be possible to do an installment on the problems faced when a Cry-Baby is employed before the fuzz-face and an analysis or improvement on the FoxRox wah-buffer (or as I think of it the FoxRox single-opamp-fullrange-booster that allows to recover the signal-losses caused by a 22k or higher series resistance which is needed/employed to raise the impedance right before the input of the fuzz to make it work)? That would be golden! 😊

I am absolutely fascinated by this series and your explanations on these topics regarding audio applications in electronics. I’m currently finishing my 3rd year studying electrical engineering in college and I’m developing a strong interest in audio electronics. I have been watching your series as a supplement for absence of any audio related classes at my college since there are very few signal processing classes here, let alone classes on audio circuitry. I’m even designing my own guitar effect pedals from scratch and getting them fabricated on custom PCBs in the lab. I even have my own synthesizer design in the works inspired by your previous series on analog music synthesis as my senior project. I deeply appreciate the work you do and I look forward to each upload you make. Keep up the good work!

Damn, now you're getting me interested in this study I like anything related to guitars or drums, so making and maintaining such creations would be great

Shunt-Series-Feedback-Pair..... Remember your Sedra-Smith book from Undergrad :) ??

For a good history, search for Loud 'n' Dirty. There are several parts and the guy needs to be encouraged to continue the series. It's really informative.

I have started building my own clones of alot of vintage analog circuits and am happy to have found your channel, so i can gain a better understanding of how this all works. I would like to eventually get t a point where i understand how changing values of different components will change the tone. Thank you for the information. : )

This fuzz video puts things into perspective! I am planning to build one and this is very helpful. Any plans to go over Octave Fuzz in the future?

13:14 The capacitor at the input may be to shunt unwanted RF pickup.

Personally, i would maybe define diode hardclippers as distortion, diode softclippers as overdrive and clipping transistors and opamps as fuzz

谢谢你

Ive been more of a Paul person, but I will also tend to go back and rewatch some of the ones I have more interest in. Can we call that a Pete (Best)?

Who was the first person to ever think of this madness???? Where they a god

Kinda curious how that biasing and feedback scheme can be exploited in other electronics realms. Might play around in LTSpice later and see if I can make anything using it at RF frequencies.

Excellent analysis. Wish you were around 35 years ago! Lol.

Please do an analysis of the Pro-co Rat. It's a bit of a strange one, hard-clipping distortion with filtering stuff in the feedback and a unique tone stack. And was designed about 20 minutes from where I'm posting this.

I’m not even in your school just curious. Thank you.

I think I can safely guess you're not planning a series of lectures about e-drum technology any time soon? ;-)

Is there a harmonic difference when using pnp vs npn transistors?