Yes, the pin layout and also A=Log B=Lin.......... or is it the other way around??Color Codes for resistor might be handy, though I prefer to just measure them if I am not sure what it is.
What I look up EVERY SINGLE TIME is the pin-layout for pots. I just cannot remember that darn thing.
Common voltages for ICs would be super cool.
You can make a "ghetto opamp" with a comparator. Not sure how it would sound in a pedal. I've got some NOS LM567's, find a pedal use for them!IC projects. I often find myself with extra ICs and always have trouble tracking down uses for them. The hell am I gonna use these LM311 chips for??