"...in theory there is no difference between theory and practice, while in practice there is...."
ζs=R/L Zo=√(L/C) Δ Ω σ μ τ ω β δ η ϕθ λ π ζ ∞ ° √ Δ ∂ ∫ Ʃ ± ≈ ≠ µ Ω ± ÷ Θ « » ≦ ≧ Σ Φ ε • θ λ ρ ω κ ² ³ ½ ¼ ¾ ° ∞ ∫≈ ≠ ≡ Ξ ∑ π Π © ® õáûz{|}~€{‚ƒ „…†‡ˆ‰Š‹‚ŒŽŸ‘’“”•–—˜}˜™š›œ0×0Ÿ0Ë ¡¢0ú¤¥¦§¨©ª«¬­®¯°±²³ª´Á¶·¸¹º»¼½0☺ 50♥0¹³²■ ☺☻♥­±‗¾¶§÷ I recommend everyone interested in Electronics read the design book by Bob Pease (aka RIP) . http://www.apple1.fr/student_manual_for_the_art_of_electronics.pdf

A compendium of blog posts on op amp design topics

https://www.onsemi.com/support/design-resources/appnotes

https://www.onsemi.com/support#downloadable

Everything you wanted to know about electronics in small modules.
https://www.yuden.co.jp/resource/data/basics/basics_en.pdf < Low ESR Caps , High SRF L
http://electrical-engineering-portal.com/download-center/books-and-guides/electrical-engineering-3

Infineon Cloud FET Designer tools

Falstad Analog Simulator with a BPF example

Falstad Bode plot (options> Show Phase to be enabled) You can use Ideal Op Amps or change gain but add ESR

Falstad's Fourier analyzer ( check View gain/phase & Log View boxes) draw arbitrary waves or preset ones. :) gmail: tony.sunnysky

Richmond Hill, ON, Canada Time Zone : Retired Standard Time