[sdiy] emulating bi-polar capacitors

Mattias Rickardsson mr at analogue.org
Wed Feb 16 14:37:17 CET 2022

Danjel van Tijn / intellijel <danjel at intellijel.com> skrev:

> Hey Mattias,
> What method are you usually using for eliminating DC offset between opamp
> stages?  Do you use polarized electrolytics? Or some other strategy?

Polarized electrolytics. With time constant way below audio, and series
resistance enough to protect it in case of reverse-bias. Often they are
from ~0 V to ~0 V, so the direction doesn't matter, but if it does it's
rarely unknown how they should be oriented.

(Or X7R, for some added mojo.) ;-)

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