[sdiy] emulating bi-polar capacitors

Mike Bryant mbryant at futurehorizons.com
Tue Feb 15 20:30:30 CET 2022

>I've never bothered, I've never noticed a difference in just using a 47μ instead of playing about with back-to-back capacitors even after the thick end of 40 years the earliest stuff I built that way still has capacitors that capacitate just fine.


Agreed.  Unless you actually have a reverse DC bias voltage (in which case rotate the capacitor) I've never understood any need for the non-polarised capacitors.  Most mixing consoles are full of thousands of them either feeding the input or fed from the output of an opamp via a resistor to ground.

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