How to use mica capacitors legit for pedal building?

Hello all, I just notice that mica capacitors tend to be available with far tighter tolerances than their ceramic disc counterparts before I read it from here (source: https://www.kynix.com/Blog/Types-of-Capacitors-in-Use-Explained-in-2022.html#1-6-mica-capacitors). Never used em in a build before, so I didn’t know if there was anything about their function or how they affect signal/tone that makes them verboten for pedal building?

They are pricey AF but that doesn’t bother me so much..

Anyone has ideas of it? Many thanks.

by Robertlee
March 10, 2022

The standard ceramic capacitor can perform nicely unless their support can be subjected to vibration or other mechanical influence. Some (not each of them though) are of a remarkable stability versus temperature (NP0 or, with EIA-RS-198 coding, with their first letter starting with the letter C; ref.: "ABC of Capacitors" by WE, pp 82-next).

Not heard much about mica cap, except to repair vintage old radio.

by vanderghast
March 10, 2022

Mica capacitors were common enough in the distant past (very distant) but there is really not much reason to use them now as they are just an expensive alternative to a ceramic

by Foxx
March 12, 2022

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