Dan Sleep and I had a discussion about tone capacitors in guitars recently. There are lots of methods, mods, and tastes for which tone capacitor value sounds best to the individual.
This isn't a comparison of those differences. But the video attached explores differences between capacitors of equal value, but from different makers.
The video also notes which ones give more sustain and a few offer an added bonus.
https://www.youtube.com/watch?v=nQcmYvpjx7s&t=264s
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Decided to make one today from 100% recycled parts. The motley group of capacitors are new and used.
Top to bottom: Vintage red Astron 0.1uF/400v
Generic green .047uF/200v (very common)
Vintage Sprague Orange Dip .047uF/600v
New Orange Drop .022uF/600v
Metalized polyester yellow .022uF/630v
Very cool.
Have you tried 2 similar in parallel? Not even sure if this would work. Or two with one reversed?