Is it worth the effort to change from the Cornell-Dubilier 0.22/630V from the std part list?
https://eu.mouser.com/ProductDetail/Cornell-Dubilier-CDE/150224J630LE?qs=gZ69X08SqGh6pt2emoBGCQ==
How do you actually quantify the performance of a coupling cap? I'm in the planing of a RIAA and pre-amp and there are a bunch of coupling caps in this scheme. I have same brand @ 0.47/400 for this.
https://eu.mouser.com/ProductDetail/Cornell-Dubilier-CDE/150224J630LE?qs=gZ69X08SqGh6pt2emoBGCQ==
How do you actually quantify the performance of a coupling cap? I'm in the planing of a RIAA and pre-amp and there are a bunch of coupling caps in this scheme. I have same brand @ 0.47/400 for this.
Use 630 volt caps only to avoid accidentally blowing a cap due to high voltages. Those Russian caps are good if you have them. They are on the large side and can be hard to fit
I used these in my last build. https://www.mouser.com/ProductDetail/598-224MPW630K A little cheaper and polypropylene vs polyester if that really makes a difference, I doubt it. Also made by Cornell-Dubilier rebranded. There is no current flowing through a coupling capacitor so dielectric absorption does not really matter. That means in theory a polyester cap works just as good as polypropylene as a coupling capacitor all things being equal. But I always have used polypropylene because there is not enough difference in price not to between propylene vs polyester.