Large Advent Rev 2 crossover caps sourcing issue

[Andrew055]

I'm having trouble sourcing the caps for my Rev 2 crossover network. They currently have 16uf 50v NPE and 8uf 50v NPE,s installed. Can not find the exact specs for these anywhere. I'm assuming they are not produced anymore in those values. Has anyone run into this problem and what was your solution.

[JKent]

Hi Andrew and welcome

+/- 10% is fine for caps so you can, for example, use 8.2uF for 8 and 15uF for 16. Always go higher in voltage, never lower. Most of us use film caps because they lst "forever".

Kent

PS: Anything on this page will work for the 8uF https://www.parts-express.com/cat/metalized-polypropylene-crossover-capacitors/294?N=22074+4294967118+4294962385&Ne=10166&Nrpp=99999&Nrs=collection()%2Frecord[endeca%3Amatches(.%2C"P_PortalID"%2C"1")+and+endeca%3Amatches(.%2C"P_Searchable"%2C"1")]&PortalID=1

Any of these will do for the 16 https://www.parts-express.com/cat/metalized-polypropylene-crossover-capacitors/294?N=22074+4294967118+4294962383&Ne=10166&Nrpp=99999&Nrs=collection()%2Frecord[endeca%3Amatches(.%2C"P_PortalID"%2C"1")+and+endeca%3Amatches(.%2C"P_Searchable"%2C"1")]&PortalID=1

If you're really OCD you can make 8uF by wiring two 4uF in parallel https://www.parts-express.com/cat/metalized-polypropylene-crossover-capacitors/294?N=22074+4294967118+4294962697&Ne=10166&Nrpp=99999&Nrs=collection()%2Frecord[endeca%3Amatches(.%2C"P_PortalID"%2C"1")+and+endeca%3Amatches(.%2C"P_Searchable"%2C"1")]&PortalID=1     and add 1uF to the 15 https://www.parts-express.com/cat/metalized-polypropylene-crossover-capacitors/294?N=22074+4294967118+4294962704&Ne=10166&Nrpp=99999&Nrs=collection()%2Frecord[endeca%3Amatches(.%2C"P_PortalID"%2C"1")+and+endeca%3Amatches(.%2C"P_Searchable"%2C"1")]&PortalID=1

Some restorers prefer going with NPEs because they are what was used originally. You can find what you need here: https://www.parts-express.com/cat/non-polarized-electrolytic-capacitors/1385