@timlub Copper/silver/tin/film are always superior to any metallized capacitors. Maybe not always for aluminum/film. As terminating the leads or anything to aluminum is problematic.
Even so, metallized capacitors are sprayed with conductive paint/glue on each end and leads are coiled and press fit. Ever take one apart? You can gently wiggle them out. It’s a terrible termination and one of the reasons why they will always be nosier than film/foil types.
CSA caps are even worse. They spray the extended metallized aluminum ends with copper. Copper corodes aluminum.
Even so, metallized capacitors are sprayed with conductive paint/glue on each end and leads are coiled and press fit. Ever take one apart? You can gently wiggle them out. It’s a terrible termination and one of the reasons why they will always be nosier than film/foil types.
CSA caps are even worse. They spray the extended metallized aluminum ends with copper. Copper corodes aluminum.