Preamp power supply capacitor upgrade

Where can you buy good caps supply store

Thanks for the suggestions!

@bigkidz The Miflex copper foil/polypropylene oil and Mundorf Supreme silver gold series are certainly within budget and worthy of consideration.

@alan60 The "vertical" configuration of the leads of Duelund would may pose a problem, so I’d like to stick with the "horozontal" configuration.

I would be interested if anyone has any thoughts on the Audyn true copper max or silver series metalized silver polypropylene.

I think I’m beginning to over think this, so might just stick with the discounted V-Cap TFTF since it’s going in the power supply.

@mark200mph The cap supply store I use is partsconnexion.

PS - When I do buy film caps I start at Parts Connexion, they often run seasonal discounts on film caps.

@yowser Your goal here is, I assume, to improve performance.

To that end, by bypassing the power supply, what you want is uniform output impedance of the power supply at all frequencies. So the correct dielectric may not be the one that is also the most expensive!

I'd stay away from oil and paper parts as they have a way of developing electrical leakage and may also leak physically. We stored a bag of such parts for about 10 years and upon retrieval, found that the bag smelled of oil. So for reliability I would not use such parts if DC voltages are involved.