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In Reply to: RE: Mica VS Polystyrene posted by Triode_Kingdom on July 21, 2017 at 13:14:14
Just want to point out that Xicon polystyrene caps are rated to 85C. I've never had a problem with this limitation in audio work, and never had one of these caps fail.
Man, just look at those numbers for dissipation factor and Q!
Buy Chinese. Bury freedom.
It can get hot near some tubes and polystyrene exhibits a low melting point. In a 'X7 based phono preamp 'styrene should be quite safe.
The film dielectric "pecking order" is PTFE, polystyrene, and polypropylene. Practical considerations, such as cost and heat tolerance, make polypropylene a "favorite".
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