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[email protected] pfjw@aol.com is offline
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Default replacement cpacitors

Mylar and polyester film caps are better than ceramic disk type for most purposes. Ceramic disk types are better than foil and paper if the foil and paper caps are more than a few hours old.

This also applies to Russian PIO caps - the latest fad in boutique audio. They are no better than they should be, and, for the record, less safe and less reliable than their Mylar/polyester equivalents. What they 'sound' like is irrelevant as unless the initial quality is truly wretched, capacitors of any given class sound no different than other capacitors of that class, whatever the price-tag.

Correct value is the key, and then the environment and requirement for precision. Modern Silver Mica caps are very precise, very stable and resist heat and accept harsh environments. Then down the line to mylar, ceramic disc, polyester. But the reality is that a consumer-grade receiver is a very gentle environment overall.

Peter Wieck
Melrose Park, PA