[oneplustwo]

Anyone have any guidance on whether a radial polyester film cap can be used instead of a metallized polyester film cap? The voltage, capacitance, and tolerances are the same. (This is for a sigma 22 build, C14/C15.) I tried searching for differences in caps but couldn't find anything useful.

 

[dsavitsk]

Quote:

Originally Posted by oneplustwo /img/forum/go_quote.gif Anyone have any guidance on whether a radial polyester film cap can be used instead of a metallized polyester film cap? The voltage, capacitance, and tolerances are the same. (This is for a sigma 22 build, C14/C15.) I tried searching for differences in caps but couldn't find anything useful.

Radial refers to the shape of the leads -- axial would be the opposite. Metalized means that the metal is directly applied to the film -- film and foil would be the opposite. The "radial polyester film" is almost certainly metalized, and the "metalized polyester film" that Amb suggests is radial.

 

[oneplustwo]

That all makes sense to me. So there really isn't any difference then practically? I've noticed a Xicon cap I have in mind isn't "boxed" like the ones I've seen used in this spot before. Don't think it matters, but wanted to ask.

 

[sugrhigh]

Essentially, all caps are the same (assuming they aren't polarized of course) but because of the different methods they achieve capacitance they all have a distinct sound signature to them so be careful when mixing and matching

 

[kipman725]

capacitors are made with different dielectrics for different aplications and cost, for example teflon for low leakage and tight tolerances and ceramic for cheapness.

 

[audiowize]

Mylar (or Polyester) capacitors sound like *****. Buy a few polypropylenes (sp) for a little more moolah and enjoy.

 

[hopeless]

Quote:

Originally Posted by audiowize /img/forum/go_quote.gif Mylar (or Polyester) capacitors sound like *****. Buy a few polypropylenes (sp) for a little more moolah and enjoy.

Not really, polyester caps can sound great (I've used polypropylene as well).

 

[audiowize]

What mylar cap can you recommend? I heard some green ones that were sort of OK back in the day, but that particular cap is long out of production. (I use Auricaps and V-caps in just about everything nowadays)

 

[hopeless]

Quote:

Originally Posted by audiowize /img/forum/go_quote.gif What mylar cap can you recommend? I heard some green ones that were sort of OK back in the day, but that particular cap is long out of production. (I use Auricaps and V-caps in just about everything nowadays)

In space-constrained applications I like the WIMA MKS2 a lot... find them transparent like a WIMA MKP4, but the larger value in smaller size makes them much more usable.

 

[dbfreak]

You can't go wrong with polypropylenes.

 

[tomb]

Quote:

Originally Posted by audiowize /img/forum/go_quote.gif What mylar cap can you recommend? I heard some green ones that were sort of OK back in the day, but that particular cap is long out of production. (I use Auricaps and V-caps in just about everything nowadays)

We recommend MKT (polyester) Roedersteins on the BantamDAC - they sound great. The Wima MKS do a good job as well. Even as a polyester, they are still superior to electrolytics in that position - including Black Gates.

P.S. The Roedersteins are light green. Perhaps you knew them under that brand name, but Vishay bought them out. I usually refere to them as Vishay-Roedersteins for that reason.