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In Reply to: RE: a suggestion posted by jad on September 25, 2015 at 06:01:25
You say they were not marked "RTE". In fact, all the REL polystyrenes I have ever seen were marked "RT", but I sure can't say they never used RTE. That said, if you don't see RT or RTE, they ought to have some 2- or 3-letter designation on them, besides the Relcap label. REL uses a code to tell the user whether the cap is polystyrene or polypropylene, metallized or film and foil. By the way, you may know this, but REL capacitors are made in Southern California; no need to get them from Germany. The RTs are pretty nice sounding caps, so I was surprised you found them wanting or that the WIMAs could be so much better. (I'm guessing the WIMAs are metallized polypropylene types or maybe film and foil.)
Follow Ups:
I doubled checked where I got the caps and it was Hong Kong ... I got some other components from Germany and I them mixed up. The caps are in an epoxy case and are impressed with the marking Rel-Cap but don't say RTE. The listing says they are RTEs and the picture with the listing were stamped RTE along with the value and voltage rating. Partsconnection also carries them at a much higher price and the picture they have of them are stamped with RTE as well. I might have been duped but according to Rel-Cap specs the difference between RTEs and non-RTEs is that the RTEs are tin foil polystyrene while the non-RTEs are aluminum foil which is why I decided to try them. The link below shows the seller's similar offerings.
So we can conclude that the "E" designation stands for tin foil. I've never heard one of those but I would expect it to outperform the RT types, based on the fact that the REL MIT PPFX (polypropylene film and aluminum foil multicaps) do not sound as good as PPFX-S (the tin foil version of the same cap).
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