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In Reply to: RE: RIAA Network Cap Replacement posted by Barry on November 13, 2016 at 18:14:52
http://www.spec-corp.co.jp/e/pdf/SPEC_MICA%20Capacitors.pdf
Those RTEs are not very good. RTs are another thing entirely and very good.
But those silver micas are probably the ultimate for a phono stage.
I have not made the leap but I sure would like to.
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Different people have different tastes but for what it's worth, I did try 1% silver micas in my phono eq but preferred the Rel-Cap TFT caps I mentioned below. Unfortunately my old source for the TFTs, Handmade Electronics, appears to no longer carry them. That is most unfortunate because they sold them at a very reasonable price. Perhaps it was a closeout deal.
These are not your typical red coated silver micas. Those do not sound too good in an eq circuit.
More akin to the really good silver micas from Russian military surplus but even better.
They are hideously expensive.
I had never heard of them before. Where and how can one actually buy them (since they seem to be made in Japan, and I have never seen them for sale anywhere)? But it is too bad that the lowest value is .01uF (10,000pF). Most RIAA filters require lower values. And finally, have you actually listened to them in gear with which you are familiar?
has the REL TFTs, as you probably know. And his prices are not too terrible, at least for the very low values needed in RIAA filters. The problem for me is that usually the precise value I need is not available in REL TFT (or in VCap, either). That's where polystyrenes and conventional silver mica caps come in handy. The Russian SSG silver mica capacitors rank up there with any other type of capacitor I have ever played around with, for sonics, but they are large in size and most often will not fit into a tightly packed RIAA network.
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