[sdiy] VCF caps in modern synths

David G Dixon dixon at mail.ubc.ca
Thu Jan 7 20:28:33 CET 2021


I typically use silvered mica caps in my handmade filters (those
weird-looking shiny black things), typically 200pF.

  _____  

From: Synth-diy [mailto:synth-diy-bounces at synth-diy.org] On Behalf Of
ColinMuirDorward
Sent: Thursday, January 07, 2021 12:20 PM
To: Vladimir Pantelic
Cc: *SYNTH DIY
Subject: Re: [sdiy] VCF caps in modern synths


[CAUTION: Non-UBC Email] 
Thanks for the chats on this.
Curious to hear that sh101/202 used ceramics. Sounds like this is quite
normal in the industry. I would hope that today we at minimum have a
predominance of C0G types since they don't cost much more than a cent each.
I was noticed in the ssi2140 docs that "Ceramic C0G/NP0, polystyrene, some
polyester and polycarbonate types are recommended".I was surprised to not
see polypropylene in the list and also have never heard of polycarbonate
types.

Colin


On Wed, Jan 6, 2021 at 2:06 AM Vladimir Pantelic <vladoman at gmail.com> wrote:


On 2021-01-06 08:56, ColinMuirDorward wrote:

> In the world of hifi/mastering gear, attractive looking WIMA packages,
> non-polar electrolytics, and the like, seem to add credibility to a
product.
> I don't see this trend perpetuate in the commercial-synth market, despite
> VCF-fetishes. At

Well, I have seen some suspiciously red and bulky capacitor packages in
Synthesis Technologies latest products, given they generate the sound
digitally 
they are not VCF or S&H related... but then I don't think Synthech needs to
add 
extra cred, no?


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