[sdiy] Speaking of MS-20 filters...

[Aaron Lanterman]

...is there an easy way to tell from the outside which filter one is?

I use an MS-20 for demos, and typically have my class work with it too. When I get to the discussion of Sallen-Key filters, I show the OTA-based MS-20 design and then I say "you've actually made sounds with this." (Acutally, I show them Rene's version first since Rene's schematic is much easier to read.)

But then, at some point, I remember there's a Korg-35 version, and I say, "well, actually, there was another version of the filter, and I'm not sure when one we have."

. Dixon wrote: