[sdiy] Filters

[Scott Gravenhorst]

harrybissell <harrybissell at prodigy.net> wrote about the fact that an OTA
introduces delay and Vactrol does not...

Thanks Harry, that was enlightening and is an excellent point especially for
the feedback path of a filter.  I had wanted to do an OTA VC-Q arrangement for
a FatMan SVF, now I will not do that and I will favor a H11F1 (linearized if
necessary) method instead.

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