[sdiy] Filters

[john mahoney]

> anyone even dreaming about a guitar env. folower needs to check out
"Envelope
> Follower
> combines fast response, lowest ripple" by Harry Bissell Jr (me) in the DEC
25
> 2002 issue of EDN.

Cool! Here's a link to the PDF of EDN:
    http://www.e-insite.net/ednmag/contents/images/122602di.pdf

> I published it so that people could get the
> benefit of a better design).
Much appreciated.

> This circuit is ideal for guitar of bass, where
> the lowest frequency
> can be accurately predicted i.e. guitar = 80Hz
So, the lowest note of an electric bass is around 20Hz? I should've known
this!

Just found this page:
    "Frequencies and Ranges"
    http://www.contrabass.com/pages/frequency.html

OT: This baby goes down to 4Hz!
    http://www.contrabass.com/2002/2002-06-08.html

Well, anyway, this isn't a DIY area for me -- I use a Moogerfooger or VG-88
for filtering guitar.
--
john