MXR envelope follower..?how works?

[Edu Silva]

Yes, and that's the secret behind Craig Anderton's Tube sound Fuzz! The
4049 is not exactly a linear device, so it colours the sound by some
anount, but how the heck it sounds so cool?

Any thoughts?

_____________________
Edu Silva - ES2 Audio
Salvador-Bahia-Brazil

----------
> De: Rob <cyborg0 at GlobalEyes.net>
> Para: Paul Perry <pfperry at melbpc.org.au>
> Cc: synth-diy at mailhost.bpa.nl
> Assunto: Re: MXR envelope follower..?how works?
> Data: Domingo, 29 de Novembro de 1998 16:24
> 
> Paul Perry wrote:
> > 
> > Looking at a poor copy of the original 1979 MXR envelope filter ckt,
> > has a CD4016 quad switch and a CD4069 hex inverter.... and that's it!
> > Presume the switches are used to make switched resistors for the
> > filter, with the pulse width modulated by the signal envelope.... but
> > I can't for the life of me see how any of it works.
> > Any advice, comments , gratefully received.
> > Also wonder how it sounds!
> > If any good, it is a miracle of minimalism, and cheap to boot.
> > 
> > paul perry melbourne australia
> 
> yknow, you can use the hex inverter as an audio amp..This is prolly the
> missing link you seek..
> rob