Doepfer

I just know this is going to show my age...

Craig Anderton is a guy that used to publish DIY projects in 
Contemporary Keyboard magazine (now called just Keyboard these 
days).  He also published a number of books on recording, and DIY 
projects for musicians (with his latest book on Digital Mastering 
being published in Jan 2002).

A number of his projects were marketed (as DIY stuff) by, and still 
available from Paia... including a low end  (but still kind of 
useable) DIY vocoder, spring reverb, and something called the 
QuadraFuzz.

http://www.paia.com/vocoder.htm
http://www.paia.com/hotsprgs.htm
http://www.paia.com/quadrafz.htm

Anderton's whole approach was to de-mystify electronics used in the 
audio/recording process, with one aim being to make electronics 
affordable for musicians.  He's been writing on the subject for over 
30 years.

I can remember reading his articles back in the late 70's... ahh, the 
good old days.  Did I say the 70's?  Damn... I'm getting old.

Regards,
Kevin