Octature osc?

[jorgen.bergfors at idg.se]

I would like a three phase LFO. Any ideas how to make one? I already have one 
that use all pass filters to get 120 degrees  phase shift, but it only works 
right for a very limited frequency range.

/Jorgen





MIME:Hcabnivek at aol.com on 98-09-04 16.04.44
To:  synth-diy at mailhost.bpa.nl @ SMTP 
cc:  (bcc: Jorgen Bergfors/IDGSE)
Subject: Octature osc? 

Does anyone out there know of an available design for an octature 
osc/lfo?  My
understanding is that this is necessary for generating Shepard 
functions. (?)
thanks,
Kevin