"Precision rectifier" circuit-anyone use it for an octaver?

[earthtonesaudio]

This circuit:
http://www.play-hookey.com/analog/full-wave_rectifier.html
http://sound.westhost.com/appnotes/an001.htm
http://en.wikipedia.org/wiki/Peak_detector

...seems well-suited for use as an octave-up box.  Does anyone make one of these already?  If so, how does it sound compared to "standard" octave-up circuits?

[BrianJ]

I've done this before.  I think at least one commercial pedal uses a similar configuration as well.  Frankly, it does sound quite different than a standard transformer circuit but I wouldn't say any better.  It sounds a little cleaner because it does not require a big overdriven signal to pass the diodes - this circuit uses feedback to eliminate the "diode drop".  My best octave experiment was transformer driven and it tracked a lot better than any of my op amp experiments. 

[earthtonesaudio]

Cool, thanks.  I thought it might be a "clean" sounding octave.  Do you happen to recall what commercial pedal uses this?

[BrianJ]

John Hollis uses a, op amp driven full wave rectifier in his "OmniDrive" circuit.

[slacker]

J C Maillet has one on his site

http://www.lynx.bc.ca/~jc/superFullWave.html

[earthtonesaudio]

Cool, thanks!  I'll have to try out that full/half mod.