Look at this:
http://img.photobucket.com/albums/v317/StephenGiles/phaseshift.gif
This seems to be a slightly more complicated phase shift network, I wonder what it would sound like modulated?
Stephen
There's one way to find out :D
Just taunting, might be an interesting subject.
I'm not able to tell you how to wire an LFO to it, perhaps something from a SS or Ross could be spliced in there. If I looked real hard I might be able to type something, but there are those around here [and you know who you are] that would probably know off hand how to do the splicing and how to tweak it [insert envy].
Technology of articles at GEO would probably be a good thing to reference.
A quick run through a circuit simulator shows that it's a two-pole phase shifter - yep, one complete notch per opamp! - but that it's quite hard to modulate it with a single resistor change. More tinkering needed, perhaps.
Maybe good for speaker sims that need lots of notches in the high end.
Thanks - it just looked inviting!
Stephen
Migvht be a candidate for a PWM switched-resistor phaser :wink:
That sounds good Paul, have it on my desk by Monday morning!
Stephen
...or else!
looks like a Dome-filter: the whole thing shifts all frequencies by the same amount... (?)