Hendrix used it pretty much through the whole song. He used it in a lot of his songs, but as far a flange and wah goes, they dont produce that sound, so it may be phase. Speaking of phase, there was this older Ovation A/E in the local geetar shop and the guys told me it had some mods to it. I plugged it in just to see what had been done and it sounded ok but then I fliped a mini toggle and it was like a phase pedal. The tone knob pulled out and was a rate pot as well. Blew my mind.The thing was only $300 I shouldve nabbed it, but instead I bought something Ive since stupidly traded.