Well, I posted about this a long time ago with a preliminary schematic, and I finally put together the schematic with values/etc... It could probably be improved/refined now that I've learned a bit more, but it works as is. Also, the layout is probably not good, but it works.
I mixed two of tim Escobedo's circuits that were begging to be put together and really like the result. I think its better than either on its own, but I'm probably biased.
(http://i134.photobucket.com/albums/q97/jucas_photo/pwm1.jpg)
(http://i134.photobucket.com/albums/q97/jucas_photo/pwm.jpg)
Sorry for the ugly scan, but I just can't wrap my mind around doing it on a computer.
And, sound clips... bad playing, but gives the idea.
http://soundclick.com/share.cfm?id=8582564 (http://soundclick.com/share.cfm?id=8582564)
http://soundclick.com/share.cfm?id=8604397 (http://soundclick.com/share.cfm?id=8604397)
i like it, i built a pwm and really dig it. nice job mate!