I would like to build a sine-wave generator in the frequency range from 100hz to 600hz, in a battery operated circuit (9 volts), no I have no idea on what chip to use on this.. Im use to the 555 chip and built many weird noises for fun.. some quite anoying!!! anyhow can any of you experts help me please..
& also I would like a volume control so it be low Volume & high like a sweep generator ideally..
I've tried various Google searches.. but to no avail..
any help at all or a starting point would be great...