/diy/ - Do It Yourself

>>1273170
The quadrature oscillators are interesting, but having both sine and cosine from the same oscillator isn't really an advantage for me because I want to have different frequencies.

>>1273176
It's a totally open project, but I think that would be kinda "cheating" in my view.

>>1273291
>>1273340
Yes I've seen these Wien bridges with the lamps everywhere but I thought you couldn't get the right ones anymore (or that it was a pain). The thing that concerns me with all of these is that I need good double pots because there's always more than one resistance that has to be changed in order to change the frequency. Variable frequency is really important to the whole thing.

Are there any circuits that rely on only one resistance to change the frequency? If not I guess I'll go Wien bridge with a lamp and see if that's low enough distortion for that I need.

Thanks for all the suggestions!