Simplest sine wave generator schematic?

Question

Simplest as in fewest components to make for an easier/cheaper build. I'm looking for a variable-pitch but I know where to put the pot to make it variable-pitch if it's a fixed pitch.

Answer 1

You're Jesus. You invented electricity. Why you asking me?

Answer 2

Unfortunately, the simplest does not produce a clean sine-wave.

I have always liked the filter types. You generate a square wave then apply a narrow filter. The result is the sine wave. Where the difficulty exists with this approach is that it does not lend itself to variable frequencies. This version does. Here is a good modern example:

<>http://www.edn.com/archives/1997/061997/...

Answer 3

The power company where I live provide a beautiful sine wave ! Comes out the wall socket 240volts ac !

Cheers Pete

PS Don't be a lazy dugger Jesus !!!!!

Answer 4

"I know where to put the pot to make it variable-pitch if it's a fixed pitch"

You know that but you don't know the rest? actually for the simplest oscillators it will not be easy to vary the frequency and a simple "pot" probably won't do it.

The the Collpitts oscillator may be among the simplest as far as part count goes, but as it requires an inductor it may not actually be the easiest to build, nor can the frequency be varied with a "pot"

Integrated circuit op-amps can make some rather complicated circuits easy to construct.

If you could be more specific with the specifications (like frequency, range you want to vary it over, and since a  "pure" sine wave is difficult to achieve, it would help to know the allowable distortion level)  it would be easier to give a useful answer.