[sdiy] simple saw or sine osc?

[Oren Leavitt]

Dan Snazelle wrote:
> hey there
> 
> I need a one chip (maybe a tl072 or tl074 or 324) Sawtooth oscillator for a project I am building where
> I need a panel controllable Oscillator that can go into high enough frequencies to do nice FM/ring mod kind of stuff.
> 
> It doesn't need to be voltage controllable although I wouldn't mind if it was.
> 
> I think it needs to either be SINE or SAW because all the experiments I did with a TRI or SQR just arent getting me the right kind of
> "ring modulated/sidebands" sound I am after.  (which is too bad as I couldnt just a 40106
> 
> 
> thanks so much 
> 

How about a Wein Bridge oscillator for sine.
Can be done with one op-amp. Just need a dual-gang pot to sweep the 
frequency...or two LDRs can be used for rough voltage control of the two 
Rs in the bridge....

- Oren
> 
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