[sdiy] simple voltage controlled clipper/distortion

[Dave Manley]

I threw this into LTspice and it works very well with 2N3904/6 well 
above any frequency you'd use in a synth.  Mismatching the transistors 
(changed one of 3904's to a 2222) and/or resistor values didn't seem to 
affect anything. You can get some interesting waveforms by controlling 
the clip levels with oscillators with different voltage offsets.

I wonder what that sounds like at audio frequencies?  Anybody have a 
spice to mp3 converter?

-Dave

(Yes, it probably took longer to spice it then it would have taken to 
breadboard it!)


Paul Perry wrote:
> I doubt that matching would be needed - and in particular, I doubt very much
> wjhether anyone could hear any difference, matched or unmatched.
> And I don't think the type of transistor is critical, either.
>
> It certainly won't hacve trouble over the audio range.
>
> But you will have to build it to be certain how it sounds.
> Straight clipping is usually pretty harsh if you are running music into it.
> If you are merely distorting an oscillator output, that's different.
>
> paul perry Melbourne Australia
>
> -----Original Message-----
> I know this schemo for long time, but ... Anybody has some clue / experience
> about this circuit, focusing on:  
>
>  " The circuit has reasonably high frequency response and accuracy..."
> What does it mean exactly? 
>
> It's really can be good for audio and high (little bit over the audible)
> frequencies ?
> (if yes is there any proposed transistor for the project - I mean speed or
> noise or matching is important or good old low signal silicones (2N39xx,
> etc..) are perfect without any matching and thermal contact? )
>
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>
>
>
>