[sdiy] random thought about sine shapers

[Paul Perry]

Sorry, by 'ordinary sine shaper' I mean a
piecewise straight line approximation using diodes in a feedback loop,
as used in analog computers when I was young :D

eg http://www.analogzone.com/den7.pdf

or http://www.freepatentsonline.com/3737642.pdf

The Thomas henry one is pretty good, though.
paul perry Melb Aust

----- Original Message ----- 
From: "David G. Dixon" >> Of course, overdriving an 'ordinary' sine shaper 
would give a waveform
>> change as well.
>
> I'm not sure what you mean by 'ordinary'.  I figure all sine shapers do 
> the
> same thing; namely, take advantage of the tanh distortion of differential
> pairs.  I'm not sure how "square-y" mine will go, as I don't think I've 
> ever
> cranked the pot that far.  I know it will reproduce the input waveform,
> though.