[sdiy] An Improved Sine Shaper Circuit

[Donald Tillman]

> On Apr 16, 2020, at 9:46 PM, Ben Bradley <ben.pi.bradley at gmail.com> wrote:
> 
> That's a fascinating idea and good work, an improvement over a common
> sine shaper I first saw decades ago,
> First I have an observation of a 'slight' error. The + and - inputs of
> the first two TL074 sections appear to be swapped.

Yeah, it's not too often that a new sine shaper circuit comes up, eh?  We have roughly 4 over 70 years.  

Or a new mathematic approximation to a sine.

Yeah, there are a lot of errors, including spelling, awkward sentences, stuff I forgot about.  I'll be patching it up as we go.  

> Next, may I post this elsewhere, specifically on diyaudio.com? They
> have a perennial interest in low-distortion sine wave generation,
> generally lower distortion than this gives, but some there may find
> this useful.

Sure thing.  Bop us a pointer, so we see how the discussion goes.

  -- Don
--
Donald Tillman, Palo Alto, California
http://www.till.com