[sdiy] VCR Assymetrical Distortion Better, but still not good

[Scott Gravenhorst]

The linearity resistors do improve the symmetry, but still don't allow a
very large signal to be used.  AN105 says that the linearity resistors
should be about 10x larger than the drain to input resistor.  I've used two
100K resistors with a 10K drain to input and I've used two 1.8 megs with a
100K drain to input, not a whole lot of difference, I have to keep the
input signal around 40 mV or it starts distorting pretty bad (rounded peaks
instead of points), more symmetrical, but distorted nonetheless.  Shall I
want this distortion?  I dunno at this point.  Larger linearizing resistors
also means the gate voltage swing needs to be larger.

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