Kush plugins "reverse engineering" (in: Effects)
By: DaveClark
15 Feb 18:04
Yes, of course they are. For one thing, tanh(x) is odd-symmetric about the origin as is x/(1+abs(x)). Real behavior is often asymmetric.
See for example, Will Pirkle’s excellent discussion of tube distortion:
https://willpirkle.com/special/Addendum_A19_Pirkle_v1.0.pdf
I myself have made us of quasti-static simulations in SPICE which produce asymmetric waveshapers as well as Will’s dynamic grid-conduction modelling in my own amp sims. Revalver includes SPICE circuit analysis, albeit curtailed…
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