Ian Bell wrote:
Don't know if anyone is interested but I got this little snippet in the
email form Elektor today:
http://tinyurl.com/82upa5
He seems to have discovered yet another type of distortion which he has
christened Dynamic Damping Factor Distortion (DDFD).
Well, the DF does change during a wave cycle. Ra isn't constant at all
points; if it was, there'd be less THD and IMD.
Patrick Turner.
Cheers
Ian