MOTM

In a message dated 00-11-17 10:48:11 EST, you write:

<< What is so special about a VCO with through-zero FM? >>


phase reversal at the zero crossing enabling deeper fm with richer sidebands 
/ spectrum primarily.  it does sound better than "ordinary" linear fm but the 
improvement is incremental ( much less pronounced than the difference between 
"ordinary" linear fm and fm via exponential inputs is. ). notwithstanding, it 
is a desirable feature.  some very stable, useful designs have been published 
in "electronotes" over the years. hopefully, doug kraul will add some even 
more interesting improvements. 
best,
dave v.