[sdiy] Monowave goes GPL

[WeAreAs1 at aol.com]

In a message dated 8/24/05 8:38:38 PM, e4m at houston.rr.com writes:

<< To clarify things, that filter was never suppost to be 

sold by anyone. I have a non-profit, for personal 

use only policy on all of my work because that's

what I promised to do. No one is allowed to use 

anything from my site for a commercial product.


After taking it out I thnk that it's best not to break

my policy or my promise. The great man has only

been gone for moments.... 


That said, please replaced the EFM Moog filter with 

something else if you are going to be selling a new

Monowave kit. >>

Tom,

Just so you're up-to-date on this:  There are absolutely no legal 
restrictions on the use of the Moog ladder filter.  It can be freely used and adapted 
without restriction in commercial and non-commercial designs.  In fact, it is 
used in several high-profile commercial products, and has been for a number of 
years.  One of the first I can recall was the Peavey Spectrum Analog Filter 
module, a very cool and sadly underappreciated product from the early 1990's.  It 
contained a reproduction of the classic Moog transistor ladder filter.  Hell, 
Alesis even has the damn thing etched right into silicon in their Andromeda 
ASIC chip.  The patent has long expired, and neither license nor permission is 
needed.  You didn't know this?

MB