[sdiy] Transistor Ladder question.

[Aaron Lanterman]

On Aug 29, 2008, at 10:22 PM, Ian Smith wrote:

> What happens if you add more "rungs" (transistor pair and associated  
> components) to the standard Moog ladder?

You get more "poles," which here essentially means the cutoff becomes  
steeper. You'll also get different behavior as you add resonance.

There's a nice analysis of the general case somewhere in Electronotes,  
under the name of "polygon filters" or "polygonal filters" or  
something like that. The complete Electronotes collection is well  
worth the $300 or whatever Bernie is charging for it now. That stack  
is a goldmine.

- Aaron