AW: LM 13600 question

BJ zzynt at swipnet.se
Fri Jan 22 04:41:20 CET 1999


Haible Juergen wrote:

> One resistor for both halves of the 13600 is ok. (It is *not* for two
> separate
> 3080's, BTW.)
> A 10k log pot is fine for tests, but you'll have a dead range at the low end
> that
> is also temperature sensitive.
> 
> Hey, everybody's building "new version" MS-20 filters now (;->)
> Count me in ! (As soon as I find the time).
> 
> JH.

When you do, why not insert a switch so you can select the 
HP/LP function for each filter,to get a 24 db HP and LP
and a Notch response too besides the usuall BP responce
as in the original design.

And while you are at it why not add another LM13600 so
you get a separate VC Resonance for each filter sektion!

Well, at least i did this in my MAS filter module for the 
Mas system some years ago and im wery pliiised of the performance.

And, yes i do have the original MS 20 VCA in the back of the filter.
(And i still dont think its noisy! >;-)..)
BJ



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