MAT04 for ASM-1's

Tony Clark clark at andrews.edu
Mon Nov 20 16:35:34 CET 2000


> I am building some ASM-1's and am thinking of using MAT04's for the matched
> tranny pairs. I just happen to have a few of these in my possesion. If I
> was to use one MAT04 for two VCO's would I have to worry about the VCO's
> interacting with one another?

   Hi,

   I did some extensive testing with the MAT-04, and yes, you will get 
VCO interaction.  It will come in the form of a sync which will happen 
when the frequencies are close to each other.  A lot of synths suffer 
from this problem anyway due to the fact that they typically run the 
transistor current source directly from the power supply rails!  I think 
the ASM suffers from this anyway, so my guess is that you won't suffer 
any additional drawbacks by using a MAT-04 over two MAT-02's.

   Tony

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