[sdiy] one switch per key

[DCMagnuson at aol.com]

In a message dated 3/30/01 9:17:42 AM Eastern Standard Time, 
efm3 at mediaone.net writes:

> Hi Dave the NFS has a one switch per key controller.
>  
>  http://www.geocities.com/efm_gc/nfs_b.pdf


Thanks Tom,

This should work fine.  What would a good FET for Q1 be?  I think I have 
2N3819's here... will those work alright?

Also, I see it's designed for a 32 note keyboard.  2.99V/32keys = .0934 
V/key.  I have a 37 key setup should I use .0934x37 or 3.457v across my 
resistor ladder?  Will Trimmer T1 allow enough range for this?

Thanks in advance

Dave Magnuson