To use CEM or not.

[The Proteus]

It may be a bit more complex than you'd want, but I'd probably use a few
CD4066's or some JFET switches with a little logic control system to
switch the various stages in and out. 

my $.02 worth...

The Proteus - Morphing the convergence of technology and passion.
-- Musician - Producer - Engineer  -  UNIX Admin Extrordinaire --
"...the best workaround for a bug in a UNIX utility is to install 
 the GNU version" - Kragen Sitaker

> Ok, here's a question for the group: The Paia EKx-20 CEM 3320 filter has a
> little 8-pin header which you can re-wire for different configurations.
> (all-pass, HP, LP, or BP) If you just look at the application notes for
> the 3320 you'll see approximately how the different stages could be
> switched.. but it requires more than just one switch. Not easily
> configurable for switching easily via a SPDT or SPST switch. 
> 
> What I want is simple: to be able to switch HP/LP/BP from the front panel.
> Anybody have ideas? A series of analog gates? Weird rotary switch I
> haven't heard of yet? (I would rather not buy another 3320) 
> 
> later
> Andrew
> 
> -| Andrew Schrock | aschrock at cs.brandeis.edu |-
> 
> 
> 
>