Yamaha DTXpress/DTXplorer/DTXtreme

Keith,

Thanks for all the replies!  Was curious how the 130S was wired.  From 
the pictures it looked like there were 2 seperate ribbon switches but 
couldn't reason out why... Curious, does the 10K resistor side control 
the choke or the second voice?

Chris

--- In DTXpress@yahoogroups.com, "Keith" <keith@...> wrote:
>
> One other point which you will find out when researching DIY edrums -
> people making their own cymbals (or snares/toms) find it tricky to
> duplicate the rim switch so often use two piezos to get dual zone
> cymbals.  With many modules this causes a problem because you need to
> use two inputs to use two piezo signals.  The DTXpander circuit in the
> files section here turns two piezo signals into a single piezo signal
> plus rim switch so you only need one input.
> 
> Keith.
>