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dtxpress rim trigger voltage

dtxpress rim trigger voltage

2015-12-21 by rhythmajik@...

hello all -- my first posting - 1st off> all best end of year and next wishes to all -
2nd> i have the version one dtxpress which has an option to allow rim trigger to simultaneously trigger pad trigger -- i use only 1 zone pads - question is how to attenuate voltage to a stereo in plug to allow standard piezeo voltage to emulate rim trigger voltage --- any help vastly appreciated and
thanks for your time in any and all events - rhythmajik [can check me at rhythmajik.com]


Re: dtxpress rim trigger voltage

2015-12-21 by keith@...

If you are wanting to create 2 zone pads using a piezo to trigger the rim then it isn't that simple (although it is not too difficult). The rim trigger requires a switch closure which is simultaneous with the pad piezo. If you want to use a piezo to provide the signal then it needs to provide two signals - a switch closure to emulate the switch (on the connector ring) AND provide a piezo signal to the connector tip. To do that you need to build a simple circuit such as http://dtxpander.co.uk/DKDI-21.pdf The jumper JP1 is optional, as is D3 - it just gives some options for getting signal levels and triggering correct.

Regards,

Keith.

Re: [DTXpress] Re: dtxpress rim trigger voltage

2015-12-21 by z'ev

hey thanks for almost instantaneous return -- i knew it must be possible -- quite intrigued as this will allow 4 voices per pad -- chords! -- thanks again -- will inform you how this develops -- 
--------------------------------------------
On Mon, 12/21/15, keith@... [DTXpress] <DTXpress@yahoogroups.com> wrote:
Show quoted textHide quoted text
 Subject: [DTXpress] Re: dtxpress rim trigger voltage
 To: DTXpress@yahoogroups.com
 Date: Monday, December 21, 2015, 11:44 AM
 
 
  
 
 
 
   
 
 
     
       
       
       If you are wanting to create 2 zone pads using a
 piezo to trigger the rim then it isn't that simple
 (although it is not too difficult).  The rim trigger
 requires a switch closure which is simultaneous with the pad
 piezo.  If you want to use a piezo to provide the signal
 then it needs to provide two signals - a switch closure to
 emulate the switch (on the connector ring) AND provide a
 piezo signal to the connector tip.  To do that you need to
 build a simple circuit such as http://dtxpander.co.uk/DKDI-21.pdf
 The jumper JP1 is optional, as is D3 - it just gives some
 options for getting signal levels and triggering correct.
 
 Regards,
 
 Keith.
 
     
      
 
     
     
 
 
 
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