Moog sequencer

Ken Stone sasami at blaze.net.au
Wed Jul 23 08:21:17 CEST 1997


Years ago I made a traffic light controller for portable/roadwork use that
made use of a string of 555 all triggering ther next in a loop much like
this sequencer idea. In order to stop this multitriggering (which would be a
disaster in traffic lights!) I had the outputs of all stages fed into a dc
mixer then a comparator, so that if more than one was on, the comparator
tripped the reset. The circuit for this I don't recall. It may have been
discrete.

This could be refined to prevent more than x stages coming on, if used as
part of a sequencer, though which stage would you chose to reset?

Ken

>
>You know...  <grin>  You could build each stage of the sequencer as 
>follows:  A 555 timer for step and gate duration plus one trigger
>at the beginning of the stage and another trigger at the end
>of the stage.
>
>This way, you could use normalised jacks to string these stages 
>together - the end-of-stage trigger starting the next stage, run the 
>last stage back into the first one to loop the sequence.
>
>You could break into this and have multiple taps back to get "random" 
>sequences.  You could make the timing voltage controlled and have the 
>pot for each stage but also sum everything back to a common CV input 
>for overall timing.
>
>Hmmmmm.....
>
>--- Via Silver Xpress V4.4 [Reg]
>
>
_____________________________________________________________

                Ken Stone  sasami at blaze.net.au
                   ** Catgirl Paradise **
               <http://www.anime.net/~kens/>
         ** Australian Miniature Horses and ponies **
             <http://www.blaze.net.au/~sasami/>
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