[sdiy] 4017 sequencer

Pat Kammerer spivkurl at wearerecords.com
Fri Dec 31 10:46:17 CET 2004


Hi all,

I've been working on a little 8 step CV sequencer project, and I'm getting
odd results.

Here is the schematic;
http://www.wearerecords.com/temp/4017_8step.jpg

As you can hopefully see(sorry for the bad schematic), I am attempting to
use the reset and a 1P8T switch to chose how many steps are used.  Another
switch SPDT, enables or disables the chip.

After much trouble shooting, I've gotten rid of any errors that I could
find, and still there is an issue.  S1 works when it's selected for 1-4
steps, but jams on 5 when selected to run 5-8 steps.  When stuck at step 5,
it seems that ALL of the pots effect the CV that is output.

If anyone can help me, with the information that I've given, I would be very
thankful.  It already makes a really fun 1-4 step sequencer, so I really
want the whole project to work.

Thanks!
Pat




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