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 Forum index » DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
Ultimate VCO1 pulse acting strangely
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JanneI



Joined: Oct 19, 2015
Posts: 18
Location: Finland
PostPosted: Wed Mar 30, 2016 4:45 am    Post subject: Ultimate VCO1 pulse acting strangely Reply with quote  Mark this post and the followings unread
Hi all,

The pulse of VCO1 has these noticeable "glitches" and when changing the width to 20-10% the sound disappears. VCO2 & VCO3 doesn't have this problem.

Here's a mp3 of VCO1:

https://dl.dropboxusercontent.com/u/8085136/MFOS/MFOS%20ultimate%20osc1%20problem.mp3

0:00-0:20 pulse at 50%
0:20-0:40 saw
0:40-> pulse (changing the width)

Any ideas? Thanks!


-Janne
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JanneI



Joined: Oct 19, 2015
Posts: 18
Location: Finland
PostPosted: Thu Apr 07, 2016 12:20 pm    Post subject: Re: Ultimate VCO1 pulse acting strangely Reply with quote  Mark this post and the followings unread
Solution was changing the timing cap from 100pf to 200pf. The polystyrene cap didn't have enough time to fully discharge.
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