electro-music.com   Dedicated to experimental electro-acoustic
and electronic music 		 
    Front Page  |  Radio
 |  Media  |  Forum  |  Wiki  |  Links
Forum with support of Syndicator RSS
 FAQFAQ   CalendarCalendar   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   LinksLinks
 RegisterRegister   ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in  Chat RoomChat Room 

 Forum index » DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
Volt per octave calibrator
Post new topic   Reply to topic Moderators: dnny, Uncle Krunkus, v-un-v
Page 1 of 1 [1 Post]		 View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
Author Message
kinrat



Joined: Jul 27, 2010
Posts: 4
Location: UK
PostPosted: Sun Jul 13, 2014 12:13 pm    Post subject: Volt per octave calibrator Reply with quote  Mark this post and the followings unread
Just built Ray's volt per octave calibrator. I have a problem with the manual step.
Works perfectly in automatic mode, but if a press the step button I get a lot of noise on top of the output signal (about 4v pk to pk). If I switch back to automatic it goes away after a few cycles.
The noisy signal is only on the output pin of the final opamp, the input signal is fine.

Anybody got any clues? My electronic theory is not good enough for me to think it through!
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic Moderators: dnny, Uncle Krunkus, v-un-v
Page 1 of 1 [1 Post]		 View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
 Forum index » DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Forum with support of Syndicator RSS
Powered by phpBB © 2001, 2005 phpBB Group
Copyright © 2003 through 2009 by electro-music.com - Conditions Of Use