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 » Thomas Henry designs
XR2206 VCO tri/sine troubles!!
Post new topic   Reply to topic Moderators: Scott Stites
Page 1 of 1 [2 Posts]		 View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
Author Message
tokyomatik



Joined: Jan 20, 2011
Posts: 171
Location: berlin
Audio files: 6
PostPosted: Tue Jul 30, 2013 10:02 pm    Post subject: XR2206 VCO tri/sine troubles!!
Subject description: sine looks like a square??		 Reply with quote  Mark this post and the followings unread
hi guys! i finish to build an 2206 vco and the sine is kind of strange.
is more than the double in amplitude respect the triangle and it looks like a square wave a bit rounded, im trying to fix it with symmetry and round trimmers but i dont see good results.
the triangle instead has a little spike / imperfection similar to the 4046... nothing too bad.
the square is ok.
i didnt used an lf442 but i already placed an order. at the moment i have an LM358...could be the reason?
im also not really sure about the wiring of the switch, i didnt found any drawing about it...anyone??
i also still have to wire the skew parts but i dont think this could be the cause.... Question
Back to top
View user's profile Send private message Visit poster's website
tokyomatik



Joined: Jan 20, 2011
Posts: 171
Location: berlin
Audio files: 6
PostPosted: Fri Aug 09, 2013 3:04 am    Post subject: Reply with quote  Mark this post and the followings unread
well i swapped the lm358 with an lf442and the result still the same...at this point i will try one by one all the xr2206 that i've in stock and if also this doesnt help....Ahhhhhhhhhhhhhhhhh
i will tKE A PICTURE OF THE BOARD...MAYBE IT WILL ALSO HELP
Back to top
View user's profile Send private message Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic Moderators: Scott Stites
Page 1 of 1 [2 Posts]		 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 » Thomas Henry designs
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