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 
go to the radio page Live at electro-music.com radio 1 Please visit the chat
poster
 Forum index » DIY Hardware and Software » fonik's place
4th run of the PS3100 Resonator + X-Pan/Fader
Post new topic   Reply to topic Moderators: fonik
Page 2 of 2 [32 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
Goto page: Previous 1, 2
Author Message
inlifeindeath



Joined: Apr 02, 2010
Posts: 316
Location: Albuquerque, NM

PostPosted: Wed Apr 24, 2013 4:00 pm    Post subject: Reply with quote  Mark this post and the followings unread

just wanted to bump this and ask Fonik or anyone else how they set the offset trimmers?

thanks!

_________________
http://www.youtube.com/user/borisandfef
Back to top
View user's profile Send private message Visit poster's website
fonik



Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23

PostPosted: Thu Apr 25, 2013 1:27 am    Post subject: Reply with quote  Mark this post and the followings unread

thanks for the bump, i totally missed that.

i think this has been asked quite a few times int he past, and i should have added something to the documentation...

anyways, i set the trimmer so that the LEDs are only just not lit.

another approach would be to set the trimmers according to the internal LFO, so that you get the nicest sweep/range.

BTW on my current prototype for the upcoming fonitronik eurorack module i lowered the input resistors for the external CV and the trimmers to 100k (!) to get more control. this is running with 12V though, and i have attenuators on the CV inputs...

_________________
Posted Image, might have been reduced in size. Click Image to view fullscreen.
cheers,
matthias
____________
Big Boss at fonitronik
Tech Buddy at Random*Source
Back to top
View user's profile Send private message Send e-mail Visit poster's website
inlifeindeath



Joined: Apr 02, 2010
Posts: 316
Location: Albuquerque, NM

PostPosted: Sat May 04, 2013 5:22 pm    Post subject: Reply with quote  Mark this post and the followings unread

Got my build done today and it works great! Setting the trimmers is still a little funky depending on where the freq pots are at, but ill mess around with it a bit more. Just a heads up, JP7 has v+ and v- switched on the silkscreen. Luckily I checked with my continuity tester before I hooked it up to the power supply Smile
Thanks again matthias! Let me know if you want to share some of the upgrades hehe

_________________
http://www.youtube.com/user/borisandfef
Back to top
View user's profile Send private message Visit poster's website
inlifeindeath



Joined: Apr 02, 2010
Posts: 316
Location: Albuquerque, NM

PostPosted: Sat May 04, 2013 6:00 pm    Post subject: Reply with quote  Mark this post and the followings unread

Also, I did the timing cap mod and while I get great variation between the cap selection, there is very little variation on either extreme of the rate pot. Is this normal?
_________________
http://www.youtube.com/user/borisandfef
Back to top
View user's profile Send private message Visit poster's website
inlifeindeath



Joined: Apr 02, 2010
Posts: 316
Location: Albuquerque, NM

PostPosted: Wed May 22, 2013 3:16 pm    Post subject: Reply with quote  Mark this post and the followings unread

Bump
_________________
http://www.youtube.com/user/borisandfef
Back to top
View user's profile Send private message Visit poster's website
fonik



Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23

PostPosted: Wed May 22, 2013 11:15 pm    Post subject: Reply with quote  Mark this post and the followings unread

inlifeindeath wrote:
Also, I did the timing cap mod and while I get great variation between the cap selection, there is very little variation on either extreme of the rate pot. Is this normal?

not normal. check all resistor values of the LFO section, especially R37, R38, R39.

_________________
Posted Image, might have been reduced in size. Click Image to view fullscreen.
cheers,
matthias
____________
Big Boss at fonitronik
Tech Buddy at Random*Source
Back to top
View user's profile Send private message Send e-mail Visit poster's website
LektroiD



Joined: Aug 23, 2008
Posts: 1018
Location: Scottish Borders
Audio files: 2
G2 patch files: 2

PostPosted: Wed Oct 30, 2013 9:40 am    Post subject: Reply with quote  Mark this post and the followings unread

Has anyone made Eurorack panels for these?

I have a spare unpopulated board ready for action if someone can offer me a panel to buy Smile

_________________
LektroiD
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: fonik
Page 2 of 2 [32 Posts]
View unread posts
View new posts in the last week
Goto page: Previous 1, 2
Mark the topic unread :: View previous topic :: View next topic
 Forum index » DIY Hardware and Software » fonik's place
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