electro-music.com   Dedicated to experimental electro-acoustic
and electronic music
 
    Front Page  |  Articles  |  Radio
 |  Media  |  Forum  |  Wiki  |  Links  |  Store
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 
Live streaming at radio.electro-music.com

  host / artist show at your time
  Rob Adventures in Sound
Please visit the chat
 Forum index » DIY Hardware and Software » Jürgen Haible designs
Tau Phaser LFO Range Enhancement Mod
Post new topic   Reply to topic Moderators: Scott Stites
Page 1 of 1 [5 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
Author Message
sonicwarrior



Joined: Dec 22, 2005
Posts: 230
Location: Cologne, Germany

PostPosted: Fri Jun 22, 2012 3:50 am    Post subject: Tau Phaser LFO Range Enhancement Mod Reply with quote  Mark this post and the followings unread

In my notes I wrote that the LFO range of the Tau Phaser can be extended by making R67 (the 1K next to the rate connector) smaller.

Did anyone try that yet?

I'm not sure if it's that useful as there is an external CV input. Would like to have an input before I stuff my Tau Phaser front panel.
Back to top
View user's profile Send private message
Serenadi



Joined: Jul 03, 2007
Posts: 89
Location: Germany

PostPosted: Sat Jun 23, 2012 1:47 am    Post subject: Reply with quote  Mark this post and the followings unread

Joachim,

I did more than one change:

R67 to 470 Ohm
R66 to 100k
C54 to 680nF

This works very much better for me.


btw, the *official* CV_In makes absolutely no sens to me. If you open the connection ccw of the OSC_Level Pot by using the CV_In, the LFO signal will feed thru with full amount. I really don't know Jürgens thoughts when designing it.
Instead I skipped the CV_in (shorted) and use the V/Oct IN with an attenuator.

Cheers,
Bernd
Back to top
View user's profile Send private message
sonicwarrior



Joined: Dec 22, 2005
Posts: 230
Location: Cologne, Germany

PostPosted: Sat Jun 23, 2012 11:11 am    Post subject: Reply with quote  Mark this post and the followings unread

Thanks Bernd,

long time no see but it's good to know you're still around as you are a big inspiration and source of help.

I have a Bridechamber front panel which has is not laid out for an attenuator for CV In but with one for the 1V/Oct in.

So I guess you didn't use the suggested 1K Log pot there but a 50K or 100K attenuator?
I'm asking because I don't have a 1K Log pot at home but plenty of 50K and 100K pots (log and lin).
Back to top
View user's profile Send private message
Serenadi



Joined: Jul 03, 2007
Posts: 89
Location: Germany

PostPosted: Sun Jun 24, 2012 3:05 am    Post subject: Reply with quote  Mark this post and the followings unread

You're welcome.

Yes, as there are still one and a half row left in my two cabinets, I'm still around and active. But there are so many circuits and unpopulated boards in the drawer, I have to think what to do after that. Laughing

sonicwarrior wrote:
So I guess you didn't use the suggested 1K Log pot there but a 50K or 100K attenuator?
I'm asking because I don't have a 1K Log pot at home but plenty of 50K and 100K pots (log and lin).


Thats right, I used a 100k lin pot as a usual attenuator.

Bernd
Back to top
View user's profile Send private message
sonicwarrior



Joined: Dec 22, 2005
Posts: 230
Location: Cologne, Germany

PostPosted: Fri Jun 29, 2012 2:21 am    Post subject:   Reply with quote  Mark this post and the followings unread

Got my first one working today (except for the CV out) and the LFO range and the 100K attenuator are working very well for me.
Thanks again for the mod suggestions. Smile
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic Moderators: Scott Stites
Page 1 of 1 [5 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 » Jürgen Haible 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
e-m mkii

Please support our site. If you click through and buy from
our affiliate partners, we earn a small commission.


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