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Buchla 258J booster board p n p layout....any volunters?
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tokyomatik



Joined: Jan 20, 2011
Posts: 122
Location: berlin
Audio files: 6

PostPosted: Sat Apr 27, 2013 5:27 pm    Post subject: Buchla 258J booster board p n p layout....any volunters? Reply with quote  Mark this post and the followings unread

hi guys.i already finished my 2 boards for the dual 258 since months and to complete my build i just need to boost the level of main, triangle, square & sine outputs. i was wandering if somebody already made a layout for that or there is a volunteer with good skills in Eagle or other pcb design tools, wanting to do that. I know is a very simple circuit and would b possible to do the booster just using the various mod areas on the boards but a separate pcb could keep the build more "clean" and reduce the wiring to the minimum,
I'm pretty sure that such a board could be usefull also for the 291 ...eventually.

I was checking the schematics here as a reference, the parts inside the grey area


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Mongo1



Joined: Aug 11, 2011
Posts: 411
Location: Raleigh NC

PostPosted: Mon Apr 29, 2013 5:23 am    Post subject: Reply with quote  Mark this post and the followings unread

You could just get the MUUB-4 board for this job.
http://tellun.com/motm/diy/muub/muub.html

Another good choice would be Ray Wilsons Swiss Op-amp knife
http://www.musicfromouterspace.com/forums.html?MAINTAB=SYNTHDIY&PROJARG=SWISSOPAMPKNIFE/SWISSOPAMPKNIFE.php&VPW=1183&VPH=500



Gary
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johncronan



Joined: Feb 24, 2013
Posts: 42
Location: Chicago

PostPosted: Mon Apr 29, 2013 10:31 am    Post subject: Reply with quote  Mark this post and the followings unread

Mongo1 wrote:

Another good choice would be Ray Wilsons Swiss Op-amp knife
http://www.musicfromouterspace.com/forums.html?MAINTAB=SYNTHDIY&PROJARG=SWISSOPAMPKNIFE/SWISSOPAMPKNIFE.php&VPW=1183&VPH=500


Sounded interesting to me but I found that the link was dead... http://www.musicfromouterspace.com/forums.html?CATPARTNO=NONE&PROJARG=SWISSOPAMPKNIFE%2FSWISSOPAMPKNIFE.php&MAINTAB=SYNTHDIY&SONGID=NONE&VPW=1356&VPH=547
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Mongo1



Joined: Aug 11, 2011
Posts: 411
Location: Raleigh NC

PostPosted: Mon Apr 29, 2013 3:53 pm    Post subject: Reply with quote  Mark this post and the followings unread

Sorry about that - Ray's site is one of those things that uses Frames all over the place - I hate that.

To find it, just go to www.musicfromouterspace.com , and select the Synth DIY Tab. Look at the menu bar on the left side, and you should be able to find the Op Amp Knife,,,

Gary
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bubzy



Joined: Oct 27, 2010
Posts: 535
Location: United Kingdom
Audio files: 50

PostPosted: Thu May 02, 2013 12:44 pm    Post subject: Reply with quote  Mark this post and the followings unread

http://electro-music.com/forum/topic-51273.html

I designed this a while ago for a bunch of buffers, you can tinker with the values to get your desired results.

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