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 Forum index » DIY Hardware and Software » Developers' Corner
Cv Bdd delay
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axl



Joined: Oct 28, 2012
Posts: 33
Location: ita

PostPosted: Wed Nov 07, 2012 10:48 am    Post subject: Cv Bdd delay
Subject description: Can someone help me?
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Hello, i'd like to build a BBD delay but can't find a project with all the features I need so I was wondering if someone on the forum can help me adding some feature to the aquaboy delay from mad bean pedals.
here you can find the project

http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&ved=0CEIQFjAC&url=http%3A%2F%2Fjuansolo.demon.co.uk%2Fstompage%2Fschematics%2FMadbean%2FAquaboy2012.pdf&ei=SpqaUImEA-3S4QTP_oD4Aw&usg=AFQjCNEv7gx1TZQrusZu14DoyRBqT_z9hQ&sig2=VRZlvJAMPh_sNvFavNbblg

In my opinion this delay sound very good, I can build it with 2 mn3008 and power it with the 15v psu of my Motm modular synth so it's perfect!!!!
I would like to add this features:
-CV on delaytime, feedback and dry/wet.
-1 dry/wet out + 1 wet out
Hope someone help me with this! will be nice to have finally a bbd delay for motm too
Thanks
Alex

Last edited by axl on Thu Nov 08, 2012 4:54 pm; edited 1 time in total
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elmegil



Joined: Mar 20, 2012
Posts: 2177
Location: Chicago
Audio files: 16

PostPosted: Wed Nov 07, 2012 12:16 pm    Post subject: Reply with quote  Mark this post and the followings unread

It doesn't have CV of the mix (dry/wet), nor just wet out, but would you consider the Blacet Time Machine? Synthcube was selling complete kits with all the necessary parts, and I think he still has some available.... Not sure if it would be in your budget, and the schematics and such are not publicly available so you can't just perfboard/stripboard your own. But it does have the CV for the delay time and feedback already built in. I just finished my build of one and I like it a lot.

It would probably be very easy to add just the wet out, there is some open space on the panel so you could mod it. The mix would be harder, currently that's a 50K pot with the wiper grounded, positioned between the two.
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axl



Joined: Oct 28, 2012
Posts: 33
Location: ita

PostPosted: Wed Nov 07, 2012 12:36 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hi elmegill,
I think it's too expensive for me.......
And don't have input into the fbk......

I found this project too
http://hem.bredband.net/bersyn/VCF/vcd.htm

It have some of the feature i need like cv on feedback and delay time but runs on 9v with low current bbd........and there is no schematics of these.....
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elmegil



Joined: Mar 20, 2012
Posts: 2177
Location: Chicago
Audio files: 16

PostPosted: Wed Nov 07, 2012 1:23 pm    Post subject: Reply with quote  Mark this post and the followings unread

Not sure what you mean by input into the feedback.... Curious what you mean and what that would be used for?
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axl



Joined: Oct 28, 2012
Posts: 33
Location: ita

PostPosted: Wed Nov 07, 2012 3:17 pm    Post subject: Reply with quote  Mark this post and the followings unread

Sorry I figured out is nonsense!
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