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 Forum index » DIY Hardware and Software » Developers' Corner
DIY VC Delay Circuit. Any Exist?
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inform3r



Joined: Sep 03, 2006
Posts: 59
Location: nyc

PostPosted: Wed Jun 10, 2009 11:02 pm    Post subject: DIY VC Delay Circuit. Any Exist? Reply with quote  Mark this post and the followings unread

I've searched the board high and low, but I didn't find anything.
I have a couple of those Panasonic "MN" series chips. I could probably rig up a very simple delay on my own, but I don't think I could implement VC in the circuit at this point. It also got me wondering... Why does it seem like there aren't many people doing this? I have a ton of tape and BBD delays but I would really love a simple VC unit to incorporate into my modular. Only other option is buying a Doepfer unit. Any tips?
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Coriolis



Joined: Apr 11, 2005
Posts: 616
Location: Stilling, Denmark

PostPosted: Thu Jun 11, 2009 12:25 am    Post subject: Reply with quote  Mark this post and the followings unread

Hi -

This:
http://home.comcast.net/~sbernardi/elec/og2/og3_echo.html

Is discussed here:
http://electro-music.com/forum/viewtopic.php?highlight=delay&t=13490

Built by a few people here I think.

C

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inform3r



Joined: Sep 03, 2006
Posts: 59
Location: nyc

PostPosted: Thu Jun 11, 2009 6:40 am    Post subject: Reply with quote  Mark this post and the followings unread

Ahh C! That's based on the PT chip. My understanding is that it's digital, no? I don't know much abut it so please correct me if I'm wrong.
Thomas Henry had the exact thing I'm after, released under the "Midwest" name but it used a SAD chip which is unobtanium now.
The only chips us analogue freaks are fortunately graced with are few and far between. I have some Panasonic MN chips as I stated earlier.
But I guess since BBD chips aren't very prevalent nobody bothered making a project for the DIY community? So failing that.. How do I add VC to a humdrum BBD circuit? Sorry, don't have any schms on hand.
The PT one is really cool and diverse but I'm a sucker for anything that has a little grit too it. PT is too clean for that purpose. May get it for something else down the road.

Coriolis wrote:
Hi -

This:
http://home.comcast.net/~sbernardi/elec/og2/og3_echo.html

Is discussed here:
http://electro-music.com/forum/viewtopic.php?highlight=delay&t=13490

Built by a few people here I think.

C
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Sebo



Joined: Apr 27, 2007
Posts: 534
Location: Argentina

PostPosted: Sat Jun 13, 2009 5:23 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hi:
Jörgen Bergfors has designed one under the AMORE project.
http://hem.bredband.net/bersyn/
I have plans to build one in the future, if you build it let me know how it works.

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