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 Forum index » DIY Hardware and Software » Jürgen Haible designs
MN3005 instead of MN3007 in Subtle Chorus
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dingebre



Joined: Aug 10, 2008
Posts: 269
Location: Salt Lake City, UT USA

PostPosted: Sun Apr 05, 2009 1:17 pm    Post subject: MN3005 instead of MN3007 in Subtle Chorus Reply with quote  Mark this post and the followings unread

Is there any utility in using MN3005's instead of MN3007's in the Subtle Chorus? While the packaging is different, I'm not adverse to adapting the MN3005 to fit. If I understand the data sheets (big assumption here) they are compatible and electrically swappable in a circuit with the difference being the delay.

Thoughts?

David

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David M. Ingebretsen, M.S., M.E.
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2thick4uni



Joined: Feb 20, 2009
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PostPosted: Sun Apr 05, 2009 2:44 pm    Post subject: Reply with quote  Mark this post and the followings unread

IMHO I can't see it being much use as chorus effect relies on a short delay time - assuming same clock speed the MN3005 would increase delay time by a factor of four as it is 4096 stage against 1024 stages for the MN3007. I think you'd loose the chorus effect and have a very short slap back echo instead?
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dingebre



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PostPosted: Sun Apr 05, 2009 3:10 pm    Post subject: Reply with quote  Mark this post and the followings unread

Interesting. Thanks for the explanation. Looks like I need to find a different use for the MN3005's.

David

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David M. Ingebretsen, M.S., M.E.
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jhaible



Joined: May 25, 2007
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PostPosted: Mon Apr 06, 2009 1:21 pm    Post subject: Re: MN3005 instead of MN3007 in Subtle Chorus Reply with quote  Mark this post and the followings unread

dingebre wrote:
Is there any utility in using MN3005's instead of MN3007's in the Subtle Chorus? While the packaging is different, I'm not adverse to adapting the MN3005 to fit. If I understand the data sheets (big assumption here) they are compatible and electrically swappable in a circuit with the difference being the delay.

Thoughts?

David


More latency, higher distortion, more noise, too high a modulation index.

JH.

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"I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." (Mk 11,23f)
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dingebre



Joined: Aug 10, 2008
Posts: 269
Location: Salt Lake City, UT USA

PostPosted: Mon Apr 06, 2009 2:16 pm    Post subject: Re: MN3005 instead of MN3007 in Subtle Chorus Reply with quote  Mark this post and the followings unread

jhaible wrote:
dingebre wrote:
Is there any utility in using MN3005's instead of MN3007's in the Subtle Chorus? While the packaging is different, I'm not adverse to adapting the MN3005 to fit. If I understand the data sheets (big assumption here) they are compatible and electrically swappable in a circuit with the difference being the delay.

Thoughts?

David


More latency, higher distortion, more noise, too high a modulation index.

JH.


Well... there you go. Off to look for another use. The datasheet has an interesting echo/reverb circuit. I might give that a go...

Thanks JH.

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David M. Ingebretsen, M.S., M.E.
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StephenGiles



Joined: Apr 17, 2006
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PostPosted: Tue Apr 07, 2009 10:52 am    Post subject: Reply with quote  Mark this post and the followings unread

But with a turbo buffered clock running at 5Mhz maybe good chorus with an MN 3005 Rolling Eyes
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2thick4uni



Joined: Feb 20, 2009
Posts: 113
Location: UK

PostPosted: Wed Apr 08, 2009 10:52 am    Post subject: Reply with quote  Mark this post and the followings unread

Quote:
But with a turbo buffered clock running at 5Mhz maybe good chorus with an MN 3005


Datasheet quotes clock frequency as 40khz, I'm intrigued to know how you could get this up to 5mhz.................
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