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 Forum index » DIY Hardware and Software » YuSynth
minimoog vcf input and output levels
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cloudberry



Joined: Jun 30, 2009
Posts: 51
Location: uk
PostPosted: Tue Aug 25, 2009 3:19 pm    Post subject: minimoog vcf input and output levels Reply with quote  Mark this post and the followings unread
Hi everyone.

I'm wondering if someone can help with adapting the input and output levels in the minimoog vcf. In the schematic, the feedback resistors R5 and R32 are marked as being adjustable for different levels. As I understand it, this design as is is designed for 10v pk to pk. What would the values be for -10 and +4dBu?

Thanks,


Cloudberry
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yusynth



Joined: Nov 24, 2005
Posts: 1314
Location: France
PostPosted: Wed Aug 26, 2009 7:24 am    Post subject: Reply with quote  Mark this post and the followings unread
make R32 = 56K
make R5 = 180K

I used this link http://www.sengpielaudio.com/calculator-db-volt.htm to calculate the values
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cloudberry



Joined: Jun 30, 2009
Posts: 51
Location: uk
PostPosted: Wed Aug 26, 2009 9:51 am    Post subject: Reply with quote  Mark this post and the followings unread
Many thanks.

The link looks extremely useful!
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Peake



Joined: Jun 29, 2007
Posts: 1113
Location: Loss Angeles
Audio files: 3
PostPosted: Tue Mar 15, 2011 1:20 pm    Post subject: Reply with quote  Mark this post and the followings unread
The math in that link is beyond me (unsurprisingly). I wish to use the clone with original signal levels (1V)...what might the final values be, please? Sorry for needing my hand held on this. Thanks for the projects!
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