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 Forum index » DIY Hardware and Software » YuSynth
VCA resistor question
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Sebo



Joined: Apr 27, 2007
Posts: 564
Location: Argentina

PostPosted: Sun Dec 14, 2008 12:28 pm    Post subject: VCA resistor question Reply with quote  Mark this post and the followings unread

Hi Yves:
I´m building the VCA, and I bought the components according to the partlist.
When I started soldering I discovered that R7 is 680 ohms in both part layouts,
but is 1K in both the part list and in the schematic.
Which one I have to use?
Thank you.

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yusynth



Joined: Nov 24, 2005
Posts: 1314
Location: France

PostPosted: Sun Dec 14, 2008 2:19 pm    Post subject: Reply with quote  Mark this post and the followings unread

Well it depends on the input levels you are using. 680 ohm is fine for 10Vpp at the input, 1K is fine for 5Vpp at the input.
Personally I used 680 ohms.

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Last edited by yusynth on Wed Dec 17, 2008 5:31 am; edited 1 time in total
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Sebo



Joined: Apr 27, 2007
Posts: 564
Location: Argentina

PostPosted: Sun Dec 14, 2008 4:53 pm    Post subject: Reply with quote  Mark this post and the followings unread

I´m going to build mostly your modules to begin, and they are 10Vpp,
so I go for the 680 ohms then.
Thank you.

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