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 Forum index » DIY Hardware and Software » YuSynth
Balanced Modulator troubles
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vcfool



Joined: Jun 19, 2008
Posts: 23
Location: Barcelona

PostPosted: Thu Mar 01, 2012 6:45 pm    Post subject: Reply with quote  Mark this post and the followings unread

After some afternoon testing, I finally had to install the input resistors. Looks like the AC coupling caps would not discharge without those, and the AC mode wasn't working correctly.
I've attached a schematic of what I finally did to my inputs. Is this looking good? Sorry for my lack of electronics knowledge.

Thanks again!


Modulator_inputs.png
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YuSynth Balanced Modulator Input Mod
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Modulator_inputs.png


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Jaba



Joined: Feb 27, 2009
Posts: 47
Location: Genova, Italy

PostPosted: Fri Mar 02, 2012 2:42 am    Post subject: Reply with quote  Mark this post and the followings unread

Hi vcfool,

yes, AFAIK your schematic is very good, and it works perfectly.

It actually is the same circuit I was suggesting as "option 1" in my message dated June 21st, 2011; no wonder we came to the same solution, I would say it's a standard one

Sorry for not answering sooner, but it's good to see that you found the correct answers on your own.

Jaba(Paolo)
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vcfool



Joined: Jun 19, 2008
Posts: 23
Location: Barcelona

PostPosted: Fri Mar 02, 2012 7:07 am    Post subject: Reply with quote  Mark this post and the followings unread

Great!
Thanks once more for the answer and the improving modification.
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