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 Forum index » DIY Hardware and Software » Ken Stone designs - CGS
Wave multipliers CGS113 (solved)
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Sparrows78



Joined: Aug 11, 2019
Posts: 2
Location: Sweden
PostPosted: Wed Sep 11, 2019 2:49 pm    Post subject: Wave multipliers CGS113 (solved)
Subject description: Faulty or normal behaviour?		 Reply with quote  Mark this post and the followings unread
Hi all!
I recently built the Serge wave multipliers using the CGS113 pcb v1.1. The lower section(rectifier) has very low output, significantly lower than the output straight out of my Oakley VCO. It is also very sensitive to audio input level, and cv input level. It seems to only work with very low level input signals without maxing out if that makes sense. Is this normal?
I’m using a LM13700 instead of the CA3080s and I’m also using all the stabilizing capacitors. The module is used in a system consisting mostly of Oakley modules running on +/-15v.
Last edited by Sparrows78 on Thu Sep 12, 2019 12:03 pm; edited 1 time in total
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Sparrows78



Joined: Aug 11, 2019
Posts: 2
Location: Sweden
PostPosted: Thu Sep 12, 2019 12:01 pm    Post subject: Reply with quote  Mark this post and the followings unread
My problem went away today after I mounted the module in the case, using the same psu as the other modules. Before that I used a separate lab psu, seems to be the problem!
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