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[[File:cgs_photo_cgs67_rrm2.jpg|thumb|center|600px|]]
'''CGS67''' the '''CGS active real ring modulator''' is an updated version of the popular
Four quadrant multipliers have more or less replaced ring modulators in synthesizers, even though they still bear the label "ring modulator". The distortion in these is lower than that of a true diode ring modulator, because the diode voltage drops have been eliminated. This leads to better specifications, though in a noise maker, this is not always desirable.
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* The transformers I use are "M 0222" 3k-3kCT coupling transformers from www.altronics.com.au. Other transformers will work in this circuit. You will want transformers with an impedance equal to or higher than these.
* PCB 1" x 6" with four 3mm mounting holes 0.15" in from the edges.
== CC-BY-NC ==
Readers are permitted to construct these circuits for their own personal use only. Ken Stone retains all rights to his work.
== See also ==
* [[CGS real ring modulator]]
* [[CatGirl_Synth#The_CGS_modules|The CGS modules]]
* [[CGS parts FAQ]]
== References ==
* ''[https://web.archive.org/web/
== External links ==
* [http://bompiler.com/pcb/cgs67 CGS67 BOM] at BOMpiler
=== Suppliers ===
* [https://web.archive.org/web/20190502005352/http://www.elby-designs.com/webtek/cgs/cgs67/cgs67_rrm2.html CGS67 Active Real Ring Modulator], revision 1.1, Elby Designs
[[Category:CGS
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