CGS CV cluster: Difference between revisions

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Revision as of 22:15, 16 December 2018 (view source) Rob Kam (talk \| contribs) (Created page with "thumb\|center\|600px\| '''CGS37''' the '''CGS CV cluster''' (v1.1) is an unusual kind of mixer. It takes two input voltages - a base c...")		Latest revision as of 14:50, 19 July 2022 (view source) Rob Kam (talk \| contribs) m (Text replacement - " - archived" to " - archived") Tag: Manual revert
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Line 1: [[File:cgs_photo_cgs37v11_cv_cluster.jpg\|thumb\|center\|600px\|]] '''CGS37''' the '''CGS CV cluster''' (v1.1) is an unusual kind of mixer. It takes two input voltages - a base control voltage, and a modulating control voltage, and creates the sum and differences of them. These different voltages are the base voltage offset in a positive direction by the modulating voltage and the base voltage offset in a negative direction by the modulating voltage. A series of equal taps between these two points results in outputs that always maintain the base control voltage at its full amplitude, mixed with a differing amount of the modulating voltage. The center output has equal amounts of positive and negative modulation ~~canceling~~cancelling each other out, and thus behaves as a straight-through connection for the base input. While untested, the module should work on +/-12 volts. Line 73: ! colspan="2" align=center\|Misc \|- \| Ferrite ~~Bead~~bead (or 10R resistor)\|\|align=right\|2 \|- \| 0.156 4 pin connector\|\|align=right\|1 Line 83: * A 10 to 22 ohm resistor can be used instead of the ferrite beads. If you don't care about power-rail noise, just use a link instead. * PCB is 6" x 1" with 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 == Line 90 ⟶ 93: == References == ''[https://web.archive.org/web/~~20180209234737fw_~~20180209234737f/http://www.CGS.synth.net:80/modules/CGS37_cv_cluster.html CV Cluster for music synthesizers.]'' ~~(archived)~~ by Ken Stone, 2001, with permission of the author - archived == External links == * [http://bompiler.com/pcb/cgs37 CGS37 v1.1 BOM] at BOMpiler * [http://groups.yahoo.com/group/CGS_synth CGS Synth discussion group], for discussion of locating parts, modifications and corrections etc. === Suppliers === * [https://web.archive.org/web/20180329091047/http://www.elby-designs.com/webtek/~~CGS~~cgs/~~CGS37~~cgs37/~~CGS37_cv_cluster~~cgs37_cv_cluster.html CGS37 CV Cluster], revision 1.1, Elby Designs [[Category:CGS ~~modular~~CV processors]]