CGS quad comparator and memory cell: Difference between revisions

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[[File:cgs_photo_pan121_mem5.jpg|thumb|center|900px|The left image shows the first 47k resistor soldered in. The right image shows the second 47k, and its insulated lead.]]
[[File:cgs_photo_pan121_mem6.jpg|thumb|center|900px|Blue jacks indicate an input that responds positively to an input, adding it to the tally for that channel. A different color jack, in this case green, indicate that an input responds negatively, subtracting the input voltage from the tally for that channel. As an individual may wish to use more or less of each type, the panel allows for some variation. A 100k resistor from the jack to the pad on the left side of the jack results in a positive response, a 100k resistor from the jack to the pad on the right results in a negative response.<br>The bottom-most jacks only have a pad for a negative response, while the top most jacks only have one for a positive response.]]
[[File:cgs_wire_pan121_mem1.jpg|thumb|center|900px|This diagram shows the hook-uphookup wire portion of the wiring for the CGS PCB panel PAN121V1.0. If you are not using PAN121V1.0, you will need to wire directly to the appropriate jacks and LEDs. You may choose to do so, even if using this panel.]]
[[File:cgs_wire_pan121_mem2.jpg|thumb|center|454px|For the remaining eight connections, hookup wire could be used. Alternatively a 0.1" spaced wiring strip would work. Although the wiring strip is shown connecting to the top of the CGS121 PCB, it may be easier to feed it through from the bottom and solder it on the top.]]
[[File:cgs_photo_pan121_mem7.jpg|thumb|center|682px|After soldering it on, the wiring strip needs to be folded away from the edge of the panel. This particular strip is a little too long.]]
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| Ferrite bead||align=right|2
|-
| Hook-upHookup wire
|-
| 8-pin ribbon cable jumper (1.5" to 2.0")||align=right|1
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| CGS121 VER1.0 PCB||align=right|1
|}
 
== 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 ==
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== References ==
* ''[https://web.archive.org/web/20180209234737f/http://www.CGS.synth.net:80/modules/CGS121_mem.html Quad Comparator and Memory Cell for music synthesizers.]'' (archived) by Ken Stone, 2013, with permission of the author - archived
 
== External links ==
* [http://bompiler.com/pcb/cgs121 CGS121 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/20180406103713/http://www.elby-designs.com/webtek/cgs/cgs121/cgs121_mem.html CGS121 Quad Comparator and Memory Cell], revision 1, Elby Designs
 
[[Category:CGS modularclock/gate/trigger processors]]