Difference between revisions of "CGS mixer and ETI 4600 VCA"

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[[File:cgs_panel_vca.jpg|thumb|right|102px]]
 
[[File:cgs_panel_vca.jpg|thumb|right|102px]]
[[File:cgs_vca.gif|thumb|left|102px|Panel artwork. Click through for larger version. Print at 200 DPI.]]
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[[File:cgs_panel_vca.gif|thumb|left|102px|Panel artwork. Click through for larger version. Print at 200 DPI.]]
The '''CGS mixer and VCA''' module is the combination of two sub modules, a mixer and a voltage controlled amplifier.
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The '''CGS mixer and ETI 4600 VCA''' module is the combination of two sub modules, a mixer and a voltage controlled amplifier.
   
For the construction details of the mixer, see the [[CGS DC mixer (previous version)]]. In this case, only two inputs are used, and there is no overal gain control. The output is fed both to the output socket and the switched input of the the VCA signal input (normalised connection).
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For the construction details of the mixer, see the [[CGS DC mixer (previous version)]]. In this case, only two inputs are used, and there is no overall gain control. The output is fed both to the output socket and the switched input of the VCA signal input (normalised connection).
   
 
The VCA itself is the VCA/Ring Modulator from the [[ETI International 4600|International 4600 (Maplin 4600)]].
 
The VCA itself is the VCA/Ring Modulator from the [[ETI International 4600|International 4600 (Maplin 4600)]].
   
 
Two have been constructed, and there is a third waiting for a panel. Two of these VCA boards were hand etched, and the third was one of the boards from the 3800.
 
Two have been constructed, and there is a third waiting for a panel. Two of these VCA boards were hand etched, and the third was one of the boards from the 3800.
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== CC-BY-NC ==
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Readers are permitted to construct these circuits for their own personal use only. Ken Stone retains all rights to his work.
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== See also ==
 
== See also ==
 
* [[CatGirl_Synth#The_CGS_modules|The CGS modules]]
 
* [[CatGirl_Synth#The_CGS_modules|The CGS modules]]
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== References ==
 
== References ==
''[https://web.archive.org/web/20030525111920fw_/http://www.cgs.synth.net/modules/vca.html VCA for music synthesizers.]'' (archived) by Ken Stone, 1999, with permission of the author
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''[https://web.archive.org/web/20030525111920f/http://www.cgs.synth.net/modules/vca.html VCA for music synthesizers.]'' (archived) by Ken Stone, 1999, with permission of the author
   
 
== External links ==
 
== External links ==
* [http://groups.yahoo.com/group/CGS_synth CGS Synth discussion group], for discussion of locating parts, modifications and corrections etc.
 
   
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[[Category:CGS modular]]
 
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[[Category:CGS modules from other sources]]

Latest revision as of 13:50, 28 January 2021

Cgs panel vca.jpg
Panel artwork. Click through for larger version. Print at 200 DPI.

The CGS mixer and ETI 4600 VCA module is the combination of two sub modules, a mixer and a voltage controlled amplifier.

For the construction details of the mixer, see the CGS DC mixer (previous version). In this case, only two inputs are used, and there is no overall gain control. The output is fed both to the output socket and the switched input of the VCA signal input (normalised connection).

The VCA itself is the VCA/Ring Modulator from the International 4600 (Maplin 4600).

Two have been constructed, and there is a third waiting for a panel. Two of these VCA boards were hand etched, and the third was one of the boards from the 3800.

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

References

VCA for music synthesizers. (archived) by Ken Stone, 1999, with permission of the author

External links