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 Forum index » DIY Hardware and Software » Ken Stone designs - CGS
CGS735 Synthacon filter in Dotcom format?
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davep



Joined: Jul 05, 2004
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Location: Oakland, CA
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PostPosted: Sun Jan 03, 2010 3:38 pm    Post subject: CGS735 Synthacon filter in Dotcom format? Reply with quote  Mark this post and the followings unread

hi all,

I have a large Dotcom format modular synth and I'm interested in getting a Synthacon filter module, especially one that has the "All In" input in addition to the LP/BP/HP inputs. Like this one, but in a Dotcom format:

http://www.analoguehaven.com/elbydesigns/cgs735/

Anybody know where I could find one? Or where I could buy a Dotcom Synthacon filter panel so I can convert the module in the link to a Dotcom panel version? I have lots of electronic kit building experience but I have no experience making a custom metal panel from scratch so I'd rather just buy a complete module, or buy a complete Dotcom-format panel and graft the eurorack module onto it.

I also found this link, where it looks like someone may have done this euro-to-Dotcom conversion already. Anybody know about this?

http://www.guitarfool.com/modules/images/Synthacon01.jpg

Thanks!

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fluxmonkey



Joined: Jun 24, 2005
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Location: cleve

PostPosted: Sun Jan 03, 2010 7:54 pm    Post subject: Reply with quote  Mark this post and the followings unread

i'm not 100% sure, but i believe the "all in" jack is just normalled to the LP/BP/HP ins via switching jacks (the All In signal goes to the individual ins, except when a jack is plugged into one of the ins, in which case it takes precedence).

Front Panel Designer is easy to use, tho the panels are not that cheap... check the ModularSynthPanels yahoo group for design examples, i usually start with one of those and modify it.

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nerdware



Joined: Jul 11, 2009
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PostPosted: Mon Jan 04, 2010 3:48 am    Post subject: Reply with quote  Mark this post and the followings unread

If you don't mind a deviation from the Moog look, the Curetronic C303 can be used in your system if you also get the power adaptor. No DIY needed, unless the appearance really matters to you.

I don't know about the Elby Designs version of the CGS 35, but the schematic doesn't show an all input. The text implies that you can just feed all 3 audio inputs with the same signal, so I assume this what the "All in" socket does.

The Yusynth Steiner filter has a switch for input. There's also a silkscreen for a Moog-style panel.

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davep



Joined: Jul 05, 2004
Posts: 467
Location: Oakland, CA
Audio files: 10
G2 patch files: 73

PostPosted: Mon Jan 04, 2010 9:19 am    Post subject: Reply with quote  Mark this post and the followings unread

Thanks for the tips! I checked into the Curetronic module but they had no US distributor and their EU distributor charged crazy amounts for shipping, doubling the cost of the module. But that was quite a while ago so I should check again. I'll look into the Yahoo group too, thanks! And the switching jacks for the "all in" makes sense, so I could easily add this feature to a module that didn't have it.
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