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LetterBeacon
Joined: Mar 18, 2008 Posts: 454 Location: London, UK
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Posted: Thu Jul 02, 2009 11:28 am Post subject:
Minimoog Wiring |
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Just a quick and probably very simple one:
I can't see the 1V/Octave input jack on the schematic, I can see a third CV input though. Is the CV3 input jack the 1V/Octave input? Looking at the schematic it looks to be just the same as CV2... or maybe I'm misunderstanding what CV2 controls....
Sorry for the newbie post! |
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yusynth
Joined: Nov 24, 2005 Posts: 1314 Location: France
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Posted: Thu Jul 02, 2009 12:16 pm Post subject:
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It's the same thing, you can use either one or the other for 1V/octave or CV control. As you can see on the schematic the input resistors are all 100K therefore the CV inputs are all similar and exchangeable. _________________ Yves |
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LetterBeacon
Joined: Mar 18, 2008 Posts: 454 Location: London, UK
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Posted: Thu Jul 02, 2009 1:09 pm Post subject:
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It appears I have some sizeable gaps in my modular synth knowledge! As I understand it:
CV1 - controls the cutoff frequency of the filter
CV2 - the same as 1V/Oct
1V/Octave - controls the pitch of the sine wave generated by the emphasis
Is this correct? So what happens if I have CV connected to both CV2 & 1V/Oct?
Apologies for the rather basic questions.... |
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yusynth
Joined: Nov 24, 2005 Posts: 1314 Location: France
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Posted: Thu Jul 02, 2009 1:53 pm Post subject:
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CV1, CV2 and 1V/OCT inputs are all controlling the cut-off frequency of the filter. The voltages at these inputs are summed up and determine the cut-off.
Why do we have that much inputs doing basically the same thing ? It lets you have a keyboard CV connected to the V/OCT input, an ADSR to CV1 and for example a LFO connected to CV2. _________________ Yves |
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LetterBeacon
Joined: Mar 18, 2008 Posts: 454 Location: London, UK
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Posted: Thu Jul 02, 2009 3:25 pm Post subject:
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Right, I see. So if I had all three connected at the same time, I would get all sorts of weird modulation of the cutoff frequency?
It's all coming together in my head now! |
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yusynth
Joined: Nov 24, 2005 Posts: 1314 Location: France
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Posted: Fri Jul 03, 2009 3:57 am Post subject:
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LetterBeacon wrote: | Right, I see. So if I had all three connected at the same time, I would get all sorts of weird modulation of the cutoff frequency?
It's all coming together in my head now! |
It's just like the genuine Minimoog, the CUT-OFF is controlled by the keyboard (tracking), by the envelope generator and also by the modulation by VCO3. You can obtain either plain vanila or weird modulations. _________________ Yves |
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