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Re: VCO 4 as alternative modulation source for the modwheel -filter cross modulation

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  • iluvator
    Hello, any information-schematics-documentation on this modification (VCO 4 as alternative modulation source for the modwheel -filter cross modulation)?
    Message 1 of 10 , Dec 9, 2012
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      Hello, any information-schematics-documentation on this modification (VCO 4 as alternative modulation source for the modwheel -filter cross modulation)? Please Florian, share with us, this is probably the mod I was dreaming of for my mono/poly.

      --- In korg_mono-poly@yahoogroups.com, "dir_marillion" <dir_marillion@...> wrote:
      >
      >
      >
      > --- In korg_mono-poly@yahoogroups.com, "iscrites" <i.scrites@> wrote:
      > >
      > > I would also be interested in doying this mod.
      > >
      > > Also is there a way to add a random mode to the Arpegiator ??
      > >
      > > > > Hello,
      > > > > I just read on http://fa.utfs.org/diy/korg_monopoly/modifications.html about a modification "VCO 4 as alternative modulation source for the modwheel (filter cross modulation)"
      > > > >
      > > > > Do you have any more info about this ?
      > >
      >
      > It seems a very interesting mod
      >
    • Florian Anwander
      ... I am sorry, but I have not time for things like that at the moment. I will do that somewhen next year Florian
      Message 2 of 10 , Dec 10, 2012
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        Am 10.12.2012 08:39, schrieb iluvator:
        > Hello, any information-schematics-documentation on this modification
        > (VCO 4 as alternative modulation source for the modwheel -filter
        > cross modulation)? Please Florian, share with us, this is probably
        > the mod I was dreaming of for my mono/poly.

        I am sorry, but I have not time for things like that at the moment.

        I will do that somewhen next year

        Florian
      • dir_marillion
        ... Florian, are you sure that this kind of modification exists and it is not an opened project ? I am asking you because I have searched a lot of Mono/Poly
        Message 3 of 10 , Dec 11, 2012
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          --- In korg_mono-poly@yahoogroups.com, Florian Anwander <fanwander@...> wrote:
          >
          > Am 10.12.2012 08:39, schrieb iluvator:
          > > Hello, any information-schematics-documentation on this modification
          > > (VCO 4 as alternative modulation source for the modwheel -filter
          > > cross modulation)? Please Florian, share with us, this is probably
          > > the mod I was dreaming of for my mono/poly.
          >
          > I am sorry, but I have not time for things like that at the moment.
          >
          > I will do that somewhen next year
          >
          > Florian
          >

          Florian, are you sure that this kind of modification exists and it is not an opened project ?

          I am asking you because I have searched a lot of Mono/Poly relative documents and never found something like that.
        • Florian Anwander
          Hello ... It works in my MP. It is basically simple: insert a two position switch in the line between MG1 and Modwheel and connect the output of VCO4 (pre
          Message 4 of 10 , Dec 12, 2012
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            Hello

            On 11.12.12 21:36 , dir_marillion wrote:
            > Florian, are you sure that this kind of modification exists and it is not an opened project ?
            It works in my MP. It is basically simple:
            insert a two position switch in the line between MG1 and Modwheel and
            connect the output of VCO4 (pre level 4) to the other pole of the switch.

            Florian
          • Alan Dicker
            This mod really isn t to hard to figure out for your self. I used VCO as my source as I think it s a better option as it has more interdependent controls. I
            Message 5 of 10 , Dec 12, 2012
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              This mod really isn't to hard to figure out for your self.
              I used VCO as my source as I think it's a better option as it has more interdependent controls.
              I tapped the VCO 1 single pre gate but post wave form and placed a switch and potentiometer in the circuit to mix the level in to the MG1 signal rather than replace them.  This was a very basic goriller implementation but gives good results.  I'm currently working on an upgrade of this where the signal will be buffered and so no need for the switch.  I'm also planning on adding noise as the MG1 shape and S/H.  Also there will be a ringmodulator and this should all be implemented on the same board which if all goes well I will then sell in kit form.  It's a few months away yet.  Still working in LTspice before ordering materials and building the proto-type strip board for testing.  Then I'll be finalizing a PCB design and having a small run made up.


              From: dir_marillion <dir_marillion@...>
              To: korg_mono-poly@yahoogroups.com
              Sent: Tuesday, 11 December 2012, 20:36
              Subject: [korg_mono-poly] Re: VCO 4 as alternative modulation source for the modwheel -filter cross modulation

               


              --- In korg_mono-poly@yahoogroups.com, Florian Anwander <fanwander@...> wrote:
              >
              > Am 10.12.2012 08:39, schrieb iluvator:
              > > Hello, any information-schematics-documentation on this modification
              > > (VCO 4 as alternative modulation source for the modwheel -filter
              > > cross modulation)? Please Florian, share with us, this is probably
              > > the mod I was dreaming of for my mono/poly.
              >
              > I am sorry, but I have not time for things like that at the moment.
              >
              > I will do that somewhen next year
              >
              > Florian
              >

              Florian, are you sure that this kind of modification exists and it is not an opened project ?

              I am asking you because I have searched a lot of Mono/Poly relative documents and never found something like that.



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