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Possibility of using an A-110 VCO as an LFO?

2013-09-30 by blair_cowan@mac.com

Hi,

this is probably a simple question, but can I use one of my A-110 VCOs as an LFO, when I do not need it to function as a VCO? I think the frequency range goes low enough, and the option of 4 different waveforms (one of them pulse modulated!) suggests that it would make an interesting modulation source for lower frequencies.

Thanks,

Blair

AW: [Doepfer_a100] Possibility of using an A-110 VCO as an LFO?

2013-09-30 by yahoo@doepfer.de

> Hi,
>
>
> this is probably a simple question, but can I use one of my A-110
> VCOs as an LFO, when I do not need it to function as a VCO? I
> think the frequency range goes low enough, and the option of 4
> different waveforms (one of them pulse modulated!) suggests that
> it would make an interesting modulation source for lower frequencies.
>
>
> Thanks,
>
>
> Blair

This will work with all waveforms except the sawtooth because the sawtooth
is AC coupled (via the 10uF capacitor C7). If you short C7 you will obtain a
0..+10V DC coupled sawtooth (with C7 it's -5V...+5V AC coupled).

Best wishes
Dieter Doepfer

RE: AW: [Doepfer_a100] Possibility of using an A-110 VCO as an LFO?

2013-09-30 by blair_cowan@mac.com

Dieter,

thank you for your quick reply. I am not planning to modify my the A-110. Instead. I will make sure I don't select the sawtooth waveform when using the A-110 in LFO mode.

Best wishes,

Blair

---In Doepfer_a100@yahoogroups.com, <doepfer_a100@yahoogroups.com> wrote:

Show quoted textHide quoted text

> Hi,
>
>
> this is probably a simple question, but can I use one of my A-110
> VCOs as an LFO, when I do not need it to function as a VCO? I
> think the frequency range goes low enough, and the option of 4
> different waveforms (one of them pulse modulated!) suggests that
> it would make an interesting modulation source for lower frequencies.
>
>
> Thanks,
>
>
> Blair

This will work with all waveforms except the sawtooth because the sawtooth
is AC coupled (via the 10uF capacitor C7). If you short C7 you will obtain a
0..+10V DC coupled sawtooth (with C7 it's -5V...+5V AC coupled).

Best wishes
Dieter Doepfer

RE: AW: [Doepfer_a100] Possibility of using an A-110 VCO as an LFO?

2013-09-30 by blair_cowan@mac.com

Deiter,

thanks for your quick reply. I am not planning to modify my the A-110, so instead I will make sure I don't select the sawtooth waveform when using the A-110 in LFO mode.

Best wishes,

Blair

---In Doepfer_a100@yahoogroups.com, <doepfer_a100@yahoogroups.com> wrote:

Show quoted textHide quoted text

> Hi,
>
>
> this is probably a simple question, but can I use one of my A-110
> VCOs as an LFO, when I do not need it to function as a VCO? I
> think the frequency range goes low enough, and the option of 4
> different waveforms (one of them pulse modulated!) suggests that
> it would make an interesting modulation source for lower frequencies.
>
>
> Thanks,
>
>
> Blair

AW: AW: [Doepfer_a100] Possibility of using an A-110 VCO as an LFO?

2013-09-30 by yahoo@doepfer.de

> Dieter,
> 
> thank you for your quick reply. I am not planning to modify my 
> the A-110. Instead. I will make sure I don't select the sawtooth 
> waveform when using the A-110 in LFO mode.
> 
> Best wishes,
> 
> Blair

You may use the saw for LFO applications (nothing can be damaged), but you will not obtain a usual saw but kind of a "high-passed" saw. The rising edge will remain the same but the linear slope will become the shape of a discharging capacitor. The lower the frequency the less perfect the saw shape will become.

Best wishes
Dieter Doepfer