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Subject: Re: [ModularSynthPanels] Re: Living VCO panels? FPE templates?

From: kendall.jackman@...
Date: 2010-12-19

I appreciate the thorough discussion of all the layout options of this module. I have 2 PCBs to build and I'm still considering how to lay out the front panel. I'm going for 5U Moog format with regular-sized knobs, so it'll probably be quite wide. No layout file yet, though.

Sent from my Verizon Wireless BlackBerry


From: "djbrow54" <davebr@...>
Sender: ModularSynthPanels@yahoogroups.com
Date: Sun, 19 Dec 2010 17:30:41 -0000
To: <ModularSynthPanels@yahoogroups.com>
ReplyTo: ModularSynthPanels@yahoogroups.com
Subject: [ModularSynthPanels] Re: Living VCO panels? FPE templates?

 



I wanted to be able to use all three oscillators independently so I chose which controls and which inputs should affect all or be independent per VCO. I chose PWM and Width to affect all three VCOs to minimize panel space. The width control and PWM inputs are simply paralleled to each VCO.

I chose 1V/Oct and FM to be affect each VCO independently but normallized the input jacks so they could affect all three together. I also eliminated Detune for VCO1.

Since the input modulation of vibrato and portamento can be bypassed for VCO2 and VCO3 through their separate 1V/Oct input, I needed to make sure the gain through the modulation circuitry was 1X, so I used 0.1% resistors for U11B and U12A

I did add a mix output and independent level controls for each VCO. I use that feature a lot.

The wiring diagram is shown on my page as well as the details of my modifications. I remember the link/track conversation but am thinking that was for the Polymoog Resonator module. I don't exactly recall now.

Dave

--- In ModularSynthPanels@yahoogroups.com, "wjhall11" <wjhall@...> wrote:
> Dave's design is far more pragmatic. I'm sure the course / fine
> tune knobs idea is as good if not better than the counting dial
> idea. The small knobs make the gadget fit into less space.
> Dave's panel reflects a link-unlink feature he's calling
> "track," (right, Dave?) but there's an issue about how the PWM CV
> links to the VCOs that I'd have to re-look at to understand how
> Dave's implementation handles it - Idunno - our aim was to be able
> to use each VCO completely independently.
>
> Bill (and Will)