Archive of the former Yahoo!Groups mailing list: Modular Synth Panels

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Subject: Re: [ModularSynthPanels] Re: Wogglebug #3 (3rd Board run arrived)

From: Richard Brewster <pugix@...>
Date: 2008-03-03

I uploaded a FPD file called standard-woggle.fpd in the Richard Brewster
Designs folder. This is how I might build it. I did not include a
CLOCK IN jack, because I don't think it's very useful. The internal
clock is rate-correlated with the low pass filter of the smooth
section. This correlation is essential to the smooth section. Using an
external clock doesn't add a lot to this version of the Wogglebug,
because there is only one sample and hold. The Wiard Wogglebug has two
sample and holds per section, and the clock input is used for the second
S&H, not the one correlated with the smooth function.

http://www.wiard.com/modular/Woggle/265block.jpg

My breadboarded Wogglebug is more or less based on that diagram.

http://www.pugix.com/wogglebug.htm

There are many variations a Wogglebug could be built. The PC board
we're talking about here is a simple version. Simple is good! I didn't
put a clock LED on the panel design because it would take additional
circuitry and because I already have too many blinkin' lights on my modular!

Richard Brewster
http://www.pugix.com

djbrow54 wrote:
> I'm thinking of getting one of the PCBs so I played around with a 2U
> MOTM style panel. The design is in my folder:
>
> Files > DJB designs > Wogglebug.fpd
>
> I'm not sure of the exact control and output functionality. I tried
> to group some of the outputs and added a RATE LED. I'd appreciate
> feedback on the outputs and controls if I got them right.
>
> Dave
>