Wiardgroup

The #1 wogglebug involved a modified 2-stroke
snowmobile engine - very noisy.

--- "Fahl, Romeo" <rfahl@extensis.com> wrote:

> Having built a couple, I can say that if you're
> patient enough to roll
> your own, the #3 Wogglebug is definitely worth the
> effort. 
> 
> R. 
> 
> > -----Original Message-----
> > From: drmabuce [mailto:drmabuce@yahoo.com] 
> > Sent: Monday, December 13, 2004 8:37 PM
> > To: wiardgroup@yahoogroups.com
> > Subject: [wiardgroup] Re: this is for grant i
> guess
> > 
> > 
> > 
> > Hi Dustin
> >       I've never disassembled my production
> wogglebugs for a 
> > component by component comparison  but I was in
> close contact 
> > with Grant during the development of the circuit
> in the 
> > summer of 2001.  To my knowledge, there were six
> prototypes. 
> > #5 was the production model ***.  I've built
> several #3's  
> > and modified them to my taste.
> > Schematics of my favorite mods  are in the files
> section of this group
> > labelled: WBug3Mods-DrMabuce.jpg.
> >      To address your question more directly. The
> core of the 
> > wogglebug is the 4046-pair , the 398 sample-hold
> and the 
> > vactrol.VC1 -  the evolution of the woggle bug
> circuit after 
> > #3 tended to be progressive refinements of  the
> voltage 
> > controlled clock (U5 & VC2)  that triggered the
> 398 and the 
> > circuit that controlled the LED portion of the
> vactrol, VC1.
> >      In the #3 circuit VC1 and a second vactro.l,
> VC2 are 
> > controlled, together, in series by a single CV. To
> my 
> > (deranged) ear , the option of controlling VC1 and
> the 
> > clock-rate VC2 separately yields a lot more
> interest . 
> >      Also I imagine that Grant would have been
> inclined to 
> > improve the transistor-based circuit (Q1) that
> controlled 
> > VC1--- probably with a op-amp CV buffer.
> > 
> > I realize this response id far from definitive,
> but on the 
> > whole I believe that Grant published the essence
> of the 
> > wogglebug  in the #3 schematic - an almost
> insanely generous act IMHO.
> > 
> > melt some solder and try it!
> > -doc
> > 
> > ***
> > the #6 schematic included an ill-fated
> implementation of the 
> > MF-10 one-chip programmable filter that was too
> outrageously 
> > noisy for a commercial design - I added one to my
> production 
> > board just to find out!
> > `a bridge too far!'
> > 
> > 
> > 
> > --- In wiardgroup@yahoogroups.com, "ed.j.wise"
> <dustin.sedlacek@g...>
> > wrote:
> > > 
> > > or anyone else that knows how is the wogglebug#3
> schematic 
> > that i have 
> > > found  diffrent from the production model
> wogglebug that is sold on 
> > > the web site?
> > 
> > 
> > 
> > 
> > 
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>
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> > 
> > 
> > 
> >  
> > 
> > 
> > 
> > 
> 

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