[sdiy] My first failure (4069 VCO)!

[Scott Stites]

Hi Charles,

Yep, those will work for the orientation Rene has.  I imagine the other
Scott's solution is the one, though sometimes a very slow VCLFO can be fun
(but only whales can hear'em) =-).

Cheers,
Scott

----- Original Message -----
From: "Charles Brodeur" <orange_juice_man_returns at yahoo.com>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Thursday, December 11, 2003 6:14 PM
Subject: Re: [sdiy] My first failure (4069 VCO)!


> Hi Scott,
>  I think I used the right transistors, they are BCxxx type. Is that
> european numbering? I ordered them from mouser. But thanks for the
> info.
>
> -Charles Brodeur
>
> --- Scott Stites <scottnoanh at peoplepc.com> wrote:
> > Hi Charles,
> > A friend of mine had a similar experience.  Be advised that the
> > transistors
> > that Rene has in his layout are European transistors, which have the
> > collector and emitter reversed to American transistors.  If you used
> > 2N39XX
> > transistors, and didn't reverse them to begin with, that's the
> > problem (it
> > was for my friend).
> >
> > Hope that helps,
> > Cheers,
> > Scott
> >
> >
> > ----- Original Message -----
> > From: "Charles Brodeur" <orange_juice_man_returns at yahoo.com>
> > To: <synth-diy at dropmix.xs4all.nl>
> > Sent: Thursday, December 11, 2003 3:36 PM
> > Subject: [sdiy] My first failure (4069 VCO)!
> >
> >
> > > Hi all,
> > >  Today I tired to build the 4069 based VCO, and it did not go well.
> > > After hours of soldering, I powered it up and got nothing on the
> > > outputs. I'm going to try to figure out what's wrong, but not
> > today, I
> > > need a break. Could it be that the capaciters I used are
> > electrolytic?
> > > I'll post pictures up at a later date, so say tuned. Thanks for
> > > reading!
> > >
> > > -Charles
> > >
> > > __________________________________
> > > Do you Yahoo!?
> > > New Yahoo! Photos - easier uploading and sharing.
> > > http://photos.yahoo.com/
> > >
> >
>
>
> __________________________________
> Do you Yahoo!?
> New Yahoo! Photos - easier uploading and sharing.
> http://photos.yahoo.com/
>