[sdiy] My first failure (4069 VCO)!

[Charles Brodeur]

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
> >
> > __________________________________
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> 


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