Oops, I replied to this in almost exactly the same way. Except that
Larry says it better...
--- In motm@yahoogroups.com, Larry David <ldavid777@s...> wrote:
>
> On Aug 18, 2005, at 11:52 AM, paulhaneberg wrote:
>
> > I have to admit I'm somewhat bewildered by this discussion.
> > Most resistors in MOTM modules have a tolerance of 5%. For
> > capacitors, the tolerance is 10% or higher. The effect of
> > inductance and capacitance generated by the lead wires inside IC
> > chips is infinitesimal in comparison to the variations due to
> > tolerance.
>
> I was asking more about the physics of the silicon junctions - pn and
> np and all that - if they are physically smaller on SMT chips than on
> older through-hole ICs or DIPs or whatever they are called. And if
> they are smaller - or different in some other way - whether that would
> affect how they sound in EM ckts. Whether this would cause better
> tolerances and thus less variation, for example. As I think I said in
> another post, these effects, if they exist at all, would probably be
> more noticeable in custom synth-on-a-chip ICs like on the Andromeda -
> and not in an MOTM module that has some SMT ICs on a board full of
> discrete Rs and Cs.
>
> > If you make a sound with two VCOs they will both have slightly
> > different characteristics. This is part of what makes them sound
> > analog. If they sounded the same you would say it sounded Digital.
>
> Exactly. My question was about whether SMT IC components would sound
> more "digital" in this sense than discrete components. Intuitively it
> seems so, but I was asking the real engineers for the lowdown.
>
> >
> > My 2 cents.
> >
> > Paul Haneberg
> >
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> > Yahoo! Groups Links
> >
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> >