vc wave select

[tomg]

> >There were low-pass filters before the Moog made his ladder. I
> >guess we're all thankful he built his 16 transistor monster I'm
> >sure there were others that were easier to build maybe even "easier to
make a >board layout for". duh!
> 
> Thats not a proper analogy! Digital control stuff doesn't get more
interesting just because you do it with six ICs instead of one. It won't
sound better, because it doesn't make sounds. It just gets more tedious.
Why do you even bother with this? It's just misleading people into wasting
their time. I do agree that the waveform selector version could have some
merit, but the ADC-version is really a joke.
> Go ahead designing a board layout for it. Then you might realize that
even the waveform selector probably isn't worth the trouble. Been there --
done that. Combining different waveforms from the same oscillator sounds
rather dull. 
> 
> /Jorgen
> 
> P.S. The Moog ladder is actually quite nice to do a board layout for. I'm
>currently working on just that.

Sure it is. I admit I'm not Dr. Moog. But I think I built a better flash
converter (fc). I tried to use the paia fc but it has it's problems. Like 
it's linear and runs on +15V.

There is another version floating around by B.P. Vandenburg that uses (7)
ca3130s a bunch of precision resistors and a log scale that works well 
and runs off +5V so it can speak directly to the digital world. 

I'm not misleading people into wasting their time. This is a good design
that deserves consideration. There are only 5 resistors and they are not
critical. I admit the pc board won't be a lot fun, but not really that much
of a problem.

The cost is way low 3915's are under $3 in places 7430s are around 
$0.25 That makes the whole thing cost about $5. CA3130s are $1.30 each 
thats over $9. and you still need all those precision resistors pushing it
to $10-12 or twice the price.

I take it from your comments and criticism that you have nothing in your
setup that has a +5 supply, has jumpers, or doublesided boards as you 
consider these to be "bad designs". Certainly nothing that mixes waves
from the same oscillator like the P5, JP, MS...ect as that is useless.

-tg