[sdiy] NPO caps in P08 and Andromeda increases sales?

[karl dalen]

The P08 uses ceramic caps in the VCF and ceramic caps in the S/H.
The Andromeda does the same.

This design technique are somewhat breaking  the rules as to what
some of the long timers here use to say about wich type of caps
to use in a VCF, usually polypropylen or MKT.

I have played the Andromeda acouple of times but not the P08 and
personaly i didnt like the sound at all, there was something strange to it.

So, would the P08 and Andromeda sound different if one would change the
VCF caps and do you think it's (sound wise )a proper design modification?
(yes we all know why they used ceramics, so skip the manufacturing issues).

What would be interesting to know are how much better the specs are
nowdays on NPO etc caps compared to lets say some 5-6 years ago?

If your old enough you know of microphonics of ceramic caps so let's do
a wild speculation, by playing the Andromeda on its keyboard would those
tapping vibration transplant it's way into the ceramic caps and cause 
intermodulation distortion? :-)


--- Den ons 2008-12-10 skrev Paul Dickow <paul.dickow at gmail.com>:

> Från: Paul Dickow <paul.dickow at gmail.com>
> Ämne: Re: [sdiy] slider/fader slot cutting techniques
> Till: xyzzy at sysabend.org, "Synth DIY" <synth-diy at dropmix.xs4all.nl>
> Datum: onsdag 10 december 2008 05.00
> Thanks again to the many prompt responses. I think that the
> chanukah
> fairy is bringing me a dremel tool this year - if it's
> friendly to ABS
> I might try that. Honestly, it would be as much effort
> identifying a
> friend-of-a-friend-of-a-friend with a milling tool, at this
> point- I'm
> not connected to anyone doing hobbyist activities who would
> have a
> milling machine. I'm stumped on going that route,
> understand the
> principles and it appeals to me but it would be a big
> effort just to
> identify a resource and work with them.
> 
> For dremeling the ABS and keeping things in a straight
> line, I'm
> thinking guide drill holes at either end of my slot are a
> good way to
> keep things in line, as previously mentioned in this
> thread?
> 
> Tom- thanks for the words about goggles- With plastic being
> what it is
> I'm thinking a basic face mask too, anti-dust, typical
> hospital type
> deal...
> 
> P
> 
> On Tue, Dec 9, 2008 at 4:13 PM, Tom Arnold
> <xyzzy at sysabend.org> wrote:
> > On Tue, Dec 09, 2008 at 03:19:57PM -0800, Paul Dickow
> wrote:
> >> PS, I'm guessing some of the
> tooling/thinking/process will be similar
> >> for ABS as it will for aluminum, in any case?
> >
> > For ABS on a mill you really want a coated endmill,
> otherwise yeah its the
> > same.
> >
> > ABS is much easier to work so a dremel will be a
> tolerable option, just buy
> > an extra tube of those little cutting disks and for
> goodness sake wear
> > goggles.
> >
> > --
> > 
> -----------------------------------------------------------------
> >  - Tom Arnold       -  Free Synth DIY webspace
> http://www.sdiy.org
> >  - SynthGeek        -
> >  - BBD Fanatic      -  "...is it a virus, a drug,
> or a religion?"
> >  - echo evho wjxo   -    Juanita Shrugs.
> "What's the difference?"
> >  --------------------
> >
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> >
> 
> 
> 
> -- 
> Paul Dickow
> STRATEGY
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