[sdiy] .01uf Silver Mica

[harrybissell]

Tempco is about the same, dielectric absorption of silver
mica is a little worse (not much)... temperature range of
silver mica is WAY better... but unless you gig the Mojave
Desert at noon, in July... under the hood of your car... :^P

H^) harry

James Patchell wrote:
> 
> I am not sure what the tempco of the Micas are, but Polystyrene has a
> tempco of about -100ppM.
> 
> At 04:58 PM 1/24/2006 -0800, Tim Parkhurst wrote:
> >On 1/24/06, Colin Raffel <colin at experimentalistsanonymous.com> wrote:
> > > I built one of Ray's VCOs (http://musicfromouterspace.com/analogsynth/
> > > VCO200503REV01/VCO200503REV01.html) but it's been revised (http://
> > > musicfromouterspace.com/analogsynth/VCO200503REV01/
> > > tomandianssuggestions.html) but I still want to use a silvered mica
> > > cap for C6... but Mouser sells .01uf silver mica's for $9 apiece!
> > > Sheesh!  Is there any other substitute that will be as stable as the
> > > mica but perhaps less pricey?
> > >
> > > -Colin
> > >
> >
> >Holy Cats! $9 each? Is there REALLLY a noticeable difference between a
> >silver mica and a good polystyrene (available for less than $1)?
> >
> >Tim (meOW!) Servo
> >--
> >"Imagination is more important than knowledge." - Albert Einstein
> 
>          -Jim
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> http://www.oldcrows.net/~patchell
> 
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