[sdiy] ASM-1 cap types

patchell patchell at silcom.com
Tue Mar 25 04:24:42 CET 2003


    I use NPO for stuff smaller than 100pF.  I use an NPO 18pF in the ASM-1
oscilator with no problems...

Stephen Begin wrote:

> I did check the archive for this, but didn't find any answers
>
> I'm hoping to build an ASM-1 as my next project, and I'm having trouble
> figuring out what kind of caps to use.  I guess I don't have the experience
> to tell me what would be good choices, it mentions that polystyrene and
> polycarbonate caps are "good caps" and on the elby designs page where they
> sell the kit, they say
> "All capacitors less than 1nF are generally polystyrene*
> All capacitors between 1nF and 1uF are generally polyester*
> All capacitors greater than 1uF are generally tantalum* "
>
> I can't seem to find polystyrene caps smaller than 100pF on mouser, would
> ceramic be okay for the 18pF and 30pF caps?

--
 -Jim
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