[sdiy] Capacitor substitution

mrmike mrmike at clickbang.com
Tue Apr 3 16:49:08 CEST 2007


Thank you; I had wondered about that. It looks like a good place to 
start. Of course, I couldn't figure out why the schematic specd caps 
that seemed rare, and I checked again. I missed som zeros when making my 
parts list: 33pF instead of the readlily available 330pF. Duh.

Good advice for other designs, tho.

mrmike

harrybissell at copper.net wrote:
> In small values, Ceramic COG (also called NP0)
> are not a bad choice at all.
>
> Mica are OK as well but they really don't
> outperform the ceramics and are much more expensive
>
> H^) harry
>
>
>   
>>
>> ---- Original Message ----
>> From: mrmike at clickbang.com
>> To: synth-diy at dropmix.xs4all.nl
>> Subject: RE: [sdiy] Capacitor substitution
>> Date: Mon, 02 Apr 2007 11:11:04 -0500
>>
>>     
>>> Having failed in my search for small value (<100pF) polystyrene
>>>       
>> caps, I 
>>     
>>> was looking at a quality substitution. I can't find any
>>>       
>> polycarbonate 
>>     
>>> either. Or polypropylene.
>>>
>>> Would a good mica (rated at +/- 1pF tolerance) be a good
>>>       
>> substitute?
>>     
>>> mrmike
>>> _______________________________________________
>>> Synth-diy mailing list
>>> Synth-diy at dropmix.xs4all.nl
>>> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>>>       
>
>
>
>   




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