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Re: [motm] 490 parts questions

2008-05-30 by Jeff Laity

Thank you. Part numbers are very helpful, especially for caps and  
semiconductors. (hint, hint)

I think poly = polypropylene. They're dark red like kidney beans. I  
was trying to avoid using Digikey but I'll go ahead and order a bunch  
of components for my next three projects.



> From: "Paul Schreiber" <pschreiber@...>
> Date: May 29, 2008 10:49:58 PM PDT
> To: "MOTM List" <motm@yahoogroups.com>, "Jeff Laity" <synthetic@... 
> >
> Subject: Re: [motm] 490 parts questions
>
>
>> 1. Do I need to match the transistors (should I order extras)?
>
> No, there are SSM arrays for the required matched pairs.
>
>> 2. The project calls for "100(0)pf film caps." Can I use 0.1uF poly  
>> caps
>> in their place?
>
> Poly as in mylar? ACK (shudder!)
>
>> 3. If no, can I use these for the 0.1mf caps on the 390?
>
> Use the correct part for both, they are cheap enough from Digikey  
> (part #P4525). And only 403,000 in stock :)
>
> Paul S.
>
>



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