[sdiy] tempcos..

[James Patchell]

It is pretty close....it says it is +3000ppM/C which is a tad on the low 
side (+3300 ->+3500 is the range we are generally looking for)...
At 11:28 AM 9/2/2004 -0300, Luís Marka wrote:
>Gentleman,
>Is this what we are looking for?
>
>http://uk.farnell.com/jsp/endecaSearch/partDetail.jsp?SKU=732278&N=401
>
>Cheers,
>Luis Marka
>
>----- Original Message -----
>From: <damion at poweracoustics.org>
>To: "Ian Fritz" <ijfritz at earthlink.net>
>Cc: <synth-diy at dropmix.xs4all.nl>
>Sent: Tuesday, August 31, 2004 11:41 PM
>Subject: Re: [sdiy] tempcos..
>
>
> > I'll check that out. I'm certainly not afraid of surface mount stuff..
> > I need these for Ray Wilson's 'soundlab mini-synth' design.
> > and I'll certainly check out the dial-a-tempco too.
> >
> > Thanks,
> > Damion
> >
> > On Aug 31, 2004, at 6:40 PM, Ian Fritz wrote:
> >
> > > Not offhand, but easy enough to find for you.  :-)
> > >
> > > They call them Panasonic Metal Film Thermosensitive Chip Resistors.
> > > Page 865 in current catalog (T041)
> > > Part # is:    P + Value + "CDCT-ND",   if you use the 3300ppm/.1W
> > > variety.
> > > Price is 10/$5.52.
> > >
> > > Values only go up to 1.8k, so you can either modify your circuit to
> > > use 1.8k instead of 2k, or you can use 2 x1k in series, or you can use
> > > a circuit designed for 1k.  My dial-a-tempco circuit can be set up for
> > > any convenient tempco value.
> > >
> > >   Ian
> > >
> > >
> > > At 07:12 PM 8/31/2004, James Patchell wrote:
> > >> Do you know the Digikey part number...of hand?....
> > >>
> > >> At 07:04 PM 8/31/2004 -0600, Ian Fritz wrote:
> > >>> Don't forget the little surface mount ones that Digikey carries.
> > >>> Only ~60c IIRC.  Self heating could be an issue, but still probably
> > >>> worth trying ...
> > >
> > >
> > >
> > damion romero
> > damion at poweracoustics.org
> > http://poweracoustics.org
> >
> >

         -Jim
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