Homebrew PCBs

Stefan,
This chap just used a Glass NTC thermistor!
http://www.ustr.net/smt/oven.htm
HTH
Regards
John C

> -----Original Message-----
> From: Stefan Trethan [mailto:stefan_trethan@...]
> Sent: 22 August 2006 10:15
> To: Homebrew_PCBs@yahoogroups.com
> Subject: Re: [Homebrew_PCBs] How not to control ovens - was - The list
> is huge! Really huge!
> 
> 
> On Tue, 22 Aug 2006 01:53:27 +0200, Andrew 
> <andrewm1973@...> wrote:
> 
> >
> > However - Unless its some magic type of LM335
> > (or LMx35 variant) then it is not going to like
> > the 200+ degrees inside an oven.  I think the
> > normal LM-whatever tematrature sensors top out
> > at 125 degrees.
> 
> 
> Yes, yes, of course thermocouple inside the oven.
> But the LMxxx would be needed as a cold junction 
> compensation, ad595 too  
> hard to get.
> 
> ST
> 
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