Or maybe: -
http://groups.yahoo.com/group/E-Z_Bake/This thread is related to Stefan's toaster oven mods to be able to bake direct inkjet pcbs; and perhaps to double as a reflow oven (my objective). BTW, I bought the MAX6675 (A$8.64), much happier now, thanks to help from members of this list. BTW2 a diode compensator requires a isothermal block at the cold junction; the MAX6675 gets away without this.
Regards
John C
> -----Original Message-----
> From: Steve [mailto:alienrelics@...]
> Sent: 25 August 2006 07:13
> To: Homebrew_PCBs@yahoogroups.com
> Subject: [Homebrew_PCBs] Re: How to DO thermocouple interfacing
> BTW, this needs to move to Electronics_101. I've posted a rough
> schematic/block diagram of a potential circuit using a Silicon diode
> for cold junction compensation, with a simple Wheatstone bridge
> circuit to use your DMM as a thermometer, only active part is a
> voltage regulator. 1mV/C.
>
> http://groups.yahoo.com/group/Electronics_101/
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> Steve Greenfield
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