Homebrew PCBs

AD595AQ Thermocouple amplifier, laser trimmed to match K type but can be recalibrated for other thermocouples. 10mV/C
<http://www.analog.com/en/temperature-sensing-and-thermal-management/digital-temperature-sensors/ad595/products/product.html>

$11.76 each from Digikey.
<http://parts.digikey.com/1/parts/498915-ic-thermocouple-amp-w-comp-14dip-ad595aq.html>

Sparkfun article on using it with a 16F88 to turn a toaster-oven into a reflow solder oven with schematic and C code:
<http://www.sparkfun.com/commerce/tutorial_info.php?tutorials_id=60&page=>

Steve Greenfield