DIY Portable Incubator Temp Control Unit

In this video you will see a very nice portable incubator temperature control unit which I made for culturing bacteria(For analysis under a microscope), as well as hatching eggs. The unit is very well made, and the temperature spread is less than 1/2 a degree F. My unit is set to maintain 100 degrees F. This LM35/LM393 circuit can be used for other temperature control applications where more precision is required over a thermistor.

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Full schematic here: http://tinypic.com/m/k0oyec/4

Relay used: 5V DC SPDT Relay SRD-05VDC-SL-C

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