Critical properties of some electronic circuits are prone to drift due to changes in ambient temperature. A component oven is a small chamber which encloses the temperature-sensitive components in such a circuit. A heat source elevates the temperature of the air inside the chamber to a stable point above the expected maximum ambient temperature. In this way, the temperature of the sensitive circuit element remains constant, and the circuit no longer drifts. The oven controller determines the steady-state accuracy of the oven temperature.
 

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