High Quality Content by WIKIPEDIA articles! The Wadley Loop circuit was designed by Dr. Trevor Wadley in the 1940s and was first used for a stable Wavemeter.In a traditional superheterodyne radio receiver, most oscillator drift and instability occurs in the first frequency converter stage, because it is tunable and operating at a high frequency. In theory, if one can eliminate this drift, the receiver will be stable.Unlike other drift-reducing techniques (such as crystal control or frequency synthesis), the Wadley Loop does not attempt to stabilize the oscillator. Instead, it cancels the drift mathematically.

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