autodyne

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au·to·dyne

A0534600 (ô′tə-dīn′)n. A heterodyne radio device in which one tube serves simultaneously as oscillator and detector.
[auto- + (hetero)dyne.]
au′to·dyne′ adj.

autodyne

(ˈɔːtəʊˌdaɪn) adj (Electronics) electronics denoting or relating to an electrical circuit in which the same elements and valves are used as oscillator and detector