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Consideration is given to simultaneous asynchronous oscillations in systems having a moving reference point. The system chosen for study is a Class-C pentode oscillator. It is shown, both analytically and experimentally, that self-starting asynchronous oscillations are attainable in such a system. Transient and steady-state solutions are obtained for the Class-C oscillator containing one and two degrees of freedom. The method of analysis employed is that of equivalent linearization as described by Kryloff and Bogoluiboff. The existence of asynchronous oscillations is also explained by the phenomenon of negative discrimination.