Asynchronous quenching of the van der Pol oscillator

Results of analog computer experiments are presented which indicate that the phenomenon known traditionally as asynchronous quenching is actually synchronization at large values of the detuning parameter, as had been proposed earlier by Pengilley and Milner. The relationship of these results to earlier analyses of van der Pol and Kobzarev is discussed and certain shortcomings of the Minorsky stroboscope analysis are indicated.