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Radio frequency (rf) oscillators are commonly used to drive electrodes of ion guides. In this article a rf oscillator circuit design and its implementation is presented. The printed circuit board for the rf oscillator is designed and fabricated. The performance of the circuit was tested to transfer ions through a hexapole in a matrix-assisted laser desorption/ionization Fourier transform mass spectrometer. A comprehensive discussion of several aspects of printed circuit board design for high power and high frequency circuits is presented.