This is a no nonsense book on how to get quickly down to component values for the EMI filter. High Q component is required for the main filter components, but lists places where a low Q, less expensive, component may be used. This method yields a low circuit, Q, so the filter will not oscillate. This book provides matrix transfer functions for all the needed circuitry, so the reader can develop their own computer program, or can, also, purchase the EMI filter design from Sherwood Associates. EMI Filter Design gives quick techniques to determine which over limit peak on the spectrum analyzer trace requires the most loss, so the filter design will reduce all the peaks below the required specification.