01119nam 2200385 450 991082612840332120230808205706.03-7369-8239-9(CKB)4340000000200799(MiAaPQ)EBC5022871(EXLCZ)99434000000020079920171002h20162016 uy 0engurcnu||||||||rdacontentrdamediardacarrierFilter helices in low-frequency traveling-wave tubes /Von Elke Gehrmann1. Auflage.Gottingen, [Germany] :Cuvillier Verlag,2016.©20161 online resource (116 pages) illustrations3-7369-9239-4 Includes bibliographical references.Power amplifiersPower amplifiers.621.38412Gehrmann Elke1625516MiAaPQMiAaPQMiAaPQBOOK9910826128403321Filter helices in low-frequency traveling-wave tubes3961021UNINA