The traveling-wave tube in the history of telecommunication Damien F.G. Minenna, Frédéric André, Yves Elskens, Jean-François Auboin, Fabrice Doveil, Jérôme Puech and Élise Duverdier Eur. Phys. J. H, 44 1 (2019) 1-36 Published online: 16 January 2019 DOI: 10.1140/epjh/e2018-90023-1