%0 Journal Article %T Valve J. A. Fleming: background and its invention %A Pestrikov, V.M. %K alternating current, rectifier, wave meter, cimometer, high-frequency wave meter, Nodon cell, Wehnelt rectifier, valve effect, Fleming wave meter, Fleming valve, agreement with Marconi company %J Infocommunications and Radio Technologies %D 2019 %N 2 %P 20 %I Federal State Educational Institution of Higher Education Sevastopol State University