Encyclopedia: KT6...
Encyclopedia : K : KT : KT6 (2 articles)
KT66Original M-OV version of the KT66; this is from late production KT66 is the designator for a vacuum tube introduced by Marconi-Osram Valve Co. Ltd. (M-OV) of Britain in 1937. The KT66 is the direct descendant of the "Harries Valve" developed by British engineer J. Owen Harries and marketed b..
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