r c a raytheon company cavity magnetron klystron photomultiplier tube triode traveling-wave tube electron gun list of vacuum tubes image intensifier space charge 12 a x7 hot cathode getter tube sound sylvania electric products list of vacuum tube computers e l34 williams tube e l84 gyrotron 6 l6 6 v6 pentode krytron sovtek audion voltage reference field emission gun tetrode k t88 12 a u7 phototube secondary emission 6 s n7 tube socket control grid nuvistor aquadag mullard fleming valve 6 n2 p 6 n1 p battery (vacuum tube) 807 (vacuum tube) 6 d j8 backward-wave oscillator 12 a t7 wehnelt cylinder edison and swan electric light company k t66 vintage amateur radio williamson amplifier tube tester 6 p1 p j j electronic voltage-regulator tube e f86 300 b beam tetrode 6 n3 p svetlana (company) list of mullard– philips vacuum tubes grid dip oscillator vircator russian tube designations 5 y3 6 a q5 valve audio amplifier pentagrid converter output transformerless mullard– philips tube designation 6 a k5 e i niš h t (vacuum tube) cathode bias selectron tube compactron grid-leak detector nanoscale vacuum-channel transistor eimac g u-50 ultra-linear plate electrode loewe 3 n f amperex electronic
Nature_Vacuum