powertubes E34L, pentodes EL34, kinkless tetrodes (KT series) KT77, 6CA7
Powertubes, power pentodes type 6L6GC, 6L6 series, KT66 series, 5881 series, 7027 series, 6P3 series
powertubes EL84, 6BQ5A, E84L, 6P14P series, SV83, 6P15P, 6P14P-K, 6P14P-EB, 6P14P-EV
powertuves, power tetrodes 6V6GT, 6AY6, 6P6 series, VT-107
powertubes 6550C, 6550A, KT88, KT90, KT100, KT120, KT150 kinkless Tetrode
audiotriode 300B, triode 2A3, powertriode 320B, 520B EML, 520B V3, 300B XLS, 300B+
powertriode 211, VT4-C, 845, WE211, WE845, 805, 805A with Uf=10v healter
other power pentodes or tetrodes or beam power tubes
other power triodes
