• Thumbnail for KT66
    KT66 is the designator for a beam power tube introduced by Marconi-Osram Valve Co. Ltd. (M-OV) of Britain in 1937 and marketed for application as a power...
    8 KB (699 words) - 00:33, 7 July 2023
  • stage and a global negative feedback loop. Deep feedback, triode-connected KT66 power tetrodes, conservative choice of standing currents, and the use of...
    65 KB (7,418 words) - 19:28, 18 May 2024
  • Thumbnail for Marshall 1959
    with gold aluminum piping. There were other modifications: In 1966, the KT66 tubes of the JTM-models were replaced with EL34. After 1976, the plate voltages...
    9 KB (981 words) - 23:20, 6 June 2024
  • Thumbnail for Marshall JTM45
    5881 valves (a version of the 6L6) in the output stage; later models used KT66 (from 1964), EL34 (from 1966), or KT88 (from 1967; in the 200W Major), and...
    10 KB (1,012 words) - 21:42, 29 April 2024
  • output. The KT88 was introduced by GEC in 1956 as a larger variant of the KT66. It was manufactured in the U.K. by the MOV (Marconi-Osram Valve) subsidiary...
    6 KB (477 words) - 20:39, 1 September 2024
  • Thumbnail for EL34
    Marshall "Plexi" amps used the KT66, a beam tetrode similar to the 6L6, as well). 6CA7 KT77 6P27S (6П27С) EL84 6V6 6L6 5881 KT66 KT88 6550 List of vacuum tubes...
    8 KB (750 words) - 11:28, 20 July 2024
  • refinements since then. The last generation of power tubes, typified by KT66, EL34 and KT88, represent the pinnacle of the technology and of production...
    15 KB (1,996 words) - 17:21, 27 July 2023
  • Thumbnail for Vacuum tube
    which might convey some information, but only about their products; the KT66 and KT88 were "kinkless tetrodes". Later, consumer tubes were given names...
    120 KB (15,367 words) - 03:53, 22 September 2024
  • Thumbnail for Diezel
    amplifiers. The company was established in 1992. ^ 6L6, EL34, 5881, 6550, KT66, KT88, etc. can be used. Diezel offers 4x12 and 2x12 cabinets in front or...
    6 KB (214 words) - 20:20, 16 February 2023
  • Thumbnail for Marshall Amplification
    led to the use of Dagnall and Drake-made transformers, and a switch to the KT66 valve instead of the 6L6 tube commonly used in the United States. The changes...
    52 KB (6,793 words) - 14:36, 28 October 2024