noun

• A thermionic valve having four electrodes.

  ‘He was the one I was working with and I asked him if he could maybe build some tetrodes for us to experiment with.’

  More example sentences

  • ‘Power tetrodes are also sometimes used in amateur radio and industrial applications.’
  • ‘The three-pole array therefore acts as the feedback element stabilizing the operating point of the tetrode.’
  • ‘These tetrodes only have connections for four electrodes, but they include a pair of ‘beam forming plates’ that direct the electron flows.’
  • ‘The next generation of Thomson tetrodes will make it possible to reach the same levels of power at these frequencies in CW (continuous wave) operation, with an even higher efficiency’