electron-photon
electron-proton
electron-ray
electron-sensitive
electron-sound
electron-spin-resonance
electron-stream
electron-temperature
electron-transit
electron-trapping
  electron-tube
electron-vibrational
electronvolt
electron-wave
electronystagmograph
electrooptic
electro-optical
electrooptical
electrooptically
electrooptic-beam
electrooptics

    electron-tube amplifier

    ламповый усилитель