【电学】作为天线的共振器

RESONATORS used in transit-time tubes

transit-time tube with equalising rings for the connection of resonators

optical RESONATORS used in lasers

cavity, coaxial dielectric or Lecher RESONATORS

impedance networks or resonators for TELECOMMUNICATION

amplifier with resonators

RESONATORS used in discharge tubes

RESONATORS for non-electric sound in particular musical instruments