Before revision: Gyroklystron The gyroklystron is a microwave amplifier with operation dependent on the cyclotron resonance condition.
After revision: Picture of a three cavity coaxial gyroklystron tube, University of Maryland, IREAPEngineering diagram of a four cavity coaxial gyroklystron at the University of Maryland, IREAPGyroklystron The gyroklystron is a microwave amplifier with operation dependent on the cyclotron resonance condition.