(under subclass 131) Subject matter where the discharge device includes structure to vary the relative velocity of different longitudinal portions of the electron beam resulting in electron bunching.
SEE OR SEARCH CLASS
315, Electric Lamp and Discharge Devices: Systems,
5+, for a cathode- ray tube circuit where the ray traverses a hollow distributed parameter device and particularly indented thereunder subclasses 5.21+, 5.46+ and 5.53+ for tuning thereof.
331, Oscillators,
6+, for automatic frequency control in a klystron oscillator and subclass 83 for a klystron oscillator, per se.
