Fig. 3. The Novosibirsk pulsed gyrocons, (a) The electrostatic bender model, (b) The dual first-order bender model, (c) The conical bender with the first-order bender. (1) The electron gun, (2) the first focus solenoid, (3) the deflection cavity, (4) the electrostatic bender, (5) the output cavity, (6) the compensation coil, (7) the collector, (8) the compensation field pole piece, (9,10) first-order bender magnets, and (11) the conical bender magnet. Fig. 4. The radial-style gyrocon: (1) the first focus coil; (2) the output focus coils; (3) the conical bender solenoid; (4) the collector; (5) the output cavity; (6) rf output line; and (7) the electron beam. The spherical gyrocon differs from low frequency, radial-style gyrocons built at Novosibirsk and at the Los Alamos Scientific Laboratory (LASL) (Figure 4) primarily in omission of the conical bender solenoid. This removes considerable beam
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