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6304024 Impregnated-type cathode substrate with large particle diameter low porosity region and small particle diameter high porosity region  
There is provided an impregnated-type cathode substrate comprising a large particle diameter low porosity region and a small particle diameter high porosity region which is provided in a side of an...
5083097 Adaptive control system for pulsed megawatt klystrons  
The invention provides an arrangement for reducing waveform errors such as errors in phase or amplitude in output pulses produced by pulsed power output devices such as klystrons by generating an...
4961058 Feedback stabilization loop  
Stabilizing a signal generating source by coupling a small amount of the output power through a bandpass filter tuned to the desired frequency and injecting the power back into the source. In...
4084128 Demodulator for phase reversal modulation system  
1. A receiver for use in a PSK signal translation system comprising a voltage tunable local oscillator for continuously generating a reference frequency signal from which the suppressed carrier can...
3636476 SOLID-STATE DOUBLE RESONANT PULSER  
A pulser circuit for high-frequency tubes such as klystrons and the like wherein the klystron is driven "on" and "off" in response to the resonant charging and discharging of the klystron's grid...
3611147 PHASE-MODULATED BINARY DATA TRANSMISSION SYSTEM EMPLOYING A VARIABLE FREQUENCY OSCILLATOR  
A phase-modulated, high-power binary data transmission system includes a variable frequency oscillator klystron generating a carrier signal under the control of a binary information generator. The...
3609594 SOLID-STATE BACKWARD WAVE OSCILLATOR MODULATOR  
A solid-state modulator for driving a backward wave oscillator (BWO) to puce an output frequency that varies linearly with time. The modulator generates a voltage having an exponential waveform...
3596209 SIDELOBE SUPPRESSION BY PHASE CANCELLATION IN TRAVELING WAVE DEVICES  
A circuit arrangement is disclosed for substantial reduction of spurious sideband noise levels in radio frequency signals by coupling a fraction of the power supply voltage ripple directly to a...
3491312 SWEEP OSCILLATOR HAVING A SUBSTANTIALLY CONSTANT OUTPUT POWER LEVEL  
3441734 SOLID STATE INFRARED OSCILLATOR  
3412335 Automatic frequency control circuit  
3361992 Traveling wave tube modulator circuit  
3307115 Means for limiting the range of frequency regulation of oscillators  
3300735 Phase shift beam tube neutralizer and modulator  
3274510 Automatic frequency control for klystron coupling regulator tube to klystron shell  
3268762 Improved high frequency electron discharge devices of the klystron type  
3267322 Frequency stable temperature compensated electron tube  
3265985 Microwave oscillator having frequency and amplitude stabilization means  
3262114 Automatic electronic frequency control  
3258714 Automatic klystron peak mode adjustment  
3233188 Automatic frequency control for radar test apparatus  
3226654 System for automatically maximizing the power output of a frequency velocity-modulated oscillator  
3225314 Modulation system for a microwave tube having depressed collector  
3178654 Automatic frequency control system having an electrically tunable resonant circuit as a frequency reference element  
3178653 Cavity resonator with beamconcentric ring electrode  
3154739 Automatic frequency control system for high frequency transmitters  
3136954 Frequency control system utilizing magnetostrictive elements  
3135929 Frequency stabilization circuit for a klystron oscillator  
3125728 Title is not available  
3098980 Pulse shaping klystron modulator  
3045193 Switching arrangement for frequency stabilization of frequency modulated self-excited transmitter  
3041542 Broad-band discriminator system  
3034045 Voltage ratio meter for high-frequency calibration systems  
3028541 Magnetic resonance devices  
2991426 Proportional automatic frequency control circuit  
2965863 Magnetic tuned cavity resonator  
2934645 Automatically tuned microwave system  
2933598 Automatic frequency control circuit  
2921271 Transmitter stabilizer  
2917713 Frequency control system  
2916618 Pulse detector responsive to both pulse amplitude and duty cycle  
2915626 Automatic frequency control responsive to carrier frequency of distinctive pulse and preventing drift during signal failure  
2913718 Automatic power output and difference frequency control systems  
2884519 Search receiver with stop-on-signal means having sawtooth oscillator halted responsive to signal  
2882442 Method for stabilizing klystrons  
2872579 Frequency control  
2853612 Automatic frequency control system  
2838671 Automatic frequency control circuit  
2798946 Automatic frequency control system which stops hunting when in tune  
2786140 Apparatus for frequency interpolation  
Matches 1 - 50 out of 107 1 2 3 >