Abstract: A system includes a component having a signal input and a power supply input, wherein the power supply input is in communication with a power supply. The system also includes a voltage probe connected between the power supply input and the signal input, wherein the probe injects a compensating signal into the signal input to compensate for variations in an output signal of the power supply over time.

Abstract: An amplifier system is disclosed. The amplifier system includes a first amplifier, a second amplifier, and a phase noise suppression circuit. The first amplifier includes an input signal terminal and an output signal terminal. The second amplifier includes an input signal terminal and an output signal terminal. The input signal terminal of the second amplifier is coupled to the output signal terminal of the first amplifier. The phase noise suppression circuit includes first and second input terminals and an output terminal. The first input terminal of the phase noise suppression circuit is coupled to the input signal terminal of the first amplifier. The second input terminal of the phase noise suppression circuit is coupled to the output signal terminal of the second amplifier. The output terminal of the phase noise suppression circuit is coupled to the first amplifier.

Abstract: An amplifier system including a vacuum tube amplifier having an input signal terminal, an output signal terminal, and an electron source, and a control circuit having an input terminal coupled to one of the input signal terminal and the output signal terminal, and for controlling a kinetic energy of electrons emitted by the electron source based on one of an input signal to the vacuum tube amplifier and an output signal from the vacuum tube amplifier. According to another embodiment, the control circuit may be for controlling an amount of electrons emitted by the electron source based on one of the input signal to the vacuum tube amplifier and the output signal from the vacuum tube amplifier.

Abstract: An amplifier system including a vacuum tube amplifier having an input signal terminal, an output signal terminal, and an electron source, and a control circuit having an input terminal coupled to one of the input signal terminal and the output signal terminal, and for controlling a kinetic energy of electrons emitted by the electron source based on one of an input signal to the vacuum tube amplifier and an output signal from the vacuum tube amplifier. According to another embodiment, the control circuit may be for controlling an amount of electrons emitted by the electron source based on one of the input signal to the vacuum tube amplifier and the output signal from the vacuum tube amplifier.

Abstract: An amplifier system, including a vacuum tube amplifier having an input signal terminal and an output signal terminal, and a phase noise suppression circuit having first and second input terminals and an output terminal, wherein the first input terminal is coupled to the input signal terminal of the vacuum tube amplifier, the second input terminal is coupled to the output signal terminal of the vacuum tube amplifier, and the output terminal is coupled to one of an electron source of the vacuum tube amplifier and an interaction region of the vacuum tube amplifier.

Abstract: An amplifier system. The amplifier system includes a vacuum tube amplifier, an electron source voltage modulation circuit, and a linearization circuit. The vacuum tube amplifier includes an input signal terminal and an output signal terminal. The electron source voltage modulation circuit includes an input terminal coupled to one of the input signal terminal and the output signal of the vacuum tube amplifier, and includes an output terminal coupled to one of an electron source of the vacuum tube amplifier and an interaction region of the vacuum tube amplifier. The linearization circuit is coupled to the input signal terminal of the vacuum tube amplifier.