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Application Note 956-1 The Criterion for the Tangential Sensitivity Measurement
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... pulse whose bottom level coincides with the top level of the noise on either side of the pulse (Figure 1). Although the corresponding signal-to-noise ratio depends on many system factors, the generally accepted ratio of 8 dB at the output correlates well with the tangential appearance on the oscillo ...
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Download the Quiz
Download the Quiz

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Valve RF amplifier



A valve RF amplifier (UK and Aus.) or tube amplifier (U.S.), is a device for electrically amplifying the power of an electrical radio frequency signal.Low to medium power valve amplifiers for frequencies below the microwaves were largely replaced by solid state amplifiers during the 1960s and 1970s, initially for receivers and low power stages of transmitters, transmitter output stages switching to transistors somewhat later. Specially constructed valves are still in use for very high power transmitters, although rarely in new designs.
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